* [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm)
@ 2017-09-04 14:00 Igor Mammedov
2017-09-04 14:00 ` [Qemu-devel] [PATCH 1/6] qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts Igor Mammedov
` (5 more replies)
0 siblings, 6 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 14:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Eduardo Habkost, Andrew Jones, Richard Henderson
Issue 1:
Some callers call CPUClass->parse_features manually to convert
'-cpu cpufoo,featurestr' string to cpu type and featurestr
into a set of global properties and then do controlled
cpu creation with setting properties and completing it with realize.
That's a lot of code duplication as they all are practically
reimplement the same parsing logic.
Some use cpu_generic_init() instead which does the same parsing
along with creation/realizing cpu within one wrapper.
And some trying to switch to controlled cpu creation,
implement object_new()/set properties/realize steps
but forget feature parsing logic witch leads to 'bugs'
commit (00909b585 hw/arm/integratorcp: Support specifying features via -cpu)
Issue 2:
Default cpu model selection logic is spread over all board's
machine_init() fuctions but it's basicallyi hardcodes default
cpu model string in init function.
if (!cpu_model) {
cpu_model = "some cpu model string";
}
and written in different ways.
it forces machine_init callbacks to parse cpu_model string
either by using cpu_generic_init() or by manually calling
cpu_class_by_name()/CPUClass::parse_features to perform
name to cpu type translation.
This series moves -cpu option parsing to generic machine code
that removes some of code duplication and makes cpus creation
process more generic/simple:
* unify default (fallback) cpu type handling by replacing
hardcoded cpu_model strings with cpu type directly in
machine_foo_class_init() {
MachineClass::default_cpu_type = BOARD_DEFAULT_CPU_TYPE
}
which allows to generalize move cpu model parsing instead of
parsing it in each board.
* make generic machine vl.c parse cpu_model into properties/cpu_type
and let boards use cpu_type without any cpu_model prasing.
Generic parsing will kick in only if board advertises its support
by setting MachineClass::default_cpu_type to a cpu type.
PS:
I intend make tree-wide conversion but as one series it's too many patches,
so I'm splitting out it into an intial series that implements generic
part and several patchsets that will do per target conversion.
As part of initial series x86 and ARM targets conversion is included
to showcase generalization usage. Per target conversions are done
as 1 patch per target, it might be too much for targets that have lots
of boards (ARM) so let me know if you'd like to split it on per board
basis (then I'll respin it as separate series on top of generic patches)
github tree for testing:
https://github.com/imammedo/qemu.git default_machine_cpu_type_PC_ARM
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: Andrew Jones <drjones@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
Igor Mammedov (6):
qom: cpus: split cpu_generic_init() on feature parsing and cpu
creation parts
cpu: make cpu_generic_init() abort QEMU on error
cpu: rename cpu_parse_features() to cpu_parse_cpu_model()
vl.c: convert cpu_model to cpu type and set of global properties
before machine_init()
pc: use generic cpu_model parsing
arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type
directly
include/hw/arm/armv7m.h | 2 +-
include/hw/arm/aspeed_soc.h | 2 +-
include/hw/arm/stm32f205_soc.h | 2 +-
include/hw/boards.h | 6 ++++++
include/qom/cpu.h | 22 +++++++++++++++++++
target/arm/cpu.h | 3 +++
target/i386/cpu.h | 9 ++++++++
bsd-user/main.c | 4 ----
hw/alpha/dp264.c | 4 ----
hw/arm/armv7m.c | 40 +++++-----------------------------
hw/arm/aspeed_soc.c | 13 +++++------
hw/arm/collie.c | 10 +++------
hw/arm/exynos4210.c | 6 +-----
hw/arm/gumstix.c | 5 +++--
hw/arm/highbank.c | 10 ++++-----
hw/arm/integratorcp.c | 30 ++------------------------
hw/arm/mainstone.c | 9 ++++----
hw/arm/mps2.c | 17 ++++++---------
hw/arm/musicpal.c | 11 ++--------
hw/arm/netduino2.c | 2 +-
hw/arm/nseries.c | 4 +++-
hw/arm/omap1.c | 11 ++--------
hw/arm/omap2.c | 8 ++-----
hw/arm/omap_sx1.c | 5 ++++-
hw/arm/palm.c | 5 +++--
hw/arm/pxa2xx.c | 18 ++++------------
hw/arm/realview.c | 25 +++++----------------
hw/arm/spitz.c | 12 ++++++-----
hw/arm/stellaris.c | 16 ++++++--------
hw/arm/stm32f205_soc.c | 4 ++--
hw/arm/strongarm.c | 15 +++----------
hw/arm/tosa.c | 4 ----
hw/arm/versatilepb.c | 15 +++----------
hw/arm/vexpress.c | 32 +++++++++------------------
hw/arm/virt.c | 46 ++++++++-------------------------------
hw/arm/xilinx_zynq.c | 10 ++-------
hw/arm/z2.c | 9 +++-----
hw/i386/pc.c | 41 +++++------------------------------
hw/i386/pc_piix.c | 4 +---
hw/lm32/lm32_boards.c | 8 -------
hw/lm32/milkymist.c | 4 ----
hw/m68k/an5206.c | 4 ----
hw/m68k/mcf5208.c | 4 ----
hw/mips/cps.c | 4 ----
hw/mips/mips_fulong2e.c | 4 ----
hw/mips/mips_jazz.c | 4 ----
hw/mips/mips_malta.c | 4 ----
hw/mips/mips_mipssim.c | 4 ----
hw/mips/mips_r4k.c | 4 ----
hw/moxie/moxiesim.c | 4 ----
hw/openrisc/openrisc_sim.c | 4 ----
hw/ppc/e500.c | 4 ----
hw/ppc/mac_newworld.c | 4 ----
hw/ppc/mac_oldworld.c | 4 ----
hw/ppc/ppc440_bamboo.c | 4 ----
hw/ppc/ppc4xx_devs.c | 5 -----
hw/ppc/prep.c | 9 --------
hw/ppc/virtex_ml507.c | 4 ----
hw/sh4/r2d.c | 4 ----
hw/sh4/shix.c | 4 ----
hw/sparc/leon3.c | 4 ----
hw/sparc/sun4m.c | 4 ----
hw/sparc64/sparc64.c | 4 ----
hw/tricore/tricore_testboard.c | 4 ----
hw/unicore32/puv3.c | 4 ----
hw/xtensa/sim.c | 5 -----
hw/xtensa/xtfpga.c | 5 -----
linux-user/main.c | 4 ----
qom/cpu.c | 49 ++++++++++++++++++++++++++----------------
target/arm/cpu.c | 2 +-
target/i386/cpu.c | 3 ---
vl.c | 10 +++++++++
72 files changed, 198 insertions(+), 485 deletions(-)
--
2.7.4
^ permalink raw reply [flat|nested] 37+ messages in thread
* [Qemu-devel] [PATCH 1/6] qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts
2017-09-04 14:00 [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm) Igor Mammedov
@ 2017-09-04 14:00 ` Igor Mammedov
2017-09-04 15:30 ` Philippe Mathieu-Daudé
2017-09-04 14:00 ` [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error Igor Mammedov
` (4 subsequent siblings)
5 siblings, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 14:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Eduardo Habkost, Andrew Jones, Richard Henderson
it would allow to reuse feature parsing part in various machines
that have CPU features instead of re-implementing the same feature
parsing each time.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
include/qom/cpu.h | 21 +++++++++++++++++++++
qom/cpu.c | 46 ++++++++++++++++++++++++++++++----------------
2 files changed, 51 insertions(+), 16 deletions(-)
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index b7ac949..a92a7d2 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -633,6 +633,27 @@ void cpu_reset(CPUState *cpu);
ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
/**
+ * cpu_create:
+ * @typename: The CPU type.
+ *
+ * Instantiates a CPU and realizes the CPU.
+ *
+ * Returns: A #CPUState or %NULL if an error occurred.
+ */
+CPUState *cpu_create(const char *typename);
+
+/**
+ * cpu_parse_features:
+ * @typename: The CPU base type or CPU type.
+ * @cpu_model: The model string including optional parameters.
+ *
+ * processes optional parameters and registers them as global properties
+ *
+ * Returns: type of CPU to create or %NULL if an error occurred.
+ */
+const char *cpu_parse_features(const char *typename, const char *cpu_model);
+
+/**
* cpu_generic_init:
* @typename: The CPU base type.
* @cpu_model: The model string including optional parameters.
diff --git a/qom/cpu.c b/qom/cpu.c
index deb8880..d715890 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -53,13 +53,26 @@ bool cpu_exists(int64_t id)
return !!cpu_by_arch_id(id);
}
-CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
+CPUState *cpu_create(const char *typename)
+{
+ Error *err = NULL;
+ CPUState *cpu = CPU(object_new(typename));
+ object_property_set_bool(OBJECT(cpu), true, "realized", &err);
+ if (err != NULL) {
+ error_report_err(err);
+ object_unref(OBJECT(cpu));
+ return NULL;
+ }
+ return cpu;
+}
+
+const char *cpu_parse_features(const char *typename, const char *cpu_model)
{
- CPUState *cpu = NULL;
ObjectClass *oc;
CPUClass *cc;
Error *err = NULL;
gchar **model_pieces;
+ const char *cpu_type;
model_pieces = g_strsplit(cpu_model, ",", 2);
@@ -69,27 +82,28 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
return NULL;
}
+ cpu_type = object_class_get_name(oc);
cc = CPU_CLASS(oc);
- /* TODO: all callers of cpu_generic_init() need to be converted to
- * call parse_features() only once, before calling cpu_generic_init().
- */
- cc->parse_features(object_class_get_name(oc), model_pieces[1], &err);
+ cc->parse_features(cpu_type, model_pieces[1], &err);
g_strfreev(model_pieces);
if (err != NULL) {
- goto out;
- }
-
- cpu = CPU(object_new(object_class_get_name(oc)));
- object_property_set_bool(OBJECT(cpu), true, "realized", &err);
-
-out:
- if (err != NULL) {
error_report_err(err);
- object_unref(OBJECT(cpu));
return NULL;
}
+ return cpu_type;
+}
- return cpu;
+CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
+{
+ /* TODO: all callers of cpu_generic_init() need to be converted to
+ * call cpu_parse_features() only once, before calling cpu_generic_init().
+ */
+ const char *cpu_type = cpu_parse_features(typename, cpu_model);
+
+ if (cpu_type) {
+ return cpu_create(cpu_type);
+ }
+ return NULL;
}
bool cpu_paging_enabled(const CPUState *cpu)
--
2.7.4
^ permalink raw reply related [flat|nested] 37+ messages in thread
* [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-04 14:00 [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm) Igor Mammedov
2017-09-04 14:00 ` [Qemu-devel] [PATCH 1/6] qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts Igor Mammedov
@ 2017-09-04 14:00 ` Igor Mammedov
2017-09-04 15:15 ` Philippe Mathieu-Daudé
` (2 more replies)
2017-09-04 14:00 ` [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model() Igor Mammedov
` (3 subsequent siblings)
5 siblings, 3 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 14:00 UTC (permalink / raw)
To: qemu-devel
Cc: Eduardo Habkost, Andrew Jones, Richard Henderson, Jan Kiszka,
Peter Maydell, Andrzej Zaborowski, Michael Walle, Thomas Huth,
Aurelien Jarno, Yongbok Kim, Hervé Poussineau,
Anthony Green, Jia Liu, Stafford Horne, Alexander Graf,
David Gibson, Edgar E. Iglesias, Magnus Damm, Fabien Chouteau,
Mark Cave-Ayland, Artyom Tarasenko, Bastian Koppelmann,
Guan Xuetao, Max Filippov, Riku Voipio, Laurent Vivier
Almost every user of cpu_generic_init() checks for
returned NULL and then reports failure in a custom way
and aborts process.
Some users assume that call can't fail and don't check
for failure, though they should have checked for it.
In either cases cpu_generic_init() failure is fatal,
so instead of checking for failure and reporting
it various ways, make cpu_generic_init() report
errors in consistent way and terminate QEMU on failure.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
Even though it's tree wide change, it's trivial so all
affected call sites are included within one patch.
CC: Richard Henderson <rth@twiddle.net>
CC: Jan Kiszka <jan.kiszka@web.de>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Andrzej Zaborowski <balrogg@gmail.com>
CC: Michael Walle <michael@walle.cc>
CC: Thomas Huth <huth@tuxfamily.org>
CC: Aurelien Jarno <aurelien@aurel32.net>
CC: Yongbok Kim <yongbok.kim@imgtec.com>
CC: "Hervé Poussineau" <hpoussin@reactos.org>
CC: Anthony Green <green@moxielogic.com>
CC: Jia Liu <proljc@gmail.com>
CC: Stafford Horne <shorne@gmail.com>
CC: Alexander Graf <agraf@suse.de>
CC: David Gibson <david@gibson.dropbear.id.au>
CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
CC: Magnus Damm <magnus.damm@gmail.com>
CC: Fabien Chouteau <chouteau@adacore.com>
CC: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
CC: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
CC: Max Filippov <jcmvbkbc@gmail.com>
CC: Riku Voipio <riku.voipio@iki.fi>
CC: Laurent Vivier <laurent@vivier.eu>
---
include/qom/cpu.h | 3 ++-
bsd-user/main.c | 4 ----
hw/alpha/dp264.c | 4 ----
hw/arm/musicpal.c | 4 ----
hw/arm/omap1.c | 4 ----
hw/arm/omap2.c | 4 ----
hw/arm/pxa2xx.c | 8 --------
hw/arm/strongarm.c | 5 -----
hw/lm32/lm32_boards.c | 8 --------
hw/lm32/milkymist.c | 4 ----
hw/m68k/an5206.c | 4 ----
hw/m68k/mcf5208.c | 4 ----
hw/mips/cps.c | 4 ----
hw/mips/mips_fulong2e.c | 4 ----
hw/mips/mips_jazz.c | 4 ----
hw/mips/mips_malta.c | 4 ----
hw/mips/mips_mipssim.c | 4 ----
hw/mips/mips_r4k.c | 4 ----
hw/moxie/moxiesim.c | 4 ----
hw/openrisc/openrisc_sim.c | 4 ----
hw/ppc/e500.c | 4 ----
hw/ppc/mac_newworld.c | 4 ----
hw/ppc/mac_oldworld.c | 4 ----
hw/ppc/ppc440_bamboo.c | 4 ----
hw/ppc/ppc4xx_devs.c | 5 -----
hw/ppc/prep.c | 9 ---------
hw/ppc/virtex_ml507.c | 4 ----
hw/sh4/r2d.c | 4 ----
hw/sh4/shix.c | 4 ----
hw/sparc/leon3.c | 4 ----
hw/sparc/sun4m.c | 4 ----
hw/sparc64/sparc64.c | 4 ----
hw/tricore/tricore_testboard.c | 4 ----
hw/unicore32/puv3.c | 4 ----
hw/xtensa/sim.c | 5 -----
hw/xtensa/xtfpga.c | 5 -----
linux-user/main.c | 4 ----
qom/cpu.c | 13 ++++++-------
38 files changed, 8 insertions(+), 169 deletions(-)
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index a92a7d2..392ae75 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -649,7 +649,8 @@ CPUState *cpu_create(const char *typename);
*
* processes optional parameters and registers them as global properties
*
- * Returns: type of CPU to create or %NULL if an error occurred.
+ * Returns: type of CPU to create or prints error and terminates process
+ * if an error occurred.
*/
const char *cpu_parse_features(const char *typename, const char *cpu_model);
diff --git a/bsd-user/main.c b/bsd-user/main.c
index 8a6706a..836daac 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -902,10 +902,6 @@ int main(int argc, char **argv)
/* NOTE: we need to init the CPU at this stage to get
qemu_host_page_size */
cpu = cpu_init(cpu_model);
- if (!cpu) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
env = cpu->env_ptr;
#if defined(TARGET_SPARC) || defined(TARGET_PPC)
cpu_reset(cpu);
diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c
index 1c5a177..1b12130 100644
--- a/hw/alpha/dp264.c
+++ b/hw/alpha/dp264.c
@@ -68,10 +68,6 @@ static void clipper_init(MachineState *machine)
memset(cpus, 0, sizeof(cpus));
for (i = 0; i < smp_cpus; ++i) {
cpus[i] = ALPHA_CPU(cpu_generic_init(TYPE_ALPHA_CPU, cpu_model));
- if (!cpus[i]) {
- error_report("Unable to find CPU definition");
- exit(1);
- }
}
cpus[0]->env.trap_arg0 = ram_size;
diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
index a8b3d46..64c8e09 100644
--- a/hw/arm/musicpal.c
+++ b/hw/arm/musicpal.c
@@ -1594,10 +1594,6 @@ static void musicpal_init(MachineState *machine)
cpu_model = "arm926";
}
cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, cpu_model));
- if (!cpu) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
/* For now we use a fixed - the original - RAM size */
memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",
diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
index 400ba30..04e65ce 100644
--- a/hw/arm/omap1.c
+++ b/hw/arm/omap1.c
@@ -3864,10 +3864,6 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
/* Core */
s->mpu_model = omap310;
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core));
- if (s->cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
s->sdram_size = sdram_size;
s->sram_size = OMAP15XX_SRAM_SIZE;
diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
index ece25ae..5821477 100644
--- a/hw/arm/omap2.c
+++ b/hw/arm/omap2.c
@@ -2262,10 +2262,6 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
/* Core */
s->mpu_model = omap2420;
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core ?: "arm1136-r2"));
- if (s->cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
s->sdram_size = sdram_size;
s->sram_size = OMAP242X_SRAM_SIZE;
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index b0ac3cf..c16657d 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -2067,10 +2067,6 @@ PXA2xxState *pxa270_init(MemoryRegion *address_space,
revision = "pxa270";
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, revision));
- if (s->cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
/* SDRAM & Internal Memory Storage */
@@ -2197,10 +2193,6 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
s = g_new0(PXA2xxState, 1);
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, "pxa255"));
- if (s->cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
/* SDRAM & Internal Memory Storage */
diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
index 884242b..c1145dd 100644
--- a/hw/arm/strongarm.c
+++ b/hw/arm/strongarm.c
@@ -1599,11 +1599,6 @@ StrongARMState *sa1110_init(MemoryRegion *sysmem,
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
- if (!s->cpu) {
- error_report("Unable to find CPU definition");
- exit(1);
- }
-
memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
sdram_size);
memory_region_add_subregion(sysmem, SA_SDCS0, &s->sdram);
diff --git a/hw/lm32/lm32_boards.c b/hw/lm32/lm32_boards.c
index eccf0ac..b0bb3ef 100644
--- a/hw/lm32/lm32_boards.c
+++ b/hw/lm32/lm32_boards.c
@@ -105,10 +105,6 @@ static void lm32_evr_init(MachineState *machine)
cpu_model = "lm32-full";
}
cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
- exit(1);
- }
env = &cpu->env;
reset_info->cpu = cpu;
@@ -206,10 +202,6 @@ static void lm32_uclinux_init(MachineState *machine)
cpu_model = "lm32-full";
}
cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
- exit(1);
- }
env = &cpu->env;
reset_info->cpu = cpu;
diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c
index dffd879..4db4d2d 100644
--- a/hw/lm32/milkymist.c
+++ b/hw/lm32/milkymist.c
@@ -112,10 +112,6 @@ milkymist_init(MachineState *machine)
cpu_model = "lm32-full";
}
cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
- exit(1);
- }
env = &cpu->env;
reset_info->cpu = cpu;
diff --git a/hw/m68k/an5206.c b/hw/m68k/an5206.c
index 7b9b15d..9002c46 100644
--- a/hw/m68k/an5206.c
+++ b/hw/m68k/an5206.c
@@ -43,10 +43,6 @@ static void an5206_init(MachineState *machine)
cpu_model = "m5206";
}
cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
- if (!cpu) {
- error_report("Unable to find m68k CPU definition");
- exit(1);
- }
env = &cpu->env;
/* Initialize CPU registers. */
diff --git a/hw/m68k/mcf5208.c b/hw/m68k/mcf5208.c
index 1a0f180..b9dde75 100644
--- a/hw/m68k/mcf5208.c
+++ b/hw/m68k/mcf5208.c
@@ -233,10 +233,6 @@ static void mcf5208evb_init(MachineState *machine)
cpu_model = "m5208";
}
cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
- if (!cpu) {
- fprintf(stderr, "Unable to find m68k CPU definition\n");
- exit(1);
- }
env = &cpu->env;
/* Initialize CPU registers. */
diff --git a/hw/mips/cps.c b/hw/mips/cps.c
index 4ef337d..79d4c5e 100644
--- a/hw/mips/cps.c
+++ b/hw/mips/cps.c
@@ -72,10 +72,6 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
for (i = 0; i < s->num_vp; i++) {
cpu = cpu_mips_init(s->cpu_model);
- if (cpu == NULL) {
- error_setg(errp, "%s: CPU initialization failed", __func__);
- return;
- }
/* Init internal devices */
cpu_mips_irq_init_cpu(cpu);
diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
index 3532399..439a3d7 100644
--- a/hw/mips/mips_fulong2e.c
+++ b/hw/mips/mips_fulong2e.c
@@ -281,10 +281,6 @@ static void mips_fulong2e_init(MachineState *machine)
cpu_model = "Loongson-2E";
}
cpu = cpu_mips_init(cpu_model);
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu);
diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
index df2262a..ae10670 100644
--- a/hw/mips/mips_jazz.c
+++ b/hw/mips/mips_jazz.c
@@ -152,10 +152,6 @@ static void mips_jazz_init(MachineState *machine,
cpu_model = "R4000";
}
cpu = cpu_mips_init(cpu_model);
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu);
diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index af678f5..c82e0af 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -932,10 +932,6 @@ static void create_cpu_without_cps(const char *cpu_model,
for (i = 0; i < smp_cpus; i++) {
cpu = cpu_mips_init(cpu_model);
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
/* Init internal devices */
cpu_mips_irq_init_cpu(cpu);
diff --git a/hw/mips/mips_mipssim.c b/hw/mips/mips_mipssim.c
index 07fc4c2..49cd38d 100644
--- a/hw/mips/mips_mipssim.c
+++ b/hw/mips/mips_mipssim.c
@@ -164,10 +164,6 @@ mips_mipssim_init(MachineState *machine)
#endif
}
cpu = cpu_mips_init(cpu_model);
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
env = &cpu->env;
reset_info = g_malloc0(sizeof(ResetData));
diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c
index 2f5ced7..60da607 100644
--- a/hw/mips/mips_r4k.c
+++ b/hw/mips/mips_r4k.c
@@ -194,10 +194,6 @@ void mips_r4k_init(MachineState *machine)
#endif
}
cpu = cpu_mips_init(cpu_model);
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
env = &cpu->env;
reset_info = g_malloc0(sizeof(ResetData));
diff --git a/hw/moxie/moxiesim.c b/hw/moxie/moxiesim.c
index 4c27b45..5ea8dd3 100644
--- a/hw/moxie/moxiesim.c
+++ b/hw/moxie/moxiesim.c
@@ -119,10 +119,6 @@ static void moxiesim_init(MachineState *machine)
cpu_model = "MoxieLite-moxie-cpu";
}
cpu = MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
- if (!cpu) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu);
diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
index 243d802..86bf284 100644
--- a/hw/openrisc/openrisc_sim.c
+++ b/hw/openrisc/openrisc_sim.c
@@ -110,10 +110,6 @@ static void openrisc_sim_init(MachineState *machine)
for (n = 0; n < smp_cpus; n++) {
cpu = OPENRISC_CPU(cpu_generic_init(TYPE_OPENRISC_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition!\n");
- exit(1);
- }
qemu_register_reset(main_cpu_reset, cpu);
main_cpu_reset(cpu);
}
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index f0596f3..fc4786c 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -821,10 +821,6 @@ void ppce500_init(MachineState *machine, PPCE500Params *params)
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to initialize CPU!\n");
- exit(1);
- }
env = &cpu->env;
cs = CPU(cpu);
diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index d466634..33b46cb 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -189,10 +189,6 @@ static void ppc_core99_init(MachineState *machine)
for (i = 0; i < smp_cpus; i++) {
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find PowerPC CPU definition\n");
- exit(1);
- }
env = &cpu->env;
/* Set time-base frequency to 100 Mhz */
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index fcac399..193b904 100644
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -118,10 +118,6 @@ static void ppc_heathrow_init(MachineState *machine)
for (i = 0; i < smp_cpus; i++) {
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find PowerPC CPU definition\n");
- exit(1);
- }
env = &cpu->env;
/* Set time-base frequency to 16.6 Mhz */
diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
index ca26398..f92d47f 100644
--- a/hw/ppc/ppc440_bamboo.c
+++ b/hw/ppc/ppc440_bamboo.c
@@ -187,10 +187,6 @@ static void bamboo_init(MachineState *machine)
machine->cpu_model = "440EP";
}
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to initialize CPU!\n");
- exit(1);
- }
env = &cpu->env;
if (env->mmu_model != POWERPC_MMU_BOOKE) {
diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c
index 6b38ed7..88f3d4c 100644
--- a/hw/ppc/ppc4xx_devs.c
+++ b/hw/ppc/ppc4xx_devs.c
@@ -57,11 +57,6 @@ PowerPCCPU *ppc4xx_init(const char *cpu_model,
/* init CPUs */
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find PowerPC %s CPU definition\n",
- cpu_model);
- exit(1);
- }
env = &cpu->env;
cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */
diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
index 00f3321..94138a4 100644
--- a/hw/ppc/prep.c
+++ b/hw/ppc/prep.c
@@ -522,10 +522,6 @@ static void ppc_prep_init(MachineState *machine)
for (i = 0; i < smp_cpus; i++) {
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find PowerPC CPU definition\n");
- exit(1);
- }
env = &cpu->env;
if (env->flags & POWERPC_FLAG_RTC_CLK) {
@@ -726,11 +722,6 @@ static void ibm_40p_init(MachineState *machine)
machine->cpu_model = "604";
}
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
- if (!cpu) {
- error_report("could not initialize CPU '%s'",
- machine->cpu_model);
- exit(1);
- }
env = &cpu->env;
if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
error_report("only 6xx bus is supported on this machine");
diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index d5fdc16..ed9b406 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -97,10 +97,6 @@ static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size,
qemu_irq *irqs;
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to initialize CPU!\n");
- exit(1);
- }
env = &cpu->env;
ppc_booke_timers_init(cpu, sysclk, 0/* no flags */);
diff --git a/hw/sh4/r2d.c b/hw/sh4/r2d.c
index 22bc534..16b9ed2 100644
--- a/hw/sh4/r2d.c
+++ b/hw/sh4/r2d.c
@@ -247,10 +247,6 @@ static void r2d_init(MachineState *machine)
}
cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
env = &cpu->env;
reset_info = g_malloc0(sizeof(ResetData));
diff --git a/hw/sh4/shix.c b/hw/sh4/shix.c
index 7f8a4b6..50ee36a 100644
--- a/hw/sh4/shix.c
+++ b/hw/sh4/shix.c
@@ -57,10 +57,6 @@ static void shix_init(MachineState *machine)
cpu_model = "any";
cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
/* Allocate memory space */
memory_region_init_ram(rom, NULL, "shix.rom", 0x4000, &error_fatal);
diff --git a/hw/sparc/leon3.c b/hw/sparc/leon3.c
index 56512ec..ec2816b 100644
--- a/hw/sparc/leon3.c
+++ b/hw/sparc/leon3.c
@@ -127,10 +127,6 @@ static void leon3_generic_hw_init(MachineState *machine)
}
cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
- exit(1);
- }
env = &cpu->env;
cpu_sparc_set_id(env, 0);
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index cf47dca..e1bdd48 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -798,10 +798,6 @@ static void cpu_devinit(const char *cpu_model, unsigned int id,
CPUSPARCState *env;
cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
- exit(1);
- }
env = &cpu->env;
cpu_sparc_set_id(env, id);
diff --git a/hw/sparc64/sparc64.c b/hw/sparc64/sparc64.c
index ecf38a4..097d529 100644
--- a/hw/sparc64/sparc64.c
+++ b/hw/sparc64/sparc64.c
@@ -354,10 +354,6 @@ SPARCCPU *sparc64_cpu_devinit(const char *cpu_model,
cpu_model = default_cpu_model;
}
cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find Sparc CPU definition\n");
- exit(1);
- }
env = &cpu->env;
env->tick = cpu_timer_create("tick", cpu, tick_irq,
diff --git a/hw/tricore/tricore_testboard.c b/hw/tricore/tricore_testboard.c
index 3fcd8bb..0486f8a 100644
--- a/hw/tricore/tricore_testboard.c
+++ b/hw/tricore/tricore_testboard.c
@@ -75,10 +75,6 @@ static void tricore_testboard_init(MachineState *machine, int board_id)
machine->cpu_model = "tc1796";
}
cpu = TRICORE_CPU(cpu_generic_init(TYPE_TRICORE_CPU, machine->cpu_model));
- if (!cpu) {
- error_report("Unable to find CPU definition");
- exit(1);
- }
env = &cpu->env;
memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
2 * 1024 * 1024, &error_fatal);
diff --git a/hw/unicore32/puv3.c b/hw/unicore32/puv3.c
index eb9862f..504ea46 100644
--- a/hw/unicore32/puv3.c
+++ b/hw/unicore32/puv3.c
@@ -128,10 +128,6 @@ static void puv3_init(MachineState *machine)
}
cpu = UNICORE32_CPU(cpu_generic_init(TYPE_UNICORE32_CPU, cpu_model));
- if (!cpu) {
- error_report("Unable to find CPU definition");
- exit(1);
- }
env = &cpu->env;
puv3_soc_init(env);
diff --git a/hw/xtensa/sim.c b/hw/xtensa/sim.c
index 1b4767f..b3580b1 100644
--- a/hw/xtensa/sim.c
+++ b/hw/xtensa/sim.c
@@ -85,11 +85,6 @@ static void xtensa_sim_init(MachineState *machine)
for (n = 0; n < smp_cpus; n++) {
cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
- if (cpu == NULL) {
- error_report("unable to find CPU definition '%s'",
- cpu_model);
- exit(EXIT_FAILURE);
- }
env = &cpu->env;
env->sregs[PRID] = n;
diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index 182ec1e..a19cceb 100644
--- a/hw/xtensa/xtfpga.c
+++ b/hw/xtensa/xtfpga.c
@@ -233,11 +233,6 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
for (n = 0; n < smp_cpus; n++) {
cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
- if (cpu == NULL) {
- error_report("unable to find CPU definition '%s'",
- cpu_model);
- exit(EXIT_FAILURE);
- }
env = &cpu->env;
env->sregs[PRID] = n;
diff --git a/linux-user/main.c b/linux-user/main.c
index 03666ef..829f974 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -4323,10 +4323,6 @@ int main(int argc, char **argv, char **envp)
/* NOTE: we need to init the CPU at this stage to get
qemu_host_page_size */
cpu = cpu_init(cpu_model);
- if (!cpu) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(EXIT_FAILURE);
- }
env = cpu->env_ptr;
cpu_reset(cpu);
diff --git a/qom/cpu.c b/qom/cpu.c
index d715890..307d638 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
if (err != NULL) {
error_report_err(err);
object_unref(OBJECT(cpu));
- return NULL;
+ exit(EXIT_FAILURE);
}
return cpu;
}
@@ -78,8 +78,9 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
oc = cpu_class_by_name(typename, model_pieces[0]);
if (oc == NULL) {
+ error_report("unable to find CPU model '%s'", model_pieces[0]);
g_strfreev(model_pieces);
- return NULL;
+ exit(EXIT_FAILURE);
}
cpu_type = object_class_get_name(oc);
@@ -88,7 +89,7 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
g_strfreev(model_pieces);
if (err != NULL) {
error_report_err(err);
- return NULL;
+ exit(EXIT_FAILURE);
}
return cpu_type;
}
@@ -100,10 +101,8 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
*/
const char *cpu_type = cpu_parse_features(typename, cpu_model);
- if (cpu_type) {
- return cpu_create(cpu_type);
- }
- return NULL;
+ assert(cpu_type);
+ return cpu_create(cpu_type);
}
bool cpu_paging_enabled(const CPUState *cpu)
--
2.7.4
^ permalink raw reply related [flat|nested] 37+ messages in thread
* [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model()
2017-09-04 14:00 [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm) Igor Mammedov
2017-09-04 14:00 ` [Qemu-devel] [PATCH 1/6] qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts Igor Mammedov
2017-09-04 14:00 ` [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error Igor Mammedov
@ 2017-09-04 14:00 ` Igor Mammedov
2017-09-04 15:03 ` Philippe Mathieu-Daudé
2017-09-04 14:01 ` [Qemu-devel] [PATCH 4/6] vl.c: convert cpu_model to cpu type and set of global properties before machine_init() Igor Mammedov
` (2 subsequent siblings)
5 siblings, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 14:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Eduardo Habkost, Andrew Jones, Richard Henderson
function not just parses features but also converts CPU model
name to CPU type, rename it to reflect what it actualy does.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
include/qom/cpu.h | 4 ++--
qom/cpu.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 392ae75..a718daf 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -643,7 +643,7 @@ ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
CPUState *cpu_create(const char *typename);
/**
- * cpu_parse_features:
+ * cpu_parse_cpu_model:
* @typename: The CPU base type or CPU type.
* @cpu_model: The model string including optional parameters.
*
@@ -652,7 +652,7 @@ CPUState *cpu_create(const char *typename);
* Returns: type of CPU to create or prints error and terminates process
* if an error occurred.
*/
-const char *cpu_parse_features(const char *typename, const char *cpu_model);
+const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model);
/**
* cpu_generic_init:
diff --git a/qom/cpu.c b/qom/cpu.c
index 307d638..199ad57 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -66,7 +66,7 @@ CPUState *cpu_create(const char *typename)
return cpu;
}
-const char *cpu_parse_features(const char *typename, const char *cpu_model)
+const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model)
{
ObjectClass *oc;
CPUClass *cc;
@@ -99,7 +99,7 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
/* TODO: all callers of cpu_generic_init() need to be converted to
* call cpu_parse_features() only once, before calling cpu_generic_init().
*/
- const char *cpu_type = cpu_parse_features(typename, cpu_model);
+ const char *cpu_type = cpu_parse_cpu_model(typename, cpu_model);
assert(cpu_type);
return cpu_create(cpu_type);
--
2.7.4
^ permalink raw reply related [flat|nested] 37+ messages in thread
* [Qemu-devel] [PATCH 4/6] vl.c: convert cpu_model to cpu type and set of global properties before machine_init()
2017-09-04 14:00 [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm) Igor Mammedov
` (2 preceding siblings ...)
2017-09-04 14:00 ` [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model() Igor Mammedov
@ 2017-09-04 14:01 ` Igor Mammedov
2017-09-04 14:01 ` [Qemu-devel] [PATCH 5/6] pc: use generic cpu_model parsing Igor Mammedov
2017-09-04 14:01 ` [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly Igor Mammedov
5 siblings, 0 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 14:01 UTC (permalink / raw)
To: qemu-devel
Cc: Eduardo Habkost, Andrew Jones, Richard Henderson,
Marcel Apfelbaum, Paolo Bonzini
All machines that support user specified cpu_model either call
cpu_generic_init() or cpu_class_by_name()/CPUClass::parse_features
to parse feature string and to get CPU type to create.
Which leads to code duplication and hard-codding default CPU model
within machine_foo_init() code. Which makes it impossible to
get CPU type before machine_init() is run.
So instead of setting default CPUs models and doing parsing in
target specific machine_foo_init() in various ways, provide
a generic data driven cpu_model parsing before machine_init()
is called.
in follow up per target patches, it will allow to:
* define default CPU type in consistent/generic manner
per machine type and drop custom code that fallbacks
to default if cpu_model is NULL
* drop custom features parsing in targets and do it
in centralized way.
* for cases of
cpu_generic_init(TYPE_BASE/DEFAULT_CPU, "some_cpu")
replace it with
cpu_create(machine->cpu_type) || cpu_create(TYPE_FOO)
depending if CPU type is user settable or not.
not doing useless parsing and clearly documenting where
CPU model is user settable or fixed one.
Patch allows machine subclasses to define default CPU type
per machine class at class_init() time and if that is set
generic code will parse cpu_model into a MachineState::cpu_type
which will be used to create CPUs for that machine instance
and allows gradual per board conversion.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
Target specific changes will split into separate per target/machine
patches to make changes reviewable.
CC: Marcel Apfelbaum <marcel@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Eduardo Habkost <ehabkost@redhat.com>
---
include/hw/boards.h | 6 ++++++
vl.c | 10 ++++++++++
2 files changed, 16 insertions(+)
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 3363dd1..b8f255a 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -131,6 +131,10 @@ typedef struct {
* size than the target architecture's minimum. (Attempting to create
* such a CPU will fail.) Note that changing this is a migration
* compatibility break for the machine.
+ * @default_cpu_type:
+ * specifies default CPU_TYPE, which will be used for parsing target
+ * specific features and for creating CPUs if CPU name wasn't provided
+ * explicitly at CLI
*/
struct MachineClass {
/*< private >*/
@@ -167,6 +171,7 @@ struct MachineClass {
GArray *compat_props;
const char *hw_version;
ram_addr_t default_ram_size;
+ const char *default_cpu_type;
bool option_rom_has_mr;
bool rom_file_has_mr;
int minimum_page_bits;
@@ -220,6 +225,7 @@ struct MachineState {
char *kernel_cmdline;
char *initrd_filename;
const char *cpu_model;
+ const char *cpu_type;
AccelState *accelerator;
CPUArchIdList *possible_cpus;
};
diff --git a/vl.c b/vl.c
index 8e247cc..9ae6001 100644
--- a/vl.c
+++ b/vl.c
@@ -4630,6 +4630,16 @@ int main(int argc, char **argv, char **envp)
current_machine->boot_order = boot_order;
current_machine->cpu_model = cpu_model;
+
+ /* parse features once if machine provides default cpu_type */
+ if (machine_class->default_cpu_type) {
+ current_machine->cpu_type = machine_class->default_cpu_type;
+ if (cpu_model) {
+ current_machine->cpu_type =
+ cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
+ }
+ }
+
machine_run_board_init(current_machine);
realtime_init();
--
2.7.4
^ permalink raw reply related [flat|nested] 37+ messages in thread
* [Qemu-devel] [PATCH 5/6] pc: use generic cpu_model parsing
2017-09-04 14:00 [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm) Igor Mammedov
` (3 preceding siblings ...)
2017-09-04 14:01 ` [Qemu-devel] [PATCH 4/6] vl.c: convert cpu_model to cpu type and set of global properties before machine_init() Igor Mammedov
@ 2017-09-04 14:01 ` Igor Mammedov
2017-09-04 15:33 ` Philippe Mathieu-Daudé
2017-09-04 14:01 ` [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly Igor Mammedov
5 siblings, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 14:01 UTC (permalink / raw)
To: qemu-devel; +Cc: Eduardo Habkost, Andrew Jones, Richard Henderson
define default CPU type in generic way in pc_machine_class_init()
and let common machine code to handle cpu_model parsing
Patch also introduces TARGET_DEFAULT_CPU_TYPE define for 2 purposes:
* make foo_machine_class_init() look uniform on every target
* use define in [bsd|linux]-user targets to pick default
cpu type
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
target/i386/cpu.h | 9 +++++++++
hw/i386/pc.c | 41 +++++------------------------------------
hw/i386/pc_piix.c | 4 +---
target/i386/cpu.c | 3 ---
4 files changed, 15 insertions(+), 42 deletions(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 525d35d..4035a11 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1508,6 +1508,15 @@ uint64_t cpu_get_tsc(CPUX86State *env);
#define cpu_init(cpu_model) cpu_generic_init(TYPE_X86_CPU, cpu_model)
+#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
+#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
+
+#ifdef TARGET_X86_64
+#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu64")
+#else
+#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu32")
+#endif
+
#define cpu_signal_handler cpu_x86_signal_handler
#define cpu_list x86_cpu_list
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 2108104..2247ac0 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1107,7 +1107,6 @@ static void pc_new_cpu(const char *typename, int64_t apic_id, Error **errp)
void pc_hot_add_cpu(const int64_t id, Error **errp)
{
- ObjectClass *oc;
MachineState *ms = MACHINE(qdev_get_machine());
int64_t apic_id = x86_cpu_apic_id_from_index(id);
Error *local_err = NULL;
@@ -1124,9 +1123,7 @@ void pc_hot_add_cpu(const int64_t id, Error **errp)
return;
}
- assert(ms->possible_cpus->cpus[0].cpu); /* BSP is always present */
- oc = OBJECT_CLASS(CPU_GET_CLASS(ms->possible_cpus->cpus[0].cpu));
- pc_new_cpu(object_class_get_name(oc), apic_id, &local_err);
+ pc_new_cpu(ms->cpu_type, apic_id, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -1136,39 +1133,10 @@ void pc_hot_add_cpu(const int64_t id, Error **errp)
void pc_cpus_init(PCMachineState *pcms)
{
int i;
- CPUClass *cc;
- ObjectClass *oc;
- const char *typename;
- gchar **model_pieces;
const CPUArchIdList *possible_cpus;
- MachineState *machine = MACHINE(pcms);
+ MachineState *ms = MACHINE(pcms);
MachineClass *mc = MACHINE_GET_CLASS(pcms);
- /* init CPUs */
- if (machine->cpu_model == NULL) {
-#ifdef TARGET_X86_64
- machine->cpu_model = "qemu64";
-#else
- machine->cpu_model = "qemu32";
-#endif
- }
-
- model_pieces = g_strsplit(machine->cpu_model, ",", 2);
- if (!model_pieces[0]) {
- error_report("Invalid/empty CPU model name");
- exit(1);
- }
-
- oc = cpu_class_by_name(TYPE_X86_CPU, model_pieces[0]);
- if (oc == NULL) {
- error_report("Unable to find CPU definition: %s", model_pieces[0]);
- exit(1);
- }
- typename = object_class_get_name(oc);
- cc = CPU_CLASS(oc);
- cc->parse_features(typename, model_pieces[1], &error_fatal);
- g_strfreev(model_pieces);
-
/* Calculates the limit to CPU APIC ID values
*
* Limit for the APIC ID value, so that all
@@ -1177,9 +1145,9 @@ void pc_cpus_init(PCMachineState *pcms)
* This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
*/
pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
- possible_cpus = mc->possible_cpu_arch_ids(machine);
+ possible_cpus = mc->possible_cpu_arch_ids(ms);
for (i = 0; i < smp_cpus; i++) {
- pc_new_cpu(typename, possible_cpus->cpus[i].arch_id, &error_fatal);
+ pc_new_cpu(ms->cpu_type, possible_cpus->cpus[i].arch_id, &error_fatal);
}
}
@@ -2360,6 +2328,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
hc->unplug_request = pc_machine_device_unplug_request_cb;
hc->unplug = pc_machine_device_unplug_cb;
nc->nmi_monitor_handler = x86_nmi;
+ mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
object_class_property_add(oc, PC_MACHINE_MEMHP_REGION_SIZE, "int",
pc_machine_get_hotplug_memory_region_size, NULL,
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 46dfd2c..a3f4e2a 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -378,9 +378,6 @@ static void pc_compat_0_13(MachineState *machine)
static void pc_init_isa(MachineState *machine)
{
- if (!machine->cpu_model) {
- machine->cpu_model = "486";
- }
x86_cpu_change_kvm_default("kvm-pv-eoi", NULL);
enable_compat_apic_id_mode();
pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE);
@@ -1104,6 +1101,7 @@ static void isapc_machine_options(MachineClass *m)
pcmc->gigabyte_align = false;
pcmc->smbios_legacy_mode = true;
pcmc->has_reserved_memory = false;
+ m->default_cpu_type = X86_CPU_TYPE_NAME("486");
}
DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index f81576d..a91b2b6 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -705,9 +705,6 @@ void host_vendor_fms(char *vendor, int *family, int *model, int *stepping)
/* CPU class name definitions: */
-#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
-#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
-
/* Return type name for a given CPU model name
* Caller is responsible for freeing the returned string.
*/
--
2.7.4
^ permalink raw reply related [flat|nested] 37+ messages in thread
* [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-04 14:00 [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm) Igor Mammedov
` (4 preceding siblings ...)
2017-09-04 14:01 ` [Qemu-devel] [PATCH 5/6] pc: use generic cpu_model parsing Igor Mammedov
@ 2017-09-04 14:01 ` Igor Mammedov
2017-09-05 21:31 ` Eduardo Habkost
5 siblings, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 14:01 UTC (permalink / raw)
To: qemu-devel
Cc: Eduardo Habkost, Andrew Jones, Richard Henderson, Peter Maydell,
Igor Mitsyanko, Rob Herring, Andrzej Zaborowski, Jan Kiszka,
Alistair Francis, Edgar E. Iglesias, qemu-arm
there are 2 use cases to deal with:
1: fixed CPU models per board/soc
2: boards with user configurable cpu_model and fallback to
default cpu_model if user hasn't specified one explicitly
For the 1st
drop intermediate cpu_model parsing and use const cpu type
directly, which replaces:
typename = object_class_get_name(
cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
object_new(typename)
with
object_new(FOO_CPU_TYPE_NAME)
or
cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
with
cpu_create(FOO_CPU_TYPE_NAME)
as result 1st use case doesn't have to invoke not necessary
translation and not needed code is removed.
For the 2nd
1: set default cpu type with MachineClass::default_cpu_type and
2: use generic cpu_model parsing that done before machine_init()
is run and:
2.1: drop custom cpu_model parsing where pattern is:
typename = object_class_get_name(
cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
[parse_features(typename, cpu_model, &err) ]
2.2: or replace cpu_generic_init() which does what
2.1 does + create_cpu(typename) with just
create_cpu(machine->cpu_type)
as result cpu_name -> cpu_type translation is done using
generic machine code one including parsing optional features
if supported/present (removes a bunch of duplicated cpu_model
parsing code) and default cpu type is defined in an uniform way
within machine_class_init callbacks instead of adhoc places
in boadr's machine_init code.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Igor Mitsyanko <i.mitsyanko@gmail.com>
CC: Rob Herring <robh@kernel.org>
CC: Andrzej Zaborowski <balrogg@gmail.com>
CC: Jan Kiszka <jan.kiszka@web.de>
CC: Alistair Francis <alistair@alistair23.me>
CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
CC: qemu-arm@nongnu.org
---
include/hw/arm/armv7m.h | 2 +-
include/hw/arm/aspeed_soc.h | 2 +-
include/hw/arm/stm32f205_soc.h | 2 +-
target/arm/cpu.h | 3 +++
hw/arm/armv7m.c | 40 +++++-------------------------------
hw/arm/aspeed_soc.c | 13 +++++-------
hw/arm/collie.c | 10 +++------
hw/arm/exynos4210.c | 6 +-----
hw/arm/gumstix.c | 5 +++--
hw/arm/highbank.c | 10 ++++-----
hw/arm/integratorcp.c | 30 ++-------------------------
hw/arm/mainstone.c | 9 ++++-----
hw/arm/mps2.c | 17 +++++++---------
hw/arm/musicpal.c | 7 ++-----
hw/arm/netduino2.c | 2 +-
hw/arm/nseries.c | 4 +++-
hw/arm/omap1.c | 7 ++-----
hw/arm/omap2.c | 4 ++--
hw/arm/omap_sx1.c | 5 ++++-
hw/arm/palm.c | 5 +++--
hw/arm/pxa2xx.c | 10 ++++-----
hw/arm/realview.c | 25 +++++------------------
hw/arm/spitz.c | 12 ++++++-----
hw/arm/stellaris.c | 16 +++++++--------
hw/arm/stm32f205_soc.c | 4 ++--
hw/arm/strongarm.c | 10 +++------
hw/arm/tosa.c | 4 ----
hw/arm/versatilepb.c | 15 +++-----------
hw/arm/vexpress.c | 32 +++++++++--------------------
hw/arm/virt.c | 46 +++++++++---------------------------------
hw/arm/xilinx_zynq.c | 10 ++-------
hw/arm/z2.c | 9 +++------
target/arm/cpu.c | 2 +-
33 files changed, 114 insertions(+), 264 deletions(-)
diff --git a/include/hw/arm/armv7m.h b/include/hw/arm/armv7m.h
index a9b3f2a..8496743 100644
--- a/include/hw/arm/armv7m.h
+++ b/include/hw/arm/armv7m.h
@@ -55,7 +55,7 @@ typedef struct ARMv7MState {
MemoryRegion container;
/* Properties */
- char *cpu_model;
+ char *cpu_type;
/* MemoryRegion the board provides to us (with its devices, RAM, etc) */
MemoryRegion *board_memory;
} ARMv7MState;
diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
index 0b88baa..f26914a 100644
--- a/include/hw/arm/aspeed_soc.h
+++ b/include/hw/arm/aspeed_soc.h
@@ -49,7 +49,7 @@ typedef struct AspeedSoCState {
typedef struct AspeedSoCInfo {
const char *name;
- const char *cpu_model;
+ const char *cpu_type;
uint32_t silicon_rev;
hwaddr sdram_base;
uint64_t sram_size;
diff --git a/include/hw/arm/stm32f205_soc.h b/include/hw/arm/stm32f205_soc.h
index e2dce11..922a733 100644
--- a/include/hw/arm/stm32f205_soc.h
+++ b/include/hw/arm/stm32f205_soc.h
@@ -52,7 +52,7 @@ typedef struct STM32F205State {
SysBusDevice parent_obj;
/*< public >*/
- char *cpu_model;
+ char *cpu_type;
ARMv7MState armv7m;
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 5932ef1..3e1ba19 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -2002,6 +2002,9 @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx,
#define cpu_init(cpu_model) cpu_generic_init(TYPE_ARM_CPU, cpu_model)
+#define ARM_CPU_TYPE_SUFFIX "-" TYPE_ARM_CPU
+#define ARM_CPU_TYPE_NAME(name) (name ARM_CPU_TYPE_SUFFIX)
+
#define cpu_signal_handler cpu_arm_signal_handler
#define cpu_list arm_cpu_list
diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c
index c8a11f2..9c45f26 100644
--- a/hw/arm/armv7m.c
+++ b/hw/arm/armv7m.c
@@ -163,10 +163,6 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
SysBusDevice *sbd;
Error *err = NULL;
int i;
- char **cpustr;
- ObjectClass *oc;
- const char *typename;
- CPUClass *cc;
if (!s->board_memory) {
error_setg(errp, "memory property was not set");
@@ -175,29 +171,7 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
memory_region_add_subregion_overlap(&s->container, 0, s->board_memory, -1);
- cpustr = g_strsplit(s->cpu_model, ",", 2);
-
- oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
- if (!oc) {
- error_setg(errp, "Unknown CPU model %s", cpustr[0]);
- g_strfreev(cpustr);
- return;
- }
-
- cc = CPU_CLASS(oc);
- typename = object_class_get_name(oc);
- cc->parse_features(typename, cpustr[1], &err);
- g_strfreev(cpustr);
- if (err) {
- error_propagate(errp, err);
- return;
- }
-
- s->cpu = ARM_CPU(object_new(typename));
- if (!s->cpu) {
- error_setg(errp, "Unknown CPU model %s", s->cpu_model);
- return;
- }
+ s->cpu = ARM_CPU(object_new(s->cpu_type));
object_property_set_link(OBJECT(s->cpu), OBJECT(&s->container), "memory",
&error_abort);
@@ -253,7 +227,7 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
}
static Property armv7m_properties[] = {
- DEFINE_PROP_STRING("cpu-model", ARMv7MState, cpu_model),
+ DEFINE_PROP_STRING("cpu-type", ARMv7MState, cpu_type),
DEFINE_PROP_END_OF_LIST(),
};
@@ -285,20 +259,16 @@ static void armv7m_reset(void *opaque)
Returns the ARMv7M device. */
DeviceState *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
- const char *kernel_filename, const char *cpu_model)
+ const char *kernel_filename, const char *cpu_type)
{
DeviceState *armv7m;
- if (cpu_model == NULL) {
- cpu_model = "cortex-m3";
- }
-
armv7m = qdev_create(NULL, "armv7m");
qdev_prop_set_uint32(armv7m, "num-irq", num_irq);
- qdev_prop_set_string(armv7m, "cpu-model", cpu_model);
+ qdev_prop_set_string(armv7m, "cpu-type", cpu_type);
object_property_set_link(OBJECT(armv7m), OBJECT(get_system_memory()),
"memory", &error_abort);
- /* This will exit with an error if the user passed us a bad cpu_model */
+ /* This will exit with an error if the user passed us a bad cpu_type */
qdev_init_nofail(armv7m);
armv7m_load_kernel(ARM_CPU(first_cpu), kernel_filename, mem_size);
diff --git a/hw/arm/aspeed_soc.c b/hw/arm/aspeed_soc.c
index 5529024..cd7bb94 100644
--- a/hw/arm/aspeed_soc.c
+++ b/hw/arm/aspeed_soc.c
@@ -54,7 +54,7 @@ static const char *aspeed_soc_ast2500_typenames[] = {
static const AspeedSoCInfo aspeed_socs[] = {
{
.name = "ast2400-a0",
- .cpu_model = "arm926",
+ .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
.silicon_rev = AST2400_A0_SILICON_REV,
.sdram_base = AST2400_SDRAM_BASE,
.sram_size = 0x8000,
@@ -65,7 +65,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
.wdts_num = 2,
}, {
.name = "ast2400-a1",
- .cpu_model = "arm926",
+ .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
.silicon_rev = AST2400_A1_SILICON_REV,
.sdram_base = AST2400_SDRAM_BASE,
.sram_size = 0x8000,
@@ -76,7 +76,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
.wdts_num = 2,
}, {
.name = "ast2400",
- .cpu_model = "arm926",
+ .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
.silicon_rev = AST2400_A0_SILICON_REV,
.sdram_base = AST2400_SDRAM_BASE,
.sram_size = 0x8000,
@@ -87,7 +87,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
.wdts_num = 2,
}, {
.name = "ast2500-a1",
- .cpu_model = "arm1176",
+ .cpu_type = ARM_CPU_TYPE_NAME("arm1176"),
.silicon_rev = AST2500_A1_SILICON_REV,
.sdram_base = AST2500_SDRAM_BASE,
.sram_size = 0x9000,
@@ -128,13 +128,10 @@ static void aspeed_soc_init(Object *obj)
{
AspeedSoCState *s = ASPEED_SOC(obj);
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
- char *cpu_typename;
int i;
- cpu_typename = g_strdup_printf("%s-" TYPE_ARM_CPU, sc->info->cpu_model);
- object_initialize(&s->cpu, sizeof(s->cpu), cpu_typename);
+ object_initialize(&s->cpu, sizeof(s->cpu), sc->info->cpu_type);
object_property_add_child(obj, "cpu", OBJECT(&s->cpu), NULL);
- g_free(cpu_typename);
object_initialize(&s->vic, sizeof(s->vic), TYPE_ASPEED_VIC);
object_property_add_child(obj, "vic", OBJECT(&s->vic), NULL);
diff --git a/hw/arm/collie.c b/hw/arm/collie.c
index 2e69531..f043cd8 100644
--- a/hw/arm/collie.c
+++ b/hw/arm/collie.c
@@ -18,7 +18,7 @@
#include "hw/block/flash.h"
#include "sysemu/block-backend.h"
#include "exec/address-spaces.h"
-#include "qom/cpu.h"
+#include "cpu.h"
static struct arm_boot_info collie_binfo = {
.loader_start = SA_SDCS0,
@@ -27,7 +27,6 @@ static struct arm_boot_info collie_binfo = {
static void collie_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
@@ -35,11 +34,7 @@ static void collie_init(MachineState *machine)
DriveInfo *dinfo;
MemoryRegion *sysmem = get_system_memory();
- if (!cpu_model) {
- cpu_model = "sa1110";
- }
-
- s = sa1110_init(sysmem, collie_binfo.ram_size, cpu_model);
+ s = sa1110_init(sysmem, collie_binfo.ram_size, machine->cpu_type);
dinfo = drive_get(IF_PFLASH, 0, 0);
pflash_cfi01_register(SA_CS0, NULL, "collie.fl1", 0x02000000,
@@ -64,6 +59,7 @@ static void collie_machine_init(MachineClass *mc)
{
mc->desc = "Sharp SL-5500 (Collie) PDA (SA-1110)";
mc->init = collie_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("sa1110");
}
DEFINE_MACHINE("collie", collie_machine_init)
diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
index f9e79f3..81f12e3 100644
--- a/hw/arm/exynos4210.c
+++ b/hw/arm/exynos4210.c
@@ -169,15 +169,11 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem)
Exynos4210State *s = g_new(Exynos4210State, 1);
qemu_irq gate_irq[EXYNOS4210_NCPUS][EXYNOS4210_IRQ_GATE_NINPUTS];
SysBusDevice *busdev;
- ObjectClass *cpu_oc;
DeviceState *dev;
int i, n;
- cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, "cortex-a9");
- assert(cpu_oc);
-
for (n = 0; n < EXYNOS4210_NCPUS; n++) {
- Object *cpuobj = object_new(object_class_get_name(cpu_oc));
+ Object *cpuobj = object_new(ARM_CPU_TYPE_NAME("cortex-a9"));
/* By default A9 CPUs have EL3 enabled. This board does not currently
* support EL3 so the CPU EL3 property is disabled before realization.
diff --git a/hw/arm/gumstix.c b/hw/arm/gumstix.c
index d59d9ba..2b66bb7 100644
--- a/hw/arm/gumstix.c
+++ b/hw/arm/gumstix.c
@@ -44,6 +44,7 @@
#include "sysemu/block-backend.h"
#include "exec/address-spaces.h"
#include "sysemu/qtest.h"
+#include "cpu.h"
static const int sector_len = 128 * 1024;
@@ -86,7 +87,6 @@ static void connex_init(MachineState *machine)
static void verdex_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
PXA2xxState *cpu;
DriveInfo *dinfo;
int be;
@@ -95,7 +95,7 @@ static void verdex_init(MachineState *machine)
uint32_t verdex_rom = 0x02000000;
uint32_t verdex_ram = 0x10000000;
- cpu = pxa270_init(address_space_mem, verdex_ram, cpu_model ?: "pxa270-c0");
+ cpu = pxa270_init(address_space_mem, verdex_ram, machine->cpu_type);
dinfo = drive_get(IF_PFLASH, 0, 0);
if (!dinfo && !qtest_enabled()) {
@@ -142,6 +142,7 @@ static void verdex_class_init(ObjectClass *oc, void *data)
mc->desc = "Gumstix Verdex (PXA270)";
mc->init = verdex_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
}
static const TypeInfo verdex_type = {
diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
index 20e60f1..0d7190a 100644
--- a/hw/arm/highbank.c
+++ b/hw/arm/highbank.c
@@ -219,7 +219,6 @@ enum cxmachines {
static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
{
ram_addr_t ram_size = machine->ram_size;
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
@@ -236,19 +235,20 @@ static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
switch (machine_id) {
case CALXEDA_HIGHBANK:
- cpu_model = "cortex-a9";
+ machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
break;
case CALXEDA_MIDWAY:
- cpu_model = "cortex-a15";
+ machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
break;
+ default:
+ assert(0);
}
for (n = 0; n < smp_cpus; n++) {
- ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
Object *cpuobj;
ARMCPU *cpu;
- cpuobj = object_new(object_class_get_name(oc));
+ cpuobj = object_new(machine->cpu_type);
cpu = ARM_CPU(cpuobj);
object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
diff --git a/hw/arm/integratorcp.c b/hw/arm/integratorcp.c
index d9530ed..44d247e 100644
--- a/hw/arm/integratorcp.c
+++ b/hw/arm/integratorcp.c
@@ -572,46 +572,19 @@ static struct arm_boot_info integrator_binfo = {
static void integratorcp_init(MachineState *machine)
{
ram_addr_t ram_size = machine->ram_size;
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
- char **cpustr;
- ObjectClass *cpu_oc;
- CPUClass *cc;
Object *cpuobj;
ARMCPU *cpu;
- const char *typename;
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *ram = g_new(MemoryRegion, 1);
MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
qemu_irq pic[32];
DeviceState *dev, *sic, *icp;
int i;
- Error *err = NULL;
- if (!cpu_model) {
- cpu_model = "arm926";
- }
-
- cpustr = g_strsplit(cpu_model, ",", 2);
-
- cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
- if (!cpu_oc) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
- typename = object_class_get_name(cpu_oc);
-
- cc = CPU_CLASS(cpu_oc);
- cc->parse_features(typename, cpustr[1], &err);
- g_strfreev(cpustr);
- if (err) {
- error_report_err(err);
- exit(1);
- }
-
- cpuobj = object_new(typename);
+ cpuobj = object_new(machine->cpu_type);
/* By default ARM1176 CPUs have EL3 enabled. This board does not
* currently support EL3 so the CPU EL3 property is disabled before
@@ -681,6 +654,7 @@ static void integratorcp_machine_init(MachineClass *mc)
{
mc->desc = "ARM Integrator/CP (ARM926EJ-S)";
mc->init = integratorcp_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
}
DEFINE_MACHINE("integratorcp", integratorcp_machine_init)
diff --git a/hw/arm/mainstone.c b/hw/arm/mainstone.c
index fb268e6..2b13d30 100644
--- a/hw/arm/mainstone.c
+++ b/hw/arm/mainstone.c
@@ -24,6 +24,7 @@
#include "hw/sysbus.h"
#include "exec/address-spaces.h"
#include "sysemu/qtest.h"
+#include "cpu.h"
/* Device addresses */
#define MST_FPGA_PHYS 0x08000000
@@ -121,13 +122,10 @@ static void mainstone_common_init(MemoryRegion *address_space_mem,
int i;
int be;
MemoryRegion *rom = g_new(MemoryRegion, 1);
- const char *cpu_model = machine->cpu_model;
-
- if (!cpu_model)
- cpu_model = "pxa270-c5";
/* Setup CPU & memory */
- mpu = pxa270_init(address_space_mem, mainstone_binfo.ram_size, cpu_model);
+ mpu = pxa270_init(address_space_mem, mainstone_binfo.ram_size,
+ machine->cpu_type);
memory_region_init_ram(rom, NULL, "mainstone.rom", MAINSTONE_ROM,
&error_fatal);
memory_region_set_readonly(rom, true);
@@ -196,6 +194,7 @@ static void mainstone2_machine_init(MachineClass *mc)
{
mc->desc = "Mainstone II (PXA27x)";
mc->init = mainstone_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
}
DEFINE_MACHINE("mainstone", mainstone2_machine_init)
diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
index abb0ab6..aeaad80 100644
--- a/hw/arm/mps2.c
+++ b/hw/arm/mps2.c
@@ -46,7 +46,6 @@ typedef enum MPS2FPGAType {
typedef struct {
MachineClass parent;
MPS2FPGAType fpga_type;
- const char *cpu_model;
uint32_t scc_id;
} MPS2MachineClass;
@@ -107,14 +106,12 @@ static void mps2_common_init(MachineState *machine)
MPS2MachineState *mms = MPS2_MACHINE(machine);
MPS2MachineClass *mmc = MPS2_MACHINE_GET_CLASS(machine);
MemoryRegion *system_memory = get_system_memory();
+ MachineClass *mc = MACHINE_GET_CLASS(machine);
DeviceState *armv7m, *sccdev;
- if (!machine->cpu_model) {
- machine->cpu_model = mmc->cpu_model;
- }
-
- if (strcmp(machine->cpu_model, mmc->cpu_model) != 0) {
- error_report("This board can only be used with CPU %s", mmc->cpu_model);
+ if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
+ error_report("This board can only be used with CPU %s",
+ mc->default_cpu_type);
exit(1);
}
@@ -188,7 +185,7 @@ static void mps2_common_init(MachineState *machine)
default:
g_assert_not_reached();
}
- qdev_prop_set_string(armv7m, "cpu-model", machine->cpu_model);
+ qdev_prop_set_string(armv7m, "cpu-type", machine->cpu_type);
object_property_set_link(OBJECT(&mms->armv7m), OBJECT(system_memory),
"memory", &error_abort);
object_property_set_bool(OBJECT(&mms->armv7m), true, "realized",
@@ -339,7 +336,7 @@ static void mps2_an385_class_init(ObjectClass *oc, void *data)
mc->desc = "ARM MPS2 with AN385 FPGA image for Cortex-M3";
mmc->fpga_type = FPGA_AN385;
- mmc->cpu_model = "cortex-m3";
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
mmc->scc_id = 0x41040000 | (385 << 4);
}
@@ -350,7 +347,7 @@ static void mps2_an511_class_init(ObjectClass *oc, void *data)
mc->desc = "ARM MPS2 with AN511 DesignStart FPGA image for Cortex-M3";
mmc->fpga_type = FPGA_AN511;
- mmc->cpu_model = "cortex-m3";
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
mmc->scc_id = 0x4104000 | (511 << 4);
}
diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
index 64c8e09..9b2000d 100644
--- a/hw/arm/musicpal.c
+++ b/hw/arm/musicpal.c
@@ -1570,7 +1570,6 @@ static struct arm_boot_info musicpal_binfo = {
static void musicpal_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
@@ -1590,10 +1589,7 @@ static void musicpal_init(MachineState *machine)
MemoryRegion *ram = g_new(MemoryRegion, 1);
MemoryRegion *sram = g_new(MemoryRegion, 1);
- if (!cpu_model) {
- cpu_model = "arm926";
- }
- cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, cpu_model));
+ cpu = ARM_CPU(cpu_create(machine->cpu_type));
/* For now we use a fixed - the original - RAM size */
memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",
@@ -1714,6 +1710,7 @@ static void musicpal_machine_init(MachineClass *mc)
{
mc->desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)";
mc->init = musicpal_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
}
DEFINE_MACHINE("musicpal", musicpal_machine_init)
diff --git a/hw/arm/netduino2.c b/hw/arm/netduino2.c
index 3cfe332..4790824 100644
--- a/hw/arm/netduino2.c
+++ b/hw/arm/netduino2.c
@@ -34,7 +34,7 @@ static void netduino2_init(MachineState *machine)
DeviceState *dev;
dev = qdev_create(NULL, TYPE_STM32F205_SOC);
- qdev_prop_set_string(dev, "cpu-model", "cortex-m3");
+ qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m3"));
object_property_set_bool(OBJECT(dev), true, "realized", &error_fatal);
armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
index 503a3b6..b41850e 100644
--- a/hw/arm/nseries.c
+++ b/hw/arm/nseries.c
@@ -1310,7 +1310,7 @@ static void n8x0_init(MachineState *machine,
struct n800_s *s = (struct n800_s *) g_malloc0(sizeof(*s));
int sdram_size = binfo->ram_size;
- s->mpu = omap2420_mpu_init(sysmem, sdram_size, machine->cpu_model);
+ s->mpu = omap2420_mpu_init(sysmem, sdram_size, machine->cpu_type);
/* Setup peripherals
*
@@ -1425,6 +1425,7 @@ static void n800_class_init(ObjectClass *oc, void *data)
mc->desc = "Nokia N800 tablet aka. RX-34 (OMAP2420)";
mc->init = n800_init;
mc->default_boot_order = "";
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2");
}
static const TypeInfo n800_type = {
@@ -1440,6 +1441,7 @@ static void n810_class_init(ObjectClass *oc, void *data)
mc->desc = "Nokia N810 tablet aka. RX-44 (OMAP2420)";
mc->init = n810_init;
mc->default_boot_order = "";
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2");
}
static const TypeInfo n810_type = {
diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
index 04e65ce..b3e7625 100644
--- a/hw/arm/omap1.c
+++ b/hw/arm/omap1.c
@@ -3850,7 +3850,7 @@ static int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s,
struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
unsigned long sdram_size,
- const char *core)
+ const char *cpu_type)
{
int i;
struct omap_mpu_state_s *s = g_new0(struct omap_mpu_state_s, 1);
@@ -3858,12 +3858,9 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
DriveInfo *dinfo;
SysBusDevice *busdev;
- if (!core)
- core = "ti925t";
-
/* Core */
s->mpu_model = omap310;
- s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core));
+ s->cpu = ARM_CPU(cpu_create(cpu_type));
s->sdram_size = sdram_size;
s->sram_size = OMAP15XX_SRAM_SIZE;
diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
index 5821477..3f6076e 100644
--- a/hw/arm/omap2.c
+++ b/hw/arm/omap2.c
@@ -2250,7 +2250,7 @@ static const struct dma_irq_map omap2_dma_irq_map[] = {
struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
unsigned long sdram_size,
- const char *core)
+ const char *cpu_type)
{
struct omap_mpu_state_s *s = g_new0(struct omap_mpu_state_s, 1);
qemu_irq dma_irqs[4];
@@ -2261,7 +2261,7 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
/* Core */
s->mpu_model = omap2420;
- s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core ?: "arm1136-r2"));
+ s->cpu = ARM_CPU(cpu_create(cpu_type));
s->sdram_size = sdram_size;
s->sram_size = OMAP242X_SRAM_SIZE;
diff --git a/hw/arm/omap_sx1.c b/hw/arm/omap_sx1.c
index 9809106..1236ec1 100644
--- a/hw/arm/omap_sx1.c
+++ b/hw/arm/omap_sx1.c
@@ -36,6 +36,7 @@
#include "sysemu/block-backend.h"
#include "sysemu/qtest.h"
#include "exec/address-spaces.h"
+#include "cpu.h"
/*****************************************************************************/
/* Siemens SX1 Cellphone V1 */
@@ -120,7 +121,7 @@ static void sx1_init(MachineState *machine, const int version)
}
mpu = omap310_mpu_init(address_space, sx1_binfo.ram_size,
- machine->cpu_model);
+ machine->cpu_type);
/* External Flash (EMIFS) */
memory_region_init_ram(flash, NULL, "omap_sx1.flash0-0", flash_size,
@@ -223,6 +224,7 @@ static void sx1_machine_v2_class_init(ObjectClass *oc, void *data)
mc->desc = "Siemens SX1 (OMAP310) V2";
mc->init = sx1_init_v2;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
}
static const TypeInfo sx1_machine_v2_type = {
@@ -237,6 +239,7 @@ static void sx1_machine_v1_class_init(ObjectClass *oc, void *data)
mc->desc = "Siemens SX1 (OMAP310) V1";
mc->init = sx1_init_v1;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
}
static const TypeInfo sx1_machine_v1_type = {
diff --git a/hw/arm/palm.c b/hw/arm/palm.c
index 64cf8ca..862f048 100644
--- a/hw/arm/palm.c
+++ b/hw/arm/palm.c
@@ -29,6 +29,7 @@
#include "hw/devices.h"
#include "hw/loader.h"
#include "exec/address-spaces.h"
+#include "cpu.h"
static uint32_t static_readb(void *opaque, hwaddr offset)
{
@@ -195,7 +196,6 @@ static struct arm_boot_info palmte_binfo = {
static void palmte_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
@@ -211,7 +211,7 @@ static void palmte_init(MachineState *machine)
MemoryRegion *flash = g_new(MemoryRegion, 1);
MemoryRegion *cs = g_new(MemoryRegion, 4);
- mpu = omap310_mpu_init(address_space_mem, sdram_size, cpu_model);
+ mpu = omap310_mpu_init(address_space_mem, sdram_size, machine->cpu_type);
/* External Flash (EMIFS) */
memory_region_init_ram(flash, NULL, "palmte.flash", flash_size,
@@ -274,6 +274,7 @@ static void palmte_machine_init(MachineClass *mc)
{
mc->desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)";
mc->init = palmte_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
}
DEFINE_MACHINE("cheetah", palmte_machine_init)
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index c16657d..79b317a 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -2052,21 +2052,19 @@ static void pxa2xx_reset(void *opaque, int line, int level)
/* Initialise a PXA270 integrated chip (ARM based core). */
PXA2xxState *pxa270_init(MemoryRegion *address_space,
- unsigned int sdram_size, const char *revision)
+ unsigned int sdram_size, const char *cpu_type)
{
PXA2xxState *s;
int i;
DriveInfo *dinfo;
s = g_new0(PXA2xxState, 1);
- if (revision && strncmp(revision, "pxa27", 5)) {
+ if (strncmp(cpu_type, ARM_CPU_TYPE_NAME("pxa27"), 5)) {
fprintf(stderr, "Machine requires a PXA27x processor.\n");
exit(1);
}
- if (!revision)
- revision = "pxa270";
- s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, revision));
+ s->cpu = ARM_CPU(cpu_create(cpu_type));
s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
/* SDRAM & Internal Memory Storage */
@@ -2192,7 +2190,7 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
s = g_new0(PXA2xxState, 1);
- s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, "pxa255"));
+ s->cpu = ARM_CPU(cpu_create(ARM_CPU_TYPE_NAME("pxa255")));
s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
/* SDRAM & Internal Memory Storage */
diff --git a/hw/arm/realview.c b/hw/arm/realview.c
index 76ff557..38e3278 100644
--- a/hw/arm/realview.c
+++ b/hw/arm/realview.c
@@ -55,7 +55,6 @@ static void realview_init(MachineState *machine,
{
ARMCPU *cpu = NULL;
CPUARMState *env;
- ObjectClass *cpu_oc;
MemoryRegion *sysmem = get_system_memory();
MemoryRegion *ram_lo;
MemoryRegion *ram_hi = g_new(MemoryRegion, 1);
@@ -96,14 +95,8 @@ static void realview_init(MachineState *machine,
break;
}
- cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, machine->cpu_model);
- if (!cpu_oc) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
-
for (n = 0; n < smp_cpus; n++) {
- Object *cpuobj = object_new(object_class_get_name(cpu_oc));
+ Object *cpuobj = object_new(machine->cpu_type);
/* By default A9,A15 and ARM1176 CPUs have EL3 enabled. This board
* does not currently support EL3 so the CPU EL3 property is disabled
@@ -359,33 +352,21 @@ static void realview_init(MachineState *machine,
static void realview_eb_init(MachineState *machine)
{
- if (!machine->cpu_model) {
- machine->cpu_model = "arm926";
- }
realview_init(machine, BOARD_EB);
}
static void realview_eb_mpcore_init(MachineState *machine)
{
- if (!machine->cpu_model) {
- machine->cpu_model = "arm11mpcore";
- }
realview_init(machine, BOARD_EB_MPCORE);
}
static void realview_pb_a8_init(MachineState *machine)
{
- if (!machine->cpu_model) {
- machine->cpu_model = "cortex-a8";
- }
realview_init(machine, BOARD_PB_A8);
}
static void realview_pbx_a9_init(MachineState *machine)
{
- if (!machine->cpu_model) {
- machine->cpu_model = "cortex-a9";
- }
realview_init(machine, BOARD_PBX_A9);
}
@@ -396,6 +377,7 @@ static void realview_eb_class_init(ObjectClass *oc, void *data)
mc->desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)";
mc->init = realview_eb_init;
mc->block_default_type = IF_SCSI;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
}
static const TypeInfo realview_eb_type = {
@@ -412,6 +394,7 @@ static void realview_eb_mpcore_class_init(ObjectClass *oc, void *data)
mc->init = realview_eb_mpcore_init;
mc->block_default_type = IF_SCSI;
mc->max_cpus = 4;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm11mpcore");
}
static const TypeInfo realview_eb_mpcore_type = {
@@ -426,6 +409,7 @@ static void realview_pb_a8_class_init(ObjectClass *oc, void *data)
mc->desc = "ARM RealView Platform Baseboard for Cortex-A8";
mc->init = realview_pb_a8_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8");
}
static const TypeInfo realview_pb_a8_type = {
@@ -441,6 +425,7 @@ static void realview_pbx_a9_class_init(ObjectClass *oc, void *data)
mc->desc = "ARM RealView Platform Baseboard Explore for Cortex-A9";
mc->init = realview_pbx_a9_init;
mc->max_cpus = 4;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
}
static const TypeInfo realview_pbx_a9_type = {
diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
index 7f588ce..b6ddb7c 100644
--- a/hw/arm/spitz.c
+++ b/hw/arm/spitz.c
@@ -30,6 +30,7 @@
#include "hw/sysbus.h"
#include "exec/address-spaces.h"
#include "sysemu/sysemu.h"
+#include "cpu.h"
#undef REG_FMT
#define REG_FMT "0x%02lx"
@@ -909,13 +910,10 @@ static void spitz_common_init(MachineState *machine,
DeviceState *scp0, *scp1 = NULL;
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *rom = g_new(MemoryRegion, 1);
- const char *cpu_model = machine->cpu_model;
-
- if (!cpu_model)
- cpu_model = (model == terrier) ? "pxa270-c5" : "pxa270-c0";
/* Setup CPU & memory */
- mpu = pxa270_init(address_space_mem, spitz_binfo.ram_size, cpu_model);
+ mpu = pxa270_init(address_space_mem, spitz_binfo.ram_size,
+ machine->cpu_type);
sl_flash_register(mpu, (model == spitz) ? FLASH_128M : FLASH_1024M);
@@ -983,6 +981,7 @@ static void akitapda_class_init(ObjectClass *oc, void *data)
mc->desc = "Sharp SL-C1000 (Akita) PDA (PXA270)";
mc->init = akita_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
}
static const TypeInfo akitapda_type = {
@@ -998,6 +997,7 @@ static void spitzpda_class_init(ObjectClass *oc, void *data)
mc->desc = "Sharp SL-C3000 (Spitz) PDA (PXA270)";
mc->init = spitz_init;
mc->block_default_type = IF_IDE;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
}
static const TypeInfo spitzpda_type = {
@@ -1013,6 +1013,7 @@ static void borzoipda_class_init(ObjectClass *oc, void *data)
mc->desc = "Sharp SL-C3100 (Borzoi) PDA (PXA270)";
mc->init = borzoi_init;
mc->block_default_type = IF_IDE;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
}
static const TypeInfo borzoipda_type = {
@@ -1028,6 +1029,7 @@ static void terrierpda_class_init(ObjectClass *oc, void *data)
mc->desc = "Sharp SL-C3200 (Terrier) PDA (PXA270)";
mc->init = terrier_init;
mc->block_default_type = IF_IDE;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
}
static const TypeInfo terrierpda_type = {
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
index 408c1a1..c8fa9da 100644
--- a/hw/arm/stellaris.c
+++ b/hw/arm/stellaris.c
@@ -22,6 +22,7 @@
#include "sysemu/sysemu.h"
#include "hw/char/pl011.h"
#include "hw/misc/unimp.h"
+#include "cpu.h"
#define GPIO_A 0
#define GPIO_B 1
@@ -1225,8 +1226,7 @@ static stellaris_board_info stellaris_boards[] = {
}
};
-static void stellaris_init(const char *kernel_filename, const char *cpu_model,
- stellaris_board_info *board)
+static void stellaris_init(MachineState *ms, stellaris_board_info *board)
{
static const int uart_irq[] = {5, 6, 33, 34};
static const int timer_irq[] = {19, 21, 23, 35};
@@ -1298,7 +1298,7 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
memory_region_add_subregion(system_memory, 0x20000000, sram);
nvic = armv7m_init(system_memory, flash_size, NUM_IRQ_LINES,
- kernel_filename, cpu_model);
+ ms->kernel_filename, ms->cpu_type);
qdev_connect_gpio_out_named(nvic, "SYSRESETREQ", 0,
qemu_allocate_irq(&do_sys_reset, NULL, 0));
@@ -1435,16 +1435,12 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
/* FIXME: Figure out how to generate these from stellaris_boards. */
static void lm3s811evb_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
- const char *kernel_filename = machine->kernel_filename;
- stellaris_init(kernel_filename, cpu_model, &stellaris_boards[0]);
+ stellaris_init(machine, &stellaris_boards[0]);
}
static void lm3s6965evb_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
- const char *kernel_filename = machine->kernel_filename;
- stellaris_init(kernel_filename, cpu_model, &stellaris_boards[1]);
+ stellaris_init(machine, &stellaris_boards[1]);
}
static void lm3s811evb_class_init(ObjectClass *oc, void *data)
@@ -1453,6 +1449,7 @@ static void lm3s811evb_class_init(ObjectClass *oc, void *data)
mc->desc = "Stellaris LM3S811EVB";
mc->init = lm3s811evb_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
}
static const TypeInfo lm3s811evb_type = {
@@ -1467,6 +1464,7 @@ static void lm3s6965evb_class_init(ObjectClass *oc, void *data)
mc->desc = "Stellaris LM3S6965EVB";
mc->init = lm3s6965evb_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
}
static const TypeInfo lm3s6965evb_type = {
diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
index f61e735..1cd6374 100644
--- a/hw/arm/stm32f205_soc.c
+++ b/hw/arm/stm32f205_soc.c
@@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
armv7m = DEVICE(&s->armv7m);
qdev_prop_set_uint32(armv7m, "num-irq", 96);
- qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
+ qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
"memory", &error_abort);
object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
@@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
}
static Property stm32f205_soc_properties[] = {
- DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
+ DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
index c1145dd..3d1a231 100644
--- a/hw/arm/strongarm.c
+++ b/hw/arm/strongarm.c
@@ -1581,23 +1581,19 @@ static const TypeInfo strongarm_ssp_info = {
/* Main CPU functions */
StrongARMState *sa1110_init(MemoryRegion *sysmem,
- unsigned int sdram_size, const char *rev)
+ unsigned int sdram_size, const char *cpu_type)
{
StrongARMState *s;
int i;
s = g_new0(StrongARMState, 1);
- if (!rev) {
- rev = "sa1110-b5";
- }
-
- if (strncmp(rev, "sa1110", 6)) {
+ if (strncmp(cpu_type, "sa1110", 6)) {
error_report("Machine requires a SA1110 processor.");
exit(1);
}
- s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
+ s->cpu = ARM_CPU(cpu_create(cpu_type));
memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
sdram_size);
diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
index 8b757ff..75631f6 100644
--- a/hw/arm/tosa.c
+++ b/hw/arm/tosa.c
@@ -219,7 +219,6 @@ static struct arm_boot_info tosa_binfo = {
static void tosa_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
@@ -229,9 +228,6 @@ static void tosa_init(MachineState *machine)
TC6393xbState *tmio;
DeviceState *scp0, *scp1;
- if (!cpu_model)
- cpu_model = "pxa255";
-
mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c
index b0e9f5b..ffda0ba 100644
--- a/hw/arm/versatilepb.c
+++ b/hw/arm/versatilepb.c
@@ -181,7 +181,6 @@ static struct arm_boot_info versatile_binfo;
static void versatile_init(MachineState *machine, int board_id)
{
- ObjectClass *cpu_oc;
Object *cpuobj;
ARMCPU *cpu;
MemoryRegion *sysmem = get_system_memory();
@@ -207,17 +206,7 @@ static void versatile_init(MachineState *machine, int board_id)
exit(1);
}
- if (!machine->cpu_model) {
- machine->cpu_model = "arm926";
- }
-
- cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, machine->cpu_model);
- if (!cpu_oc) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
-
- cpuobj = object_new(object_class_get_name(cpu_oc));
+ cpuobj = object_new(machine->cpu_type);
/* By default ARM1176 CPUs have EL3 enabled. This board does not
* currently support EL3 so the CPU EL3 property is disabled before
@@ -403,6 +392,7 @@ static void versatilepb_class_init(ObjectClass *oc, void *data)
mc->desc = "ARM Versatile/PB (ARM926EJ-S)";
mc->init = vpb_init;
mc->block_default_type = IF_SCSI;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
}
static const TypeInfo versatilepb_type = {
@@ -418,6 +408,7 @@ static void versatileab_class_init(ObjectClass *oc, void *data)
mc->desc = "ARM Versatile/AB (ARM926EJ-S)";
mc->init = vab_init;
mc->block_default_type = IF_SCSI;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
}
static const TypeInfo versatileab_type = {
diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
index 528c65d..4fdeda2 100644
--- a/hw/arm/vexpress.c
+++ b/hw/arm/vexpress.c
@@ -184,7 +184,7 @@ typedef struct {
typedef void DBoardInitFn(const VexpressMachineState *machine,
ram_addr_t ram_size,
- const char *cpu_model,
+ const char *cpu_type,
qemu_irq *pic);
struct VEDBoardInfo {
@@ -200,22 +200,16 @@ struct VEDBoardInfo {
DBoardInitFn *init;
};
-static void init_cpus(const char *cpu_model, const char *privdev,
+static void init_cpus(const char *cpu_type, const char *privdev,
hwaddr periphbase, qemu_irq *pic, bool secure)
{
- ObjectClass *cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
DeviceState *dev;
SysBusDevice *busdev;
int n;
- if (!cpu_oc) {
- fprintf(stderr, "Unable to find CPU definition\n");
- exit(1);
- }
-
/* Create the actual CPUs */
for (n = 0; n < smp_cpus; n++) {
- Object *cpuobj = object_new(object_class_get_name(cpu_oc));
+ Object *cpuobj = object_new(cpu_type);
if (!secure) {
object_property_set_bool(cpuobj, false, "has_el3", NULL);
@@ -260,7 +254,7 @@ static void init_cpus(const char *cpu_model, const char *privdev,
static void a9_daughterboard_init(const VexpressMachineState *vms,
ram_addr_t ram_size,
- const char *cpu_model,
+ const char *cpu_type,
qemu_irq *pic)
{
MemoryRegion *sysmem = get_system_memory();
@@ -268,10 +262,6 @@ static void a9_daughterboard_init(const VexpressMachineState *vms,
MemoryRegion *lowram = g_new(MemoryRegion, 1);
ram_addr_t low_ram_size;
- if (!cpu_model) {
- cpu_model = "cortex-a9";
- }
-
if (ram_size > 0x40000000) {
/* 1GB is the maximum the address space permits */
fprintf(stderr, "vexpress-a9: cannot model more than 1GB RAM\n");
@@ -293,7 +283,7 @@ static void a9_daughterboard_init(const VexpressMachineState *vms,
memory_region_add_subregion(sysmem, 0x60000000, ram);
/* 0x1e000000 A9MPCore (SCU) private memory region */
- init_cpus(cpu_model, "a9mpcore_priv", 0x1e000000, pic, vms->secure);
+ init_cpus(cpu_type, "a9mpcore_priv", 0x1e000000, pic, vms->secure);
/* Daughterboard peripherals : 0x10020000 .. 0x20000000 */
@@ -349,17 +339,13 @@ static VEDBoardInfo a9_daughterboard = {
static void a15_daughterboard_init(const VexpressMachineState *vms,
ram_addr_t ram_size,
- const char *cpu_model,
+ const char *cpu_type,
qemu_irq *pic)
{
MemoryRegion *sysmem = get_system_memory();
MemoryRegion *ram = g_new(MemoryRegion, 1);
MemoryRegion *sram = g_new(MemoryRegion, 1);
- if (!cpu_model) {
- cpu_model = "cortex-a15";
- }
-
{
/* We have to use a separate 64 bit variable here to avoid the gcc
* "comparison is always false due to limited range of data type"
@@ -378,7 +364,7 @@ static void a15_daughterboard_init(const VexpressMachineState *vms,
memory_region_add_subregion(sysmem, 0x80000000, ram);
/* 0x2c000000 A15MPCore private memory region (GIC) */
- init_cpus(cpu_model, "a15mpcore_priv", 0x2c000000, pic, vms->secure);
+ init_cpus(cpu_type, "a15mpcore_priv", 0x2c000000, pic, vms->secure);
/* A15 daughterboard peripherals: */
@@ -558,7 +544,7 @@ static void vexpress_common_init(MachineState *machine)
const hwaddr *map = daughterboard->motherboard_map;
int i;
- daughterboard->init(vms, machine->ram_size, machine->cpu_model, pic);
+ daughterboard->init(vms, machine->ram_size, machine->cpu_type, pic);
/*
* If a bios file was provided, attempt to map it into memory
@@ -758,6 +744,7 @@ static void vexpress_a9_class_init(ObjectClass *oc, void *data)
VexpressMachineClass *vmc = VEXPRESS_MACHINE_CLASS(oc);
mc->desc = "ARM Versatile Express for Cortex-A9";
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
vmc->daughterboard = &a9_daughterboard;
}
@@ -768,6 +755,7 @@ static void vexpress_a15_class_init(ObjectClass *oc, void *data)
VexpressMachineClass *vmc = VEXPRESS_MACHINE_CLASS(oc);
mc->desc = "ARM Versatile Express for Cortex-A15";
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
vmc->daughterboard = &a15_daughterboard;
}
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 6b7a0fe..c68cf08 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -163,13 +163,13 @@ static const int a15irqmap[] = {
};
static const char *valid_cpus[] = {
- "cortex-a15",
- "cortex-a53",
- "cortex-a57",
- "host",
+ ARM_CPU_TYPE_NAME("cortex-a15"),
+ ARM_CPU_TYPE_NAME("cortex-a53"),
+ ARM_CPU_TYPE_NAME("cortex-a57"),
+ ARM_CPU_TYPE_NAME("host"),
};
-static bool cpuname_valid(const char *cpu)
+static bool cpu_type_valid(const char *cpu)
{
int i;
@@ -1250,18 +1250,8 @@ static void machvirt_init(MachineState *machine)
MemoryRegion *secure_sysmem = NULL;
int n, virt_max_cpus;
MemoryRegion *ram = g_new(MemoryRegion, 1);
- const char *cpu_model = machine->cpu_model;
- char **cpustr;
- ObjectClass *oc;
- const char *typename;
- CPUClass *cc;
- Error *err = NULL;
bool firmware_loaded = bios_name || drive_get(IF_PFLASH, 0, 0);
- if (!cpu_model) {
- cpu_model = "cortex-a15";
- }
-
/* We can probe only here because during property set
* KVM is not available yet
*/
@@ -1278,11 +1268,8 @@ static void machvirt_init(MachineState *machine)
}
}
- /* Separate the actual CPU model name from any appended features */
- cpustr = g_strsplit(cpu_model, ",", 2);
-
- if (!cpuname_valid(cpustr[0])) {
- error_report("mach-virt: CPU %s not supported", cpustr[0]);
+ if (!cpu_type_valid(machine->cpu_type)) {
+ error_report("mach-virt: CPU type %s not supported", machine->cpu_type);
exit(1);
}
@@ -1352,22 +1339,6 @@ static void machvirt_init(MachineState *machine)
create_fdt(vms);
- oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
- if (!oc) {
- error_report("Unable to find CPU definition");
- exit(1);
- }
- typename = object_class_get_name(oc);
-
- /* convert -smp CPU options specified by the user into global props */
- cc = CPU_CLASS(oc);
- cc->parse_features(typename, cpustr[1], &err);
- g_strfreev(cpustr);
- if (err) {
- error_report_err(err);
- exit(1);
- }
-
possible_cpus = mc->possible_cpu_arch_ids(machine);
for (n = 0; n < possible_cpus->len; n++) {
Object *cpuobj;
@@ -1377,7 +1348,7 @@ static void machvirt_init(MachineState *machine)
break;
}
- cpuobj = object_new(typename);
+ cpuobj = object_new(machine->cpu_type);
object_property_set_int(cpuobj, possible_cpus->cpus[n].arch_id,
"mp-affinity", NULL);
@@ -1622,6 +1593,7 @@ static void virt_machine_class_init(ObjectClass *oc, void *data)
mc->minimum_page_bits = 12;
mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids;
mc->cpu_index_to_instance_props = virt_cpu_index_to_props;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
}
static const TypeInfo virt_machine_info = {
diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c
index 6b11a75..4efca78 100644
--- a/hw/arm/xilinx_zynq.c
+++ b/hw/arm/xilinx_zynq.c
@@ -156,11 +156,9 @@ static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
static void zynq_init(MachineState *machine)
{
ram_addr_t ram_size = machine->ram_size;
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
- ObjectClass *cpu_oc;
ARMCPU *cpu;
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *ext_ram = g_new(MemoryRegion, 1);
@@ -172,12 +170,7 @@ static void zynq_init(MachineState *machine)
qemu_irq pic[64];
int n;
- if (!cpu_model) {
- cpu_model = "cortex-a9";
- }
- cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
-
- cpu = ARM_CPU(object_new(object_class_get_name(cpu_oc)));
+ cpu = ARM_CPU(object_new(machine->cpu_type));
/* By default A9 CPUs have EL3 enabled. This board does not
* currently support EL3 so the CPU EL3 property is disabled before
@@ -324,6 +317,7 @@ static void zynq_machine_init(MachineClass *mc)
mc->init = zynq_init;
mc->max_cpus = 1;
mc->no_sdcard = 1;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
}
DEFINE_MACHINE("xilinx-zynq-a9", zynq_machine_init)
diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index 1607cbd..f306407 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -26,6 +26,7 @@
#include "audio/audio.h"
#include "exec/address-spaces.h"
#include "sysemu/qtest.h"
+#include "cpu.h"
#ifdef DEBUG_Z2
#define DPRINTF(fmt, ...) \
@@ -296,7 +297,6 @@ static const TypeInfo aer915_info = {
static void z2_init(MachineState *machine)
{
- const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
@@ -309,12 +309,8 @@ static void z2_init(MachineState *machine)
I2CBus *bus;
DeviceState *wm;
- if (!cpu_model) {
- cpu_model = "pxa270-c5";
- }
-
/* Setup CPU & memory */
- mpu = pxa270_init(address_space_mem, z2_binfo.ram_size, cpu_model);
+ mpu = pxa270_init(address_space_mem, z2_binfo.ram_size, machine->cpu_type);
#ifdef TARGET_WORDS_BIGENDIAN
be = 1;
@@ -370,6 +366,7 @@ static void z2_machine_init(MachineClass *mc)
{
mc->desc = "Zipit Z2 (PXA27x)";
mc->init = z2_init;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
}
DEFINE_MACHINE("z2", z2_machine_init)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 05c038b..feeeeb2 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -867,7 +867,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
}
cpuname = g_strsplit(cpu_model, ",", 1);
- typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpuname[0]);
+ typename = g_strdup_printf("%s" ARM_CPU_TYPE_SUFFIX, cpuname[0]);
oc = object_class_by_name(typename);
g_strfreev(cpuname);
g_free(typename);
--
2.7.4
^ permalink raw reply related [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model()
2017-09-04 14:00 ` [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model() Igor Mammedov
@ 2017-09-04 15:03 ` Philippe Mathieu-Daudé
2017-09-04 19:06 ` Igor Mammedov
0 siblings, 1 reply; 37+ messages in thread
From: Philippe Mathieu-Daudé @ 2017-09-04 15:03 UTC (permalink / raw)
To: Igor Mammedov, qemu-devel
Cc: Andrew Jones, Eduardo Habkost, Richard Henderson
Hi Igor,
On 09/04/2017 11:00 AM, Igor Mammedov wrote:
> function not just parses features but also converts CPU model
> name to CPU type, rename it to reflect what it actualy does.
Why not squash this with your 1st patch "split cpu_generic_init()"?
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
> include/qom/cpu.h | 4 ++--
> qom/cpu.c | 4 ++--
> 2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> index 392ae75..a718daf 100644
> --- a/include/qom/cpu.h
> +++ b/include/qom/cpu.h
> @@ -643,7 +643,7 @@ ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
> CPUState *cpu_create(const char *typename);
>
> /**
> - * cpu_parse_features:
> + * cpu_parse_cpu_model:
> * @typename: The CPU base type or CPU type.
> * @cpu_model: The model string including optional parameters.
> *
> @@ -652,7 +652,7 @@ CPUState *cpu_create(const char *typename);
> * Returns: type of CPU to create or prints error and terminates process
> * if an error occurred.
> */
> -const char *cpu_parse_features(const char *typename, const char *cpu_model);
> +const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model);
>
> /**
> * cpu_generic_init:
> diff --git a/qom/cpu.c b/qom/cpu.c
> index 307d638..199ad57 100644
> --- a/qom/cpu.c
> +++ b/qom/cpu.c
> @@ -66,7 +66,7 @@ CPUState *cpu_create(const char *typename)
> return cpu;
> }
>
> -const char *cpu_parse_features(const char *typename, const char *cpu_model)
> +const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model)
> {
> ObjectClass *oc;
> CPUClass *cc;
> @@ -99,7 +99,7 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> /* TODO: all callers of cpu_generic_init() need to be converted to
> * call cpu_parse_features() only once, before calling cpu_generic_init().
> */
> - const char *cpu_type = cpu_parse_features(typename, cpu_model);
> + const char *cpu_type = cpu_parse_cpu_model(typename, cpu_model);
>
> assert(cpu_type);
> return cpu_create(cpu_type);
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-04 14:00 ` [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error Igor Mammedov
@ 2017-09-04 15:15 ` Philippe Mathieu-Daudé
2017-09-11 14:30 ` Igor Mammedov
2017-09-05 5:41 ` Thomas Huth
2017-09-05 20:19 ` Eduardo Habkost
2 siblings, 1 reply; 37+ messages in thread
From: Philippe Mathieu-Daudé @ 2017-09-04 15:15 UTC (permalink / raw)
To: Igor Mammedov, qemu-devel
Cc: Peter Maydell, Anthony Green, Mark Cave-Ayland, Max Filippov,
Edgar E. Iglesias, Guan Xuetao, Jia Liu, Magnus Damm,
Alexander Graf, Hervé Poussineau, Richard Henderson,
Artyom Tarasenko, Andrew Jones, Eduardo Habkost, Riku Voipio,
Fabien Chouteau, Jan Kiszka, Yongbok Kim, Stafford Horne,
David Gibson, Thomas Huth, Bastian Koppelmann, Laurent Vivier,
Michael Walle, Aurelien Jarno
On 09/04/2017 11:00 AM, Igor Mammedov wrote:
> Almost every user of cpu_generic_init() checks for
> returned NULL and then reports failure in a custom way
> and aborts process.
> Some users assume that call can't fail and don't check
> for failure, though they should have checked for it.
>
> In either cases cpu_generic_init() failure is fatal,
> so instead of checking for failure and reporting
> it various ways, make cpu_generic_init() report
> errors in consistent way and terminate QEMU on failure.
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
> Even though it's tree wide change, it's trivial so all
> affected call sites are included within one patch.
>
> CC: Richard Henderson <rth@twiddle.net>
> CC: Jan Kiszka <jan.kiszka@web.de>
> CC: Peter Maydell <peter.maydell@linaro.org>
> CC: Andrzej Zaborowski <balrogg@gmail.com>
> CC: Michael Walle <michael@walle.cc>
> CC: Thomas Huth <huth@tuxfamily.org>
> CC: Aurelien Jarno <aurelien@aurel32.net>
> CC: Yongbok Kim <yongbok.kim@imgtec.com>
> CC: "Hervé Poussineau" <hpoussin@reactos.org>
> CC: Anthony Green <green@moxielogic.com>
> CC: Jia Liu <proljc@gmail.com>
> CC: Stafford Horne <shorne@gmail.com>
> CC: Alexander Graf <agraf@suse.de>
> CC: David Gibson <david@gibson.dropbear.id.au>
> CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
> CC: Magnus Damm <magnus.damm@gmail.com>
> CC: Fabien Chouteau <chouteau@adacore.com>
> CC: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
> CC: Artyom Tarasenko <atar4qemu@gmail.com>
> CC: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
> CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
> CC: Max Filippov <jcmvbkbc@gmail.com>
> CC: Riku Voipio <riku.voipio@iki.fi>
> CC: Laurent Vivier <laurent@vivier.eu>
>
> ---
> include/qom/cpu.h | 3 ++-
> bsd-user/main.c | 4 ----
> hw/alpha/dp264.c | 4 ----
> hw/arm/musicpal.c | 4 ----
> hw/arm/omap1.c | 4 ----
> hw/arm/omap2.c | 4 ----
> hw/arm/pxa2xx.c | 8 --------
> hw/arm/strongarm.c | 5 -----
> hw/lm32/lm32_boards.c | 8 --------
> hw/lm32/milkymist.c | 4 ----
> hw/m68k/an5206.c | 4 ----
> hw/m68k/mcf5208.c | 4 ----
> hw/mips/cps.c | 4 ----
> hw/mips/mips_fulong2e.c | 4 ----
> hw/mips/mips_jazz.c | 4 ----
> hw/mips/mips_malta.c | 4 ----
> hw/mips/mips_mipssim.c | 4 ----
> hw/mips/mips_r4k.c | 4 ----
> hw/moxie/moxiesim.c | 4 ----
> hw/openrisc/openrisc_sim.c | 4 ----
> hw/ppc/e500.c | 4 ----
> hw/ppc/mac_newworld.c | 4 ----
> hw/ppc/mac_oldworld.c | 4 ----
> hw/ppc/ppc440_bamboo.c | 4 ----
> hw/ppc/ppc4xx_devs.c | 5 -----
> hw/ppc/prep.c | 9 ---------
> hw/ppc/virtex_ml507.c | 4 ----
> hw/sh4/r2d.c | 4 ----
> hw/sh4/shix.c | 4 ----
> hw/sparc/leon3.c | 4 ----
> hw/sparc/sun4m.c | 4 ----
> hw/sparc64/sparc64.c | 4 ----
> hw/tricore/tricore_testboard.c | 4 ----
> hw/unicore32/puv3.c | 4 ----
> hw/xtensa/sim.c | 5 -----
> hw/xtensa/xtfpga.c | 5 -----
> linux-user/main.c | 4 ----
> qom/cpu.c | 13 ++++++-------
> 38 files changed, 8 insertions(+), 169 deletions(-)
>
> diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> index a92a7d2..392ae75 100644
> --- a/include/qom/cpu.h
> +++ b/include/qom/cpu.h
> @@ -649,7 +649,8 @@ CPUState *cpu_create(const char *typename);
> *
> * processes optional parameters and registers them as global properties
> *
> - * Returns: type of CPU to create or %NULL if an error occurred.
> + * Returns: type of CPU to create or prints error and terminates process
> + * if an error occurred.
> */
> const char *cpu_parse_features(const char *typename, const char *cpu_model);
>
> diff --git a/bsd-user/main.c b/bsd-user/main.c
> index 8a6706a..836daac 100644
> --- a/bsd-user/main.c
> +++ b/bsd-user/main.c
> @@ -902,10 +902,6 @@ int main(int argc, char **argv)
> /* NOTE: we need to init the CPU at this stage to get
> qemu_host_page_size */
> cpu = cpu_init(cpu_model);
> - if (!cpu) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> env = cpu->env_ptr;
> #if defined(TARGET_SPARC) || defined(TARGET_PPC)
> cpu_reset(cpu);
> diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c
> index 1c5a177..1b12130 100644
> --- a/hw/alpha/dp264.c
> +++ b/hw/alpha/dp264.c
> @@ -68,10 +68,6 @@ static void clipper_init(MachineState *machine)
> memset(cpus, 0, sizeof(cpus));
> for (i = 0; i < smp_cpus; ++i) {
> cpus[i] = ALPHA_CPU(cpu_generic_init(TYPE_ALPHA_CPU, cpu_model));
> - if (!cpus[i]) {
> - error_report("Unable to find CPU definition");
> - exit(1);
> - }
> }
>
> cpus[0]->env.trap_arg0 = ram_size;
> diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
> index a8b3d46..64c8e09 100644
> --- a/hw/arm/musicpal.c
> +++ b/hw/arm/musicpal.c
> @@ -1594,10 +1594,6 @@ static void musicpal_init(MachineState *machine)
> cpu_model = "arm926";
> }
> cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, cpu_model));
> - if (!cpu) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
>
> /* For now we use a fixed - the original - RAM size */
> memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",
> diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
> index 400ba30..04e65ce 100644
> --- a/hw/arm/omap1.c
> +++ b/hw/arm/omap1.c
> @@ -3864,10 +3864,6 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
> /* Core */
> s->mpu_model = omap310;
> s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core));
> - if (s->cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> s->sdram_size = sdram_size;
> s->sram_size = OMAP15XX_SRAM_SIZE;
>
> diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
> index ece25ae..5821477 100644
> --- a/hw/arm/omap2.c
> +++ b/hw/arm/omap2.c
> @@ -2262,10 +2262,6 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
> /* Core */
> s->mpu_model = omap2420;
> s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core ?: "arm1136-r2"));
> - if (s->cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> s->sdram_size = sdram_size;
> s->sram_size = OMAP242X_SRAM_SIZE;
>
> diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
> index b0ac3cf..c16657d 100644
> --- a/hw/arm/pxa2xx.c
> +++ b/hw/arm/pxa2xx.c
> @@ -2067,10 +2067,6 @@ PXA2xxState *pxa270_init(MemoryRegion *address_space,
> revision = "pxa270";
>
> s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, revision));
> - if (s->cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
>
> /* SDRAM & Internal Memory Storage */
> @@ -2197,10 +2193,6 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
> s = g_new0(PXA2xxState, 1);
>
> s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, "pxa255"));
> - if (s->cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
>
> /* SDRAM & Internal Memory Storage */
> diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
> index 884242b..c1145dd 100644
> --- a/hw/arm/strongarm.c
> +++ b/hw/arm/strongarm.c
> @@ -1599,11 +1599,6 @@ StrongARMState *sa1110_init(MemoryRegion *sysmem,
>
> s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
>
> - if (!s->cpu) {
> - error_report("Unable to find CPU definition");
> - exit(1);
> - }
> -
> memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
> sdram_size);
> memory_region_add_subregion(sysmem, SA_SDCS0, &s->sdram);
> diff --git a/hw/lm32/lm32_boards.c b/hw/lm32/lm32_boards.c
> index eccf0ac..b0bb3ef 100644
> --- a/hw/lm32/lm32_boards.c
> +++ b/hw/lm32/lm32_boards.c
> @@ -105,10 +105,6 @@ static void lm32_evr_init(MachineState *machine)
> cpu_model = "lm32-full";
> }
> cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
> - exit(1);
> - }
>
> env = &cpu->env;
> reset_info->cpu = cpu;
> @@ -206,10 +202,6 @@ static void lm32_uclinux_init(MachineState *machine)
> cpu_model = "lm32-full";
> }
> cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
> - exit(1);
> - }
>
> env = &cpu->env;
> reset_info->cpu = cpu;
> diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c
> index dffd879..4db4d2d 100644
> --- a/hw/lm32/milkymist.c
> +++ b/hw/lm32/milkymist.c
> @@ -112,10 +112,6 @@ milkymist_init(MachineState *machine)
> cpu_model = "lm32-full";
> }
> cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
> - exit(1);
> - }
>
> env = &cpu->env;
> reset_info->cpu = cpu;
> diff --git a/hw/m68k/an5206.c b/hw/m68k/an5206.c
> index 7b9b15d..9002c46 100644
> --- a/hw/m68k/an5206.c
> +++ b/hw/m68k/an5206.c
> @@ -43,10 +43,6 @@ static void an5206_init(MachineState *machine)
> cpu_model = "m5206";
> }
> cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
> - if (!cpu) {
> - error_report("Unable to find m68k CPU definition");
> - exit(1);
> - }
> env = &cpu->env;
>
> /* Initialize CPU registers. */
> diff --git a/hw/m68k/mcf5208.c b/hw/m68k/mcf5208.c
> index 1a0f180..b9dde75 100644
> --- a/hw/m68k/mcf5208.c
> +++ b/hw/m68k/mcf5208.c
> @@ -233,10 +233,6 @@ static void mcf5208evb_init(MachineState *machine)
> cpu_model = "m5208";
> }
> cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
> - if (!cpu) {
> - fprintf(stderr, "Unable to find m68k CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> /* Initialize CPU registers. */
> diff --git a/hw/mips/cps.c b/hw/mips/cps.c
> index 4ef337d..79d4c5e 100644
> --- a/hw/mips/cps.c
> +++ b/hw/mips/cps.c
> @@ -72,10 +72,6 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
>
> for (i = 0; i < s->num_vp; i++) {
> cpu = cpu_mips_init(s->cpu_model);
> - if (cpu == NULL) {
> - error_setg(errp, "%s: CPU initialization failed", __func__);
> - return;
> - }
>
> /* Init internal devices */
> cpu_mips_irq_init_cpu(cpu);
> diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
> index 3532399..439a3d7 100644
> --- a/hw/mips/mips_fulong2e.c
> +++ b/hw/mips/mips_fulong2e.c
> @@ -281,10 +281,6 @@ static void mips_fulong2e_init(MachineState *machine)
> cpu_model = "Loongson-2E";
> }
> cpu = cpu_mips_init(cpu_model);
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> qemu_register_reset(main_cpu_reset, cpu);
> diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
> index df2262a..ae10670 100644
> --- a/hw/mips/mips_jazz.c
> +++ b/hw/mips/mips_jazz.c
> @@ -152,10 +152,6 @@ static void mips_jazz_init(MachineState *machine,
> cpu_model = "R4000";
> }
> cpu = cpu_mips_init(cpu_model);
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
> qemu_register_reset(main_cpu_reset, cpu);
>
> diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> index af678f5..c82e0af 100644
> --- a/hw/mips/mips_malta.c
> +++ b/hw/mips/mips_malta.c
> @@ -932,10 +932,6 @@ static void create_cpu_without_cps(const char *cpu_model,
>
> for (i = 0; i < smp_cpus; i++) {
> cpu = cpu_mips_init(cpu_model);
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
>
> /* Init internal devices */
> cpu_mips_irq_init_cpu(cpu);
> diff --git a/hw/mips/mips_mipssim.c b/hw/mips/mips_mipssim.c
> index 07fc4c2..49cd38d 100644
> --- a/hw/mips/mips_mipssim.c
> +++ b/hw/mips/mips_mipssim.c
> @@ -164,10 +164,6 @@ mips_mipssim_init(MachineState *machine)
> #endif
> }
> cpu = cpu_mips_init(cpu_model);
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> reset_info = g_malloc0(sizeof(ResetData));
> diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c
> index 2f5ced7..60da607 100644
> --- a/hw/mips/mips_r4k.c
> +++ b/hw/mips/mips_r4k.c
> @@ -194,10 +194,6 @@ void mips_r4k_init(MachineState *machine)
> #endif
> }
> cpu = cpu_mips_init(cpu_model);
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> reset_info = g_malloc0(sizeof(ResetData));
> diff --git a/hw/moxie/moxiesim.c b/hw/moxie/moxiesim.c
> index 4c27b45..5ea8dd3 100644
> --- a/hw/moxie/moxiesim.c
> +++ b/hw/moxie/moxiesim.c
> @@ -119,10 +119,6 @@ static void moxiesim_init(MachineState *machine)
> cpu_model = "MoxieLite-moxie-cpu";
> }
> cpu = MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
> - if (!cpu) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> qemu_register_reset(main_cpu_reset, cpu);
> diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
> index 243d802..86bf284 100644
> --- a/hw/openrisc/openrisc_sim.c
> +++ b/hw/openrisc/openrisc_sim.c
> @@ -110,10 +110,6 @@ static void openrisc_sim_init(MachineState *machine)
>
> for (n = 0; n < smp_cpus; n++) {
> cpu = OPENRISC_CPU(cpu_generic_init(TYPE_OPENRISC_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition!\n");
> - exit(1);
> - }
> qemu_register_reset(main_cpu_reset, cpu);
> main_cpu_reset(cpu);
> }
> diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
> index f0596f3..fc4786c 100644
> --- a/hw/ppc/e500.c
> +++ b/hw/ppc/e500.c
> @@ -821,10 +821,6 @@ void ppce500_init(MachineState *machine, PPCE500Params *params)
>
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> machine->cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to initialize CPU!\n");
> - exit(1);
> - }
> env = &cpu->env;
> cs = CPU(cpu);
>
> diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
> index d466634..33b46cb 100644
> --- a/hw/ppc/mac_newworld.c
> +++ b/hw/ppc/mac_newworld.c
> @@ -189,10 +189,6 @@ static void ppc_core99_init(MachineState *machine)
> for (i = 0; i < smp_cpus; i++) {
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> machine->cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find PowerPC CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> /* Set time-base frequency to 100 Mhz */
> diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
> index fcac399..193b904 100644
> --- a/hw/ppc/mac_oldworld.c
> +++ b/hw/ppc/mac_oldworld.c
> @@ -118,10 +118,6 @@ static void ppc_heathrow_init(MachineState *machine)
> for (i = 0; i < smp_cpus; i++) {
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> machine->cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find PowerPC CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> /* Set time-base frequency to 16.6 Mhz */
> diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
> index ca26398..f92d47f 100644
> --- a/hw/ppc/ppc440_bamboo.c
> +++ b/hw/ppc/ppc440_bamboo.c
> @@ -187,10 +187,6 @@ static void bamboo_init(MachineState *machine)
> machine->cpu_model = "440EP";
> }
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to initialize CPU!\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> if (env->mmu_model != POWERPC_MMU_BOOKE) {
> diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c
> index 6b38ed7..88f3d4c 100644
> --- a/hw/ppc/ppc4xx_devs.c
> +++ b/hw/ppc/ppc4xx_devs.c
> @@ -57,11 +57,6 @@ PowerPCCPU *ppc4xx_init(const char *cpu_model,
>
> /* init CPUs */
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find PowerPC %s CPU definition\n",
> - cpu_model);
> - exit(1);
> - }
> env = &cpu->env;
>
> cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */
> diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
> index 00f3321..94138a4 100644
> --- a/hw/ppc/prep.c
> +++ b/hw/ppc/prep.c
> @@ -522,10 +522,6 @@ static void ppc_prep_init(MachineState *machine)
> for (i = 0; i < smp_cpus; i++) {
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> machine->cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find PowerPC CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> if (env->flags & POWERPC_FLAG_RTC_CLK) {
> @@ -726,11 +722,6 @@ static void ibm_40p_init(MachineState *machine)
> machine->cpu_model = "604";
> }
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
> - if (!cpu) {
> - error_report("could not initialize CPU '%s'",
> - machine->cpu_model);
> - exit(1);
> - }
> env = &cpu->env;
> if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
> error_report("only 6xx bus is supported on this machine");
> diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
> index d5fdc16..ed9b406 100644
> --- a/hw/ppc/virtex_ml507.c
> +++ b/hw/ppc/virtex_ml507.c
> @@ -97,10 +97,6 @@ static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size,
> qemu_irq *irqs;
>
> cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to initialize CPU!\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> ppc_booke_timers_init(cpu, sysclk, 0/* no flags */);
> diff --git a/hw/sh4/r2d.c b/hw/sh4/r2d.c
> index 22bc534..16b9ed2 100644
> --- a/hw/sh4/r2d.c
> +++ b/hw/sh4/r2d.c
> @@ -247,10 +247,6 @@ static void r2d_init(MachineState *machine)
> }
>
> cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> reset_info = g_malloc0(sizeof(ResetData));
> diff --git a/hw/sh4/shix.c b/hw/sh4/shix.c
> index 7f8a4b6..50ee36a 100644
> --- a/hw/sh4/shix.c
> +++ b/hw/sh4/shix.c
> @@ -57,10 +57,6 @@ static void shix_init(MachineState *machine)
> cpu_model = "any";
>
> cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
>
> /* Allocate memory space */
> memory_region_init_ram(rom, NULL, "shix.rom", 0x4000, &error_fatal);
> diff --git a/hw/sparc/leon3.c b/hw/sparc/leon3.c
> index 56512ec..ec2816b 100644
> --- a/hw/sparc/leon3.c
> +++ b/hw/sparc/leon3.c
> @@ -127,10 +127,6 @@ static void leon3_generic_hw_init(MachineState *machine)
> }
>
> cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> cpu_sparc_set_id(env, 0);
> diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
> index cf47dca..e1bdd48 100644
> --- a/hw/sparc/sun4m.c
> +++ b/hw/sparc/sun4m.c
> @@ -798,10 +798,6 @@ static void cpu_devinit(const char *cpu_model, unsigned int id,
> CPUSPARCState *env;
>
> cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> cpu_sparc_set_id(env, id);
> diff --git a/hw/sparc64/sparc64.c b/hw/sparc64/sparc64.c
> index ecf38a4..097d529 100644
> --- a/hw/sparc64/sparc64.c
> +++ b/hw/sparc64/sparc64.c
> @@ -354,10 +354,6 @@ SPARCCPU *sparc64_cpu_devinit(const char *cpu_model,
> cpu_model = default_cpu_model;
> }
> cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
> - if (cpu == NULL) {
> - fprintf(stderr, "Unable to find Sparc CPU definition\n");
> - exit(1);
> - }
> env = &cpu->env;
>
> env->tick = cpu_timer_create("tick", cpu, tick_irq,
> diff --git a/hw/tricore/tricore_testboard.c b/hw/tricore/tricore_testboard.c
> index 3fcd8bb..0486f8a 100644
> --- a/hw/tricore/tricore_testboard.c
> +++ b/hw/tricore/tricore_testboard.c
> @@ -75,10 +75,6 @@ static void tricore_testboard_init(MachineState *machine, int board_id)
> machine->cpu_model = "tc1796";
> }
> cpu = TRICORE_CPU(cpu_generic_init(TYPE_TRICORE_CPU, machine->cpu_model));
> - if (!cpu) {
> - error_report("Unable to find CPU definition");
> - exit(1);
> - }
> env = &cpu->env;
> memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
> 2 * 1024 * 1024, &error_fatal);
> diff --git a/hw/unicore32/puv3.c b/hw/unicore32/puv3.c
> index eb9862f..504ea46 100644
> --- a/hw/unicore32/puv3.c
> +++ b/hw/unicore32/puv3.c
> @@ -128,10 +128,6 @@ static void puv3_init(MachineState *machine)
> }
>
> cpu = UNICORE32_CPU(cpu_generic_init(TYPE_UNICORE32_CPU, cpu_model));
> - if (!cpu) {
> - error_report("Unable to find CPU definition");
> - exit(1);
> - }
> env = &cpu->env;
>
> puv3_soc_init(env);
> diff --git a/hw/xtensa/sim.c b/hw/xtensa/sim.c
> index 1b4767f..b3580b1 100644
> --- a/hw/xtensa/sim.c
> +++ b/hw/xtensa/sim.c
> @@ -85,11 +85,6 @@ static void xtensa_sim_init(MachineState *machine)
>
> for (n = 0; n < smp_cpus; n++) {
> cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
> - if (cpu == NULL) {
> - error_report("unable to find CPU definition '%s'",
> - cpu_model);
> - exit(EXIT_FAILURE);
> - }
> env = &cpu->env;
>
> env->sregs[PRID] = n;
> diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
> index 182ec1e..a19cceb 100644
> --- a/hw/xtensa/xtfpga.c
> +++ b/hw/xtensa/xtfpga.c
> @@ -233,11 +233,6 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
>
> for (n = 0; n < smp_cpus; n++) {
> cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
> - if (cpu == NULL) {
> - error_report("unable to find CPU definition '%s'",
> - cpu_model);
> - exit(EXIT_FAILURE);
> - }
> env = &cpu->env;
>
> env->sregs[PRID] = n;
> diff --git a/linux-user/main.c b/linux-user/main.c
> index 03666ef..829f974 100644
> --- a/linux-user/main.c
> +++ b/linux-user/main.c
> @@ -4323,10 +4323,6 @@ int main(int argc, char **argv, char **envp)
> /* NOTE: we need to init the CPU at this stage to get
> qemu_host_page_size */
> cpu = cpu_init(cpu_model);
> - if (!cpu) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(EXIT_FAILURE);
> - }
> env = cpu->env_ptr;
> cpu_reset(cpu);
>
> diff --git a/qom/cpu.c b/qom/cpu.c
> index d715890..307d638 100644
> --- a/qom/cpu.c
> +++ b/qom/cpu.c
> @@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
> if (err != NULL) {
> error_report_err(err);
> object_unref(OBJECT(cpu));
> - return NULL;
> + exit(EXIT_FAILURE);
> }
> return cpu;
> }
> @@ -78,8 +78,9 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
>
> oc = cpu_class_by_name(typename, model_pieces[0]);
> if (oc == NULL) {
> + error_report("unable to find CPU model '%s'", model_pieces[0]);
> g_strfreev(model_pieces);
> - return NULL;
> + exit(EXIT_FAILURE);
> }
>
> cpu_type = object_class_get_name(oc);
> @@ -88,7 +89,7 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> g_strfreev(model_pieces);
> if (err != NULL) {
> error_report_err(err);
> - return NULL;
> + exit(EXIT_FAILURE);
> }
> return cpu_type;
> }
> @@ -100,10 +101,8 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> */
> const char *cpu_type = cpu_parse_features(typename, cpu_model);
>
> - if (cpu_type) {
> - return cpu_create(cpu_type);
> - }
> - return NULL;
> + assert(cpu_type);
This assert seems now superfluous.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> + return cpu_create(cpu_type);
> }
>
> bool cpu_paging_enabled(const CPUState *cpu)
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 1/6] qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts
2017-09-04 14:00 ` [Qemu-devel] [PATCH 1/6] qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts Igor Mammedov
@ 2017-09-04 15:30 ` Philippe Mathieu-Daudé
0 siblings, 0 replies; 37+ messages in thread
From: Philippe Mathieu-Daudé @ 2017-09-04 15:30 UTC (permalink / raw)
To: Igor Mammedov, qemu-devel
Cc: Andrew Jones, Eduardo Habkost, Richard Henderson
On 09/04/2017 11:00 AM, Igor Mammedov wrote:
> it would allow to reuse feature parsing part in various machines
> that have CPU features instead of re-implementing the same feature
> parsing each time.
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> include/qom/cpu.h | 21 +++++++++++++++++++++
> qom/cpu.c | 46 ++++++++++++++++++++++++++++++----------------
> 2 files changed, 51 insertions(+), 16 deletions(-)
>
> diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> index b7ac949..a92a7d2 100644
> --- a/include/qom/cpu.h
> +++ b/include/qom/cpu.h
> @@ -633,6 +633,27 @@ void cpu_reset(CPUState *cpu);
> ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
>
> /**
> + * cpu_create:
> + * @typename: The CPU type.
> + *
> + * Instantiates a CPU and realizes the CPU.
> + *
> + * Returns: A #CPUState or %NULL if an error occurred.
> + */
> +CPUState *cpu_create(const char *typename);
> +
> +/**
> + * cpu_parse_features:
> + * @typename: The CPU base type or CPU type.
> + * @cpu_model: The model string including optional parameters.
> + *
> + * processes optional parameters and registers them as global properties
> + *
> + * Returns: type of CPU to create or %NULL if an error occurred.
> + */
> +const char *cpu_parse_features(const char *typename, const char *cpu_model);
> +
> +/**
> * cpu_generic_init:
> * @typename: The CPU base type.
> * @cpu_model: The model string including optional parameters.
> diff --git a/qom/cpu.c b/qom/cpu.c
> index deb8880..d715890 100644
> --- a/qom/cpu.c
> +++ b/qom/cpu.c
> @@ -53,13 +53,26 @@ bool cpu_exists(int64_t id)
> return !!cpu_by_arch_id(id);
> }
>
> -CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> +CPUState *cpu_create(const char *typename)
> +{
> + Error *err = NULL;
> + CPUState *cpu = CPU(object_new(typename));
> + object_property_set_bool(OBJECT(cpu), true, "realized", &err);
> + if (err != NULL) {
> + error_report_err(err);
> + object_unref(OBJECT(cpu));
> + return NULL;
> + }
> + return cpu;
> +}
> +
> +const char *cpu_parse_features(const char *typename, const char *cpu_model)
> {
> - CPUState *cpu = NULL;
> ObjectClass *oc;
> CPUClass *cc;
> Error *err = NULL;
> gchar **model_pieces;
> + const char *cpu_type;
>
> model_pieces = g_strsplit(cpu_model, ",", 2);
>
> @@ -69,27 +82,28 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> return NULL;
> }
>
> + cpu_type = object_class_get_name(oc);
> cc = CPU_CLASS(oc);
> - /* TODO: all callers of cpu_generic_init() need to be converted to
> - * call parse_features() only once, before calling cpu_generic_init().
> - */
> - cc->parse_features(object_class_get_name(oc), model_pieces[1], &err);
> + cc->parse_features(cpu_type, model_pieces[1], &err);
> g_strfreev(model_pieces);
> if (err != NULL) {
> - goto out;
> - }
> -
> - cpu = CPU(object_new(object_class_get_name(oc)));
> - object_property_set_bool(OBJECT(cpu), true, "realized", &err);
> -
> -out:
> - if (err != NULL) {
> error_report_err(err);
> - object_unref(OBJECT(cpu));
> return NULL;
> }
> + return cpu_type;
> +}
>
> - return cpu;
> +CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> +{
> + /* TODO: all callers of cpu_generic_init() need to be converted to
> + * call cpu_parse_features() only once, before calling cpu_generic_init().
> + */
> + const char *cpu_type = cpu_parse_features(typename, cpu_model);
> +
> + if (cpu_type) {
> + return cpu_create(cpu_type);
> + }
> + return NULL;
> }
>
> bool cpu_paging_enabled(const CPUState *cpu)
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 5/6] pc: use generic cpu_model parsing
2017-09-04 14:01 ` [Qemu-devel] [PATCH 5/6] pc: use generic cpu_model parsing Igor Mammedov
@ 2017-09-04 15:33 ` Philippe Mathieu-Daudé
0 siblings, 0 replies; 37+ messages in thread
From: Philippe Mathieu-Daudé @ 2017-09-04 15:33 UTC (permalink / raw)
To: Igor Mammedov, qemu-devel
Cc: Andrew Jones, Eduardo Habkost, Richard Henderson
On 09/04/2017 11:01 AM, Igor Mammedov wrote:
> define default CPU type in generic way in pc_machine_class_init()
> and let common machine code to handle cpu_model parsing
>
> Patch also introduces TARGET_DEFAULT_CPU_TYPE define for 2 purposes:
> * make foo_machine_class_init() look uniform on every target
> * use define in [bsd|linux]-user targets to pick default
> cpu type
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> target/i386/cpu.h | 9 +++++++++
> hw/i386/pc.c | 41 +++++------------------------------------
> hw/i386/pc_piix.c | 4 +---
> target/i386/cpu.c | 3 ---
> 4 files changed, 15 insertions(+), 42 deletions(-)
>
> diff --git a/target/i386/cpu.h b/target/i386/cpu.h
> index 525d35d..4035a11 100644
> --- a/target/i386/cpu.h
> +++ b/target/i386/cpu.h
> @@ -1508,6 +1508,15 @@ uint64_t cpu_get_tsc(CPUX86State *env);
>
> #define cpu_init(cpu_model) cpu_generic_init(TYPE_X86_CPU, cpu_model)
>
> +#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
> +#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
> +
> +#ifdef TARGET_X86_64
> +#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu64")
> +#else
> +#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu32")
> +#endif
> +
> #define cpu_signal_handler cpu_x86_signal_handler
> #define cpu_list x86_cpu_list
>
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 2108104..2247ac0 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -1107,7 +1107,6 @@ static void pc_new_cpu(const char *typename, int64_t apic_id, Error **errp)
>
> void pc_hot_add_cpu(const int64_t id, Error **errp)
> {
> - ObjectClass *oc;
> MachineState *ms = MACHINE(qdev_get_machine());
> int64_t apic_id = x86_cpu_apic_id_from_index(id);
> Error *local_err = NULL;
> @@ -1124,9 +1123,7 @@ void pc_hot_add_cpu(const int64_t id, Error **errp)
> return;
> }
>
> - assert(ms->possible_cpus->cpus[0].cpu); /* BSP is always present */
> - oc = OBJECT_CLASS(CPU_GET_CLASS(ms->possible_cpus->cpus[0].cpu));
> - pc_new_cpu(object_class_get_name(oc), apic_id, &local_err);
> + pc_new_cpu(ms->cpu_type, apic_id, &local_err);
> if (local_err) {
> error_propagate(errp, local_err);
> return;
> @@ -1136,39 +1133,10 @@ void pc_hot_add_cpu(const int64_t id, Error **errp)
> void pc_cpus_init(PCMachineState *pcms)
> {
> int i;
> - CPUClass *cc;
> - ObjectClass *oc;
> - const char *typename;
> - gchar **model_pieces;
> const CPUArchIdList *possible_cpus;
> - MachineState *machine = MACHINE(pcms);
> + MachineState *ms = MACHINE(pcms);
> MachineClass *mc = MACHINE_GET_CLASS(pcms);
>
> - /* init CPUs */
> - if (machine->cpu_model == NULL) {
> -#ifdef TARGET_X86_64
> - machine->cpu_model = "qemu64";
> -#else
> - machine->cpu_model = "qemu32";
> -#endif
> - }
> -
> - model_pieces = g_strsplit(machine->cpu_model, ",", 2);
> - if (!model_pieces[0]) {
> - error_report("Invalid/empty CPU model name");
> - exit(1);
> - }
> -
> - oc = cpu_class_by_name(TYPE_X86_CPU, model_pieces[0]);
> - if (oc == NULL) {
> - error_report("Unable to find CPU definition: %s", model_pieces[0]);
> - exit(1);
> - }
> - typename = object_class_get_name(oc);
> - cc = CPU_CLASS(oc);
> - cc->parse_features(typename, model_pieces[1], &error_fatal);
> - g_strfreev(model_pieces);
> -
> /* Calculates the limit to CPU APIC ID values
> *
> * Limit for the APIC ID value, so that all
> @@ -1177,9 +1145,9 @@ void pc_cpus_init(PCMachineState *pcms)
> * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
> */
> pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
> - possible_cpus = mc->possible_cpu_arch_ids(machine);
> + possible_cpus = mc->possible_cpu_arch_ids(ms);
> for (i = 0; i < smp_cpus; i++) {
> - pc_new_cpu(typename, possible_cpus->cpus[i].arch_id, &error_fatal);
> + pc_new_cpu(ms->cpu_type, possible_cpus->cpus[i].arch_id, &error_fatal);
> }
> }
>
> @@ -2360,6 +2328,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
> hc->unplug_request = pc_machine_device_unplug_request_cb;
> hc->unplug = pc_machine_device_unplug_cb;
> nc->nmi_monitor_handler = x86_nmi;
> + mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
>
> object_class_property_add(oc, PC_MACHINE_MEMHP_REGION_SIZE, "int",
> pc_machine_get_hotplug_memory_region_size, NULL,
> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> index 46dfd2c..a3f4e2a 100644
> --- a/hw/i386/pc_piix.c
> +++ b/hw/i386/pc_piix.c
> @@ -378,9 +378,6 @@ static void pc_compat_0_13(MachineState *machine)
>
> static void pc_init_isa(MachineState *machine)
> {
> - if (!machine->cpu_model) {
> - machine->cpu_model = "486";
> - }
> x86_cpu_change_kvm_default("kvm-pv-eoi", NULL);
> enable_compat_apic_id_mode();
> pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE);
> @@ -1104,6 +1101,7 @@ static void isapc_machine_options(MachineClass *m)
> pcmc->gigabyte_align = false;
> pcmc->smbios_legacy_mode = true;
> pcmc->has_reserved_memory = false;
> + m->default_cpu_type = X86_CPU_TYPE_NAME("486");
> }
>
> DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index f81576d..a91b2b6 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -705,9 +705,6 @@ void host_vendor_fms(char *vendor, int *family, int *model, int *stepping)
>
> /* CPU class name definitions: */
>
> -#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
> -#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
> -
> /* Return type name for a given CPU model name
> * Caller is responsible for freeing the returned string.
> */
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model()
2017-09-04 15:03 ` Philippe Mathieu-Daudé
@ 2017-09-04 19:06 ` Igor Mammedov
2017-09-05 5:38 ` Thomas Huth
0 siblings, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-04 19:06 UTC (permalink / raw)
To: Philippe Mathieu-Daudé
Cc: qemu-devel, Andrew Jones, Eduardo Habkost, Richard Henderson
On Mon, 4 Sep 2017 12:03:09 -0300
Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> Hi Igor,
>
> On 09/04/2017 11:00 AM, Igor Mammedov wrote:
> > function not just parses features but also converts CPU model
> > name to CPU type, rename it to reflect what it actualy does.
>
> Why not squash this with your 1st patch "split cpu_generic_init()"?
there I went with current/exiting way to call that part of code,
and here I'm renaming it to show what it does exactly.
But I don't have any preference here, so I can squash this patch
into 1/6 on respin, if you prefer.
>
> >
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > ---
> > include/qom/cpu.h | 4 ++--
> > qom/cpu.c | 4 ++--
> > 2 files changed, 4 insertions(+), 4 deletions(-)
> >
> > diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> > index 392ae75..a718daf 100644
> > --- a/include/qom/cpu.h
> > +++ b/include/qom/cpu.h
> > @@ -643,7 +643,7 @@ ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
> > CPUState *cpu_create(const char *typename);
> >
> > /**
> > - * cpu_parse_features:
> > + * cpu_parse_cpu_model:
> > * @typename: The CPU base type or CPU type.
> > * @cpu_model: The model string including optional parameters.
> > *
> > @@ -652,7 +652,7 @@ CPUState *cpu_create(const char *typename);
> > * Returns: type of CPU to create or prints error and terminates process
> > * if an error occurred.
> > */
> > -const char *cpu_parse_features(const char *typename, const char *cpu_model);
> > +const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model);
> >
> > /**
> > * cpu_generic_init:
> > diff --git a/qom/cpu.c b/qom/cpu.c
> > index 307d638..199ad57 100644
> > --- a/qom/cpu.c
> > +++ b/qom/cpu.c
> > @@ -66,7 +66,7 @@ CPUState *cpu_create(const char *typename)
> > return cpu;
> > }
> >
> > -const char *cpu_parse_features(const char *typename, const char *cpu_model)
> > +const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model)
> > {
> > ObjectClass *oc;
> > CPUClass *cc;
> > @@ -99,7 +99,7 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> > /* TODO: all callers of cpu_generic_init() need to be converted to
> > * call cpu_parse_features() only once, before calling cpu_generic_init().
> > */
> > - const char *cpu_type = cpu_parse_features(typename, cpu_model);
> > + const char *cpu_type = cpu_parse_cpu_model(typename, cpu_model);
> >
> > assert(cpu_type);
> > return cpu_create(cpu_type);
> >
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model()
2017-09-04 19:06 ` Igor Mammedov
@ 2017-09-05 5:38 ` Thomas Huth
2017-09-11 15:07 ` Igor Mammedov
0 siblings, 1 reply; 37+ messages in thread
From: Thomas Huth @ 2017-09-05 5:38 UTC (permalink / raw)
To: Igor Mammedov, Philippe Mathieu-Daudé
Cc: Andrew Jones, Richard Henderson, qemu-devel, Eduardo Habkost
On 04.09.2017 21:06, Igor Mammedov wrote:
> On Mon, 4 Sep 2017 12:03:09 -0300
> Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
>
>> Hi Igor,
>>
>> On 09/04/2017 11:00 AM, Igor Mammedov wrote:
>>> function not just parses features but also converts CPU model
>>> name to CPU type, rename it to reflect what it actualy does.
>>
>> Why not squash this with your 1st patch "split cpu_generic_init()"?
> there I went with current/exiting way to call that part of code,
> and here I'm renaming it to show what it does exactly.
>
> But I don't have any preference here, so I can squash this patch
> into 1/6 on respin, if you prefer.
+1 for squashing
Thomas
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-04 14:00 ` [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error Igor Mammedov
2017-09-04 15:15 ` Philippe Mathieu-Daudé
@ 2017-09-05 5:41 ` Thomas Huth
2017-09-05 11:22 ` Eduardo Habkost
2017-09-11 14:51 ` Igor Mammedov
2017-09-05 20:19 ` Eduardo Habkost
2 siblings, 2 replies; 37+ messages in thread
From: Thomas Huth @ 2017-09-05 5:41 UTC (permalink / raw)
To: Igor Mammedov, qemu-devel
Cc: Eduardo Habkost, Andrew Jones, Richard Henderson, Jan Kiszka,
Peter Maydell, Andrzej Zaborowski, Michael Walle, Thomas Huth,
Aurelien Jarno, Yongbok Kim, Hervé Poussineau,
Anthony Green, Jia Liu, Stafford Horne, Alexander Graf,
David Gibson, Edgar E. Iglesias, Magnus Damm, Fabien Chouteau,
Mark Cave-Ayland, Artyom Tarasenko, Bastian Koppelmann,
Guan Xuetao, Max Filippov, Riku Voipio, Laurent Vivier
On 04.09.2017 16:00, Igor Mammedov wrote:
> Almost every user of cpu_generic_init() checks for
> returned NULL and then reports failure in a custom way
> and aborts process.
> Some users assume that call can't fail and don't check
> for failure, though they should have checked for it.
>
> In either cases cpu_generic_init() failure is fatal,
> so instead of checking for failure and reporting
> it various ways, make cpu_generic_init() report
> errors in consistent way and terminate QEMU on failure.
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
> Even though it's tree wide change, it's trivial so all
> affected call sites are included within one patch.
[...]
> diff --git a/qom/cpu.c b/qom/cpu.c
> index d715890..307d638 100644
> --- a/qom/cpu.c
> +++ b/qom/cpu.c
> @@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
> if (err != NULL) {
> error_report_err(err);
> object_unref(OBJECT(cpu));
> - return NULL;
> + exit(EXIT_FAILURE);
> }
> return cpu;
> }
> @@ -78,8 +78,9 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
>
> oc = cpu_class_by_name(typename, model_pieces[0]);
> if (oc == NULL) {
> + error_report("unable to find CPU model '%s'", model_pieces[0]);
> g_strfreev(model_pieces);
> - return NULL;
> + exit(EXIT_FAILURE);
> }
>
> cpu_type = object_class_get_name(oc);
> @@ -88,7 +89,7 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> g_strfreev(model_pieces);
> if (err != NULL) {
> error_report_err(err);
> - return NULL;
> + exit(EXIT_FAILURE);
> }
> return cpu_type;
> }
> @@ -100,10 +101,8 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> */
> const char *cpu_type = cpu_parse_features(typename, cpu_model);
>
> - if (cpu_type) {
> - return cpu_create(cpu_type);
> - }
> - return NULL;
> + assert(cpu_type);
> + return cpu_create(cpu_type);
> }
Not sure, but wouldn't it be better to do the error reporting and exit
in cpu_generic_init() instead? In case we ever might want to re-use the
create and parse_feature functions for device_add later (?), and then
the functions must not exit directly anymore...
Thomas
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-05 5:41 ` Thomas Huth
@ 2017-09-05 11:22 ` Eduardo Habkost
2017-09-11 14:51 ` Igor Mammedov
1 sibling, 0 replies; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-05 11:22 UTC (permalink / raw)
To: Thomas Huth
Cc: Igor Mammedov, qemu-devel, Andrew Jones, Richard Henderson,
Jan Kiszka, Peter Maydell, Andrzej Zaborowski, Michael Walle,
Aurelien Jarno, Yongbok Kim, Hervé Poussineau,
Anthony Green, Jia Liu, Stafford Horne, Alexander Graf,
David Gibson, Edgar E. Iglesias, Magnus Damm, Fabien Chouteau,
Mark Cave-Ayland, Artyom Tarasenko, Bastian Koppelmann,
Guan Xuetao, Max Filippov, Riku Voipio, Laurent Vivier
On Tue, Sep 05, 2017 at 07:41:51AM +0200, Thomas Huth wrote:
> On 04.09.2017 16:00, Igor Mammedov wrote:
> > Almost every user of cpu_generic_init() checks for
> > returned NULL and then reports failure in a custom way
> > and aborts process.
> > Some users assume that call can't fail and don't check
> > for failure, though they should have checked for it.
> >
> > In either cases cpu_generic_init() failure is fatal,
> > so instead of checking for failure and reporting
> > it various ways, make cpu_generic_init() report
> > errors in consistent way and terminate QEMU on failure.
> >
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > ---
> > Even though it's tree wide change, it's trivial so all
> > affected call sites are included within one patch.
> [...]
> > diff --git a/qom/cpu.c b/qom/cpu.c
> > index d715890..307d638 100644
> > --- a/qom/cpu.c
> > +++ b/qom/cpu.c
> > @@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
> > if (err != NULL) {
> > error_report_err(err);
> > object_unref(OBJECT(cpu));
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> > return cpu;
> > }
> > @@ -78,8 +78,9 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> >
> > oc = cpu_class_by_name(typename, model_pieces[0]);
> > if (oc == NULL) {
> > + error_report("unable to find CPU model '%s'", model_pieces[0]);
> > g_strfreev(model_pieces);
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> >
> > cpu_type = object_class_get_name(oc);
> > @@ -88,7 +89,7 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> > g_strfreev(model_pieces);
> > if (err != NULL) {
> > error_report_err(err);
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> > return cpu_type;
> > }
> > @@ -100,10 +101,8 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> > */
> > const char *cpu_type = cpu_parse_features(typename, cpu_model);
> >
> > - if (cpu_type) {
> > - return cpu_create(cpu_type);
> > - }
> > - return NULL;
> > + assert(cpu_type);
> > + return cpu_create(cpu_type);
> > }
>
> Not sure, but wouldn't it be better to do the error reporting and exit
> in cpu_generic_init() instead? In case we ever might want to re-use the
> create and parse_feature functions for device_add later (?), and then
> the functions must not exit directly anymore...
I would prefer that, but note that in that case
cpu_parse_features() shouldn't leave any global property
registered if an error is reported. It would need to validate
all the input before registering any properties, or rollback the
global properties it already registered when reporting an error.
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-04 14:00 ` [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error Igor Mammedov
2017-09-04 15:15 ` Philippe Mathieu-Daudé
2017-09-05 5:41 ` Thomas Huth
@ 2017-09-05 20:19 ` Eduardo Habkost
2017-09-11 14:23 ` Igor Mammedov
2 siblings, 1 reply; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-05 20:19 UTC (permalink / raw)
To: Igor Mammedov
Cc: qemu-devel, Peter Maydell, Anthony Green, Mark Cave-Ayland,
Max Filippov, Edgar E. Iglesias, Guan Xuetao, Jia Liu,
Magnus Damm, Alexander Graf, Hervé Poussineau,
Richard Henderson, Artyom Tarasenko, Andrew Jones, Riku Voipio,
Fabien Chouteau, Jan Kiszka, Yongbok Kim, Stafford Horne,
David Gibson, Thomas Huth, Bastian Koppelmann, Laurent Vivier,
Michael Walle, Aurelien Jarno
On Mon, Sep 04, 2017 at 04:00:58PM +0200, Igor Mammedov wrote:
> Almost every user of cpu_generic_init() checks for
> returned NULL and then reports failure in a custom way
> and aborts process.
> Some users assume that call can't fail and don't check
> for failure, though they should have checked for it.
>
> In either cases cpu_generic_init() failure is fatal,
> so instead of checking for failure and reporting
> it various ways, make cpu_generic_init() report
> errors in consistent way and terminate QEMU on failure.
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
> Even though it's tree wide change, it's trivial so all
> affected call sites are included within one patch.
>
[...]
> diff --git a/qom/cpu.c b/qom/cpu.c
> index d715890..307d638 100644
> --- a/qom/cpu.c
> +++ b/qom/cpu.c
> @@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
> if (err != NULL) {
> error_report_err(err);
> object_unref(OBJECT(cpu));
> - return NULL;
> + exit(EXIT_FAILURE);
Isn't it simpler to use &error_fatal?
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-04 14:01 ` [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly Igor Mammedov
@ 2017-09-05 21:31 ` Eduardo Habkost
2017-09-05 21:47 ` Alistair Francis
2017-09-12 12:11 ` Igor Mammedov
0 siblings, 2 replies; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-05 21:31 UTC (permalink / raw)
To: Igor Mammedov
Cc: qemu-devel, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Mon, Sep 04, 2017 at 04:01:02PM +0200, Igor Mammedov wrote:
> there are 2 use cases to deal with:
> 1: fixed CPU models per board/soc
> 2: boards with user configurable cpu_model and fallback to
> default cpu_model if user hasn't specified one explicitly
>
> For the 1st
> drop intermediate cpu_model parsing and use const cpu type
> directly, which replaces:
> typename = object_class_get_name(
> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> object_new(typename)
> with
> object_new(FOO_CPU_TYPE_NAME)
> or
> cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
> with
> cpu_create(FOO_CPU_TYPE_NAME)
>
> as result 1st use case doesn't have to invoke not necessary
> translation and not needed code is removed.
>
> For the 2nd
> 1: set default cpu type with MachineClass::default_cpu_type and
> 2: use generic cpu_model parsing that done before machine_init()
> is run and:
> 2.1: drop custom cpu_model parsing where pattern is:
> typename = object_class_get_name(
> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> [parse_features(typename, cpu_model, &err) ]
>
> 2.2: or replace cpu_generic_init() which does what
> 2.1 does + create_cpu(typename) with just
> create_cpu(machine->cpu_type)
> as result cpu_name -> cpu_type translation is done using
> generic machine code one including parsing optional features
> if supported/present (removes a bunch of duplicated cpu_model
> parsing code) and default cpu type is defined in an uniform way
> within machine_class_init callbacks instead of adhoc places
> in boadr's machine_init code.
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
> CC: Peter Maydell <peter.maydell@linaro.org>
> CC: Igor Mitsyanko <i.mitsyanko@gmail.com>
> CC: Rob Herring <robh@kernel.org>
> CC: Andrzej Zaborowski <balrogg@gmail.com>
> CC: Jan Kiszka <jan.kiszka@web.de>
> CC: Alistair Francis <alistair@alistair23.me>
> CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
> CC: qemu-arm@nongnu.org
> ---
> include/hw/arm/armv7m.h | 2 +-
> include/hw/arm/aspeed_soc.h | 2 +-
> include/hw/arm/stm32f205_soc.h | 2 +-
> target/arm/cpu.h | 3 +++
> hw/arm/armv7m.c | 40 +++++-------------------------------
> hw/arm/aspeed_soc.c | 13 +++++-------
> hw/arm/collie.c | 10 +++------
> hw/arm/exynos4210.c | 6 +-----
> hw/arm/gumstix.c | 5 +++--
> hw/arm/highbank.c | 10 ++++-----
> hw/arm/integratorcp.c | 30 ++-------------------------
> hw/arm/mainstone.c | 9 ++++-----
> hw/arm/mps2.c | 17 +++++++---------
> hw/arm/musicpal.c | 7 ++-----
> hw/arm/netduino2.c | 2 +-
> hw/arm/nseries.c | 4 +++-
> hw/arm/omap1.c | 7 ++-----
> hw/arm/omap2.c | 4 ++--
> hw/arm/omap_sx1.c | 5 ++++-
> hw/arm/palm.c | 5 +++--
> hw/arm/pxa2xx.c | 10 ++++-----
> hw/arm/realview.c | 25 +++++------------------
> hw/arm/spitz.c | 12 ++++++-----
> hw/arm/stellaris.c | 16 +++++++--------
> hw/arm/stm32f205_soc.c | 4 ++--
> hw/arm/strongarm.c | 10 +++------
> hw/arm/tosa.c | 4 ----
> hw/arm/versatilepb.c | 15 +++-----------
> hw/arm/vexpress.c | 32 +++++++++--------------------
> hw/arm/virt.c | 46 +++++++++---------------------------------
> hw/arm/xilinx_zynq.c | 10 ++-------
> hw/arm/z2.c | 9 +++------
> target/arm/cpu.c | 2 +-
> 33 files changed, 114 insertions(+), 264 deletions(-)
>
> diff --git a/include/hw/arm/armv7m.h b/include/hw/arm/armv7m.h
> index a9b3f2a..8496743 100644
> --- a/include/hw/arm/armv7m.h
> +++ b/include/hw/arm/armv7m.h
> @@ -55,7 +55,7 @@ typedef struct ARMv7MState {
> MemoryRegion container;
>
> /* Properties */
> - char *cpu_model;
> + char *cpu_type;
> /* MemoryRegion the board provides to us (with its devices, RAM, etc) */
> MemoryRegion *board_memory;
> } ARMv7MState;
> diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
> index 0b88baa..f26914a 100644
> --- a/include/hw/arm/aspeed_soc.h
> +++ b/include/hw/arm/aspeed_soc.h
> @@ -49,7 +49,7 @@ typedef struct AspeedSoCState {
>
> typedef struct AspeedSoCInfo {
> const char *name;
> - const char *cpu_model;
> + const char *cpu_type;
> uint32_t silicon_rev;
> hwaddr sdram_base;
> uint64_t sram_size;
> diff --git a/include/hw/arm/stm32f205_soc.h b/include/hw/arm/stm32f205_soc.h
> index e2dce11..922a733 100644
> --- a/include/hw/arm/stm32f205_soc.h
> +++ b/include/hw/arm/stm32f205_soc.h
> @@ -52,7 +52,7 @@ typedef struct STM32F205State {
> SysBusDevice parent_obj;
> /*< public >*/
>
> - char *cpu_model;
> + char *cpu_type;
>
> ARMv7MState armv7m;
>
> diff --git a/target/arm/cpu.h b/target/arm/cpu.h
> index 5932ef1..3e1ba19 100644
> --- a/target/arm/cpu.h
> +++ b/target/arm/cpu.h
> @@ -2002,6 +2002,9 @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx,
>
> #define cpu_init(cpu_model) cpu_generic_init(TYPE_ARM_CPU, cpu_model)
>
> +#define ARM_CPU_TYPE_SUFFIX "-" TYPE_ARM_CPU
> +#define ARM_CPU_TYPE_NAME(name) (name ARM_CPU_TYPE_SUFFIX)
> +
> #define cpu_signal_handler cpu_arm_signal_handler
> #define cpu_list arm_cpu_list
>
> diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c
> index c8a11f2..9c45f26 100644
> --- a/hw/arm/armv7m.c
> +++ b/hw/arm/armv7m.c
> @@ -163,10 +163,6 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
> SysBusDevice *sbd;
> Error *err = NULL;
> int i;
> - char **cpustr;
> - ObjectClass *oc;
> - const char *typename;
> - CPUClass *cc;
>
> if (!s->board_memory) {
> error_setg(errp, "memory property was not set");
> @@ -175,29 +171,7 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
>
> memory_region_add_subregion_overlap(&s->container, 0, s->board_memory, -1);
>
> - cpustr = g_strsplit(s->cpu_model, ",", 2);
> -
> - oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
> - if (!oc) {
> - error_setg(errp, "Unknown CPU model %s", cpustr[0]);
> - g_strfreev(cpustr);
> - return;
> - }
> -
> - cc = CPU_CLASS(oc);
> - typename = object_class_get_name(oc);
> - cc->parse_features(typename, cpustr[1], &err);
> - g_strfreev(cpustr);
> - if (err) {
> - error_propagate(errp, err);
> - return;
> - }
> -
> - s->cpu = ARM_CPU(object_new(typename));
> - if (!s->cpu) {
> - error_setg(errp, "Unknown CPU model %s", s->cpu_model);
> - return;
> - }
> + s->cpu = ARM_CPU(object_new(s->cpu_type));
Nice.
>
> object_property_set_link(OBJECT(s->cpu), OBJECT(&s->container), "memory",
> &error_abort);
> @@ -253,7 +227,7 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
> }
>
> static Property armv7m_properties[] = {
> - DEFINE_PROP_STRING("cpu-model", ARMv7MState, cpu_model),
> + DEFINE_PROP_STRING("cpu-type", ARMv7MState, cpu_type),
Are we 100% sure the cpu-model property is never manually set by
users?
> DEFINE_PROP_END_OF_LIST(),
> };
>
> @@ -285,20 +259,16 @@ static void armv7m_reset(void *opaque)
> Returns the ARMv7M device. */
>
> DeviceState *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
> - const char *kernel_filename, const char *cpu_model)
> + const char *kernel_filename, const char *cpu_type)
> {
> DeviceState *armv7m;
>
> - if (cpu_model == NULL) {
> - cpu_model = "cortex-m3";
> - }
> -
I was going to suggest doing the default_cpu_type stuff in a
separate patch, but it might require touching those lines twice.
So I guess this is OK.
> armv7m = qdev_create(NULL, "armv7m");
> qdev_prop_set_uint32(armv7m, "num-irq", num_irq);
> - qdev_prop_set_string(armv7m, "cpu-model", cpu_model);
> + qdev_prop_set_string(armv7m, "cpu-type", cpu_type);
> object_property_set_link(OBJECT(armv7m), OBJECT(get_system_memory()),
> "memory", &error_abort);
> - /* This will exit with an error if the user passed us a bad cpu_model */
> + /* This will exit with an error if the user passed us a bad cpu_type */
> qdev_init_nofail(armv7m);
>
> armv7m_load_kernel(ARM_CPU(first_cpu), kernel_filename, mem_size);
> diff --git a/hw/arm/aspeed_soc.c b/hw/arm/aspeed_soc.c
> index 5529024..cd7bb94 100644
> --- a/hw/arm/aspeed_soc.c
> +++ b/hw/arm/aspeed_soc.c
> @@ -54,7 +54,7 @@ static const char *aspeed_soc_ast2500_typenames[] = {
> static const AspeedSoCInfo aspeed_socs[] = {
> {
> .name = "ast2400-a0",
> - .cpu_model = "arm926",
> + .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
> .silicon_rev = AST2400_A0_SILICON_REV,
> .sdram_base = AST2400_SDRAM_BASE,
> .sram_size = 0x8000,
> @@ -65,7 +65,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
> .wdts_num = 2,
> }, {
> .name = "ast2400-a1",
> - .cpu_model = "arm926",
> + .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
> .silicon_rev = AST2400_A1_SILICON_REV,
> .sdram_base = AST2400_SDRAM_BASE,
> .sram_size = 0x8000,
> @@ -76,7 +76,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
> .wdts_num = 2,
> }, {
> .name = "ast2400",
> - .cpu_model = "arm926",
> + .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
> .silicon_rev = AST2400_A0_SILICON_REV,
> .sdram_base = AST2400_SDRAM_BASE,
> .sram_size = 0x8000,
> @@ -87,7 +87,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
> .wdts_num = 2,
> }, {
> .name = "ast2500-a1",
> - .cpu_model = "arm1176",
> + .cpu_type = ARM_CPU_TYPE_NAME("arm1176"),
> .silicon_rev = AST2500_A1_SILICON_REV,
> .sdram_base = AST2500_SDRAM_BASE,
> .sram_size = 0x9000,
> @@ -128,13 +128,10 @@ static void aspeed_soc_init(Object *obj)
> {
> AspeedSoCState *s = ASPEED_SOC(obj);
> AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
> - char *cpu_typename;
> int i;
>
> - cpu_typename = g_strdup_printf("%s-" TYPE_ARM_CPU, sc->info->cpu_model);
> - object_initialize(&s->cpu, sizeof(s->cpu), cpu_typename);
> + object_initialize(&s->cpu, sizeof(s->cpu), sc->info->cpu_type);
> object_property_add_child(obj, "cpu", OBJECT(&s->cpu), NULL);
> - g_free(cpu_typename);
>
Nice.
> object_initialize(&s->vic, sizeof(s->vic), TYPE_ASPEED_VIC);
> object_property_add_child(obj, "vic", OBJECT(&s->vic), NULL);
> diff --git a/hw/arm/collie.c b/hw/arm/collie.c
> index 2e69531..f043cd8 100644
> --- a/hw/arm/collie.c
> +++ b/hw/arm/collie.c
> @@ -18,7 +18,7 @@
> #include "hw/block/flash.h"
> #include "sysemu/block-backend.h"
> #include "exec/address-spaces.h"
> -#include "qom/cpu.h"
> +#include "cpu.h"
>
> static struct arm_boot_info collie_binfo = {
> .loader_start = SA_SDCS0,
> @@ -27,7 +27,6 @@ static struct arm_boot_info collie_binfo = {
>
> static void collie_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> @@ -35,11 +34,7 @@ static void collie_init(MachineState *machine)
> DriveInfo *dinfo;
> MemoryRegion *sysmem = get_system_memory();
>
> - if (!cpu_model) {
> - cpu_model = "sa1110";
> - }
> -
> - s = sa1110_init(sysmem, collie_binfo.ram_size, cpu_model);
> + s = sa1110_init(sysmem, collie_binfo.ram_size, machine->cpu_type);
>
> dinfo = drive_get(IF_PFLASH, 0, 0);
> pflash_cfi01_register(SA_CS0, NULL, "collie.fl1", 0x02000000,
> @@ -64,6 +59,7 @@ static void collie_machine_init(MachineClass *mc)
> {
> mc->desc = "Sharp SL-5500 (Collie) PDA (SA-1110)";
> mc->init = collie_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("sa1110");
> }
>
> DEFINE_MACHINE("collie", collie_machine_init)
> diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
> index f9e79f3..81f12e3 100644
> --- a/hw/arm/exynos4210.c
> +++ b/hw/arm/exynos4210.c
> @@ -169,15 +169,11 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem)
> Exynos4210State *s = g_new(Exynos4210State, 1);
> qemu_irq gate_irq[EXYNOS4210_NCPUS][EXYNOS4210_IRQ_GATE_NINPUTS];
> SysBusDevice *busdev;
> - ObjectClass *cpu_oc;
> DeviceState *dev;
> int i, n;
>
> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, "cortex-a9");
> - assert(cpu_oc);
> -
> for (n = 0; n < EXYNOS4210_NCPUS; n++) {
> - Object *cpuobj = object_new(object_class_get_name(cpu_oc));
> + Object *cpuobj = object_new(ARM_CPU_TYPE_NAME("cortex-a9"));
>
> /* By default A9 CPUs have EL3 enabled. This board does not currently
> * support EL3 so the CPU EL3 property is disabled before realization.
> diff --git a/hw/arm/gumstix.c b/hw/arm/gumstix.c
> index d59d9ba..2b66bb7 100644
> --- a/hw/arm/gumstix.c
> +++ b/hw/arm/gumstix.c
> @@ -44,6 +44,7 @@
> #include "sysemu/block-backend.h"
> #include "exec/address-spaces.h"
> #include "sysemu/qtest.h"
> +#include "cpu.h"
>
> static const int sector_len = 128 * 1024;
>
> @@ -86,7 +87,6 @@ static void connex_init(MachineState *machine)
>
> static void verdex_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> PXA2xxState *cpu;
> DriveInfo *dinfo;
> int be;
> @@ -95,7 +95,7 @@ static void verdex_init(MachineState *machine)
> uint32_t verdex_rom = 0x02000000;
> uint32_t verdex_ram = 0x10000000;
>
> - cpu = pxa270_init(address_space_mem, verdex_ram, cpu_model ?: "pxa270-c0");
> + cpu = pxa270_init(address_space_mem, verdex_ram, machine->cpu_type);
>
> dinfo = drive_get(IF_PFLASH, 0, 0);
> if (!dinfo && !qtest_enabled()) {
> @@ -142,6 +142,7 @@ static void verdex_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "Gumstix Verdex (PXA270)";
> mc->init = verdex_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
> }
>
> static const TypeInfo verdex_type = {
> diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
> index 20e60f1..0d7190a 100644
> --- a/hw/arm/highbank.c
> +++ b/hw/arm/highbank.c
> @@ -219,7 +219,6 @@ enum cxmachines {
> static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
> {
> ram_addr_t ram_size = machine->ram_size;
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> @@ -236,19 +235,20 @@ static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
>
> switch (machine_id) {
> case CALXEDA_HIGHBANK:
> - cpu_model = "cortex-a9";
> + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
> break;
> case CALXEDA_MIDWAY:
> - cpu_model = "cortex-a15";
> + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
> break;
> + default:
> + assert(0);
> }
Why not delete this switch statement completely and set
default_cpu_type at midway_class_init() and
highbank_class_init()?
>
> for (n = 0; n < smp_cpus; n++) {
> - ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
> Object *cpuobj;
> ARMCPU *cpu;
>
> - cpuobj = object_new(object_class_get_name(oc));
> + cpuobj = object_new(machine->cpu_type);
> cpu = ARM_CPU(cpuobj);
>
> object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
> diff --git a/hw/arm/integratorcp.c b/hw/arm/integratorcp.c
> index d9530ed..44d247e 100644
> --- a/hw/arm/integratorcp.c
> +++ b/hw/arm/integratorcp.c
> @@ -572,46 +572,19 @@ static struct arm_boot_info integrator_binfo = {
> static void integratorcp_init(MachineState *machine)
> {
> ram_addr_t ram_size = machine->ram_size;
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> - char **cpustr;
> - ObjectClass *cpu_oc;
> - CPUClass *cc;
> Object *cpuobj;
> ARMCPU *cpu;
> - const char *typename;
> MemoryRegion *address_space_mem = get_system_memory();
> MemoryRegion *ram = g_new(MemoryRegion, 1);
> MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
> qemu_irq pic[32];
> DeviceState *dev, *sic, *icp;
> int i;
> - Error *err = NULL;
>
> - if (!cpu_model) {
> - cpu_model = "arm926";
> - }
> -
> - cpustr = g_strsplit(cpu_model, ",", 2);
> -
> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
> - if (!cpu_oc) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> - typename = object_class_get_name(cpu_oc);
> -
> - cc = CPU_CLASS(cpu_oc);
> - cc->parse_features(typename, cpustr[1], &err);
> - g_strfreev(cpustr);
> - if (err) {
> - error_report_err(err);
> - exit(1);
> - }
> -
> - cpuobj = object_new(typename);
> + cpuobj = object_new(machine->cpu_type);
Nice.
>
> /* By default ARM1176 CPUs have EL3 enabled. This board does not
> * currently support EL3 so the CPU EL3 property is disabled before
> @@ -681,6 +654,7 @@ static void integratorcp_machine_init(MachineClass *mc)
> {
> mc->desc = "ARM Integrator/CP (ARM926EJ-S)";
> mc->init = integratorcp_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
> }
>
> DEFINE_MACHINE("integratorcp", integratorcp_machine_init)
> diff --git a/hw/arm/mainstone.c b/hw/arm/mainstone.c
> index fb268e6..2b13d30 100644
> --- a/hw/arm/mainstone.c
> +++ b/hw/arm/mainstone.c
> @@ -24,6 +24,7 @@
> #include "hw/sysbus.h"
> #include "exec/address-spaces.h"
> #include "sysemu/qtest.h"
> +#include "cpu.h"
>
> /* Device addresses */
> #define MST_FPGA_PHYS 0x08000000
> @@ -121,13 +122,10 @@ static void mainstone_common_init(MemoryRegion *address_space_mem,
> int i;
> int be;
> MemoryRegion *rom = g_new(MemoryRegion, 1);
> - const char *cpu_model = machine->cpu_model;
> -
> - if (!cpu_model)
> - cpu_model = "pxa270-c5";
>
> /* Setup CPU & memory */
> - mpu = pxa270_init(address_space_mem, mainstone_binfo.ram_size, cpu_model);
> + mpu = pxa270_init(address_space_mem, mainstone_binfo.ram_size,
> + machine->cpu_type);
> memory_region_init_ram(rom, NULL, "mainstone.rom", MAINSTONE_ROM,
> &error_fatal);
> memory_region_set_readonly(rom, true);
> @@ -196,6 +194,7 @@ static void mainstone2_machine_init(MachineClass *mc)
> {
> mc->desc = "Mainstone II (PXA27x)";
> mc->init = mainstone_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
> }
>
> DEFINE_MACHINE("mainstone", mainstone2_machine_init)
> diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
> index abb0ab6..aeaad80 100644
> --- a/hw/arm/mps2.c
> +++ b/hw/arm/mps2.c
> @@ -46,7 +46,6 @@ typedef enum MPS2FPGAType {
> typedef struct {
> MachineClass parent;
> MPS2FPGAType fpga_type;
> - const char *cpu_model;
> uint32_t scc_id;
> } MPS2MachineClass;
>
> @@ -107,14 +106,12 @@ static void mps2_common_init(MachineState *machine)
> MPS2MachineState *mms = MPS2_MACHINE(machine);
> MPS2MachineClass *mmc = MPS2_MACHINE_GET_CLASS(machine);
> MemoryRegion *system_memory = get_system_memory();
> + MachineClass *mc = MACHINE_GET_CLASS(machine);
> DeviceState *armv7m, *sccdev;
>
> - if (!machine->cpu_model) {
> - machine->cpu_model = mmc->cpu_model;
> - }
> -
> - if (strcmp(machine->cpu_model, mmc->cpu_model) != 0) {
> - error_report("This board can only be used with CPU %s", mmc->cpu_model);
> + if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
> + error_report("This board can only be used with CPU %s",
> + mc->default_cpu_type);
Suggestion for later: a generic mechanism to let the machine
class validate the CPU type this way. Maybe a
MachineClass::configurable_cpu_type=false field?
> exit(1);
> }
>
> @@ -188,7 +185,7 @@ static void mps2_common_init(MachineState *machine)
> default:
> g_assert_not_reached();
> }
> - qdev_prop_set_string(armv7m, "cpu-model", machine->cpu_model);
> + qdev_prop_set_string(armv7m, "cpu-type", machine->cpu_type);
> object_property_set_link(OBJECT(&mms->armv7m), OBJECT(system_memory),
> "memory", &error_abort);
> object_property_set_bool(OBJECT(&mms->armv7m), true, "realized",
> @@ -339,7 +336,7 @@ static void mps2_an385_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "ARM MPS2 with AN385 FPGA image for Cortex-M3";
> mmc->fpga_type = FPGA_AN385;
> - mmc->cpu_model = "cortex-m3";
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
> mmc->scc_id = 0x41040000 | (385 << 4);
> }
>
> @@ -350,7 +347,7 @@ static void mps2_an511_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "ARM MPS2 with AN511 DesignStart FPGA image for Cortex-M3";
> mmc->fpga_type = FPGA_AN511;
> - mmc->cpu_model = "cortex-m3";
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
> mmc->scc_id = 0x4104000 | (511 << 4);
> }
>
> diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
> index 64c8e09..9b2000d 100644
> --- a/hw/arm/musicpal.c
> +++ b/hw/arm/musicpal.c
> @@ -1570,7 +1570,6 @@ static struct arm_boot_info musicpal_binfo = {
>
> static void musicpal_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> @@ -1590,10 +1589,7 @@ static void musicpal_init(MachineState *machine)
> MemoryRegion *ram = g_new(MemoryRegion, 1);
> MemoryRegion *sram = g_new(MemoryRegion, 1);
>
> - if (!cpu_model) {
> - cpu_model = "arm926";
> - }
> - cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, cpu_model));
> + cpu = ARM_CPU(cpu_create(machine->cpu_type));
>
> /* For now we use a fixed - the original - RAM size */
> memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",
> @@ -1714,6 +1710,7 @@ static void musicpal_machine_init(MachineClass *mc)
> {
> mc->desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)";
> mc->init = musicpal_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
> }
>
> DEFINE_MACHINE("musicpal", musicpal_machine_init)
> diff --git a/hw/arm/netduino2.c b/hw/arm/netduino2.c
> index 3cfe332..4790824 100644
> --- a/hw/arm/netduino2.c
> +++ b/hw/arm/netduino2.c
> @@ -34,7 +34,7 @@ static void netduino2_init(MachineState *machine)
> DeviceState *dev;
>
> dev = qdev_create(NULL, TYPE_STM32F205_SOC);
> - qdev_prop_set_string(dev, "cpu-model", "cortex-m3");
> + qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m3"));
> object_property_set_bool(OBJECT(dev), true, "realized", &error_fatal);
>
> armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
> diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
> index 503a3b6..b41850e 100644
> --- a/hw/arm/nseries.c
> +++ b/hw/arm/nseries.c
> @@ -1310,7 +1310,7 @@ static void n8x0_init(MachineState *machine,
> struct n800_s *s = (struct n800_s *) g_malloc0(sizeof(*s));
> int sdram_size = binfo->ram_size;
>
> - s->mpu = omap2420_mpu_init(sysmem, sdram_size, machine->cpu_model);
> + s->mpu = omap2420_mpu_init(sysmem, sdram_size, machine->cpu_type);
>
> /* Setup peripherals
> *
> @@ -1425,6 +1425,7 @@ static void n800_class_init(ObjectClass *oc, void *data)
> mc->desc = "Nokia N800 tablet aka. RX-34 (OMAP2420)";
> mc->init = n800_init;
> mc->default_boot_order = "";
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2");
> }
>
> static const TypeInfo n800_type = {
> @@ -1440,6 +1441,7 @@ static void n810_class_init(ObjectClass *oc, void *data)
> mc->desc = "Nokia N810 tablet aka. RX-44 (OMAP2420)";
> mc->init = n810_init;
> mc->default_boot_order = "";
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2");
> }
>
> static const TypeInfo n810_type = {
> diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
> index 04e65ce..b3e7625 100644
> --- a/hw/arm/omap1.c
> +++ b/hw/arm/omap1.c
> @@ -3850,7 +3850,7 @@ static int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s,
>
> struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
> unsigned long sdram_size,
> - const char *core)
> + const char *cpu_type)
> {
> int i;
> struct omap_mpu_state_s *s = g_new0(struct omap_mpu_state_s, 1);
> @@ -3858,12 +3858,9 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
> DriveInfo *dinfo;
> SysBusDevice *busdev;
>
> - if (!core)
> - core = "ti925t";
> -
> /* Core */
> s->mpu_model = omap310;
> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core));
> + s->cpu = ARM_CPU(cpu_create(cpu_type));
> s->sdram_size = sdram_size;
> s->sram_size = OMAP15XX_SRAM_SIZE;
>
> diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
> index 5821477..3f6076e 100644
> --- a/hw/arm/omap2.c
> +++ b/hw/arm/omap2.c
> @@ -2250,7 +2250,7 @@ static const struct dma_irq_map omap2_dma_irq_map[] = {
>
> struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
> unsigned long sdram_size,
> - const char *core)
> + const char *cpu_type)
> {
> struct omap_mpu_state_s *s = g_new0(struct omap_mpu_state_s, 1);
> qemu_irq dma_irqs[4];
> @@ -2261,7 +2261,7 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
>
> /* Core */
> s->mpu_model = omap2420;
> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core ?: "arm1136-r2"));
> + s->cpu = ARM_CPU(cpu_create(cpu_type));
> s->sdram_size = sdram_size;
> s->sram_size = OMAP242X_SRAM_SIZE;
>
> diff --git a/hw/arm/omap_sx1.c b/hw/arm/omap_sx1.c
> index 9809106..1236ec1 100644
> --- a/hw/arm/omap_sx1.c
> +++ b/hw/arm/omap_sx1.c
> @@ -36,6 +36,7 @@
> #include "sysemu/block-backend.h"
> #include "sysemu/qtest.h"
> #include "exec/address-spaces.h"
> +#include "cpu.h"
>
> /*****************************************************************************/
> /* Siemens SX1 Cellphone V1 */
> @@ -120,7 +121,7 @@ static void sx1_init(MachineState *machine, const int version)
> }
>
> mpu = omap310_mpu_init(address_space, sx1_binfo.ram_size,
> - machine->cpu_model);
> + machine->cpu_type);
>
> /* External Flash (EMIFS) */
> memory_region_init_ram(flash, NULL, "omap_sx1.flash0-0", flash_size,
> @@ -223,6 +224,7 @@ static void sx1_machine_v2_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "Siemens SX1 (OMAP310) V2";
> mc->init = sx1_init_v2;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
> }
>
> static const TypeInfo sx1_machine_v2_type = {
> @@ -237,6 +239,7 @@ static void sx1_machine_v1_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "Siemens SX1 (OMAP310) V1";
> mc->init = sx1_init_v1;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
> }
>
> static const TypeInfo sx1_machine_v1_type = {
> diff --git a/hw/arm/palm.c b/hw/arm/palm.c
> index 64cf8ca..862f048 100644
> --- a/hw/arm/palm.c
> +++ b/hw/arm/palm.c
> @@ -29,6 +29,7 @@
> #include "hw/devices.h"
> #include "hw/loader.h"
> #include "exec/address-spaces.h"
> +#include "cpu.h"
>
> static uint32_t static_readb(void *opaque, hwaddr offset)
> {
> @@ -195,7 +196,6 @@ static struct arm_boot_info palmte_binfo = {
>
> static void palmte_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> @@ -211,7 +211,7 @@ static void palmte_init(MachineState *machine)
> MemoryRegion *flash = g_new(MemoryRegion, 1);
> MemoryRegion *cs = g_new(MemoryRegion, 4);
>
> - mpu = omap310_mpu_init(address_space_mem, sdram_size, cpu_model);
> + mpu = omap310_mpu_init(address_space_mem, sdram_size, machine->cpu_type);
>
> /* External Flash (EMIFS) */
> memory_region_init_ram(flash, NULL, "palmte.flash", flash_size,
> @@ -274,6 +274,7 @@ static void palmte_machine_init(MachineClass *mc)
> {
> mc->desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)";
> mc->init = palmte_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
> }
>
> DEFINE_MACHINE("cheetah", palmte_machine_init)
> diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
> index c16657d..79b317a 100644
> --- a/hw/arm/pxa2xx.c
> +++ b/hw/arm/pxa2xx.c
> @@ -2052,21 +2052,19 @@ static void pxa2xx_reset(void *opaque, int line, int level)
>
> /* Initialise a PXA270 integrated chip (ARM based core). */
> PXA2xxState *pxa270_init(MemoryRegion *address_space,
> - unsigned int sdram_size, const char *revision)
> + unsigned int sdram_size, const char *cpu_type)
> {
> PXA2xxState *s;
> int i;
> DriveInfo *dinfo;
> s = g_new0(PXA2xxState, 1);
>
> - if (revision && strncmp(revision, "pxa27", 5)) {
> + if (strncmp(cpu_type, ARM_CPU_TYPE_NAME("pxa27"), 5)) {
Why are you using ARM_CPU_TYPE_NAME here, if you are only
checking if cpu_type starts with "pxa27"?
I suggest adding a TODO here noting that we implement this using
either a TYPE_ARM_PXA27 subclass (so we can use
object_class_dynamic_cast()), or a ARMCPUClass field to identify
if the CPU is pxa27.
> fprintf(stderr, "Machine requires a PXA27x processor.\n");
> exit(1);
> }
This would be another use case for a generic CPU model validation
mechanism in MachineClass.
> - if (!revision)
> - revision = "pxa270";
>
> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, revision));
> + s->cpu = ARM_CPU(cpu_create(cpu_type));
> s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
>
> /* SDRAM & Internal Memory Storage */
> @@ -2192,7 +2190,7 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
>
> s = g_new0(PXA2xxState, 1);
>
> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, "pxa255"));
> + s->cpu = ARM_CPU(cpu_create(ARM_CPU_TYPE_NAME("pxa255")));
> s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
>
> /* SDRAM & Internal Memory Storage */
> diff --git a/hw/arm/realview.c b/hw/arm/realview.c
> index 76ff557..38e3278 100644
> --- a/hw/arm/realview.c
> +++ b/hw/arm/realview.c
> @@ -55,7 +55,6 @@ static void realview_init(MachineState *machine,
> {
> ARMCPU *cpu = NULL;
> CPUARMState *env;
> - ObjectClass *cpu_oc;
> MemoryRegion *sysmem = get_system_memory();
> MemoryRegion *ram_lo;
> MemoryRegion *ram_hi = g_new(MemoryRegion, 1);
> @@ -96,14 +95,8 @@ static void realview_init(MachineState *machine,
> break;
> }
>
> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, machine->cpu_model);
> - if (!cpu_oc) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> -
> for (n = 0; n < smp_cpus; n++) {
> - Object *cpuobj = object_new(object_class_get_name(cpu_oc));
> + Object *cpuobj = object_new(machine->cpu_type);
>
> /* By default A9,A15 and ARM1176 CPUs have EL3 enabled. This board
> * does not currently support EL3 so the CPU EL3 property is disabled
> @@ -359,33 +352,21 @@ static void realview_init(MachineState *machine,
>
> static void realview_eb_init(MachineState *machine)
> {
> - if (!machine->cpu_model) {
> - machine->cpu_model = "arm926";
> - }
> realview_init(machine, BOARD_EB);
> }
>
> static void realview_eb_mpcore_init(MachineState *machine)
> {
> - if (!machine->cpu_model) {
> - machine->cpu_model = "arm11mpcore";
> - }
> realview_init(machine, BOARD_EB_MPCORE);
> }
>
> static void realview_pb_a8_init(MachineState *machine)
> {
> - if (!machine->cpu_model) {
> - machine->cpu_model = "cortex-a8";
> - }
> realview_init(machine, BOARD_PB_A8);
> }
>
> static void realview_pbx_a9_init(MachineState *machine)
> {
> - if (!machine->cpu_model) {
> - machine->cpu_model = "cortex-a9";
> - }
> realview_init(machine, BOARD_PBX_A9);
> }
>
> @@ -396,6 +377,7 @@ static void realview_eb_class_init(ObjectClass *oc, void *data)
> mc->desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)";
> mc->init = realview_eb_init;
> mc->block_default_type = IF_SCSI;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
> }
>
> static const TypeInfo realview_eb_type = {
> @@ -412,6 +394,7 @@ static void realview_eb_mpcore_class_init(ObjectClass *oc, void *data)
> mc->init = realview_eb_mpcore_init;
> mc->block_default_type = IF_SCSI;
> mc->max_cpus = 4;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm11mpcore");
> }
>
> static const TypeInfo realview_eb_mpcore_type = {
> @@ -426,6 +409,7 @@ static void realview_pb_a8_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "ARM RealView Platform Baseboard for Cortex-A8";
> mc->init = realview_pb_a8_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8");
> }
>
> static const TypeInfo realview_pb_a8_type = {
> @@ -441,6 +425,7 @@ static void realview_pbx_a9_class_init(ObjectClass *oc, void *data)
> mc->desc = "ARM RealView Platform Baseboard Explore for Cortex-A9";
> mc->init = realview_pbx_a9_init;
> mc->max_cpus = 4;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
> }
>
> static const TypeInfo realview_pbx_a9_type = {
> diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
> index 7f588ce..b6ddb7c 100644
> --- a/hw/arm/spitz.c
> +++ b/hw/arm/spitz.c
> @@ -30,6 +30,7 @@
> #include "hw/sysbus.h"
> #include "exec/address-spaces.h"
> #include "sysemu/sysemu.h"
> +#include "cpu.h"
>
> #undef REG_FMT
> #define REG_FMT "0x%02lx"
> @@ -909,13 +910,10 @@ static void spitz_common_init(MachineState *machine,
> DeviceState *scp0, *scp1 = NULL;
> MemoryRegion *address_space_mem = get_system_memory();
> MemoryRegion *rom = g_new(MemoryRegion, 1);
> - const char *cpu_model = machine->cpu_model;
> -
> - if (!cpu_model)
> - cpu_model = (model == terrier) ? "pxa270-c5" : "pxa270-c0";
>
Nice to see this go away.
> /* Setup CPU & memory */
> - mpu = pxa270_init(address_space_mem, spitz_binfo.ram_size, cpu_model);
> + mpu = pxa270_init(address_space_mem, spitz_binfo.ram_size,
> + machine->cpu_type);
>
> sl_flash_register(mpu, (model == spitz) ? FLASH_128M : FLASH_1024M);
>
> @@ -983,6 +981,7 @@ static void akitapda_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "Sharp SL-C1000 (Akita) PDA (PXA270)";
> mc->init = akita_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
> }
>
> static const TypeInfo akitapda_type = {
> @@ -998,6 +997,7 @@ static void spitzpda_class_init(ObjectClass *oc, void *data)
> mc->desc = "Sharp SL-C3000 (Spitz) PDA (PXA270)";
> mc->init = spitz_init;
> mc->block_default_type = IF_IDE;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
> }
>
> static const TypeInfo spitzpda_type = {
> @@ -1013,6 +1013,7 @@ static void borzoipda_class_init(ObjectClass *oc, void *data)
> mc->desc = "Sharp SL-C3100 (Borzoi) PDA (PXA270)";
> mc->init = borzoi_init;
> mc->block_default_type = IF_IDE;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
> }
>
> static const TypeInfo borzoipda_type = {
> @@ -1028,6 +1029,7 @@ static void terrierpda_class_init(ObjectClass *oc, void *data)
> mc->desc = "Sharp SL-C3200 (Terrier) PDA (PXA270)";
> mc->init = terrier_init;
> mc->block_default_type = IF_IDE;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
> }
>
> static const TypeInfo terrierpda_type = {
> diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
> index 408c1a1..c8fa9da 100644
> --- a/hw/arm/stellaris.c
> +++ b/hw/arm/stellaris.c
> @@ -22,6 +22,7 @@
> #include "sysemu/sysemu.h"
> #include "hw/char/pl011.h"
> #include "hw/misc/unimp.h"
> +#include "cpu.h"
>
> #define GPIO_A 0
> #define GPIO_B 1
> @@ -1225,8 +1226,7 @@ static stellaris_board_info stellaris_boards[] = {
> }
> };
>
> -static void stellaris_init(const char *kernel_filename, const char *cpu_model,
> - stellaris_board_info *board)
> +static void stellaris_init(MachineState *ms, stellaris_board_info *board)
> {
> static const int uart_irq[] = {5, 6, 33, 34};
> static const int timer_irq[] = {19, 21, 23, 35};
> @@ -1298,7 +1298,7 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
> memory_region_add_subregion(system_memory, 0x20000000, sram);
>
> nvic = armv7m_init(system_memory, flash_size, NUM_IRQ_LINES,
> - kernel_filename, cpu_model);
> + ms->kernel_filename, ms->cpu_type);
>
> qdev_connect_gpio_out_named(nvic, "SYSRESETREQ", 0,
> qemu_allocate_irq(&do_sys_reset, NULL, 0));
> @@ -1435,16 +1435,12 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
> /* FIXME: Figure out how to generate these from stellaris_boards. */
> static void lm3s811evb_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> - const char *kernel_filename = machine->kernel_filename;
> - stellaris_init(kernel_filename, cpu_model, &stellaris_boards[0]);
> + stellaris_init(machine, &stellaris_boards[0]);
> }
>
> static void lm3s6965evb_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> - const char *kernel_filename = machine->kernel_filename;
> - stellaris_init(kernel_filename, cpu_model, &stellaris_boards[1]);
> + stellaris_init(machine, &stellaris_boards[1]);
> }
>
> static void lm3s811evb_class_init(ObjectClass *oc, void *data)
> @@ -1453,6 +1449,7 @@ static void lm3s811evb_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "Stellaris LM3S811EVB";
> mc->init = lm3s811evb_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
> }
>
> static const TypeInfo lm3s811evb_type = {
> @@ -1467,6 +1464,7 @@ static void lm3s6965evb_class_init(ObjectClass *oc, void *data)
>
> mc->desc = "Stellaris LM3S6965EVB";
> mc->init = lm3s6965evb_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
> }
>
> static const TypeInfo lm3s6965evb_type = {
> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> index f61e735..1cd6374 100644
> --- a/hw/arm/stm32f205_soc.c
> +++ b/hw/arm/stm32f205_soc.c
> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>
> armv7m = DEVICE(&s->armv7m);
> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> "memory", &error_abort);
> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> }
>
> static Property stm32f205_soc_properties[] = {
> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
Same as armv7m: are we 100% sure users are not setting this
manually?
> DEFINE_PROP_END_OF_LIST(),
> };
>
> diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
> index c1145dd..3d1a231 100644
> --- a/hw/arm/strongarm.c
> +++ b/hw/arm/strongarm.c
> @@ -1581,23 +1581,19 @@ static const TypeInfo strongarm_ssp_info = {
>
> /* Main CPU functions */
> StrongARMState *sa1110_init(MemoryRegion *sysmem,
> - unsigned int sdram_size, const char *rev)
> + unsigned int sdram_size, const char *cpu_type)
> {
> StrongARMState *s;
> int i;
>
> s = g_new0(StrongARMState, 1);
>
> - if (!rev) {
> - rev = "sa1110-b5";
> - }
> -
> - if (strncmp(rev, "sa1110", 6)) {
> + if (strncmp(cpu_type, "sa1110", 6)) {
> error_report("Machine requires a SA1110 processor.");
> exit(1);
Same suggestion as on pxa270_init(): adding a TODO here noting
that we implement this using either object_class_dynamic_cast(),
or a ARMCPUClass field to identify if the CPU is sa1110.
> }
>
> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
> + s->cpu = ARM_CPU(cpu_create(cpu_type));
>
> memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
> sdram_size);
> diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
> index 8b757ff..75631f6 100644
> --- a/hw/arm/tosa.c
> +++ b/hw/arm/tosa.c
> @@ -219,7 +219,6 @@ static struct arm_boot_info tosa_binfo = {
>
> static void tosa_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> @@ -229,9 +228,6 @@ static void tosa_init(MachineState *machine)
> TC6393xbState *tmio;
> DeviceState *scp0, *scp1;
>
> - if (!cpu_model)
> - cpu_model = "pxa255";
> -
Don't we need to set mc->default_cpu_type at
tosapda_machine_init() to replace this?
> mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
>
> memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
> diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c
> index b0e9f5b..ffda0ba 100644
> --- a/hw/arm/versatilepb.c
> +++ b/hw/arm/versatilepb.c
> @@ -181,7 +181,6 @@ static struct arm_boot_info versatile_binfo;
>
> static void versatile_init(MachineState *machine, int board_id)
> {
> - ObjectClass *cpu_oc;
> Object *cpuobj;
> ARMCPU *cpu;
> MemoryRegion *sysmem = get_system_memory();
> @@ -207,17 +206,7 @@ static void versatile_init(MachineState *machine, int board_id)
> exit(1);
> }
>
> - if (!machine->cpu_model) {
> - machine->cpu_model = "arm926";
> - }
> -
> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, machine->cpu_model);
> - if (!cpu_oc) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> -
> - cpuobj = object_new(object_class_get_name(cpu_oc));
> + cpuobj = object_new(machine->cpu_type);
>
> /* By default ARM1176 CPUs have EL3 enabled. This board does not
> * currently support EL3 so the CPU EL3 property is disabled before
> @@ -403,6 +392,7 @@ static void versatilepb_class_init(ObjectClass *oc, void *data)
> mc->desc = "ARM Versatile/PB (ARM926EJ-S)";
> mc->init = vpb_init;
> mc->block_default_type = IF_SCSI;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
> }
>
> static const TypeInfo versatilepb_type = {
> @@ -418,6 +408,7 @@ static void versatileab_class_init(ObjectClass *oc, void *data)
> mc->desc = "ARM Versatile/AB (ARM926EJ-S)";
> mc->init = vab_init;
> mc->block_default_type = IF_SCSI;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
> }
>
> static const TypeInfo versatileab_type = {
> diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
> index 528c65d..4fdeda2 100644
> --- a/hw/arm/vexpress.c
> +++ b/hw/arm/vexpress.c
> @@ -184,7 +184,7 @@ typedef struct {
>
> typedef void DBoardInitFn(const VexpressMachineState *machine,
> ram_addr_t ram_size,
> - const char *cpu_model,
> + const char *cpu_type,
> qemu_irq *pic);
>
> struct VEDBoardInfo {
> @@ -200,22 +200,16 @@ struct VEDBoardInfo {
> DBoardInitFn *init;
> };
>
> -static void init_cpus(const char *cpu_model, const char *privdev,
> +static void init_cpus(const char *cpu_type, const char *privdev,
> hwaddr periphbase, qemu_irq *pic, bool secure)
> {
> - ObjectClass *cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
> DeviceState *dev;
> SysBusDevice *busdev;
> int n;
>
> - if (!cpu_oc) {
> - fprintf(stderr, "Unable to find CPU definition\n");
> - exit(1);
> - }
> -
> /* Create the actual CPUs */
> for (n = 0; n < smp_cpus; n++) {
> - Object *cpuobj = object_new(object_class_get_name(cpu_oc));
> + Object *cpuobj = object_new(cpu_type);
>
> if (!secure) {
> object_property_set_bool(cpuobj, false, "has_el3", NULL);
> @@ -260,7 +254,7 @@ static void init_cpus(const char *cpu_model, const char *privdev,
>
> static void a9_daughterboard_init(const VexpressMachineState *vms,
> ram_addr_t ram_size,
> - const char *cpu_model,
> + const char *cpu_type,
> qemu_irq *pic)
> {
> MemoryRegion *sysmem = get_system_memory();
> @@ -268,10 +262,6 @@ static void a9_daughterboard_init(const VexpressMachineState *vms,
> MemoryRegion *lowram = g_new(MemoryRegion, 1);
> ram_addr_t low_ram_size;
>
> - if (!cpu_model) {
> - cpu_model = "cortex-a9";
> - }
> -
> if (ram_size > 0x40000000) {
> /* 1GB is the maximum the address space permits */
> fprintf(stderr, "vexpress-a9: cannot model more than 1GB RAM\n");
> @@ -293,7 +283,7 @@ static void a9_daughterboard_init(const VexpressMachineState *vms,
> memory_region_add_subregion(sysmem, 0x60000000, ram);
>
> /* 0x1e000000 A9MPCore (SCU) private memory region */
> - init_cpus(cpu_model, "a9mpcore_priv", 0x1e000000, pic, vms->secure);
> + init_cpus(cpu_type, "a9mpcore_priv", 0x1e000000, pic, vms->secure);
>
> /* Daughterboard peripherals : 0x10020000 .. 0x20000000 */
>
> @@ -349,17 +339,13 @@ static VEDBoardInfo a9_daughterboard = {
>
> static void a15_daughterboard_init(const VexpressMachineState *vms,
> ram_addr_t ram_size,
> - const char *cpu_model,
> + const char *cpu_type,
> qemu_irq *pic)
> {
> MemoryRegion *sysmem = get_system_memory();
> MemoryRegion *ram = g_new(MemoryRegion, 1);
> MemoryRegion *sram = g_new(MemoryRegion, 1);
>
> - if (!cpu_model) {
> - cpu_model = "cortex-a15";
> - }
> -
> {
> /* We have to use a separate 64 bit variable here to avoid the gcc
> * "comparison is always false due to limited range of data type"
> @@ -378,7 +364,7 @@ static void a15_daughterboard_init(const VexpressMachineState *vms,
> memory_region_add_subregion(sysmem, 0x80000000, ram);
>
> /* 0x2c000000 A15MPCore private memory region (GIC) */
> - init_cpus(cpu_model, "a15mpcore_priv", 0x2c000000, pic, vms->secure);
> + init_cpus(cpu_type, "a15mpcore_priv", 0x2c000000, pic, vms->secure);
>
> /* A15 daughterboard peripherals: */
>
> @@ -558,7 +544,7 @@ static void vexpress_common_init(MachineState *machine)
> const hwaddr *map = daughterboard->motherboard_map;
> int i;
>
> - daughterboard->init(vms, machine->ram_size, machine->cpu_model, pic);
> + daughterboard->init(vms, machine->ram_size, machine->cpu_type, pic);
>
> /*
> * If a bios file was provided, attempt to map it into memory
> @@ -758,6 +744,7 @@ static void vexpress_a9_class_init(ObjectClass *oc, void *data)
> VexpressMachineClass *vmc = VEXPRESS_MACHINE_CLASS(oc);
>
> mc->desc = "ARM Versatile Express for Cortex-A9";
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
>
> vmc->daughterboard = &a9_daughterboard;
> }
> @@ -768,6 +755,7 @@ static void vexpress_a15_class_init(ObjectClass *oc, void *data)
> VexpressMachineClass *vmc = VEXPRESS_MACHINE_CLASS(oc);
>
> mc->desc = "ARM Versatile Express for Cortex-A15";
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
>
> vmc->daughterboard = &a15_daughterboard;
> }
> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
> index 6b7a0fe..c68cf08 100644
> --- a/hw/arm/virt.c
> +++ b/hw/arm/virt.c
> @@ -163,13 +163,13 @@ static const int a15irqmap[] = {
> };
>
> static const char *valid_cpus[] = {
> - "cortex-a15",
> - "cortex-a53",
> - "cortex-a57",
> - "host",
> + ARM_CPU_TYPE_NAME("cortex-a15"),
> + ARM_CPU_TYPE_NAME("cortex-a53"),
> + ARM_CPU_TYPE_NAME("cortex-a57"),
> + ARM_CPU_TYPE_NAME("host"),
> };
I think this is the 4th case where machine code validates the CPU
type. It looks like a generic MachineClass::valid_cpu_types[]
field will be very useful.
>
> -static bool cpuname_valid(const char *cpu)
> +static bool cpu_type_valid(const char *cpu)
> {
> int i;
>
> @@ -1250,18 +1250,8 @@ static void machvirt_init(MachineState *machine)
> MemoryRegion *secure_sysmem = NULL;
> int n, virt_max_cpus;
> MemoryRegion *ram = g_new(MemoryRegion, 1);
> - const char *cpu_model = machine->cpu_model;
> - char **cpustr;
> - ObjectClass *oc;
> - const char *typename;
> - CPUClass *cc;
> - Error *err = NULL;
> bool firmware_loaded = bios_name || drive_get(IF_PFLASH, 0, 0);
>
> - if (!cpu_model) {
> - cpu_model = "cortex-a15";
> - }
> -
> /* We can probe only here because during property set
> * KVM is not available yet
> */
> @@ -1278,11 +1268,8 @@ static void machvirt_init(MachineState *machine)
> }
> }
>
> - /* Separate the actual CPU model name from any appended features */
> - cpustr = g_strsplit(cpu_model, ",", 2);
> -
> - if (!cpuname_valid(cpustr[0])) {
> - error_report("mach-virt: CPU %s not supported", cpustr[0]);
> + if (!cpu_type_valid(machine->cpu_type)) {
> + error_report("mach-virt: CPU type %s not supported", machine->cpu_type);
> exit(1);
> }
Nice.
>
> @@ -1352,22 +1339,6 @@ static void machvirt_init(MachineState *machine)
>
> create_fdt(vms);
>
> - oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
> - if (!oc) {
> - error_report("Unable to find CPU definition");
> - exit(1);
> - }
> - typename = object_class_get_name(oc);
> -
> - /* convert -smp CPU options specified by the user into global props */
> - cc = CPU_CLASS(oc);
> - cc->parse_features(typename, cpustr[1], &err);
> - g_strfreev(cpustr);
> - if (err) {
> - error_report_err(err);
> - exit(1);
> - }
> -
Nice.
> possible_cpus = mc->possible_cpu_arch_ids(machine);
> for (n = 0; n < possible_cpus->len; n++) {
> Object *cpuobj;
> @@ -1377,7 +1348,7 @@ static void machvirt_init(MachineState *machine)
> break;
> }
>
> - cpuobj = object_new(typename);
> + cpuobj = object_new(machine->cpu_type);
> object_property_set_int(cpuobj, possible_cpus->cpus[n].arch_id,
> "mp-affinity", NULL);
>
> @@ -1622,6 +1593,7 @@ static void virt_machine_class_init(ObjectClass *oc, void *data)
> mc->minimum_page_bits = 12;
> mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids;
> mc->cpu_index_to_instance_props = virt_cpu_index_to_props;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
> }
>
> static const TypeInfo virt_machine_info = {
> diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c
> index 6b11a75..4efca78 100644
> --- a/hw/arm/xilinx_zynq.c
> +++ b/hw/arm/xilinx_zynq.c
> @@ -156,11 +156,9 @@ static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
> static void zynq_init(MachineState *machine)
> {
> ram_addr_t ram_size = machine->ram_size;
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> - ObjectClass *cpu_oc;
> ARMCPU *cpu;
> MemoryRegion *address_space_mem = get_system_memory();
> MemoryRegion *ext_ram = g_new(MemoryRegion, 1);
> @@ -172,12 +170,7 @@ static void zynq_init(MachineState *machine)
> qemu_irq pic[64];
> int n;
>
> - if (!cpu_model) {
> - cpu_model = "cortex-a9";
> - }
> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
> -
> - cpu = ARM_CPU(object_new(object_class_get_name(cpu_oc)));
> + cpu = ARM_CPU(object_new(machine->cpu_type));
>
> /* By default A9 CPUs have EL3 enabled. This board does not
> * currently support EL3 so the CPU EL3 property is disabled before
> @@ -324,6 +317,7 @@ static void zynq_machine_init(MachineClass *mc)
> mc->init = zynq_init;
> mc->max_cpus = 1;
> mc->no_sdcard = 1;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
> }
>
> DEFINE_MACHINE("xilinx-zynq-a9", zynq_machine_init)
> diff --git a/hw/arm/z2.c b/hw/arm/z2.c
> index 1607cbd..f306407 100644
> --- a/hw/arm/z2.c
> +++ b/hw/arm/z2.c
> @@ -26,6 +26,7 @@
> #include "audio/audio.h"
> #include "exec/address-spaces.h"
> #include "sysemu/qtest.h"
> +#include "cpu.h"
>
> #ifdef DEBUG_Z2
> #define DPRINTF(fmt, ...) \
> @@ -296,7 +297,6 @@ static const TypeInfo aer915_info = {
>
> static void z2_init(MachineState *machine)
> {
> - const char *cpu_model = machine->cpu_model;
> const char *kernel_filename = machine->kernel_filename;
> const char *kernel_cmdline = machine->kernel_cmdline;
> const char *initrd_filename = machine->initrd_filename;
> @@ -309,12 +309,8 @@ static void z2_init(MachineState *machine)
> I2CBus *bus;
> DeviceState *wm;
>
> - if (!cpu_model) {
> - cpu_model = "pxa270-c5";
> - }
> -
> /* Setup CPU & memory */
> - mpu = pxa270_init(address_space_mem, z2_binfo.ram_size, cpu_model);
> + mpu = pxa270_init(address_space_mem, z2_binfo.ram_size, machine->cpu_type);
>
> #ifdef TARGET_WORDS_BIGENDIAN
> be = 1;
> @@ -370,6 +366,7 @@ static void z2_machine_init(MachineClass *mc)
> {
> mc->desc = "Zipit Z2 (PXA27x)";
> mc->init = z2_init;
> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
> }
>
> DEFINE_MACHINE("z2", z2_machine_init)
> diff --git a/target/arm/cpu.c b/target/arm/cpu.c
> index 05c038b..feeeeb2 100644
> --- a/target/arm/cpu.c
> +++ b/target/arm/cpu.c
> @@ -867,7 +867,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
> }
>
> cpuname = g_strsplit(cpu_model, ",", 1);
> - typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpuname[0]);
> + typename = g_strdup_printf("%s" ARM_CPU_TYPE_SUFFIX, cpuname[0]);
What about doing the same we do in x86 and s390:
g_strdup_printf(ARM_CPU_TYPE_NAME("%s"), cpuname[0]);
> oc = object_class_by_name(typename);
> g_strfreev(cpuname);
> g_free(typename);
> --
> 2.7.4
>
>
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 21:31 ` Eduardo Habkost
@ 2017-09-05 21:47 ` Alistair Francis
2017-09-05 22:12 ` Eduardo Habkost
2017-09-12 11:02 ` Igor Mammedov
2017-09-12 12:11 ` Igor Mammedov
1 sibling, 2 replies; 37+ messages in thread
From: Alistair Francis @ 2017-09-05 21:47 UTC (permalink / raw)
To: Eduardo Habkost
Cc: Igor Mammedov, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> On Mon, Sep 04, 2017 at 04:01:02PM +0200, Igor Mammedov wrote:
>> there are 2 use cases to deal with:
>> 1: fixed CPU models per board/soc
>> 2: boards with user configurable cpu_model and fallback to
>> default cpu_model if user hasn't specified one explicitly
>>
>> For the 1st
>> drop intermediate cpu_model parsing and use const cpu type
>> directly, which replaces:
>> typename = object_class_get_name(
>> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
>> object_new(typename)
>> with
>> object_new(FOO_CPU_TYPE_NAME)
>> or
>> cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
>> with
>> cpu_create(FOO_CPU_TYPE_NAME)
>>
>> as result 1st use case doesn't have to invoke not necessary
>> translation and not needed code is removed.
>>
>> For the 2nd
>> 1: set default cpu type with MachineClass::default_cpu_type and
>> 2: use generic cpu_model parsing that done before machine_init()
>> is run and:
>> 2.1: drop custom cpu_model parsing where pattern is:
>> typename = object_class_get_name(
>> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
>> [parse_features(typename, cpu_model, &err) ]
>>
>> 2.2: or replace cpu_generic_init() which does what
>> 2.1 does + create_cpu(typename) with just
>> create_cpu(machine->cpu_type)
>> as result cpu_name -> cpu_type translation is done using
>> generic machine code one including parsing optional features
>> if supported/present (removes a bunch of duplicated cpu_model
>> parsing code) and default cpu type is defined in an uniform way
>> within machine_class_init callbacks instead of adhoc places
>> in boadr's machine_init code.
>>
>> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
>> ---
>> CC: Peter Maydell <peter.maydell@linaro.org>
>> CC: Igor Mitsyanko <i.mitsyanko@gmail.com>
>> CC: Rob Herring <robh@kernel.org>
>> CC: Andrzej Zaborowski <balrogg@gmail.com>
>> CC: Jan Kiszka <jan.kiszka@web.de>
>> CC: Alistair Francis <alistair@alistair23.me>
>> CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
>> CC: qemu-arm@nongnu.org
>> ---
>> include/hw/arm/armv7m.h | 2 +-
>> include/hw/arm/aspeed_soc.h | 2 +-
>> include/hw/arm/stm32f205_soc.h | 2 +-
>> target/arm/cpu.h | 3 +++
>> hw/arm/armv7m.c | 40 +++++-------------------------------
>> hw/arm/aspeed_soc.c | 13 +++++-------
>> hw/arm/collie.c | 10 +++------
>> hw/arm/exynos4210.c | 6 +-----
>> hw/arm/gumstix.c | 5 +++--
>> hw/arm/highbank.c | 10 ++++-----
>> hw/arm/integratorcp.c | 30 ++-------------------------
>> hw/arm/mainstone.c | 9 ++++-----
>> hw/arm/mps2.c | 17 +++++++---------
>> hw/arm/musicpal.c | 7 ++-----
>> hw/arm/netduino2.c | 2 +-
>> hw/arm/nseries.c | 4 +++-
>> hw/arm/omap1.c | 7 ++-----
>> hw/arm/omap2.c | 4 ++--
>> hw/arm/omap_sx1.c | 5 ++++-
>> hw/arm/palm.c | 5 +++--
>> hw/arm/pxa2xx.c | 10 ++++-----
>> hw/arm/realview.c | 25 +++++------------------
>> hw/arm/spitz.c | 12 ++++++-----
>> hw/arm/stellaris.c | 16 +++++++--------
>> hw/arm/stm32f205_soc.c | 4 ++--
>> hw/arm/strongarm.c | 10 +++------
>> hw/arm/tosa.c | 4 ----
>> hw/arm/versatilepb.c | 15 +++-----------
>> hw/arm/vexpress.c | 32 +++++++++--------------------
>> hw/arm/virt.c | 46 +++++++++---------------------------------
>> hw/arm/xilinx_zynq.c | 10 ++-------
>> hw/arm/z2.c | 9 +++------
>> target/arm/cpu.c | 2 +-
>> 33 files changed, 114 insertions(+), 264 deletions(-)
>>
>> diff --git a/include/hw/arm/armv7m.h b/include/hw/arm/armv7m.h
>> index a9b3f2a..8496743 100644
>> --- a/include/hw/arm/armv7m.h
>> +++ b/include/hw/arm/armv7m.h
>> @@ -55,7 +55,7 @@ typedef struct ARMv7MState {
>> MemoryRegion container;
>>
>> /* Properties */
>> - char *cpu_model;
>> + char *cpu_type;
>> /* MemoryRegion the board provides to us (with its devices, RAM, etc) */
>> MemoryRegion *board_memory;
>> } ARMv7MState;
>> diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
>> index 0b88baa..f26914a 100644
>> --- a/include/hw/arm/aspeed_soc.h
>> +++ b/include/hw/arm/aspeed_soc.h
>> @@ -49,7 +49,7 @@ typedef struct AspeedSoCState {
>>
>> typedef struct AspeedSoCInfo {
>> const char *name;
>> - const char *cpu_model;
>> + const char *cpu_type;
>> uint32_t silicon_rev;
>> hwaddr sdram_base;
>> uint64_t sram_size;
>> diff --git a/include/hw/arm/stm32f205_soc.h b/include/hw/arm/stm32f205_soc.h
>> index e2dce11..922a733 100644
>> --- a/include/hw/arm/stm32f205_soc.h
>> +++ b/include/hw/arm/stm32f205_soc.h
>> @@ -52,7 +52,7 @@ typedef struct STM32F205State {
>> SysBusDevice parent_obj;
>> /*< public >*/
>>
>> - char *cpu_model;
>> + char *cpu_type;
>>
>> ARMv7MState armv7m;
>>
>> diff --git a/target/arm/cpu.h b/target/arm/cpu.h
>> index 5932ef1..3e1ba19 100644
>> --- a/target/arm/cpu.h
>> +++ b/target/arm/cpu.h
>> @@ -2002,6 +2002,9 @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx,
>>
>> #define cpu_init(cpu_model) cpu_generic_init(TYPE_ARM_CPU, cpu_model)
>>
>> +#define ARM_CPU_TYPE_SUFFIX "-" TYPE_ARM_CPU
>> +#define ARM_CPU_TYPE_NAME(name) (name ARM_CPU_TYPE_SUFFIX)
>> +
>> #define cpu_signal_handler cpu_arm_signal_handler
>> #define cpu_list arm_cpu_list
>>
>> diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c
>> index c8a11f2..9c45f26 100644
>> --- a/hw/arm/armv7m.c
>> +++ b/hw/arm/armv7m.c
>> @@ -163,10 +163,6 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
>> SysBusDevice *sbd;
>> Error *err = NULL;
>> int i;
>> - char **cpustr;
>> - ObjectClass *oc;
>> - const char *typename;
>> - CPUClass *cc;
>>
>> if (!s->board_memory) {
>> error_setg(errp, "memory property was not set");
>> @@ -175,29 +171,7 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
>>
>> memory_region_add_subregion_overlap(&s->container, 0, s->board_memory, -1);
>>
>> - cpustr = g_strsplit(s->cpu_model, ",", 2);
>> -
>> - oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
>> - if (!oc) {
>> - error_setg(errp, "Unknown CPU model %s", cpustr[0]);
>> - g_strfreev(cpustr);
>> - return;
>> - }
>> -
>> - cc = CPU_CLASS(oc);
>> - typename = object_class_get_name(oc);
>> - cc->parse_features(typename, cpustr[1], &err);
>> - g_strfreev(cpustr);
>> - if (err) {
>> - error_propagate(errp, err);
>> - return;
>> - }
>> -
>> - s->cpu = ARM_CPU(object_new(typename));
>> - if (!s->cpu) {
>> - error_setg(errp, "Unknown CPU model %s", s->cpu_model);
>> - return;
>> - }
>> + s->cpu = ARM_CPU(object_new(s->cpu_type));
>
> Nice.
>
>>
>> object_property_set_link(OBJECT(s->cpu), OBJECT(&s->container), "memory",
>> &error_abort);
>> @@ -253,7 +227,7 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
>> }
>>
>> static Property armv7m_properties[] = {
>> - DEFINE_PROP_STRING("cpu-model", ARMv7MState, cpu_model),
>> + DEFINE_PROP_STRING("cpu-type", ARMv7MState, cpu_type),
>
> Are we 100% sure the cpu-model property is never manually set by
> users?
>
>
>> DEFINE_PROP_END_OF_LIST(),
>> };
>>
>> @@ -285,20 +259,16 @@ static void armv7m_reset(void *opaque)
>> Returns the ARMv7M device. */
>>
>> DeviceState *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
>> - const char *kernel_filename, const char *cpu_model)
>> + const char *kernel_filename, const char *cpu_type)
>> {
>> DeviceState *armv7m;
>>
>> - if (cpu_model == NULL) {
>> - cpu_model = "cortex-m3";
>> - }
>> -
>
> I was going to suggest doing the default_cpu_type stuff in a
> separate patch, but it might require touching those lines twice.
> So I guess this is OK.
>
>
>> armv7m = qdev_create(NULL, "armv7m");
>> qdev_prop_set_uint32(armv7m, "num-irq", num_irq);
>> - qdev_prop_set_string(armv7m, "cpu-model", cpu_model);
>> + qdev_prop_set_string(armv7m, "cpu-type", cpu_type);
>> object_property_set_link(OBJECT(armv7m), OBJECT(get_system_memory()),
>> "memory", &error_abort);
>> - /* This will exit with an error if the user passed us a bad cpu_model */
>> + /* This will exit with an error if the user passed us a bad cpu_type */
>> qdev_init_nofail(armv7m);
>>
>> armv7m_load_kernel(ARM_CPU(first_cpu), kernel_filename, mem_size);
>> diff --git a/hw/arm/aspeed_soc.c b/hw/arm/aspeed_soc.c
>> index 5529024..cd7bb94 100644
>> --- a/hw/arm/aspeed_soc.c
>> +++ b/hw/arm/aspeed_soc.c
>> @@ -54,7 +54,7 @@ static const char *aspeed_soc_ast2500_typenames[] = {
>> static const AspeedSoCInfo aspeed_socs[] = {
>> {
>> .name = "ast2400-a0",
>> - .cpu_model = "arm926",
>> + .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
>> .silicon_rev = AST2400_A0_SILICON_REV,
>> .sdram_base = AST2400_SDRAM_BASE,
>> .sram_size = 0x8000,
>> @@ -65,7 +65,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
>> .wdts_num = 2,
>> }, {
>> .name = "ast2400-a1",
>> - .cpu_model = "arm926",
>> + .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
>> .silicon_rev = AST2400_A1_SILICON_REV,
>> .sdram_base = AST2400_SDRAM_BASE,
>> .sram_size = 0x8000,
>> @@ -76,7 +76,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
>> .wdts_num = 2,
>> }, {
>> .name = "ast2400",
>> - .cpu_model = "arm926",
>> + .cpu_type = ARM_CPU_TYPE_NAME("arm926"),
>> .silicon_rev = AST2400_A0_SILICON_REV,
>> .sdram_base = AST2400_SDRAM_BASE,
>> .sram_size = 0x8000,
>> @@ -87,7 +87,7 @@ static const AspeedSoCInfo aspeed_socs[] = {
>> .wdts_num = 2,
>> }, {
>> .name = "ast2500-a1",
>> - .cpu_model = "arm1176",
>> + .cpu_type = ARM_CPU_TYPE_NAME("arm1176"),
>> .silicon_rev = AST2500_A1_SILICON_REV,
>> .sdram_base = AST2500_SDRAM_BASE,
>> .sram_size = 0x9000,
>> @@ -128,13 +128,10 @@ static void aspeed_soc_init(Object *obj)
>> {
>> AspeedSoCState *s = ASPEED_SOC(obj);
>> AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
>> - char *cpu_typename;
>> int i;
>>
>> - cpu_typename = g_strdup_printf("%s-" TYPE_ARM_CPU, sc->info->cpu_model);
>> - object_initialize(&s->cpu, sizeof(s->cpu), cpu_typename);
>> + object_initialize(&s->cpu, sizeof(s->cpu), sc->info->cpu_type);
>> object_property_add_child(obj, "cpu", OBJECT(&s->cpu), NULL);
>> - g_free(cpu_typename);
>>
>
> Nice.
>
>> object_initialize(&s->vic, sizeof(s->vic), TYPE_ASPEED_VIC);
>> object_property_add_child(obj, "vic", OBJECT(&s->vic), NULL);
>> diff --git a/hw/arm/collie.c b/hw/arm/collie.c
>> index 2e69531..f043cd8 100644
>> --- a/hw/arm/collie.c
>> +++ b/hw/arm/collie.c
>> @@ -18,7 +18,7 @@
>> #include "hw/block/flash.h"
>> #include "sysemu/block-backend.h"
>> #include "exec/address-spaces.h"
>> -#include "qom/cpu.h"
>> +#include "cpu.h"
>>
>> static struct arm_boot_info collie_binfo = {
>> .loader_start = SA_SDCS0,
>> @@ -27,7 +27,6 @@ static struct arm_boot_info collie_binfo = {
>>
>> static void collie_init(MachineState *machine)
>> {
>> - const char *cpu_model = machine->cpu_model;
>> const char *kernel_filename = machine->kernel_filename;
>> const char *kernel_cmdline = machine->kernel_cmdline;
>> const char *initrd_filename = machine->initrd_filename;
>> @@ -35,11 +34,7 @@ static void collie_init(MachineState *machine)
>> DriveInfo *dinfo;
>> MemoryRegion *sysmem = get_system_memory();
>>
>> - if (!cpu_model) {
>> - cpu_model = "sa1110";
>> - }
>> -
>> - s = sa1110_init(sysmem, collie_binfo.ram_size, cpu_model);
>> + s = sa1110_init(sysmem, collie_binfo.ram_size, machine->cpu_type);
>>
>> dinfo = drive_get(IF_PFLASH, 0, 0);
>> pflash_cfi01_register(SA_CS0, NULL, "collie.fl1", 0x02000000,
>> @@ -64,6 +59,7 @@ static void collie_machine_init(MachineClass *mc)
>> {
>> mc->desc = "Sharp SL-5500 (Collie) PDA (SA-1110)";
>> mc->init = collie_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("sa1110");
>> }
>>
>> DEFINE_MACHINE("collie", collie_machine_init)
>> diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
>> index f9e79f3..81f12e3 100644
>> --- a/hw/arm/exynos4210.c
>> +++ b/hw/arm/exynos4210.c
>> @@ -169,15 +169,11 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem)
>> Exynos4210State *s = g_new(Exynos4210State, 1);
>> qemu_irq gate_irq[EXYNOS4210_NCPUS][EXYNOS4210_IRQ_GATE_NINPUTS];
>> SysBusDevice *busdev;
>> - ObjectClass *cpu_oc;
>> DeviceState *dev;
>> int i, n;
>>
>> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, "cortex-a9");
>> - assert(cpu_oc);
>> -
>> for (n = 0; n < EXYNOS4210_NCPUS; n++) {
>> - Object *cpuobj = object_new(object_class_get_name(cpu_oc));
>> + Object *cpuobj = object_new(ARM_CPU_TYPE_NAME("cortex-a9"));
>>
>> /* By default A9 CPUs have EL3 enabled. This board does not currently
>> * support EL3 so the CPU EL3 property is disabled before realization.
>> diff --git a/hw/arm/gumstix.c b/hw/arm/gumstix.c
>> index d59d9ba..2b66bb7 100644
>> --- a/hw/arm/gumstix.c
>> +++ b/hw/arm/gumstix.c
>> @@ -44,6 +44,7 @@
>> #include "sysemu/block-backend.h"
>> #include "exec/address-spaces.h"
>> #include "sysemu/qtest.h"
>> +#include "cpu.h"
>>
>> static const int sector_len = 128 * 1024;
>>
>> @@ -86,7 +87,6 @@ static void connex_init(MachineState *machine)
>>
>> static void verdex_init(MachineState *machine)
>> {
>> - const char *cpu_model = machine->cpu_model;
>> PXA2xxState *cpu;
>> DriveInfo *dinfo;
>> int be;
>> @@ -95,7 +95,7 @@ static void verdex_init(MachineState *machine)
>> uint32_t verdex_rom = 0x02000000;
>> uint32_t verdex_ram = 0x10000000;
>>
>> - cpu = pxa270_init(address_space_mem, verdex_ram, cpu_model ?: "pxa270-c0");
>> + cpu = pxa270_init(address_space_mem, verdex_ram, machine->cpu_type);
>>
>> dinfo = drive_get(IF_PFLASH, 0, 0);
>> if (!dinfo && !qtest_enabled()) {
>> @@ -142,6 +142,7 @@ static void verdex_class_init(ObjectClass *oc, void *data)
>>
>> mc->desc = "Gumstix Verdex (PXA270)";
>> mc->init = verdex_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
>> }
>>
>> static const TypeInfo verdex_type = {
>> diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
>> index 20e60f1..0d7190a 100644
>> --- a/hw/arm/highbank.c
>> +++ b/hw/arm/highbank.c
>> @@ -219,7 +219,6 @@ enum cxmachines {
>> static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
>> {
>> ram_addr_t ram_size = machine->ram_size;
>> - const char *cpu_model = machine->cpu_model;
>> const char *kernel_filename = machine->kernel_filename;
>> const char *kernel_cmdline = machine->kernel_cmdline;
>> const char *initrd_filename = machine->initrd_filename;
>> @@ -236,19 +235,20 @@ static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
>>
>> switch (machine_id) {
>> case CALXEDA_HIGHBANK:
>> - cpu_model = "cortex-a9";
>> + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
>> break;
>> case CALXEDA_MIDWAY:
>> - cpu_model = "cortex-a15";
>> + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
>> break;
>> + default:
>> + assert(0);
>> }
>
> Why not delete this switch statement completely and set
> default_cpu_type at midway_class_init() and
> highbank_class_init()?
>
>
>>
>> for (n = 0; n < smp_cpus; n++) {
>> - ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
>> Object *cpuobj;
>> ARMCPU *cpu;
>>
>> - cpuobj = object_new(object_class_get_name(oc));
>> + cpuobj = object_new(machine->cpu_type);
>> cpu = ARM_CPU(cpuobj);
>>
>> object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
>> diff --git a/hw/arm/integratorcp.c b/hw/arm/integratorcp.c
>> index d9530ed..44d247e 100644
>> --- a/hw/arm/integratorcp.c
>> +++ b/hw/arm/integratorcp.c
>> @@ -572,46 +572,19 @@ static struct arm_boot_info integrator_binfo = {
>> static void integratorcp_init(MachineState *machine)
>> {
>> ram_addr_t ram_size = machine->ram_size;
>> - const char *cpu_model = machine->cpu_model;
>> const char *kernel_filename = machine->kernel_filename;
>> const char *kernel_cmdline = machine->kernel_cmdline;
>> const char *initrd_filename = machine->initrd_filename;
>> - char **cpustr;
>> - ObjectClass *cpu_oc;
>> - CPUClass *cc;
>> Object *cpuobj;
>> ARMCPU *cpu;
>> - const char *typename;
>> MemoryRegion *address_space_mem = get_system_memory();
>> MemoryRegion *ram = g_new(MemoryRegion, 1);
>> MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
>> qemu_irq pic[32];
>> DeviceState *dev, *sic, *icp;
>> int i;
>> - Error *err = NULL;
>>
>> - if (!cpu_model) {
>> - cpu_model = "arm926";
>> - }
>> -
>> - cpustr = g_strsplit(cpu_model, ",", 2);
>> -
>> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpustr[0]);
>> - if (!cpu_oc) {
>> - fprintf(stderr, "Unable to find CPU definition\n");
>> - exit(1);
>> - }
>> - typename = object_class_get_name(cpu_oc);
>> -
>> - cc = CPU_CLASS(cpu_oc);
>> - cc->parse_features(typename, cpustr[1], &err);
>> - g_strfreev(cpustr);
>> - if (err) {
>> - error_report_err(err);
>> - exit(1);
>> - }
>> -
>> - cpuobj = object_new(typename);
>> + cpuobj = object_new(machine->cpu_type);
>
> Nice.
>
>>
>> /* By default ARM1176 CPUs have EL3 enabled. This board does not
>> * currently support EL3 so the CPU EL3 property is disabled before
>> @@ -681,6 +654,7 @@ static void integratorcp_machine_init(MachineClass *mc)
>> {
>> mc->desc = "ARM Integrator/CP (ARM926EJ-S)";
>> mc->init = integratorcp_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
>> }
>>
>> DEFINE_MACHINE("integratorcp", integratorcp_machine_init)
>> diff --git a/hw/arm/mainstone.c b/hw/arm/mainstone.c
>> index fb268e6..2b13d30 100644
>> --- a/hw/arm/mainstone.c
>> +++ b/hw/arm/mainstone.c
>> @@ -24,6 +24,7 @@
>> #include "hw/sysbus.h"
>> #include "exec/address-spaces.h"
>> #include "sysemu/qtest.h"
>> +#include "cpu.h"
>>
>> /* Device addresses */
>> #define MST_FPGA_PHYS 0x08000000
>> @@ -121,13 +122,10 @@ static void mainstone_common_init(MemoryRegion *address_space_mem,
>> int i;
>> int be;
>> MemoryRegion *rom = g_new(MemoryRegion, 1);
>> - const char *cpu_model = machine->cpu_model;
>> -
>> - if (!cpu_model)
>> - cpu_model = "pxa270-c5";
>>
>> /* Setup CPU & memory */
>> - mpu = pxa270_init(address_space_mem, mainstone_binfo.ram_size, cpu_model);
>> + mpu = pxa270_init(address_space_mem, mainstone_binfo.ram_size,
>> + machine->cpu_type);
>> memory_region_init_ram(rom, NULL, "mainstone.rom", MAINSTONE_ROM,
>> &error_fatal);
>> memory_region_set_readonly(rom, true);
>> @@ -196,6 +194,7 @@ static void mainstone2_machine_init(MachineClass *mc)
>> {
>> mc->desc = "Mainstone II (PXA27x)";
>> mc->init = mainstone_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
>> }
>>
>> DEFINE_MACHINE("mainstone", mainstone2_machine_init)
>> diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
>> index abb0ab6..aeaad80 100644
>> --- a/hw/arm/mps2.c
>> +++ b/hw/arm/mps2.c
>> @@ -46,7 +46,6 @@ typedef enum MPS2FPGAType {
>> typedef struct {
>> MachineClass parent;
>> MPS2FPGAType fpga_type;
>> - const char *cpu_model;
>> uint32_t scc_id;
>> } MPS2MachineClass;
>>
>> @@ -107,14 +106,12 @@ static void mps2_common_init(MachineState *machine)
>> MPS2MachineState *mms = MPS2_MACHINE(machine);
>> MPS2MachineClass *mmc = MPS2_MACHINE_GET_CLASS(machine);
>> MemoryRegion *system_memory = get_system_memory();
>> + MachineClass *mc = MACHINE_GET_CLASS(machine);
>> DeviceState *armv7m, *sccdev;
>>
>> - if (!machine->cpu_model) {
>> - machine->cpu_model = mmc->cpu_model;
>> - }
>> -
>> - if (strcmp(machine->cpu_model, mmc->cpu_model) != 0) {
>> - error_report("This board can only be used with CPU %s", mmc->cpu_model);
>> + if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
>> + error_report("This board can only be used with CPU %s",
>> + mc->default_cpu_type);
>
> Suggestion for later: a generic mechanism to let the machine
> class validate the CPU type this way. Maybe a
> MachineClass::configurable_cpu_type=false field?
>
>
>> exit(1);
>> }
>>
>> @@ -188,7 +185,7 @@ static void mps2_common_init(MachineState *machine)
>> default:
>> g_assert_not_reached();
>> }
>> - qdev_prop_set_string(armv7m, "cpu-model", machine->cpu_model);
>> + qdev_prop_set_string(armv7m, "cpu-type", machine->cpu_type);
>> object_property_set_link(OBJECT(&mms->armv7m), OBJECT(system_memory),
>> "memory", &error_abort);
>> object_property_set_bool(OBJECT(&mms->armv7m), true, "realized",
>> @@ -339,7 +336,7 @@ static void mps2_an385_class_init(ObjectClass *oc, void *data)
>>
>> mc->desc = "ARM MPS2 with AN385 FPGA image for Cortex-M3";
>> mmc->fpga_type = FPGA_AN385;
>> - mmc->cpu_model = "cortex-m3";
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
>> mmc->scc_id = 0x41040000 | (385 << 4);
>> }
>>
>> @@ -350,7 +347,7 @@ static void mps2_an511_class_init(ObjectClass *oc, void *data)
>>
>> mc->desc = "ARM MPS2 with AN511 DesignStart FPGA image for Cortex-M3";
>> mmc->fpga_type = FPGA_AN511;
>> - mmc->cpu_model = "cortex-m3";
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
>> mmc->scc_id = 0x4104000 | (511 << 4);
>> }
>>
>> diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
>> index 64c8e09..9b2000d 100644
>> --- a/hw/arm/musicpal.c
>> +++ b/hw/arm/musicpal.c
>> @@ -1570,7 +1570,6 @@ static struct arm_boot_info musicpal_binfo = {
>>
>> static void musicpal_init(MachineState *machine)
>> {
>> - const char *cpu_model = machine->cpu_model;
>> const char *kernel_filename = machine->kernel_filename;
>> const char *kernel_cmdline = machine->kernel_cmdline;
>> const char *initrd_filename = machine->initrd_filename;
>> @@ -1590,10 +1589,7 @@ static void musicpal_init(MachineState *machine)
>> MemoryRegion *ram = g_new(MemoryRegion, 1);
>> MemoryRegion *sram = g_new(MemoryRegion, 1);
>>
>> - if (!cpu_model) {
>> - cpu_model = "arm926";
>> - }
>> - cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, cpu_model));
>> + cpu = ARM_CPU(cpu_create(machine->cpu_type));
>>
>> /* For now we use a fixed - the original - RAM size */
>> memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",
>> @@ -1714,6 +1710,7 @@ static void musicpal_machine_init(MachineClass *mc)
>> {
>> mc->desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)";
>> mc->init = musicpal_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
>> }
>>
>> DEFINE_MACHINE("musicpal", musicpal_machine_init)
>> diff --git a/hw/arm/netduino2.c b/hw/arm/netduino2.c
>> index 3cfe332..4790824 100644
>> --- a/hw/arm/netduino2.c
>> +++ b/hw/arm/netduino2.c
>> @@ -34,7 +34,7 @@ static void netduino2_init(MachineState *machine)
>> DeviceState *dev;
>>
>> dev = qdev_create(NULL, TYPE_STM32F205_SOC);
>> - qdev_prop_set_string(dev, "cpu-model", "cortex-m3");
>> + qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m3"));
>> object_property_set_bool(OBJECT(dev), true, "realized", &error_fatal);
>>
>> armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
>> diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
>> index 503a3b6..b41850e 100644
>> --- a/hw/arm/nseries.c
>> +++ b/hw/arm/nseries.c
>> @@ -1310,7 +1310,7 @@ static void n8x0_init(MachineState *machine,
>> struct n800_s *s = (struct n800_s *) g_malloc0(sizeof(*s));
>> int sdram_size = binfo->ram_size;
>>
>> - s->mpu = omap2420_mpu_init(sysmem, sdram_size, machine->cpu_model);
>> + s->mpu = omap2420_mpu_init(sysmem, sdram_size, machine->cpu_type);
>>
>> /* Setup peripherals
>> *
>> @@ -1425,6 +1425,7 @@ static void n800_class_init(ObjectClass *oc, void *data)
>> mc->desc = "Nokia N800 tablet aka. RX-34 (OMAP2420)";
>> mc->init = n800_init;
>> mc->default_boot_order = "";
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2");
>> }
>>
>> static const TypeInfo n800_type = {
>> @@ -1440,6 +1441,7 @@ static void n810_class_init(ObjectClass *oc, void *data)
>> mc->desc = "Nokia N810 tablet aka. RX-44 (OMAP2420)";
>> mc->init = n810_init;
>> mc->default_boot_order = "";
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2");
>> }
>>
>> static const TypeInfo n810_type = {
>> diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
>> index 04e65ce..b3e7625 100644
>> --- a/hw/arm/omap1.c
>> +++ b/hw/arm/omap1.c
>> @@ -3850,7 +3850,7 @@ static int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s,
>>
>> struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
>> unsigned long sdram_size,
>> - const char *core)
>> + const char *cpu_type)
>> {
>> int i;
>> struct omap_mpu_state_s *s = g_new0(struct omap_mpu_state_s, 1);
>> @@ -3858,12 +3858,9 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
>> DriveInfo *dinfo;
>> SysBusDevice *busdev;
>>
>> - if (!core)
>> - core = "ti925t";
>> -
>> /* Core */
>> s->mpu_model = omap310;
>> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core));
>> + s->cpu = ARM_CPU(cpu_create(cpu_type));
>> s->sdram_size = sdram_size;
>> s->sram_size = OMAP15XX_SRAM_SIZE;
>>
>> diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
>> index 5821477..3f6076e 100644
>> --- a/hw/arm/omap2.c
>> +++ b/hw/arm/omap2.c
>> @@ -2250,7 +2250,7 @@ static const struct dma_irq_map omap2_dma_irq_map[] = {
>>
>> struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
>> unsigned long sdram_size,
>> - const char *core)
>> + const char *cpu_type)
>> {
>> struct omap_mpu_state_s *s = g_new0(struct omap_mpu_state_s, 1);
>> qemu_irq dma_irqs[4];
>> @@ -2261,7 +2261,7 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
>>
>> /* Core */
>> s->mpu_model = omap2420;
>> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core ?: "arm1136-r2"));
>> + s->cpu = ARM_CPU(cpu_create(cpu_type));
>> s->sdram_size = sdram_size;
>> s->sram_size = OMAP242X_SRAM_SIZE;
>>
>> diff --git a/hw/arm/omap_sx1.c b/hw/arm/omap_sx1.c
>> index 9809106..1236ec1 100644
>> --- a/hw/arm/omap_sx1.c
>> +++ b/hw/arm/omap_sx1.c
>> @@ -36,6 +36,7 @@
>> #include "sysemu/block-backend.h"
>> #include "sysemu/qtest.h"
>> #include "exec/address-spaces.h"
>> +#include "cpu.h"
>>
>> /*****************************************************************************/
>> /* Siemens SX1 Cellphone V1 */
>> @@ -120,7 +121,7 @@ static void sx1_init(MachineState *machine, const int version)
>> }
>>
>> mpu = omap310_mpu_init(address_space, sx1_binfo.ram_size,
>> - machine->cpu_model);
>> + machine->cpu_type);
>>
>> /* External Flash (EMIFS) */
>> memory_region_init_ram(flash, NULL, "omap_sx1.flash0-0", flash_size,
>> @@ -223,6 +224,7 @@ static void sx1_machine_v2_class_init(ObjectClass *oc, void *data)
>>
>> mc->desc = "Siemens SX1 (OMAP310) V2";
>> mc->init = sx1_init_v2;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
>> }
>>
>> static const TypeInfo sx1_machine_v2_type = {
>> @@ -237,6 +239,7 @@ static void sx1_machine_v1_class_init(ObjectClass *oc, void *data)
>>
>> mc->desc = "Siemens SX1 (OMAP310) V1";
>> mc->init = sx1_init_v1;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
>> }
>>
>> static const TypeInfo sx1_machine_v1_type = {
>> diff --git a/hw/arm/palm.c b/hw/arm/palm.c
>> index 64cf8ca..862f048 100644
>> --- a/hw/arm/palm.c
>> +++ b/hw/arm/palm.c
>> @@ -29,6 +29,7 @@
>> #include "hw/devices.h"
>> #include "hw/loader.h"
>> #include "exec/address-spaces.h"
>> +#include "cpu.h"
>>
>> static uint32_t static_readb(void *opaque, hwaddr offset)
>> {
>> @@ -195,7 +196,6 @@ static struct arm_boot_info palmte_binfo = {
>>
>> static void palmte_init(MachineState *machine)
>> {
>> - const char *cpu_model = machine->cpu_model;
>> const char *kernel_filename = machine->kernel_filename;
>> const char *kernel_cmdline = machine->kernel_cmdline;
>> const char *initrd_filename = machine->initrd_filename;
>> @@ -211,7 +211,7 @@ static void palmte_init(MachineState *machine)
>> MemoryRegion *flash = g_new(MemoryRegion, 1);
>> MemoryRegion *cs = g_new(MemoryRegion, 4);
>>
>> - mpu = omap310_mpu_init(address_space_mem, sdram_size, cpu_model);
>> + mpu = omap310_mpu_init(address_space_mem, sdram_size, machine->cpu_type);
>>
>> /* External Flash (EMIFS) */
>> memory_region_init_ram(flash, NULL, "palmte.flash", flash_size,
>> @@ -274,6 +274,7 @@ static void palmte_machine_init(MachineClass *mc)
>> {
>> mc->desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)";
>> mc->init = palmte_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
>> }
>>
>> DEFINE_MACHINE("cheetah", palmte_machine_init)
>> diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
>> index c16657d..79b317a 100644
>> --- a/hw/arm/pxa2xx.c
>> +++ b/hw/arm/pxa2xx.c
>> @@ -2052,21 +2052,19 @@ static void pxa2xx_reset(void *opaque, int line, int level)
>>
>> /* Initialise a PXA270 integrated chip (ARM based core). */
>> PXA2xxState *pxa270_init(MemoryRegion *address_space,
>> - unsigned int sdram_size, const char *revision)
>> + unsigned int sdram_size, const char *cpu_type)
>> {
>> PXA2xxState *s;
>> int i;
>> DriveInfo *dinfo;
>> s = g_new0(PXA2xxState, 1);
>>
>> - if (revision && strncmp(revision, "pxa27", 5)) {
>> + if (strncmp(cpu_type, ARM_CPU_TYPE_NAME("pxa27"), 5)) {
>
> Why are you using ARM_CPU_TYPE_NAME here, if you are only
> checking if cpu_type starts with "pxa27"?
>
> I suggest adding a TODO here noting that we implement this using
> either a TYPE_ARM_PXA27 subclass (so we can use
> object_class_dynamic_cast()), or a ARMCPUClass field to identify
> if the CPU is pxa27.
>
>> fprintf(stderr, "Machine requires a PXA27x processor.\n");
>> exit(1);
>> }
>
> This would be another use case for a generic CPU model validation
> mechanism in MachineClass.
>
>
>> - if (!revision)
>> - revision = "pxa270";
>>
>> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, revision));
>> + s->cpu = ARM_CPU(cpu_create(cpu_type));
>> s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
>>
>> /* SDRAM & Internal Memory Storage */
>> @@ -2192,7 +2190,7 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
>>
>> s = g_new0(PXA2xxState, 1);
>>
>> - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, "pxa255"));
>> + s->cpu = ARM_CPU(cpu_create(ARM_CPU_TYPE_NAME("pxa255")));
>> s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
>>
>> /* SDRAM & Internal Memory Storage */
>> diff --git a/hw/arm/realview.c b/hw/arm/realview.c
>> index 76ff557..38e3278 100644
>> --- a/hw/arm/realview.c
>> +++ b/hw/arm/realview.c
>> @@ -55,7 +55,6 @@ static void realview_init(MachineState *machine,
>> {
>> ARMCPU *cpu = NULL;
>> CPUARMState *env;
>> - ObjectClass *cpu_oc;
>> MemoryRegion *sysmem = get_system_memory();
>> MemoryRegion *ram_lo;
>> MemoryRegion *ram_hi = g_new(MemoryRegion, 1);
>> @@ -96,14 +95,8 @@ static void realview_init(MachineState *machine,
>> break;
>> }
>>
>> - cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, machine->cpu_model);
>> - if (!cpu_oc) {
>> - fprintf(stderr, "Unable to find CPU definition\n");
>> - exit(1);
>> - }
>> -
>> for (n = 0; n < smp_cpus; n++) {
>> - Object *cpuobj = object_new(object_class_get_name(cpu_oc));
>> + Object *cpuobj = object_new(machine->cpu_type);
>>
>> /* By default A9,A15 and ARM1176 CPUs have EL3 enabled. This board
>> * does not currently support EL3 so the CPU EL3 property is disabled
>> @@ -359,33 +352,21 @@ static void realview_init(MachineState *machine,
>>
>> static void realview_eb_init(MachineState *machine)
>> {
>> - if (!machine->cpu_model) {
>> - machine->cpu_model = "arm926";
>> - }
>> realview_init(machine, BOARD_EB);
>> }
>>
>> static void realview_eb_mpcore_init(MachineState *machine)
>> {
>> - if (!machine->cpu_model) {
>> - machine->cpu_model = "arm11mpcore";
>> - }
>> realview_init(machine, BOARD_EB_MPCORE);
>> }
>>
>> static void realview_pb_a8_init(MachineState *machine)
>> {
>> - if (!machine->cpu_model) {
>> - machine->cpu_model = "cortex-a8";
>> - }
>> realview_init(machine, BOARD_PB_A8);
>> }
>>
>> static void realview_pbx_a9_init(MachineState *machine)
>> {
>> - if (!machine->cpu_model) {
>> - machine->cpu_model = "cortex-a9";
>> - }
>> realview_init(machine, BOARD_PBX_A9);
>> }
>>
>> @@ -396,6 +377,7 @@ static void realview_eb_class_init(ObjectClass *oc, void *data)
>> mc->desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)";
>> mc->init = realview_eb_init;
>> mc->block_default_type = IF_SCSI;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
>> }
>>
>> static const TypeInfo realview_eb_type = {
>> @@ -412,6 +394,7 @@ static void realview_eb_mpcore_class_init(ObjectClass *oc, void *data)
>> mc->init = realview_eb_mpcore_init;
>> mc->block_default_type = IF_SCSI;
>> mc->max_cpus = 4;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm11mpcore");
>> }
>>
>> static const TypeInfo realview_eb_mpcore_type = {
>> @@ -426,6 +409,7 @@ static void realview_pb_a8_class_init(ObjectClass *oc, void *data)
>>
>> mc->desc = "ARM RealView Platform Baseboard for Cortex-A8";
>> mc->init = realview_pb_a8_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8");
>> }
>>
>> static const TypeInfo realview_pb_a8_type = {
>> @@ -441,6 +425,7 @@ static void realview_pbx_a9_class_init(ObjectClass *oc, void *data)
>> mc->desc = "ARM RealView Platform Baseboard Explore for Cortex-A9";
>> mc->init = realview_pbx_a9_init;
>> mc->max_cpus = 4;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
>> }
>>
>> static const TypeInfo realview_pbx_a9_type = {
>> diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
>> index 7f588ce..b6ddb7c 100644
>> --- a/hw/arm/spitz.c
>> +++ b/hw/arm/spitz.c
>> @@ -30,6 +30,7 @@
>> #include "hw/sysbus.h"
>> #include "exec/address-spaces.h"
>> #include "sysemu/sysemu.h"
>> +#include "cpu.h"
>>
>> #undef REG_FMT
>> #define REG_FMT "0x%02lx"
>> @@ -909,13 +910,10 @@ static void spitz_common_init(MachineState *machine,
>> DeviceState *scp0, *scp1 = NULL;
>> MemoryRegion *address_space_mem = get_system_memory();
>> MemoryRegion *rom = g_new(MemoryRegion, 1);
>> - const char *cpu_model = machine->cpu_model;
>> -
>> - if (!cpu_model)
>> - cpu_model = (model == terrier) ? "pxa270-c5" : "pxa270-c0";
>>
>
> Nice to see this go away.
>
>
>> /* Setup CPU & memory */
>> - mpu = pxa270_init(address_space_mem, spitz_binfo.ram_size, cpu_model);
>> + mpu = pxa270_init(address_space_mem, spitz_binfo.ram_size,
>> + machine->cpu_type);
>>
>> sl_flash_register(mpu, (model == spitz) ? FLASH_128M : FLASH_1024M);
>>
>> @@ -983,6 +981,7 @@ static void akitapda_class_init(ObjectClass *oc, void *data)
>>
>> mc->desc = "Sharp SL-C1000 (Akita) PDA (PXA270)";
>> mc->init = akita_init;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
>> }
>>
>> static const TypeInfo akitapda_type = {
>> @@ -998,6 +997,7 @@ static void spitzpda_class_init(ObjectClass *oc, void *data)
>> mc->desc = "Sharp SL-C3000 (Spitz) PDA (PXA270)";
>> mc->init = spitz_init;
>> mc->block_default_type = IF_IDE;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
>> }
>>
>> static const TypeInfo spitzpda_type = {
>> @@ -1013,6 +1013,7 @@ static void borzoipda_class_init(ObjectClass *oc, void *data)
>> mc->desc = "Sharp SL-C3100 (Borzoi) PDA (PXA270)";
>> mc->init = borzoi_init;
>> mc->block_default_type = IF_IDE;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c0");
>> }
>>
>> static const TypeInfo borzoipda_type = {
>> @@ -1028,6 +1029,7 @@ static void terrierpda_class_init(ObjectClass *oc, void *data)
>> mc->desc = "Sharp SL-C3200 (Terrier) PDA (PXA270)";
>> mc->init = terrier_init;
>> mc->block_default_type = IF_IDE;
>> + mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
>> }
>>
>> static const TypeInfo terrierpda_type = {
>> diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
>> index 408c1a1..c8fa9da 100644
>> --- a/hw/arm/stellaris.c
>> +++ b/hw/arm/stellaris.c
>> @@ -22,6 +22,7 @@
>> #include "sysemu/sysemu.h"
>> #include "hw/char/pl011.h"
>> #include "hw/misc/unimp.h"
>> +#include "cpu.h"
>>
>> #define GPIO_A 0
>> #define GPIO_B 1
>> @@ -1225,8 +1226,7 @@ static stellaris_board_info stellaris_boards[] = {
>> }
>> };
>>
>> -static void stellaris_init(const char *kernel_filename, const char *cpu_model,
>> - stellaris_board_info *board)
>> +static void stellaris_init(MachineState *ms, stellaris_board_info *board)
>> {
>> static const int uart_irq[] = {5, 6, 33, 34};
>> static const int timer_irq[] = {19, 21, 23, 35};
>> @@ -1298,7 +1298,7 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
>> memory_region_add_subregion(system_memory, 0x20000000, sram);
>>
>> nvic = armv7m_init(system_memory, flash_size, NUM_IRQ_LINES,
>> - kernel_filename, cpu_model);
>> + ms->kernel_filename, ms->cpu_type);
>>
>> qdev_connect_gpio_out_named(nvic, "SYSRESETREQ", 0,
>> qemu_allocate_irq(&do_sys_reset, NULL, 0));
>> @@ -1435,16 +1435,12 @@ static void stellaris_init(const char *kernel_filename, const char *cpu_model,
>> /* FIXME: Figure out how to generate these from stellaris_boards. */
>> static void lm3s811evb_init(MachineState *machine)
>> {
>> - const char *cpu_model = machine->cpu_model;
>> - const char *kernel_filename = machine->kernel_filename;
>> - stellaris_init(kernel_filename, cpu_model, &stellaris_boards[0]);
>> + stellaris_init(machine, &stellaris_boards[0]);
>> }
>>
>> static void lm3s6965evb_init(MachineState *machine)
>> {
>> - const char *cpu_model = machine->cpu_model;
>> - const char *kernel_filename = machine->kernel_filename;
>> - stellaris_init(kernel_filename, cpu_model, &stellaris_boards[1]);
>> + stellaris_init(machine, &stellaris_boards[1]);
>> }
>>
>> static void lm3s811evb_class_init(ObjectClass *oc, void *data)
>> @@ -1453,6 +1449,7 @@ static void lm3s811evb_class_init(ObjectClass *oc, void *data)
>>
>>
...
>>
>> static const TypeInfo lm3s6965evb_type = {
>> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
>> index f61e735..1cd6374 100644
>> --- a/hw/arm/stm32f205_soc.c
>> +++ b/hw/arm/stm32f205_soc.c
>> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>>
>> armv7m = DEVICE(&s->armv7m);
>> qdev_prop_set_uint32(armv7m, "num-irq", 96);
>> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
>> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
>> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
>> "memory", &error_abort);
>> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
>> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>> }
>>
>> static Property stm32f205_soc_properties[] = {
>> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
>> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
>
> Same as armv7m: are we 100% sure users are not setting this
> manually?
In an embedded board like this it really doesn't make sense to let the
user overwrite the CPU. The SoC will take it as an option, but the
board (which creates the SoC) just blindly always uses the same CPU.
That feature is more for QOMificatoion then any real reason though.
In saying that I think a warning if the user tries to set the CPU
would make sense. I know that this issues comes up in other ARM boards
(Zynq-7000 has the same issue as well) so maybe a machine property
saying that the board doesn't accept custom CPUs would be a good idea.
Overall I think this patch is moving in the right direction though and
this CPU option being ignored existed before this series.
Thanks,
Alistair
>
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 21:47 ` Alistair Francis
@ 2017-09-05 22:12 ` Eduardo Habkost
2017-09-05 22:46 ` Alistair Francis
2017-09-12 10:53 ` Igor Mammedov
2017-09-12 11:02 ` Igor Mammedov
1 sibling, 2 replies; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-05 22:12 UTC (permalink / raw)
To: Alistair Francis
Cc: Igor Mammedov, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
> On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
[...]
> >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> >> index f61e735..1cd6374 100644
> >> --- a/hw/arm/stm32f205_soc.c
> >> +++ b/hw/arm/stm32f205_soc.c
> >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> >>
> >> armv7m = DEVICE(&s->armv7m);
> >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> >> "memory", &error_abort);
> >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> >> }
> >>
> >> static Property stm32f205_soc_properties[] = {
> >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
> >
> > Same as armv7m: are we 100% sure users are not setting this
> > manually?
>
> In an embedded board like this it really doesn't make sense to let the
> user overwrite the CPU. The SoC will take it as an option, but the
> board (which creates the SoC) just blindly always uses the same CPU.
> That feature is more for QOMificatoion then any real reason though.
>
I'm not talking about -cpu (no user-visible change in the
handling of -cpu should result from this patch), but about
possible cases where the user set the "cpu-model" property using
another mechanism, like -global. Probably it's impossible for an
user to override the property successfully, but I would like to
be sure.
> In saying that I think a warning if the user tries to set the CPU
> would make sense. I know that this issues comes up in other ARM boards
> (Zynq-7000 has the same issue as well) so maybe a machine property
> saying that the board doesn't accept custom CPUs would be a good idea.
Yeah, there are multiple cases in this patch where boards are
validating the CPU model, but not all boards do that. A generic
MachineClass::valid_cpu_types[] field would be useful.
>
> Overall I think this patch is moving in the right direction though and
> this CPU option being ignored existed before this series.
I agree this is going on the right direction. However, I don't
see any board that ignore the CPU option: all of them seem to use
cpu_model when creating the CPUs, already.
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 22:12 ` Eduardo Habkost
@ 2017-09-05 22:46 ` Alistair Francis
2017-09-06 0:16 ` Alistair Francis
2017-09-09 20:30 ` Eduardo Habkost
2017-09-12 10:53 ` Igor Mammedov
1 sibling, 2 replies; 37+ messages in thread
From: Alistair Francis @ 2017-09-05 22:46 UTC (permalink / raw)
To: Eduardo Habkost
Cc: Igor Mammedov, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 5, 2017 at 3:12 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
>> On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> [...]
>> >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
>> >> index f61e735..1cd6374 100644
>> >> --- a/hw/arm/stm32f205_soc.c
>> >> +++ b/hw/arm/stm32f205_soc.c
>> >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>> >>
>> >> armv7m = DEVICE(&s->armv7m);
>> >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
>> >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
>> >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
>> >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
>> >> "memory", &error_abort);
>> >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
>> >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>> >> }
>> >>
>> >> static Property stm32f205_soc_properties[] = {
>> >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
>> >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
>> >
>> > Same as armv7m: are we 100% sure users are not setting this
>> > manually?
>>
>> In an embedded board like this it really doesn't make sense to let the
>> user overwrite the CPU. The SoC will take it as an option, but the
>> board (which creates the SoC) just blindly always uses the same CPU.
>> That feature is more for QOMificatoion then any real reason though.
>>
>
> I'm not talking about -cpu (no user-visible change in the
> handling of -cpu should result from this patch), but about
> possible cases where the user set the "cpu-model" property using
> another mechanism, like -global. Probably it's impossible for an
> user to override the property successfully, but I would like to
> be sure.
Ah, that is trickier.
I guess that is possible to do, but the object setting logic should
handle the error gracefully and inform the user of the error.
>
>
>> In saying that I think a warning if the user tries to set the CPU
>> would make sense. I know that this issues comes up in other ARM boards
>> (Zynq-7000 has the same issue as well) so maybe a machine property
>> saying that the board doesn't accept custom CPUs would be a good idea.
>
> Yeah, there are multiple cases in this patch where boards are
> validating the CPU model, but not all boards do that. A generic
> MachineClass::valid_cpu_types[] field would be useful.
>
>>
>> Overall I think this patch is moving in the right direction though and
>> this CPU option being ignored existed before this series.
>
> I agree this is going on the right direction. However, I don't
> see any board that ignore the CPU option: all of them seem to use
> cpu_model when creating the CPUs, already.
The Netduino2 will ignore any CPU options and always use a Cortex-m3.
I was wrong about Zynq-7000 though, it does respect the -cpu option.
Thanks,
Alistair
>
> --
> Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 22:46 ` Alistair Francis
@ 2017-09-06 0:16 ` Alistair Francis
2017-09-09 20:30 ` Eduardo Habkost
1 sibling, 0 replies; 37+ messages in thread
From: Alistair Francis @ 2017-09-06 0:16 UTC (permalink / raw)
To: Eduardo Habkost
Cc: Igor Mammedov, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 5, 2017 at 3:46 PM, Alistair Francis <alistair23@gmail.com> wrote:
> On Tue, Sep 5, 2017 at 3:12 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
>> On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
>>> On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
>> [...]
>>> >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
>>> >> index f61e735..1cd6374 100644
>>> >> --- a/hw/arm/stm32f205_soc.c
>>> >> +++ b/hw/arm/stm32f205_soc.c
>>> >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>>> >>
>>> >> armv7m = DEVICE(&s->armv7m);
>>> >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
>>> >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
>>> >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
>>> >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
>>> >> "memory", &error_abort);
>>> >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
>>> >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>>> >> }
>>> >>
>>> >> static Property stm32f205_soc_properties[] = {
>>> >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
>>> >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
>>> >
>>> > Same as armv7m: are we 100% sure users are not setting this
>>> > manually?
>>>
>>> In an embedded board like this it really doesn't make sense to let the
>>> user overwrite the CPU. The SoC will take it as an option, but the
>>> board (which creates the SoC) just blindly always uses the same CPU.
>>> That feature is more for QOMificatoion then any real reason though.
>>>
>>
>> I'm not talking about -cpu (no user-visible change in the
>> handling of -cpu should result from this patch), but about
>> possible cases where the user set the "cpu-model" property using
>> another mechanism, like -global. Probably it's impossible for an
>> user to override the property successfully, but I would like to
>> be sure.
>
> Ah, that is trickier.
>
> I guess that is possible to do, but the object setting logic should
> handle the error gracefully and inform the user of the error.
>
>>
>>
>>> In saying that I think a warning if the user tries to set the CPU
>>> would make sense. I know that this issues comes up in other ARM boards
>>> (Zynq-7000 has the same issue as well) so maybe a machine property
>>> saying that the board doesn't accept custom CPUs would be a good idea.
>>
>> Yeah, there are multiple cases in this patch where boards are
>> validating the CPU model, but not all boards do that. A generic
>> MachineClass::valid_cpu_types[] field would be useful.
I just sent a RFC out that does this, let me know what you think.
The cover letter is called: "Add a valid_cpu_types property"
Thanks,
Alistair
>>
>>>
>>> Overall I think this patch is moving in the right direction though and
>>> this CPU option being ignored existed before this series.
>>
>> I agree this is going on the right direction. However, I don't
>> see any board that ignore the CPU option: all of them seem to use
>> cpu_model when creating the CPUs, already.
>
> The Netduino2 will ignore any CPU options and always use a Cortex-m3.
> I was wrong about Zynq-7000 though, it does respect the -cpu option.
>
> Thanks,
> Alistair
>
>>
>> --
>> Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 22:46 ` Alistair Francis
2017-09-06 0:16 ` Alistair Francis
@ 2017-09-09 20:30 ` Eduardo Habkost
2017-09-09 22:41 ` Peter Maydell
2017-09-12 10:22 ` Igor Mammedov
1 sibling, 2 replies; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-09 20:30 UTC (permalink / raw)
To: Alistair Francis
Cc: Igor Mammedov, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 05, 2017 at 03:46:07PM -0700, Alistair Francis wrote:
> On Tue, Sep 5, 2017 at 3:12 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
> >> On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > [...]
> >> >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> >> >> index f61e735..1cd6374 100644
> >> >> --- a/hw/arm/stm32f205_soc.c
> >> >> +++ b/hw/arm/stm32f205_soc.c
> >> >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> >> >>
> >> >> armv7m = DEVICE(&s->armv7m);
> >> >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> >> >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> >> >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> >> >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> >> >> "memory", &error_abort);
> >> >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> >> >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> >> >> }
> >> >>
> >> >> static Property stm32f205_soc_properties[] = {
> >> >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> >> >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
> >> >
> >> > Same as armv7m: are we 100% sure users are not setting this
> >> > manually?
> >>
> >> In an embedded board like this it really doesn't make sense to let the
> >> user overwrite the CPU. The SoC will take it as an option, but the
> >> board (which creates the SoC) just blindly always uses the same CPU.
> >> That feature is more for QOMificatoion then any real reason though.
> >>
> >
> > I'm not talking about -cpu (no user-visible change in the
> > handling of -cpu should result from this patch), but about
> > possible cases where the user set the "cpu-model" property using
> > another mechanism, like -global. Probably it's impossible for an
> > user to override the property successfully, but I would like to
> > be sure.
>
> Ah, that is trickier.
>
> I guess that is possible to do, but the object setting logic should
> handle the error gracefully and inform the user of the error.
After looking at the code more closely, I think we can be 100%
sure the user doesn't rely on the property, because:
* TYPE_ARMV7M and TYPE_STM32F205_SOC are both sysbus devices
with user_creatable=false, so the user can't instantiate them
directly;
* The only places where those objects are realized inside the
code are:
* mps2_common_init()
* netduino2_init()
* stm32f205_soc_realize()
* armv7m_init()
Those functions always set the "cpu-model" property immediately
before realize.
This means any value set by the user (e.g. using -global) would
be always overwritten before realize.
However, I have a suggestion for Igor: making a separate patch
that renames the existing property to "x-cpu-model", and using
"x-cpu-type" in this series. This way we will explicitly
document the fact that the property is not a stable
user/management interface.
>
> >
> >
> >> In saying that I think a warning if the user tries to set the CPU
> >> would make sense. I know that this issues comes up in other ARM boards
> >> (Zynq-7000 has the same issue as well) so maybe a machine property
> >> saying that the board doesn't accept custom CPUs would be a good idea.
> >
> > Yeah, there are multiple cases in this patch where boards are
> > validating the CPU model, but not all boards do that. A generic
> > MachineClass::valid_cpu_types[] field would be useful.
> >
> >>
> >> Overall I think this patch is moving in the right direction though and
> >> this CPU option being ignored existed before this series.
> >
> > I agree this is going on the right direction. However, I don't
> > see any board that ignore the CPU option: all of them seem to use
> > cpu_model when creating the CPUs, already.
>
> The Netduino2 will ignore any CPU options and always use a Cortex-m3.
> I was wrong about Zynq-7000 though, it does respect the -cpu option.
>
> Thanks,
> Alistair
>
> >
> > --
> > Eduardo
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-09 20:30 ` Eduardo Habkost
@ 2017-09-09 22:41 ` Peter Maydell
2017-09-09 23:22 ` Eduardo Habkost
2017-09-12 10:22 ` Igor Mammedov
1 sibling, 1 reply; 37+ messages in thread
From: Peter Maydell @ 2017-09-09 22:41 UTC (permalink / raw)
To: Eduardo Habkost
Cc: Alistair Francis, Igor Mammedov, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On 9 September 2017 at 21:30, Eduardo Habkost <ehabkost@redhat.com> wrote:
> However, I have a suggestion for Igor: making a separate patch
> that renames the existing property to "x-cpu-model", and using
> "x-cpu-type" in this series. This way we will explicitly
> document the fact that the property is not a stable
> user/management interface.
We have lots and lots of properties on non-user-instantiated
devices that aren't intended as user level configurable
things...
thanks
-- PMM
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-09 22:41 ` Peter Maydell
@ 2017-09-09 23:22 ` Eduardo Habkost
0 siblings, 0 replies; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-09 23:22 UTC (permalink / raw)
To: Peter Maydell
Cc: Alistair Francis, Igor Mammedov, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Sat, Sep 09, 2017 at 11:41:55PM +0100, Peter Maydell wrote:
> On 9 September 2017 at 21:30, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > However, I have a suggestion for Igor: making a separate patch
> > that renames the existing property to "x-cpu-model", and using
> > "x-cpu-type" in this series. This way we will explicitly
> > document the fact that the property is not a stable
> > user/management interface.
>
> We have lots and lots of properties on non-user-instantiated
> devices that aren't intended as user level configurable
> things...
Well, we need to deal with them somehow, otherwise we have no
simple way to know if removing/renaming a property is really safe
or not.
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-05 20:19 ` Eduardo Habkost
@ 2017-09-11 14:23 ` Igor Mammedov
0 siblings, 0 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-11 14:23 UTC (permalink / raw)
To: Eduardo Habkost
Cc: qemu-devel, Peter Maydell, Anthony Green, Mark Cave-Ayland,
Max Filippov, Edgar E. Iglesias, Guan Xuetao, Jia Liu,
Magnus Damm, Alexander Graf, Hervé Poussineau,
Richard Henderson, Artyom Tarasenko, Andrew Jones, Riku Voipio,
Fabien Chouteau, Jan Kiszka, Yongbok Kim, Stafford Horne,
David Gibson, Thomas Huth, Bastian Koppelmann, Laurent Vivier,
Michael Walle, Aurelien Jarno
On Tue, 5 Sep 2017 17:19:56 -0300
Eduardo Habkost <ehabkost@redhat.com> wrote:
> On Mon, Sep 04, 2017 at 04:00:58PM +0200, Igor Mammedov wrote:
> > Almost every user of cpu_generic_init() checks for
> > returned NULL and then reports failure in a custom way
> > and aborts process.
> > Some users assume that call can't fail and don't check
> > for failure, though they should have checked for it.
> >
> > In either cases cpu_generic_init() failure is fatal,
> > so instead of checking for failure and reporting
> > it various ways, make cpu_generic_init() report
> > errors in consistent way and terminate QEMU on failure.
> >
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > ---
> > Even though it's tree wide change, it's trivial so all
> > affected call sites are included within one patch.
> >
> [...]
> > diff --git a/qom/cpu.c b/qom/cpu.c
> > index d715890..307d638 100644
> > --- a/qom/cpu.c
> > +++ b/qom/cpu.c
> > @@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
> > if (err != NULL) {
> > error_report_err(err);
> > object_unref(OBJECT(cpu));
> > - return NULL;
> > + exit(EXIT_FAILURE);
>
> Isn't it simpler to use &error_fatal?
sure, I'll fix it up.
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-04 15:15 ` Philippe Mathieu-Daudé
@ 2017-09-11 14:30 ` Igor Mammedov
0 siblings, 0 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-11 14:30 UTC (permalink / raw)
To: Philippe Mathieu-Daudé
Cc: qemu-devel, Peter Maydell, Anthony Green, Mark Cave-Ayland,
Max Filippov, Edgar E. Iglesias, Guan Xuetao, Jia Liu,
Magnus Damm, Alexander Graf, Hervé Poussineau,
Richard Henderson, Artyom Tarasenko, Andrew Jones,
Eduardo Habkost, Riku Voipio, Fabien Chouteau, Jan Kiszka,
Yongbok Kim, Stafford Horne, David Gibson, Thomas Huth,
Bastian Koppelmann, Laurent Vivier, Michael Walle,
Aurelien Jarno
On Mon, 4 Sep 2017 12:15:13 -0300
Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> On 09/04/2017 11:00 AM, Igor Mammedov wrote:
> > Almost every user of cpu_generic_init() checks for
> > returned NULL and then reports failure in a custom way
> > and aborts process.
> > Some users assume that call can't fail and don't check
> > for failure, though they should have checked for it.
> >
> > In either cases cpu_generic_init() failure is fatal,
> > so instead of checking for failure and reporting
> > it various ways, make cpu_generic_init() report
> > errors in consistent way and terminate QEMU on failure.
> >
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > ---
> > Even though it's tree wide change, it's trivial so all
> > affected call sites are included within one patch.
> >
> > CC: Richard Henderson <rth@twiddle.net>
> > CC: Jan Kiszka <jan.kiszka@web.de>
> > CC: Peter Maydell <peter.maydell@linaro.org>
> > CC: Andrzej Zaborowski <balrogg@gmail.com>
> > CC: Michael Walle <michael@walle.cc>
> > CC: Thomas Huth <huth@tuxfamily.org>
> > CC: Aurelien Jarno <aurelien@aurel32.net>
> > CC: Yongbok Kim <yongbok.kim@imgtec.com>
> > CC: "Hervé Poussineau" <hpoussin@reactos.org>
> > CC: Anthony Green <green@moxielogic.com>
> > CC: Jia Liu <proljc@gmail.com>
> > CC: Stafford Horne <shorne@gmail.com>
> > CC: Alexander Graf <agraf@suse.de>
> > CC: David Gibson <david@gibson.dropbear.id.au>
> > CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
> > CC: Magnus Damm <magnus.damm@gmail.com>
> > CC: Fabien Chouteau <chouteau@adacore.com>
> > CC: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
> > CC: Artyom Tarasenko <atar4qemu@gmail.com>
> > CC: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
> > CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
> > CC: Max Filippov <jcmvbkbc@gmail.com>
> > CC: Riku Voipio <riku.voipio@iki.fi>
> > CC: Laurent Vivier <laurent@vivier.eu>
> >
> > ---
> > include/qom/cpu.h | 3 ++-
> > bsd-user/main.c | 4 ----
> > hw/alpha/dp264.c | 4 ----
> > hw/arm/musicpal.c | 4 ----
> > hw/arm/omap1.c | 4 ----
> > hw/arm/omap2.c | 4 ----
> > hw/arm/pxa2xx.c | 8 --------
> > hw/arm/strongarm.c | 5 -----
> > hw/lm32/lm32_boards.c | 8 --------
> > hw/lm32/milkymist.c | 4 ----
> > hw/m68k/an5206.c | 4 ----
> > hw/m68k/mcf5208.c | 4 ----
> > hw/mips/cps.c | 4 ----
> > hw/mips/mips_fulong2e.c | 4 ----
> > hw/mips/mips_jazz.c | 4 ----
> > hw/mips/mips_malta.c | 4 ----
> > hw/mips/mips_mipssim.c | 4 ----
> > hw/mips/mips_r4k.c | 4 ----
> > hw/moxie/moxiesim.c | 4 ----
> > hw/openrisc/openrisc_sim.c | 4 ----
> > hw/ppc/e500.c | 4 ----
> > hw/ppc/mac_newworld.c | 4 ----
> > hw/ppc/mac_oldworld.c | 4 ----
> > hw/ppc/ppc440_bamboo.c | 4 ----
> > hw/ppc/ppc4xx_devs.c | 5 -----
> > hw/ppc/prep.c | 9 ---------
> > hw/ppc/virtex_ml507.c | 4 ----
> > hw/sh4/r2d.c | 4 ----
> > hw/sh4/shix.c | 4 ----
> > hw/sparc/leon3.c | 4 ----
> > hw/sparc/sun4m.c | 4 ----
> > hw/sparc64/sparc64.c | 4 ----
> > hw/tricore/tricore_testboard.c | 4 ----
> > hw/unicore32/puv3.c | 4 ----
> > hw/xtensa/sim.c | 5 -----
> > hw/xtensa/xtfpga.c | 5 -----
> > linux-user/main.c | 4 ----
> > qom/cpu.c | 13 ++++++-------
> > 38 files changed, 8 insertions(+), 169 deletions(-)
> >
> > diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> > index a92a7d2..392ae75 100644
> > --- a/include/qom/cpu.h
> > +++ b/include/qom/cpu.h
> > @@ -649,7 +649,8 @@ CPUState *cpu_create(const char *typename);
> > *
> > * processes optional parameters and registers them as global properties
> > *
> > - * Returns: type of CPU to create or %NULL if an error occurred.
> > + * Returns: type of CPU to create or prints error and terminates process
> > + * if an error occurred.
> > */
> > const char *cpu_parse_features(const char *typename, const char *cpu_model);
> >
> > diff --git a/bsd-user/main.c b/bsd-user/main.c
> > index 8a6706a..836daac 100644
> > --- a/bsd-user/main.c
> > +++ b/bsd-user/main.c
> > @@ -902,10 +902,6 @@ int main(int argc, char **argv)
> > /* NOTE: we need to init the CPU at this stage to get
> > qemu_host_page_size */
> > cpu = cpu_init(cpu_model);
> > - if (!cpu) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > env = cpu->env_ptr;
> > #if defined(TARGET_SPARC) || defined(TARGET_PPC)
> > cpu_reset(cpu);
> > diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c
> > index 1c5a177..1b12130 100644
> > --- a/hw/alpha/dp264.c
> > +++ b/hw/alpha/dp264.c
> > @@ -68,10 +68,6 @@ static void clipper_init(MachineState *machine)
> > memset(cpus, 0, sizeof(cpus));
> > for (i = 0; i < smp_cpus; ++i) {
> > cpus[i] = ALPHA_CPU(cpu_generic_init(TYPE_ALPHA_CPU, cpu_model));
> > - if (!cpus[i]) {
> > - error_report("Unable to find CPU definition");
> > - exit(1);
> > - }
> > }
> >
> > cpus[0]->env.trap_arg0 = ram_size;
> > diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
> > index a8b3d46..64c8e09 100644
> > --- a/hw/arm/musicpal.c
> > +++ b/hw/arm/musicpal.c
> > @@ -1594,10 +1594,6 @@ static void musicpal_init(MachineState *machine)
> > cpu_model = "arm926";
> > }
> > cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, cpu_model));
> > - if (!cpu) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> >
> > /* For now we use a fixed - the original - RAM size */
> > memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",
> > diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
> > index 400ba30..04e65ce 100644
> > --- a/hw/arm/omap1.c
> > +++ b/hw/arm/omap1.c
> > @@ -3864,10 +3864,6 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
> > /* Core */
> > s->mpu_model = omap310;
> > s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core));
> > - if (s->cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > s->sdram_size = sdram_size;
> > s->sram_size = OMAP15XX_SRAM_SIZE;
> >
> > diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
> > index ece25ae..5821477 100644
> > --- a/hw/arm/omap2.c
> > +++ b/hw/arm/omap2.c
> > @@ -2262,10 +2262,6 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
> > /* Core */
> > s->mpu_model = omap2420;
> > s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core ?: "arm1136-r2"));
> > - if (s->cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > s->sdram_size = sdram_size;
> > s->sram_size = OMAP242X_SRAM_SIZE;
> >
> > diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
> > index b0ac3cf..c16657d 100644
> > --- a/hw/arm/pxa2xx.c
> > +++ b/hw/arm/pxa2xx.c
> > @@ -2067,10 +2067,6 @@ PXA2xxState *pxa270_init(MemoryRegion *address_space,
> > revision = "pxa270";
> >
> > s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, revision));
> > - if (s->cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
> >
> > /* SDRAM & Internal Memory Storage */
> > @@ -2197,10 +2193,6 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
> > s = g_new0(PXA2xxState, 1);
> >
> > s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, "pxa255"));
> > - if (s->cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
> >
> > /* SDRAM & Internal Memory Storage */
> > diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
> > index 884242b..c1145dd 100644
> > --- a/hw/arm/strongarm.c
> > +++ b/hw/arm/strongarm.c
> > @@ -1599,11 +1599,6 @@ StrongARMState *sa1110_init(MemoryRegion *sysmem,
> >
> > s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
> >
> > - if (!s->cpu) {
> > - error_report("Unable to find CPU definition");
> > - exit(1);
> > - }
> > -
> > memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
> > sdram_size);
> > memory_region_add_subregion(sysmem, SA_SDCS0, &s->sdram);
> > diff --git a/hw/lm32/lm32_boards.c b/hw/lm32/lm32_boards.c
> > index eccf0ac..b0bb3ef 100644
> > --- a/hw/lm32/lm32_boards.c
> > +++ b/hw/lm32/lm32_boards.c
> > @@ -105,10 +105,6 @@ static void lm32_evr_init(MachineState *machine)
> > cpu_model = "lm32-full";
> > }
> > cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
> > - exit(1);
> > - }
> >
> > env = &cpu->env;
> > reset_info->cpu = cpu;
> > @@ -206,10 +202,6 @@ static void lm32_uclinux_init(MachineState *machine)
> > cpu_model = "lm32-full";
> > }
> > cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
> > - exit(1);
> > - }
> >
> > env = &cpu->env;
> > reset_info->cpu = cpu;
> > diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c
> > index dffd879..4db4d2d 100644
> > --- a/hw/lm32/milkymist.c
> > +++ b/hw/lm32/milkymist.c
> > @@ -112,10 +112,6 @@ milkymist_init(MachineState *machine)
> > cpu_model = "lm32-full";
> > }
> > cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
> > - exit(1);
> > - }
> >
> > env = &cpu->env;
> > reset_info->cpu = cpu;
> > diff --git a/hw/m68k/an5206.c b/hw/m68k/an5206.c
> > index 7b9b15d..9002c46 100644
> > --- a/hw/m68k/an5206.c
> > +++ b/hw/m68k/an5206.c
> > @@ -43,10 +43,6 @@ static void an5206_init(MachineState *machine)
> > cpu_model = "m5206";
> > }
> > cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
> > - if (!cpu) {
> > - error_report("Unable to find m68k CPU definition");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > /* Initialize CPU registers. */
> > diff --git a/hw/m68k/mcf5208.c b/hw/m68k/mcf5208.c
> > index 1a0f180..b9dde75 100644
> > --- a/hw/m68k/mcf5208.c
> > +++ b/hw/m68k/mcf5208.c
> > @@ -233,10 +233,6 @@ static void mcf5208evb_init(MachineState *machine)
> > cpu_model = "m5208";
> > }
> > cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
> > - if (!cpu) {
> > - fprintf(stderr, "Unable to find m68k CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > /* Initialize CPU registers. */
> > diff --git a/hw/mips/cps.c b/hw/mips/cps.c
> > index 4ef337d..79d4c5e 100644
> > --- a/hw/mips/cps.c
> > +++ b/hw/mips/cps.c
> > @@ -72,10 +72,6 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
> >
> > for (i = 0; i < s->num_vp; i++) {
> > cpu = cpu_mips_init(s->cpu_model);
> > - if (cpu == NULL) {
> > - error_setg(errp, "%s: CPU initialization failed", __func__);
> > - return;
> > - }
> >
> > /* Init internal devices */
> > cpu_mips_irq_init_cpu(cpu);
> > diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
> > index 3532399..439a3d7 100644
> > --- a/hw/mips/mips_fulong2e.c
> > +++ b/hw/mips/mips_fulong2e.c
> > @@ -281,10 +281,6 @@ static void mips_fulong2e_init(MachineState *machine)
> > cpu_model = "Loongson-2E";
> > }
> > cpu = cpu_mips_init(cpu_model);
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > qemu_register_reset(main_cpu_reset, cpu);
> > diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
> > index df2262a..ae10670 100644
> > --- a/hw/mips/mips_jazz.c
> > +++ b/hw/mips/mips_jazz.c
> > @@ -152,10 +152,6 @@ static void mips_jazz_init(MachineState *machine,
> > cpu_model = "R4000";
> > }
> > cpu = cpu_mips_init(cpu_model);
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> > qemu_register_reset(main_cpu_reset, cpu);
> >
> > diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> > index af678f5..c82e0af 100644
> > --- a/hw/mips/mips_malta.c
> > +++ b/hw/mips/mips_malta.c
> > @@ -932,10 +932,6 @@ static void create_cpu_without_cps(const char *cpu_model,
> >
> > for (i = 0; i < smp_cpus; i++) {
> > cpu = cpu_mips_init(cpu_model);
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> >
> > /* Init internal devices */
> > cpu_mips_irq_init_cpu(cpu);
> > diff --git a/hw/mips/mips_mipssim.c b/hw/mips/mips_mipssim.c
> > index 07fc4c2..49cd38d 100644
> > --- a/hw/mips/mips_mipssim.c
> > +++ b/hw/mips/mips_mipssim.c
> > @@ -164,10 +164,6 @@ mips_mipssim_init(MachineState *machine)
> > #endif
> > }
> > cpu = cpu_mips_init(cpu_model);
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > reset_info = g_malloc0(sizeof(ResetData));
> > diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c
> > index 2f5ced7..60da607 100644
> > --- a/hw/mips/mips_r4k.c
> > +++ b/hw/mips/mips_r4k.c
> > @@ -194,10 +194,6 @@ void mips_r4k_init(MachineState *machine)
> > #endif
> > }
> > cpu = cpu_mips_init(cpu_model);
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > reset_info = g_malloc0(sizeof(ResetData));
> > diff --git a/hw/moxie/moxiesim.c b/hw/moxie/moxiesim.c
> > index 4c27b45..5ea8dd3 100644
> > --- a/hw/moxie/moxiesim.c
> > +++ b/hw/moxie/moxiesim.c
> > @@ -119,10 +119,6 @@ static void moxiesim_init(MachineState *machine)
> > cpu_model = "MoxieLite-moxie-cpu";
> > }
> > cpu = MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
> > - if (!cpu) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > qemu_register_reset(main_cpu_reset, cpu);
> > diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
> > index 243d802..86bf284 100644
> > --- a/hw/openrisc/openrisc_sim.c
> > +++ b/hw/openrisc/openrisc_sim.c
> > @@ -110,10 +110,6 @@ static void openrisc_sim_init(MachineState *machine)
> >
> > for (n = 0; n < smp_cpus; n++) {
> > cpu = OPENRISC_CPU(cpu_generic_init(TYPE_OPENRISC_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition!\n");
> > - exit(1);
> > - }
> > qemu_register_reset(main_cpu_reset, cpu);
> > main_cpu_reset(cpu);
> > }
> > diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
> > index f0596f3..fc4786c 100644
> > --- a/hw/ppc/e500.c
> > +++ b/hw/ppc/e500.c
> > @@ -821,10 +821,6 @@ void ppce500_init(MachineState *machine, PPCE500Params *params)
> >
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> > machine->cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to initialize CPU!\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> > cs = CPU(cpu);
> >
> > diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
> > index d466634..33b46cb 100644
> > --- a/hw/ppc/mac_newworld.c
> > +++ b/hw/ppc/mac_newworld.c
> > @@ -189,10 +189,6 @@ static void ppc_core99_init(MachineState *machine)
> > for (i = 0; i < smp_cpus; i++) {
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> > machine->cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find PowerPC CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > /* Set time-base frequency to 100 Mhz */
> > diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
> > index fcac399..193b904 100644
> > --- a/hw/ppc/mac_oldworld.c
> > +++ b/hw/ppc/mac_oldworld.c
> > @@ -118,10 +118,6 @@ static void ppc_heathrow_init(MachineState *machine)
> > for (i = 0; i < smp_cpus; i++) {
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> > machine->cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find PowerPC CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > /* Set time-base frequency to 16.6 Mhz */
> > diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
> > index ca26398..f92d47f 100644
> > --- a/hw/ppc/ppc440_bamboo.c
> > +++ b/hw/ppc/ppc440_bamboo.c
> > @@ -187,10 +187,6 @@ static void bamboo_init(MachineState *machine)
> > machine->cpu_model = "440EP";
> > }
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to initialize CPU!\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > if (env->mmu_model != POWERPC_MMU_BOOKE) {
> > diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c
> > index 6b38ed7..88f3d4c 100644
> > --- a/hw/ppc/ppc4xx_devs.c
> > +++ b/hw/ppc/ppc4xx_devs.c
> > @@ -57,11 +57,6 @@ PowerPCCPU *ppc4xx_init(const char *cpu_model,
> >
> > /* init CPUs */
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find PowerPC %s CPU definition\n",
> > - cpu_model);
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */
> > diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
> > index 00f3321..94138a4 100644
> > --- a/hw/ppc/prep.c
> > +++ b/hw/ppc/prep.c
> > @@ -522,10 +522,6 @@ static void ppc_prep_init(MachineState *machine)
> > for (i = 0; i < smp_cpus; i++) {
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
> > machine->cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find PowerPC CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > if (env->flags & POWERPC_FLAG_RTC_CLK) {
> > @@ -726,11 +722,6 @@ static void ibm_40p_init(MachineState *machine)
> > machine->cpu_model = "604";
> > }
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
> > - if (!cpu) {
> > - error_report("could not initialize CPU '%s'",
> > - machine->cpu_model);
> > - exit(1);
> > - }
> > env = &cpu->env;
> > if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
> > error_report("only 6xx bus is supported on this machine");
> > diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
> > index d5fdc16..ed9b406 100644
> > --- a/hw/ppc/virtex_ml507.c
> > +++ b/hw/ppc/virtex_ml507.c
> > @@ -97,10 +97,6 @@ static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size,
> > qemu_irq *irqs;
> >
> > cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to initialize CPU!\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > ppc_booke_timers_init(cpu, sysclk, 0/* no flags */);
> > diff --git a/hw/sh4/r2d.c b/hw/sh4/r2d.c
> > index 22bc534..16b9ed2 100644
> > --- a/hw/sh4/r2d.c
> > +++ b/hw/sh4/r2d.c
> > @@ -247,10 +247,6 @@ static void r2d_init(MachineState *machine)
> > }
> >
> > cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > reset_info = g_malloc0(sizeof(ResetData));
> > diff --git a/hw/sh4/shix.c b/hw/sh4/shix.c
> > index 7f8a4b6..50ee36a 100644
> > --- a/hw/sh4/shix.c
> > +++ b/hw/sh4/shix.c
> > @@ -57,10 +57,6 @@ static void shix_init(MachineState *machine)
> > cpu_model = "any";
> >
> > cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(1);
> > - }
> >
> > /* Allocate memory space */
> > memory_region_init_ram(rom, NULL, "shix.rom", 0x4000, &error_fatal);
> > diff --git a/hw/sparc/leon3.c b/hw/sparc/leon3.c
> > index 56512ec..ec2816b 100644
> > --- a/hw/sparc/leon3.c
> > +++ b/hw/sparc/leon3.c
> > @@ -127,10 +127,6 @@ static void leon3_generic_hw_init(MachineState *machine)
> > }
> >
> > cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > cpu_sparc_set_id(env, 0);
> > diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
> > index cf47dca..e1bdd48 100644
> > --- a/hw/sparc/sun4m.c
> > +++ b/hw/sparc/sun4m.c
> > @@ -798,10 +798,6 @@ static void cpu_devinit(const char *cpu_model, unsigned int id,
> > CPUSPARCState *env;
> >
> > cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > cpu_sparc_set_id(env, id);
> > diff --git a/hw/sparc64/sparc64.c b/hw/sparc64/sparc64.c
> > index ecf38a4..097d529 100644
> > --- a/hw/sparc64/sparc64.c
> > +++ b/hw/sparc64/sparc64.c
> > @@ -354,10 +354,6 @@ SPARCCPU *sparc64_cpu_devinit(const char *cpu_model,
> > cpu_model = default_cpu_model;
> > }
> > cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - fprintf(stderr, "Unable to find Sparc CPU definition\n");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > env->tick = cpu_timer_create("tick", cpu, tick_irq,
> > diff --git a/hw/tricore/tricore_testboard.c b/hw/tricore/tricore_testboard.c
> > index 3fcd8bb..0486f8a 100644
> > --- a/hw/tricore/tricore_testboard.c
> > +++ b/hw/tricore/tricore_testboard.c
> > @@ -75,10 +75,6 @@ static void tricore_testboard_init(MachineState *machine, int board_id)
> > machine->cpu_model = "tc1796";
> > }
> > cpu = TRICORE_CPU(cpu_generic_init(TYPE_TRICORE_CPU, machine->cpu_model));
> > - if (!cpu) {
> > - error_report("Unable to find CPU definition");
> > - exit(1);
> > - }
> > env = &cpu->env;
> > memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
> > 2 * 1024 * 1024, &error_fatal);
> > diff --git a/hw/unicore32/puv3.c b/hw/unicore32/puv3.c
> > index eb9862f..504ea46 100644
> > --- a/hw/unicore32/puv3.c
> > +++ b/hw/unicore32/puv3.c
> > @@ -128,10 +128,6 @@ static void puv3_init(MachineState *machine)
> > }
> >
> > cpu = UNICORE32_CPU(cpu_generic_init(TYPE_UNICORE32_CPU, cpu_model));
> > - if (!cpu) {
> > - error_report("Unable to find CPU definition");
> > - exit(1);
> > - }
> > env = &cpu->env;
> >
> > puv3_soc_init(env);
> > diff --git a/hw/xtensa/sim.c b/hw/xtensa/sim.c
> > index 1b4767f..b3580b1 100644
> > --- a/hw/xtensa/sim.c
> > +++ b/hw/xtensa/sim.c
> > @@ -85,11 +85,6 @@ static void xtensa_sim_init(MachineState *machine)
> >
> > for (n = 0; n < smp_cpus; n++) {
> > cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - error_report("unable to find CPU definition '%s'",
> > - cpu_model);
> > - exit(EXIT_FAILURE);
> > - }
> > env = &cpu->env;
> >
> > env->sregs[PRID] = n;
> > diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
> > index 182ec1e..a19cceb 100644
> > --- a/hw/xtensa/xtfpga.c
> > +++ b/hw/xtensa/xtfpga.c
> > @@ -233,11 +233,6 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
> >
> > for (n = 0; n < smp_cpus; n++) {
> > cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
> > - if (cpu == NULL) {
> > - error_report("unable to find CPU definition '%s'",
> > - cpu_model);
> > - exit(EXIT_FAILURE);
> > - }
> > env = &cpu->env;
> >
> > env->sregs[PRID] = n;
> > diff --git a/linux-user/main.c b/linux-user/main.c
> > index 03666ef..829f974 100644
> > --- a/linux-user/main.c
> > +++ b/linux-user/main.c
> > @@ -4323,10 +4323,6 @@ int main(int argc, char **argv, char **envp)
> > /* NOTE: we need to init the CPU at this stage to get
> > qemu_host_page_size */
> > cpu = cpu_init(cpu_model);
> > - if (!cpu) {
> > - fprintf(stderr, "Unable to find CPU definition\n");
> > - exit(EXIT_FAILURE);
> > - }
> > env = cpu->env_ptr;
> > cpu_reset(cpu);
> >
> > diff --git a/qom/cpu.c b/qom/cpu.c
> > index d715890..307d638 100644
> > --- a/qom/cpu.c
> > +++ b/qom/cpu.c
> > @@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
> > if (err != NULL) {
> > error_report_err(err);
> > object_unref(OBJECT(cpu));
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> > return cpu;
> > }
> > @@ -78,8 +78,9 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> >
> > oc = cpu_class_by_name(typename, model_pieces[0]);
> > if (oc == NULL) {
> > + error_report("unable to find CPU model '%s'", model_pieces[0]);
> > g_strfreev(model_pieces);
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> >
> > cpu_type = object_class_get_name(oc);
> > @@ -88,7 +89,7 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> > g_strfreev(model_pieces);
> > if (err != NULL) {
> > error_report_err(err);
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> > return cpu_type;
> > }
> > @@ -100,10 +101,8 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> > */
> > const char *cpu_type = cpu_parse_features(typename, cpu_model);
> >
> > - if (cpu_type) {
> > - return cpu_create(cpu_type);
> > - }
> > - return NULL;
> > + assert(cpu_type);
>
> This assert seems now superfluous.
yep, it shouldn't be able to fire up, I'll drop it on respin.
>
> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
>
> > + return cpu_create(cpu_type);
> > }
> >
> > bool cpu_paging_enabled(const CPUState *cpu)
> >
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error
2017-09-05 5:41 ` Thomas Huth
2017-09-05 11:22 ` Eduardo Habkost
@ 2017-09-11 14:51 ` Igor Mammedov
1 sibling, 0 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-11 14:51 UTC (permalink / raw)
To: Thomas Huth
Cc: qemu-devel, Peter Maydell, Anthony Green, Mark Cave-Ayland,
Max Filippov, Edgar E. Iglesias, Guan Xuetao, Jia Liu,
Magnus Damm, Alexander Graf, Hervé Poussineau,
Richard Henderson, Artyom Tarasenko, Andrew Jones,
Eduardo Habkost, Riku Voipio, Fabien Chouteau, Jan Kiszka,
Yongbok Kim, Stafford Horne, David Gibson, Bastian Koppelmann,
Laurent Vivier, Michael Walle, Aurelien Jarno
On Tue, 5 Sep 2017 07:41:51 +0200
Thomas Huth <huth@tuxfamily.org> wrote:
> On 04.09.2017 16:00, Igor Mammedov wrote:
> > Almost every user of cpu_generic_init() checks for
> > returned NULL and then reports failure in a custom way
> > and aborts process.
> > Some users assume that call can't fail and don't check
> > for failure, though they should have checked for it.
> >
> > In either cases cpu_generic_init() failure is fatal,
> > so instead of checking for failure and reporting
> > it various ways, make cpu_generic_init() report
> > errors in consistent way and terminate QEMU on failure.
> >
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > ---
> > Even though it's tree wide change, it's trivial so all
> > affected call sites are included within one patch.
> [...]
> > diff --git a/qom/cpu.c b/qom/cpu.c
> > index d715890..307d638 100644
> > --- a/qom/cpu.c
> > +++ b/qom/cpu.c
> > @@ -61,7 +61,7 @@ CPUState *cpu_create(const char *typename)
> > if (err != NULL) {
> > error_report_err(err);
> > object_unref(OBJECT(cpu));
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> > return cpu;
> > }
> > @@ -78,8 +78,9 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> >
> > oc = cpu_class_by_name(typename, model_pieces[0]);
> > if (oc == NULL) {
> > + error_report("unable to find CPU model '%s'", model_pieces[0]);
> > g_strfreev(model_pieces);
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> >
> > cpu_type = object_class_get_name(oc);
> > @@ -88,7 +89,7 @@ const char *cpu_parse_features(const char *typename, const char *cpu_model)
> > g_strfreev(model_pieces);
> > if (err != NULL) {
> > error_report_err(err);
> > - return NULL;
> > + exit(EXIT_FAILURE);
> > }
> > return cpu_type;
> > }
> > @@ -100,10 +101,8 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
> > */
> > const char *cpu_type = cpu_parse_features(typename, cpu_model);
> >
> > - if (cpu_type) {
> > - return cpu_create(cpu_type);
> > - }
> > - return NULL;
> > + assert(cpu_type);
> > + return cpu_create(cpu_type);
> > }
>
> Not sure, but wouldn't it be better to do the error reporting and exit
> in cpu_generic_init() instead? In case we ever might want to re-use the
> create and parse_feature functions for device_add later (?), and then
> the functions must not exit directly anymore...
1st:
cpu_generic_init() should be removed once I convert all users to use
MachineState::cpu_type + cpu_create() instead of cpu_generic_init(cpu_model).
So no board would have to deal with cpu_model directly.
2nd:
device_add already does
obj = object_new() + ... + obj.realize = true
hence cpu_create() is of no use there.
However cpu_create() is still useful as all users that
just need to create and realize cpu without extra configuration,
could benefit from unified error checking/message and 'small' code
deduplication as diffstat for this patch shows.
38 files changed, 8 insertions(+), 169 deletions(-)
3rd:
parse_feature callbacks are meant to be called only once
and do nothing if called multiple times. They convert
'-cpu foo,features' option into a set of global properties which
are applied every created cpu instance of given type.
So when 'device_add cpu_foo' is called, there is no need to call
parse_features().
>
> Thomas
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model()
2017-09-05 5:38 ` Thomas Huth
@ 2017-09-11 15:07 ` Igor Mammedov
0 siblings, 0 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-11 15:07 UTC (permalink / raw)
To: Thomas Huth
Cc: Philippe Mathieu-Daudé,
Andrew Jones, Richard Henderson, qemu-devel, Eduardo Habkost
On Tue, 5 Sep 2017 07:38:13 +0200
Thomas Huth <thuth@redhat.com> wrote:
> On 04.09.2017 21:06, Igor Mammedov wrote:
> > On Mon, 4 Sep 2017 12:03:09 -0300
> > Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> >
> >> Hi Igor,
> >>
> >> On 09/04/2017 11:00 AM, Igor Mammedov wrote:
> >>> function not just parses features but also converts CPU model
> >>> name to CPU type, rename it to reflect what it actualy does.
> >>
> >> Why not squash this with your 1st patch "split cpu_generic_init()"?
> > there I went with current/exiting way to call that part of code,
> > and here I'm renaming it to show what it does exactly.
> >
> > But I don't have any preference here, so I can squash this patch
> > into 1/6 on respin, if you prefer.
>
> +1 for squashing
ok, will do on respin
>
> Thomas
>
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-09 20:30 ` Eduardo Habkost
2017-09-09 22:41 ` Peter Maydell
@ 2017-09-12 10:22 ` Igor Mammedov
2017-09-12 12:01 ` Eduardo Habkost
1 sibling, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-12 10:22 UTC (permalink / raw)
To: Eduardo Habkost
Cc: Alistair Francis, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Sat, 9 Sep 2017 17:30:14 -0300
Eduardo Habkost <ehabkost@redhat.com> wrote:
> On Tue, Sep 05, 2017 at 03:46:07PM -0700, Alistair Francis wrote:
> > On Tue, Sep 5, 2017 at 3:12 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > > On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
> > >> On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > > [...]
> > >> >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> > >> >> index f61e735..1cd6374 100644
> > >> >> --- a/hw/arm/stm32f205_soc.c
> > >> >> +++ b/hw/arm/stm32f205_soc.c
> > >> >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > >> >>
> > >> >> armv7m = DEVICE(&s->armv7m);
> > >> >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> > >> >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> > >> >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> > >> >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> > >> >> "memory", &error_abort);
> > >> >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> > >> >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > >> >> }
> > >> >>
> > >> >> static Property stm32f205_soc_properties[] = {
> > >> >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> > >> >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
> > >> >
> > >> > Same as armv7m: are we 100% sure users are not setting this
> > >> > manually?
> > >>
> > >> In an embedded board like this it really doesn't make sense to let the
> > >> user overwrite the CPU. The SoC will take it as an option, but the
> > >> board (which creates the SoC) just blindly always uses the same CPU.
> > >> That feature is more for QOMificatoion then any real reason though.
> > >>
> > >
> > > I'm not talking about -cpu (no user-visible change in the
> > > handling of -cpu should result from this patch), but about
> > > possible cases where the user set the "cpu-model" property using
> > > another mechanism, like -global. Probably it's impossible for an
> > > user to override the property successfully, but I would like to
> > > be sure.
> >
> > Ah, that is trickier.
> >
> > I guess that is possible to do, but the object setting logic should
> > handle the error gracefully and inform the user of the error.
>
> After looking at the code more closely, I think we can be 100%
> sure the user doesn't rely on the property, because:
>
> * TYPE_ARMV7M and TYPE_STM32F205_SOC are both sysbus devices
> with user_creatable=false, so the user can't instantiate them
> directly;
> * The only places where those objects are realized inside the
> code are:
> * mps2_common_init()
> * netduino2_init()
> * stm32f205_soc_realize()
> * armv7m_init()
> Those functions always set the "cpu-model" property immediately
> before realize.
>
> This means any value set by the user (e.g. using -global) would
> be always overwritten before realize.
>
> However, I have a suggestion for Igor: making a separate patch
> that renames the existing property to "x-cpu-model", and using
> "x-cpu-type" in this series. This way we will explicitly
> document the fact that the property is not a stable
> user/management interface.
There is no much point in renaming to "x-cpu-model" as it will be deleted
right afterwards, I'd just delete "cpu-model" and use "x-cpu-type"
in this patch. I'm not a fun of 'x-' prefix and would prefer a flag
in property to mark it as internal. But it's out of scope of this series,
so I don't care much about naming at the moment and will use "x-cpu-type"
as you suggest.
>
> >
> > >
> > >
> > >> In saying that I think a warning if the user tries to set the CPU
> > >> would make sense. I know that this issues comes up in other ARM boards
> > >> (Zynq-7000 has the same issue as well) so maybe a machine property
> > >> saying that the board doesn't accept custom CPUs would be a good idea.
> > >
> > > Yeah, there are multiple cases in this patch where boards are
> > > validating the CPU model, but not all boards do that. A generic
> > > MachineClass::valid_cpu_types[] field would be useful.
> > >
> > >>
> > >> Overall I think this patch is moving in the right direction though and
> > >> this CPU option being ignored existed before this series.
> > >
> > > I agree this is going on the right direction. However, I don't
> > > see any board that ignore the CPU option: all of them seem to use
> > > cpu_model when creating the CPUs, already.
> >
> > The Netduino2 will ignore any CPU options and always use a Cortex-m3.
> > I was wrong about Zynq-7000 though, it does respect the -cpu option.
> >
> > Thanks,
> > Alistair
> >
> > >
> > > --
> > > Eduardo
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 22:12 ` Eduardo Habkost
2017-09-05 22:46 ` Alistair Francis
@ 2017-09-12 10:53 ` Igor Mammedov
2017-09-12 16:29 ` Alistair Francis
1 sibling, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-12 10:53 UTC (permalink / raw)
To: Eduardo Habkost
Cc: Alistair Francis, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, 5 Sep 2017 19:12:26 -0300
Eduardo Habkost <ehabkost@redhat.com> wrote:
> On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
> > On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> [...]
> > >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> > >> index f61e735..1cd6374 100644
> > >> --- a/hw/arm/stm32f205_soc.c
> > >> +++ b/hw/arm/stm32f205_soc.c
> > >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > >>
> > >> armv7m = DEVICE(&s->armv7m);
> > >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> > >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> > >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> > >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> > >> "memory", &error_abort);
> > >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> > >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > >> }
> > >>
> > >> static Property stm32f205_soc_properties[] = {
> > >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> > >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
> > >
> > > Same as armv7m: are we 100% sure users are not setting this
> > > manually?
> >
> > In an embedded board like this it really doesn't make sense to let the
> > user overwrite the CPU. The SoC will take it as an option, but the
> > board (which creates the SoC) just blindly always uses the same CPU.
> > That feature is more for QOMificatoion then any real reason though.
> >
>
> I'm not talking about -cpu (no user-visible change in the
> handling of -cpu should result from this patch), but about
> possible cases where the user set the "cpu-model" property using
> another mechanism, like -global. Probably it's impossible for an
> user to override the property successfully, but I would like to
> be sure.
>
>
> > In saying that I think a warning if the user tries to set the CPU
> > would make sense. I know that this issues comes up in other ARM boards
> > (Zynq-7000 has the same issue as well) so maybe a machine property
> > saying that the board doesn't accept custom CPUs would be a good idea.
Agreed, it would be useful, however goal of the patch to drop
cpu_generic_init() preferably without changing behavior
so I'd leave extra stuff you mention upto board maintainers
to fix up on top.
> Yeah, there are multiple cases in this patch where boards are
> validating the CPU model, but not all boards do that. A generic
> MachineClass::valid_cpu_types[] field would be useful.
so far I've met 3 use cases for valid_cpu_types
* no check - just try to use whatever user provided
* check for concrete cpu models (leaf classes)
* check for super-class based in partial cpu_model match
it is nice to have valid_cpu_types[] /I recall even trying out something similar/
but then series turns into mess where one tries to fix several things
and on top of it in all targets, hence I've decided first to get rid of
all cpu_model handling in boards and only then think about valid_cpus using cpu types.
I'd gladly give up 'valid cpus' to someone else more interested in it,
there are other users beside of ARM boards for it.
/seems Alistair is interested in it, at least in ARM part/
> > Overall I think this patch is moving in the right direction though and
> > this CPU option being ignored existed before this series.
>
> I agree this is going on the right direction. However, I don't
> see any board that ignore the CPU option: all of them seem to use
> cpu_model when creating the CPUs, already.
in ARM case there are boards that use
* '-cpu' provided model
* '-cpu' provided model with valid cpu checks
* 'hardcoded' cpu model ignoring '-cpu'/-global
I've thought commit message sufficiently described current situation and changes.
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 21:47 ` Alistair Francis
2017-09-05 22:12 ` Eduardo Habkost
@ 2017-09-12 11:02 ` Igor Mammedov
2017-09-12 12:04 ` Eduardo Habkost
1 sibling, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-12 11:02 UTC (permalink / raw)
To: Alistair Francis
Cc: Eduardo Habkost, Rob Herring, Andrew Jones, Peter Maydell,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, 5 Sep 2017 14:47:52 -0700
Alistair Francis <alistair23@gmail.com> wrote:
> On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > On Mon, Sep 04, 2017 at 04:01:02PM +0200, Igor Mammedov wrote:
> >> there are 2 use cases to deal with:
> >> 1: fixed CPU models per board/soc
> >> 2: boards with user configurable cpu_model and fallback to
> >> default cpu_model if user hasn't specified one explicitly
> >>
> >> For the 1st
> >> drop intermediate cpu_model parsing and use const cpu type
> >> directly, which replaces:
> >> typename = object_class_get_name(
> >> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> >> object_new(typename)
> >> with
> >> object_new(FOO_CPU_TYPE_NAME)
> >> or
> >> cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
> >> with
> >> cpu_create(FOO_CPU_TYPE_NAME)
> >>
> >> as result 1st use case doesn't have to invoke not necessary
> >> translation and not needed code is removed.
> >>
> >> For the 2nd
> >> 1: set default cpu type with MachineClass::default_cpu_type and
> >> 2: use generic cpu_model parsing that done before machine_init()
> >> is run and:
> >> 2.1: drop custom cpu_model parsing where pattern is:
> >> typename = object_class_get_name(
> >> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> >> [parse_features(typename, cpu_model, &err) ]
> >>
> >> 2.2: or replace cpu_generic_init() which does what
> >> 2.1 does + create_cpu(typename) with just
> >> create_cpu(machine->cpu_type)
> >> as result cpu_name -> cpu_type translation is done using
> >> generic machine code one including parsing optional features
> >> if supported/present (removes a bunch of duplicated cpu_model
> >> parsing code) and default cpu type is defined in an uniform way
> >> within machine_class_init callbacks instead of adhoc places
> >> in boadr's machine_init code.
> >>
> >> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> >> ---
> >> CC: Peter Maydell <peter.maydell@linaro.org>
> >> CC: Igor Mitsyanko <i.mitsyanko@gmail.com>
> >> CC: Rob Herring <robh@kernel.org>
> >> CC: Andrzej Zaborowski <balrogg@gmail.com>
> >> CC: Jan Kiszka <jan.kiszka@web.de>
> >> CC: Alistair Francis <alistair@alistair23.me>
> >> CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
> >> CC: qemu-arm@nongnu.org
> >> ---
[...]
> >>
> >> static const TypeInfo lm3s6965evb_type = {
> >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> >> index f61e735..1cd6374 100644
> >> --- a/hw/arm/stm32f205_soc.c
> >> +++ b/hw/arm/stm32f205_soc.c
> >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> >>
> >> armv7m = DEVICE(&s->armv7m);
> >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> >> "memory", &error_abort);
> >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> >> }
> >>
> >> static Property stm32f205_soc_properties[] = {
> >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
> >
> > Same as armv7m: are we 100% sure users are not setting this
> > manually?
>
> In an embedded board like this it really doesn't make sense to let the
> user overwrite the CPU. The SoC will take it as an option, but the
> board (which creates the SoC) just blindly always uses the same CPU.
> That feature is more for QOMificatoion then any real reason though.
If SoC has fixed cpu type then I'd drop property.
I'd leave it upto board maintainers to cleanup not really needed
properties and make soc with fixed cpu type where it makes sense.
> In saying that I think a warning if the user tries to set the CPU
> would make sense. I know that this issues comes up in other ARM boards
> (Zynq-7000 has the same issue as well) so maybe a machine property
> saying that the board doesn't accept custom CPUs would be a good idea.
>
> Overall I think this patch is moving in the right direction though and
> this CPU option being ignored existed before this series.
right, this series just removes cpu_generic_init()/cpu_model in boards
everything else should be done as separate series.
>
> Thanks,
> Alistair
>
>
> >
> >
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-12 10:22 ` Igor Mammedov
@ 2017-09-12 12:01 ` Eduardo Habkost
0 siblings, 0 replies; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-12 12:01 UTC (permalink / raw)
To: Igor Mammedov
Cc: Alistair Francis, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 12, 2017 at 12:22:14PM +0200, Igor Mammedov wrote:
> On Sat, 9 Sep 2017 17:30:14 -0300
> Eduardo Habkost <ehabkost@redhat.com> wrote:
>
> > On Tue, Sep 05, 2017 at 03:46:07PM -0700, Alistair Francis wrote:
> > > On Tue, Sep 5, 2017 at 3:12 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > > > On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
> > > >> On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > > > [...]
> > > >> >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> > > >> >> index f61e735..1cd6374 100644
> > > >> >> --- a/hw/arm/stm32f205_soc.c
> > > >> >> +++ b/hw/arm/stm32f205_soc.c
> > > >> >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > > >> >>
> > > >> >> armv7m = DEVICE(&s->armv7m);
> > > >> >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> > > >> >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> > > >> >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> > > >> >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> > > >> >> "memory", &error_abort);
> > > >> >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> > > >> >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > > >> >> }
> > > >> >>
> > > >> >> static Property stm32f205_soc_properties[] = {
> > > >> >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> > > >> >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
> > > >> >
> > > >> > Same as armv7m: are we 100% sure users are not setting this
> > > >> > manually?
> > > >>
> > > >> In an embedded board like this it really doesn't make sense to let the
> > > >> user overwrite the CPU. The SoC will take it as an option, but the
> > > >> board (which creates the SoC) just blindly always uses the same CPU.
> > > >> That feature is more for QOMificatoion then any real reason though.
> > > >>
> > > >
> > > > I'm not talking about -cpu (no user-visible change in the
> > > > handling of -cpu should result from this patch), but about
> > > > possible cases where the user set the "cpu-model" property using
> > > > another mechanism, like -global. Probably it's impossible for an
> > > > user to override the property successfully, but I would like to
> > > > be sure.
> > >
> > > Ah, that is trickier.
> > >
> > > I guess that is possible to do, but the object setting logic should
> > > handle the error gracefully and inform the user of the error.
> >
> > After looking at the code more closely, I think we can be 100%
> > sure the user doesn't rely on the property, because:
> >
> > * TYPE_ARMV7M and TYPE_STM32F205_SOC are both sysbus devices
> > with user_creatable=false, so the user can't instantiate them
> > directly;
> > * The only places where those objects are realized inside the
> > code are:
> > * mps2_common_init()
> > * netduino2_init()
> > * stm32f205_soc_realize()
> > * armv7m_init()
> > Those functions always set the "cpu-model" property immediately
> > before realize.
> >
> > This means any value set by the user (e.g. using -global) would
> > be always overwritten before realize.
> >
> > However, I have a suggestion for Igor: making a separate patch
> > that renames the existing property to "x-cpu-model", and using
> > "x-cpu-type" in this series. This way we will explicitly
> > document the fact that the property is not a stable
> > user/management interface.
> There is no much point in renaming to "x-cpu-model" as it will be deleted
> right afterwards, I'd just delete "cpu-model" and use "x-cpu-type"
> in this patch. I'm not a fun of 'x-' prefix and would prefer a flag
> in property to mark it as internal. But it's out of scope of this series,
> so I don't care much about naming at the moment and will use "x-cpu-type"
> as you suggest.
Peter pointed out that this is the case with lots of properties
on non-user-creatable devices. So we can keep "cpu-type" for
consistency by now.
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-12 11:02 ` Igor Mammedov
@ 2017-09-12 12:04 ` Eduardo Habkost
0 siblings, 0 replies; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-12 12:04 UTC (permalink / raw)
To: Igor Mammedov
Cc: Alistair Francis, Rob Herring, Andrew Jones, Peter Maydell,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 12, 2017 at 01:02:35PM +0200, Igor Mammedov wrote:
> On Tue, 5 Sep 2017 14:47:52 -0700
> Alistair Francis <alistair23@gmail.com> wrote:
>
> > On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> > > On Mon, Sep 04, 2017 at 04:01:02PM +0200, Igor Mammedov wrote:
> > >> there are 2 use cases to deal with:
> > >> 1: fixed CPU models per board/soc
> > >> 2: boards with user configurable cpu_model and fallback to
> > >> default cpu_model if user hasn't specified one explicitly
> > >>
> > >> For the 1st
> > >> drop intermediate cpu_model parsing and use const cpu type
> > >> directly, which replaces:
> > >> typename = object_class_get_name(
> > >> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > >> object_new(typename)
> > >> with
> > >> object_new(FOO_CPU_TYPE_NAME)
> > >> or
> > >> cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
> > >> with
> > >> cpu_create(FOO_CPU_TYPE_NAME)
> > >>
> > >> as result 1st use case doesn't have to invoke not necessary
> > >> translation and not needed code is removed.
> > >>
> > >> For the 2nd
> > >> 1: set default cpu type with MachineClass::default_cpu_type and
> > >> 2: use generic cpu_model parsing that done before machine_init()
> > >> is run and:
> > >> 2.1: drop custom cpu_model parsing where pattern is:
> > >> typename = object_class_get_name(
> > >> cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > >> [parse_features(typename, cpu_model, &err) ]
> > >>
> > >> 2.2: or replace cpu_generic_init() which does what
> > >> 2.1 does + create_cpu(typename) with just
> > >> create_cpu(machine->cpu_type)
> > >> as result cpu_name -> cpu_type translation is done using
> > >> generic machine code one including parsing optional features
> > >> if supported/present (removes a bunch of duplicated cpu_model
> > >> parsing code) and default cpu type is defined in an uniform way
> > >> within machine_class_init callbacks instead of adhoc places
> > >> in boadr's machine_init code.
> > >>
> > >> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > >> ---
> > >> CC: Peter Maydell <peter.maydell@linaro.org>
> > >> CC: Igor Mitsyanko <i.mitsyanko@gmail.com>
> > >> CC: Rob Herring <robh@kernel.org>
> > >> CC: Andrzej Zaborowski <balrogg@gmail.com>
> > >> CC: Jan Kiszka <jan.kiszka@web.de>
> > >> CC: Alistair Francis <alistair@alistair23.me>
> > >> CC: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
> > >> CC: qemu-arm@nongnu.org
> > >> ---
>
> [...]
>
> > >>
> > >> static const TypeInfo lm3s6965evb_type = {
> > >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
> > >> index f61e735..1cd6374 100644
> > >> --- a/hw/arm/stm32f205_soc.c
> > >> +++ b/hw/arm/stm32f205_soc.c
> > >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > >>
> > >> armv7m = DEVICE(&s->armv7m);
> > >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
> > >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
> > >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
> > >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
> > >> "memory", &error_abort);
> > >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
> > >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
> > >> }
> > >>
> > >> static Property stm32f205_soc_properties[] = {
> > >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
> > >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
> > >
> > > Same as armv7m: are we 100% sure users are not setting this
> > > manually?
> >
> > In an embedded board like this it really doesn't make sense to let the
> > user overwrite the CPU. The SoC will take it as an option, but the
> > board (which creates the SoC) just blindly always uses the same CPU.
> > That feature is more for QOMificatoion then any real reason though.
> If SoC has fixed cpu type then I'd drop property.
> I'd leave it upto board maintainers to cleanup not really needed
> properties and make soc with fixed cpu type where it makes sense.
>
> > In saying that I think a warning if the user tries to set the CPU
> > would make sense. I know that this issues comes up in other ARM boards
> > (Zynq-7000 has the same issue as well) so maybe a machine property
> > saying that the board doesn't accept custom CPUs would be a good idea.
> >
> > Overall I think this patch is moving in the right direction though and
> > this CPU option being ignored existed before this series.
> right, this series just removes cpu_generic_init()/cpu_model in boards
> everything else should be done as separate series.
Agreed. Except for actual bugs and opportunities to document
these cases in comments or commit messages, these things can be
done by other series.
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-05 21:31 ` Eduardo Habkost
2017-09-05 21:47 ` Alistair Francis
@ 2017-09-12 12:11 ` Igor Mammedov
2017-09-12 12:53 ` Eduardo Habkost
1 sibling, 1 reply; 37+ messages in thread
From: Igor Mammedov @ 2017-09-12 12:11 UTC (permalink / raw)
To: Eduardo Habkost
Cc: qemu-devel, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, 5 Sep 2017 18:31:52 -0300
Eduardo Habkost <ehabkost@redhat.com> wrote:
> On Mon, Sep 04, 2017 at 04:01:02PM +0200, Igor Mammedov wrote:
> > there are 2 use cases to deal with:
> > 1: fixed CPU models per board/soc
> > 2: boards with user configurable cpu_model and fallback to
> > default cpu_model if user hasn't specified one explicitly
> >
> > For the 1st
> > drop intermediate cpu_model parsing and use const cpu type
> > directly, which replaces:
> > typename = object_class_get_name(
> > cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > object_new(typename)
> > with
> > object_new(FOO_CPU_TYPE_NAME)
> > or
> > cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
> > with
> > cpu_create(FOO_CPU_TYPE_NAME)
> >
> > as result 1st use case doesn't have to invoke not necessary
> > translation and not needed code is removed.
> >
> > For the 2nd
> > 1: set default cpu type with MachineClass::default_cpu_type and
> > 2: use generic cpu_model parsing that done before machine_init()
> > is run and:
> > 2.1: drop custom cpu_model parsing where pattern is:
> > typename = object_class_get_name(
> > cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > [parse_features(typename, cpu_model, &err) ]
> >
> > 2.2: or replace cpu_generic_init() which does what
> > 2.1 does + create_cpu(typename) with just
> > create_cpu(machine->cpu_type)
> > as result cpu_name -> cpu_type translation is done using
> > generic machine code one including parsing optional features
> > if supported/present (removes a bunch of duplicated cpu_model
> > parsing code) and default cpu type is defined in an uniform way
> > within machine_class_init callbacks instead of adhoc places
> > in boadr's machine_init code.
> >
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > ---
[...]
> > @@ -285,20 +259,16 @@ static void armv7m_reset(void *opaque)
> > Returns the ARMv7M device. */
> >
> > DeviceState *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
> > - const char *kernel_filename, const char *cpu_model)
> > + const char *kernel_filename, const char *cpu_type)
> > {
> > DeviceState *armv7m;
> >
> > - if (cpu_model == NULL) {
> > - cpu_model = "cortex-m3";
> > - }
> > -
>
> I was going to suggest doing the default_cpu_type stuff in a
> separate patch, but it might require touching those lines twice.
> So I guess this is OK.
I've have tried it, but yes it's more changes and there is also
chicken/egg problem, cleanest way I've stopped at is to get rid of
cpu_model fallback + cpu_generic_init() in one go.
> > armv7m = qdev_create(NULL, "armv7m");
> > qdev_prop_set_uint32(armv7m, "num-irq", num_irq);
> > - qdev_prop_set_string(armv7m, "cpu-model", cpu_model);
> > + qdev_prop_set_string(armv7m, "cpu-type", cpu_type);
> > object_property_set_link(OBJECT(armv7m), OBJECT(get_system_memory()),
> > "memory", &error_abort);
> > - /* This will exit with an error if the user passed us a bad cpu_model */
> > + /* This will exit with an error if the user passed us a bad cpu_type */
> > qdev_init_nofail(armv7m);
> >
> > armv7m_load_kernel(ARM_CPU(first_cpu), kernel_filename, mem_size);
[...]
> > diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
> > index 20e60f1..0d7190a 100644
> > --- a/hw/arm/highbank.c
> > +++ b/hw/arm/highbank.c
> > @@ -219,7 +219,6 @@ enum cxmachines {
> > static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
> > {
> > ram_addr_t ram_size = machine->ram_size;
> > - const char *cpu_model = machine->cpu_model;
> > const char *kernel_filename = machine->kernel_filename;
> > const char *kernel_cmdline = machine->kernel_cmdline;
> > const char *initrd_filename = machine->initrd_filename;
> > @@ -236,19 +235,20 @@ static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
> >
> > switch (machine_id) {
> > case CALXEDA_HIGHBANK:
> > - cpu_model = "cortex-a9";
> > + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
> > break;
> > case CALXEDA_MIDWAY:
> > - cpu_model = "cortex-a15";
> > + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
> > break;
> > + default:
> > + assert(0);
> > }
>
> Why not delete this switch statement completely and set
> default_cpu_type at midway_class_init() and
> highbank_class_init()?
it would allow '-cpu foo' to take effect which isn't what current code does,
as series doesn't add valid_cpus[] check at the same time.
So here we do pretty much strait-forward conversion from cpu_model
to cpu_type and nothing else.
>
>
> >
> > for (n = 0; n < smp_cpus; n++) {
> > - ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
> > Object *cpuobj;
> > ARMCPU *cpu;
> >
> > - cpuobj = object_new(object_class_get_name(oc));
> > + cpuobj = object_new(machine->cpu_type);
> > cpu = ARM_CPU(cpuobj);
> >
> > object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
[...]
> > diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
> > index c16657d..79b317a 100644
> > --- a/hw/arm/pxa2xx.c
> > +++ b/hw/arm/pxa2xx.c
> > @@ -2052,21 +2052,19 @@ static void pxa2xx_reset(void *opaque, int line, int level)
> >
> > /* Initialise a PXA270 integrated chip (ARM based core). */
> > PXA2xxState *pxa270_init(MemoryRegion *address_space,
> > - unsigned int sdram_size, const char *revision)
> > + unsigned int sdram_size, const char *cpu_type)
> > {
> > PXA2xxState *s;
> > int i;
> > DriveInfo *dinfo;
> > s = g_new0(PXA2xxState, 1);
> >
> > - if (revision && strncmp(revision, "pxa27", 5)) {
> > + if (strncmp(cpu_type, ARM_CPU_TYPE_NAME("pxa27"), 5)) {
>
> Why are you using ARM_CPU_TYPE_NAME here, if you are only
> checking if cpu_type starts with "pxa27"?
mainly to show that we are dealing with types here,
I can leave plain "pxa27" if you prefer.
> I suggest adding a TODO here noting that we implement this using
> either a TYPE_ARM_PXA27 subclass (so we can use
> object_class_dynamic_cast()), or a ARMCPUClass field to identify
> if the CPU is pxa27.
dynamic cast would be nice, but ("pxa27", 5) cover a range of cpu types
starting with this prefix, to use cast class structure should be reorganized
to make all pxa27 based cpus have a common pxa27 ancestor.
Or just use more verbose complete list of valid_cpus[]
It's out of scope of this patch including TODO comment,
all boards should be audited anyways to make proper use of valid_cpus[]
and adding not related TODO comments here doesn't seem right.
> > fprintf(stderr, "Machine requires a PXA27x processor.\n");
> > exit(1);
> > }
>
> This would be another use case for a generic CPU model validation
> mechanism in MachineClass.
yep, just applied to a range of cpus instead of typical leaf class.
[...]
> > diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
> > index c1145dd..3d1a231 100644
> > --- a/hw/arm/strongarm.c
> > +++ b/hw/arm/strongarm.c
> > @@ -1581,23 +1581,19 @@ static const TypeInfo strongarm_ssp_info = {
> >
> > /* Main CPU functions */
> > StrongARMState *sa1110_init(MemoryRegion *sysmem,
> > - unsigned int sdram_size, const char *rev)
> > + unsigned int sdram_size, const char *cpu_type)
> > {
> > StrongARMState *s;
> > int i;
> >
> > s = g_new0(StrongARMState, 1);
> >
> > - if (!rev) {
> > - rev = "sa1110-b5";
> > - }
> > -
> > - if (strncmp(rev, "sa1110", 6)) {
> > + if (strncmp(cpu_type, "sa1110", 6)) {
> > error_report("Machine requires a SA1110 processor.");
> > exit(1);
>
> Same suggestion as on pxa270_init(): adding a TODO here noting
> that we implement this using either object_class_dynamic_cast(),
> or a ARMCPUClass field to identify if the CPU is sa1110.
same as pxa27, it's a case of range of cpus,
TODO is orthogonal to patch topic, so I'd prefer not to add it here.
>
>
> > }
> >
> > - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
> > + s->cpu = ARM_CPU(cpu_create(cpu_type));
> >
> > memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
> > sdram_size);
> > diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
> > index 8b757ff..75631f6 100644
> > --- a/hw/arm/tosa.c
> > +++ b/hw/arm/tosa.c
> > @@ -219,7 +219,6 @@ static struct arm_boot_info tosa_binfo = {
> >
> > static void tosa_init(MachineState *machine)
> > {
> > - const char *cpu_model = machine->cpu_model;
> > const char *kernel_filename = machine->kernel_filename;
> > const char *kernel_cmdline = machine->kernel_cmdline;
> > const char *initrd_filename = machine->initrd_filename;
> > @@ -229,9 +228,6 @@ static void tosa_init(MachineState *machine)
> > TC6393xbState *tmio;
> > DeviceState *scp0, *scp1;
> >
> > - if (!cpu_model)
> > - cpu_model = "pxa255";
> > -
>
> Don't we need to set mc->default_cpu_type at
> tosapda_machine_init() to replace this?
board doesn't actually take user input and above remove code does nothing,
look into pxa255_init() where it uses hardcoded cpu model
cpu_generic_init(TYPE_ARM_CPU, "pxa255")
another user connex_init() of pxa255_init() were already cleaned up
or didn't have junk to begin with
> > mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
> >
> > memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
[...]
> > diff --git a/target/arm/cpu.c b/target/arm/cpu.c
> > index 05c038b..feeeeb2 100644
> > --- a/target/arm/cpu.c
> > +++ b/target/arm/cpu.c
> > @@ -867,7 +867,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
> > }
> >
> > cpuname = g_strsplit(cpu_model, ",", 1);
> > - typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpuname[0]);
> > + typename = g_strdup_printf("%s" ARM_CPU_TYPE_SUFFIX, cpuname[0]);
>
> What about doing the same we do in x86 and s390:
>
> g_strdup_printf(ARM_CPU_TYPE_NAME("%s"), cpuname[0]);
sure
>
> > oc = object_class_by_name(typename);
> > g_strfreev(cpuname);
> > g_free(typename);
> > --
> > 2.7.4
> >
> >
>
>
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-12 12:11 ` Igor Mammedov
@ 2017-09-12 12:53 ` Eduardo Habkost
2017-09-12 14:06 ` Igor Mammedov
0 siblings, 1 reply; 37+ messages in thread
From: Eduardo Habkost @ 2017-09-12 12:53 UTC (permalink / raw)
To: Igor Mammedov
Cc: qemu-devel, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 12, 2017 at 02:11:59PM +0200, Igor Mammedov wrote:
> On Tue, 5 Sep 2017 18:31:52 -0300
> Eduardo Habkost <ehabkost@redhat.com> wrote:
>
> > On Mon, Sep 04, 2017 at 04:01:02PM +0200, Igor Mammedov wrote:
> > > there are 2 use cases to deal with:
> > > 1: fixed CPU models per board/soc
> > > 2: boards with user configurable cpu_model and fallback to
> > > default cpu_model if user hasn't specified one explicitly
> > >
> > > For the 1st
> > > drop intermediate cpu_model parsing and use const cpu type
> > > directly, which replaces:
> > > typename = object_class_get_name(
> > > cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > > object_new(typename)
> > > with
> > > object_new(FOO_CPU_TYPE_NAME)
> > > or
> > > cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
> > > with
> > > cpu_create(FOO_CPU_TYPE_NAME)
> > >
> > > as result 1st use case doesn't have to invoke not necessary
> > > translation and not needed code is removed.
> > >
> > > For the 2nd
> > > 1: set default cpu type with MachineClass::default_cpu_type and
> > > 2: use generic cpu_model parsing that done before machine_init()
> > > is run and:
> > > 2.1: drop custom cpu_model parsing where pattern is:
> > > typename = object_class_get_name(
> > > cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > > [parse_features(typename, cpu_model, &err) ]
> > >
> > > 2.2: or replace cpu_generic_init() which does what
> > > 2.1 does + create_cpu(typename) with just
> > > create_cpu(machine->cpu_type)
> > > as result cpu_name -> cpu_type translation is done using
> > > generic machine code one including parsing optional features
> > > if supported/present (removes a bunch of duplicated cpu_model
> > > parsing code) and default cpu type is defined in an uniform way
> > > within machine_class_init callbacks instead of adhoc places
> > > in boadr's machine_init code.
> > >
> > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > > ---
> [...]
>
> > > @@ -285,20 +259,16 @@ static void armv7m_reset(void *opaque)
> > > Returns the ARMv7M device. */
> > >
> > > DeviceState *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
> > > - const char *kernel_filename, const char *cpu_model)
> > > + const char *kernel_filename, const char *cpu_type)
> > > {
> > > DeviceState *armv7m;
> > >
> > > - if (cpu_model == NULL) {
> > > - cpu_model = "cortex-m3";
> > > - }
> > > -
> >
> > I was going to suggest doing the default_cpu_type stuff in a
> > separate patch, but it might require touching those lines twice.
> > So I guess this is OK.
> I've have tried it, but yes it's more changes and there is also
> chicken/egg problem, cleanest way I've stopped at is to get rid of
> cpu_model fallback + cpu_generic_init() in one go.
OK
>
>
> > > armv7m = qdev_create(NULL, "armv7m");
> > > qdev_prop_set_uint32(armv7m, "num-irq", num_irq);
> > > - qdev_prop_set_string(armv7m, "cpu-model", cpu_model);
> > > + qdev_prop_set_string(armv7m, "cpu-type", cpu_type);
> > > object_property_set_link(OBJECT(armv7m), OBJECT(get_system_memory()),
> > > "memory", &error_abort);
> > > - /* This will exit with an error if the user passed us a bad cpu_model */
> > > + /* This will exit with an error if the user passed us a bad cpu_type */
> > > qdev_init_nofail(armv7m);
> > >
> > > armv7m_load_kernel(ARM_CPU(first_cpu), kernel_filename, mem_size);
> [...]
>
> > > diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
> > > index 20e60f1..0d7190a 100644
> > > --- a/hw/arm/highbank.c
> > > +++ b/hw/arm/highbank.c
> > > @@ -219,7 +219,6 @@ enum cxmachines {
> > > static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
> > > {
> > > ram_addr_t ram_size = machine->ram_size;
> > > - const char *cpu_model = machine->cpu_model;
> > > const char *kernel_filename = machine->kernel_filename;
> > > const char *kernel_cmdline = machine->kernel_cmdline;
> > > const char *initrd_filename = machine->initrd_filename;
> > > @@ -236,19 +235,20 @@ static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
> > >
> > > switch (machine_id) {
> > > case CALXEDA_HIGHBANK:
> > > - cpu_model = "cortex-a9";
> > > + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
> > > break;
> > > case CALXEDA_MIDWAY:
> > > - cpu_model = "cortex-a15";
> > > + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
> > > break;
> > > + default:
> > > + assert(0);
> > > }
> >
> > Why not delete this switch statement completely and set
> > default_cpu_type at midway_class_init() and
> > highbank_class_init()?
> it would allow '-cpu foo' to take effect which isn't what current code does,
> as series doesn't add valid_cpus[] check at the same time.
Oh, I see.
>
> So here we do pretty much strait-forward conversion from cpu_model
> to cpu_type and nothing else.
OK.
>
> >
> >
> > >
> > > for (n = 0; n < smp_cpus; n++) {
> > > - ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
> > > Object *cpuobj;
> > > ARMCPU *cpu;
> > >
> > > - cpuobj = object_new(object_class_get_name(oc));
> > > + cpuobj = object_new(machine->cpu_type);
> > > cpu = ARM_CPU(cpuobj);
> > >
> > > object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
> [...]
>
> > > diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
> > > index c16657d..79b317a 100644
> > > --- a/hw/arm/pxa2xx.c
> > > +++ b/hw/arm/pxa2xx.c
> > > @@ -2052,21 +2052,19 @@ static void pxa2xx_reset(void *opaque, int line, int level)
> > >
> > > /* Initialise a PXA270 integrated chip (ARM based core). */
> > > PXA2xxState *pxa270_init(MemoryRegion *address_space,
> > > - unsigned int sdram_size, const char *revision)
> > > + unsigned int sdram_size, const char *cpu_type)
> > > {
> > > PXA2xxState *s;
> > > int i;
> > > DriveInfo *dinfo;
> > > s = g_new0(PXA2xxState, 1);
> > >
> > > - if (revision && strncmp(revision, "pxa27", 5)) {
> > > + if (strncmp(cpu_type, ARM_CPU_TYPE_NAME("pxa27"), 5)) {
> >
> > Why are you using ARM_CPU_TYPE_NAME here, if you are only
> > checking if cpu_type starts with "pxa27"?
> mainly to show that we are dealing with types here,
> I can leave plain "pxa27" if you prefer.
Considering that we're dealing with a strncmp() hack that needs
ARM_CPU_TYPE_NAME to work in a very specific way, I would prefer
to leave the actual argument to strncmp() explicitly visible,
until we implement another solution.
>
>
> > I suggest adding a TODO here noting that we implement this using
> > either a TYPE_ARM_PXA27 subclass (so we can use
> > object_class_dynamic_cast()), or a ARMCPUClass field to identify
> > if the CPU is pxa27.
> dynamic cast would be nice, but ("pxa27", 5) cover a range of cpu types
> starting with this prefix, to use cast class structure should be reorganized
> to make all pxa27 based cpus have a common pxa27 ancestor.
> Or just use more verbose complete list of valid_cpus[]
>
> It's out of scope of this patch including TODO comment,
> all boards should be audited anyways to make proper use of valid_cpus[]
> and adding not related TODO comments here doesn't seem right.
True, now we have the plan of adding valid_cpus[], and this would
affect lots of other boards. I won't mind if you prefer to not
add the TODO comment on this series.
>
>
> > > fprintf(stderr, "Machine requires a PXA27x processor.\n");
> > > exit(1);
> > > }
> >
> > This would be another use case for a generic CPU model validation
> > mechanism in MachineClass.
> yep, just applied to a range of cpus instead of typical leaf class.
>
> [...]
>
> > > diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
> > > index c1145dd..3d1a231 100644
> > > --- a/hw/arm/strongarm.c
> > > +++ b/hw/arm/strongarm.c
> > > @@ -1581,23 +1581,19 @@ static const TypeInfo strongarm_ssp_info = {
> > >
> > > /* Main CPU functions */
> > > StrongARMState *sa1110_init(MemoryRegion *sysmem,
> > > - unsigned int sdram_size, const char *rev)
> > > + unsigned int sdram_size, const char *cpu_type)
> > > {
> > > StrongARMState *s;
> > > int i;
> > >
> > > s = g_new0(StrongARMState, 1);
> > >
> > > - if (!rev) {
> > > - rev = "sa1110-b5";
> > > - }
> > > -
> > > - if (strncmp(rev, "sa1110", 6)) {
> > > + if (strncmp(cpu_type, "sa1110", 6)) {
> > > error_report("Machine requires a SA1110 processor.");
> > > exit(1);
> >
> > Same suggestion as on pxa270_init(): adding a TODO here noting
> > that we implement this using either object_class_dynamic_cast(),
> > or a ARMCPUClass field to identify if the CPU is sa1110.
> same as pxa27, it's a case of range of cpus,
> TODO is orthogonal to patch topic, so I'd prefer not to add it here.
OK
>
> >
> >
> > > }
> > >
> > > - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
> > > + s->cpu = ARM_CPU(cpu_create(cpu_type));
> > >
> > > memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
> > > sdram_size);
> > > diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
> > > index 8b757ff..75631f6 100644
> > > --- a/hw/arm/tosa.c
> > > +++ b/hw/arm/tosa.c
> > > @@ -219,7 +219,6 @@ static struct arm_boot_info tosa_binfo = {
> > >
> > > static void tosa_init(MachineState *machine)
> > > {
> > > - const char *cpu_model = machine->cpu_model;
> > > const char *kernel_filename = machine->kernel_filename;
> > > const char *kernel_cmdline = machine->kernel_cmdline;
> > > const char *initrd_filename = machine->initrd_filename;
> > > @@ -229,9 +228,6 @@ static void tosa_init(MachineState *machine)
> > > TC6393xbState *tmio;
> > > DeviceState *scp0, *scp1;
> > >
> > > - if (!cpu_model)
> > > - cpu_model = "pxa255";
> > > -
> >
> > Don't we need to set mc->default_cpu_type at
> > tosapda_machine_init() to replace this?
> board doesn't actually take user input and above remove code does nothing,
> look into pxa255_init() where it uses hardcoded cpu model
> cpu_generic_init(TYPE_ARM_CPU, "pxa255")
>
> another user connex_init() of pxa255_init() were already cleaned up
> or didn't have junk to begin with
You are right, I didn't notice cpu_model was an unused variable.
>
> > > mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
> > >
> > > memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
> [...]
>
> > > diff --git a/target/arm/cpu.c b/target/arm/cpu.c
> > > index 05c038b..feeeeb2 100644
> > > --- a/target/arm/cpu.c
> > > +++ b/target/arm/cpu.c
> > > @@ -867,7 +867,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
> > > }
> > >
> > > cpuname = g_strsplit(cpu_model, ",", 1);
> > > - typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpuname[0]);
> > > + typename = g_strdup_printf("%s" ARM_CPU_TYPE_SUFFIX, cpuname[0]);
> >
> > What about doing the same we do in x86 and s390:
> >
> > g_strdup_printf(ARM_CPU_TYPE_NAME("%s"), cpuname[0]);
> sure
>
I think this and the strncmp() line are the only suggestions that
I'm still keeping. But they shouldn't block the series, so:
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
--
Eduardo
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-12 12:53 ` Eduardo Habkost
@ 2017-09-12 14:06 ` Igor Mammedov
0 siblings, 0 replies; 37+ messages in thread
From: Igor Mammedov @ 2017-09-12 14:06 UTC (permalink / raw)
To: Eduardo Habkost
Cc: qemu-devel, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, 12 Sep 2017 09:53:22 -0300
Eduardo Habkost <ehabkost@redhat.com> wrote:
> On Tue, Sep 12, 2017 at 02:11:59PM +0200, Igor Mammedov wrote:
> > On Tue, 5 Sep 2017 18:31:52 -0300
> > Eduardo Habkost <ehabkost@redhat.com> wrote:
> >
> > > On Mon, Sep 04, 2017 at 04:01:02PM +0200, Igor Mammedov wrote:
> > > > there are 2 use cases to deal with:
> > > > 1: fixed CPU models per board/soc
> > > > 2: boards with user configurable cpu_model and fallback to
> > > > default cpu_model if user hasn't specified one explicitly
> > > >
> > > > For the 1st
> > > > drop intermediate cpu_model parsing and use const cpu type
> > > > directly, which replaces:
> > > > typename = object_class_get_name(
> > > > cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > > > object_new(typename)
> > > > with
> > > > object_new(FOO_CPU_TYPE_NAME)
> > > > or
> > > > cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
> > > > with
> > > > cpu_create(FOO_CPU_TYPE_NAME)
> > > >
> > > > as result 1st use case doesn't have to invoke not necessary
> > > > translation and not needed code is removed.
> > > >
> > > > For the 2nd
> > > > 1: set default cpu type with MachineClass::default_cpu_type and
> > > > 2: use generic cpu_model parsing that done before machine_init()
> > > > is run and:
> > > > 2.1: drop custom cpu_model parsing where pattern is:
> > > > typename = object_class_get_name(
> > > > cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
> > > > [parse_features(typename, cpu_model, &err) ]
> > > >
> > > > 2.2: or replace cpu_generic_init() which does what
> > > > 2.1 does + create_cpu(typename) with just
> > > > create_cpu(machine->cpu_type)
> > > > as result cpu_name -> cpu_type translation is done using
> > > > generic machine code one including parsing optional features
> > > > if supported/present (removes a bunch of duplicated cpu_model
> > > > parsing code) and default cpu type is defined in an uniform way
> > > > within machine_class_init callbacks instead of adhoc places
> > > > in boadr's machine_init code.
> > > >
> > > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > > > ---
> > [...]
> >
> > > > @@ -285,20 +259,16 @@ static void armv7m_reset(void *opaque)
> > > > Returns the ARMv7M device. */
> > > >
> > > > DeviceState *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
> > > > - const char *kernel_filename, const char *cpu_model)
> > > > + const char *kernel_filename, const char *cpu_type)
> > > > {
> > > > DeviceState *armv7m;
> > > >
> > > > - if (cpu_model == NULL) {
> > > > - cpu_model = "cortex-m3";
> > > > - }
> > > > -
> > >
> > > I was going to suggest doing the default_cpu_type stuff in a
> > > separate patch, but it might require touching those lines twice.
> > > So I guess this is OK.
> > I've have tried it, but yes it's more changes and there is also
> > chicken/egg problem, cleanest way I've stopped at is to get rid of
> > cpu_model fallback + cpu_generic_init() in one go.
>
> OK
>
> >
> >
> > > > armv7m = qdev_create(NULL, "armv7m");
> > > > qdev_prop_set_uint32(armv7m, "num-irq", num_irq);
> > > > - qdev_prop_set_string(armv7m, "cpu-model", cpu_model);
> > > > + qdev_prop_set_string(armv7m, "cpu-type", cpu_type);
> > > > object_property_set_link(OBJECT(armv7m), OBJECT(get_system_memory()),
> > > > "memory", &error_abort);
> > > > - /* This will exit with an error if the user passed us a bad cpu_model */
> > > > + /* This will exit with an error if the user passed us a bad cpu_type */
> > > > qdev_init_nofail(armv7m);
> > > >
> > > > armv7m_load_kernel(ARM_CPU(first_cpu), kernel_filename, mem_size);
> > [...]
> >
> > > > diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
> > > > index 20e60f1..0d7190a 100644
> > > > --- a/hw/arm/highbank.c
> > > > +++ b/hw/arm/highbank.c
> > > > @@ -219,7 +219,6 @@ enum cxmachines {
> > > > static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
> > > > {
> > > > ram_addr_t ram_size = machine->ram_size;
> > > > - const char *cpu_model = machine->cpu_model;
> > > > const char *kernel_filename = machine->kernel_filename;
> > > > const char *kernel_cmdline = machine->kernel_cmdline;
> > > > const char *initrd_filename = machine->initrd_filename;
> > > > @@ -236,19 +235,20 @@ static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
> > > >
> > > > switch (machine_id) {
> > > > case CALXEDA_HIGHBANK:
> > > > - cpu_model = "cortex-a9";
> > > > + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
> > > > break;
> > > > case CALXEDA_MIDWAY:
> > > > - cpu_model = "cortex-a15";
> > > > + machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
> > > > break;
> > > > + default:
> > > > + assert(0);
> > > > }
> > >
> > > Why not delete this switch statement completely and set
> > > default_cpu_type at midway_class_init() and
> > > highbank_class_init()?
> > it would allow '-cpu foo' to take effect which isn't what current code does,
> > as series doesn't add valid_cpus[] check at the same time.
>
> Oh, I see.
>
>
> >
> > So here we do pretty much strait-forward conversion from cpu_model
> > to cpu_type and nothing else.
>
> OK.
>
> >
> > >
> > >
> > > >
> > > > for (n = 0; n < smp_cpus; n++) {
> > > > - ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
> > > > Object *cpuobj;
> > > > ARMCPU *cpu;
> > > >
> > > > - cpuobj = object_new(object_class_get_name(oc));
> > > > + cpuobj = object_new(machine->cpu_type);
> > > > cpu = ARM_CPU(cpuobj);
> > > >
> > > > object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
> > [...]
> >
> > > > diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
> > > > index c16657d..79b317a 100644
> > > > --- a/hw/arm/pxa2xx.c
> > > > +++ b/hw/arm/pxa2xx.c
> > > > @@ -2052,21 +2052,19 @@ static void pxa2xx_reset(void *opaque, int line, int level)
> > > >
> > > > /* Initialise a PXA270 integrated chip (ARM based core). */
> > > > PXA2xxState *pxa270_init(MemoryRegion *address_space,
> > > > - unsigned int sdram_size, const char *revision)
> > > > + unsigned int sdram_size, const char *cpu_type)
> > > > {
> > > > PXA2xxState *s;
> > > > int i;
> > > > DriveInfo *dinfo;
> > > > s = g_new0(PXA2xxState, 1);
> > > >
> > > > - if (revision && strncmp(revision, "pxa27", 5)) {
> > > > + if (strncmp(cpu_type, ARM_CPU_TYPE_NAME("pxa27"), 5)) {
> > >
> > > Why are you using ARM_CPU_TYPE_NAME here, if you are only
> > > checking if cpu_type starts with "pxa27"?
> > mainly to show that we are dealing with types here,
> > I can leave plain "pxa27" if you prefer.
>
> Considering that we're dealing with a strncmp() hack that needs
> ARM_CPU_TYPE_NAME to work in a very specific way, I would prefer
> to leave the actual argument to strncmp() explicitly visible,
> until we implement another solution.
>
> >
> >
> > > I suggest adding a TODO here noting that we implement this using
> > > either a TYPE_ARM_PXA27 subclass (so we can use
> > > object_class_dynamic_cast()), or a ARMCPUClass field to identify
> > > if the CPU is pxa27.
> > dynamic cast would be nice, but ("pxa27", 5) cover a range of cpu types
> > starting with this prefix, to use cast class structure should be reorganized
> > to make all pxa27 based cpus have a common pxa27 ancestor.
> > Or just use more verbose complete list of valid_cpus[]
> >
> > It's out of scope of this patch including TODO comment,
> > all boards should be audited anyways to make proper use of valid_cpus[]
> > and adding not related TODO comments here doesn't seem right.
>
> True, now we have the plan of adding valid_cpus[], and this would
> affect lots of other boards. I won't mind if you prefer to not
> add the TODO comment on this series.
>
> >
> >
> > > > fprintf(stderr, "Machine requires a PXA27x processor.\n");
> > > > exit(1);
> > > > }
> > >
> > > This would be another use case for a generic CPU model validation
> > > mechanism in MachineClass.
> > yep, just applied to a range of cpus instead of typical leaf class.
> >
> > [...]
> >
> > > > diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
> > > > index c1145dd..3d1a231 100644
> > > > --- a/hw/arm/strongarm.c
> > > > +++ b/hw/arm/strongarm.c
> > > > @@ -1581,23 +1581,19 @@ static const TypeInfo strongarm_ssp_info = {
> > > >
> > > > /* Main CPU functions */
> > > > StrongARMState *sa1110_init(MemoryRegion *sysmem,
> > > > - unsigned int sdram_size, const char *rev)
> > > > + unsigned int sdram_size, const char *cpu_type)
> > > > {
> > > > StrongARMState *s;
> > > > int i;
> > > >
> > > > s = g_new0(StrongARMState, 1);
> > > >
> > > > - if (!rev) {
> > > > - rev = "sa1110-b5";
> > > > - }
> > > > -
> > > > - if (strncmp(rev, "sa1110", 6)) {
> > > > + if (strncmp(cpu_type, "sa1110", 6)) {
> > > > error_report("Machine requires a SA1110 processor.");
> > > > exit(1);
> > >
> > > Same suggestion as on pxa270_init(): adding a TODO here noting
> > > that we implement this using either object_class_dynamic_cast(),
> > > or a ARMCPUClass field to identify if the CPU is sa1110.
> > same as pxa27, it's a case of range of cpus,
> > TODO is orthogonal to patch topic, so I'd prefer not to add it here.
>
> OK
>
> >
> > >
> > >
> > > > }
> > > >
> > > > - s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
> > > > + s->cpu = ARM_CPU(cpu_create(cpu_type));
> > > >
> > > > memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
> > > > sdram_size);
> > > > diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
> > > > index 8b757ff..75631f6 100644
> > > > --- a/hw/arm/tosa.c
> > > > +++ b/hw/arm/tosa.c
> > > > @@ -219,7 +219,6 @@ static struct arm_boot_info tosa_binfo = {
> > > >
> > > > static void tosa_init(MachineState *machine)
> > > > {
> > > > - const char *cpu_model = machine->cpu_model;
> > > > const char *kernel_filename = machine->kernel_filename;
> > > > const char *kernel_cmdline = machine->kernel_cmdline;
> > > > const char *initrd_filename = machine->initrd_filename;
> > > > @@ -229,9 +228,6 @@ static void tosa_init(MachineState *machine)
> > > > TC6393xbState *tmio;
> > > > DeviceState *scp0, *scp1;
> > > >
> > > > - if (!cpu_model)
> > > > - cpu_model = "pxa255";
> > > > -
> > >
> > > Don't we need to set mc->default_cpu_type at
> > > tosapda_machine_init() to replace this?
> > board doesn't actually take user input and above remove code does nothing,
> > look into pxa255_init() where it uses hardcoded cpu model
> > cpu_generic_init(TYPE_ARM_CPU, "pxa255")
> >
> > another user connex_init() of pxa255_init() were already cleaned up
> > or didn't have junk to begin with
>
> You are right, I didn't notice cpu_model was an unused variable.
>
> >
> > > > mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
> > > >
> > > > memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
> > [...]
> >
> > > > diff --git a/target/arm/cpu.c b/target/arm/cpu.c
> > > > index 05c038b..feeeeb2 100644
> > > > --- a/target/arm/cpu.c
> > > > +++ b/target/arm/cpu.c
> > > > @@ -867,7 +867,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
> > > > }
> > > >
> > > > cpuname = g_strsplit(cpu_model, ",", 1);
> > > > - typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpuname[0]);
> > > > + typename = g_strdup_printf("%s" ARM_CPU_TYPE_SUFFIX, cpuname[0]);
> > >
> > > What about doing the same we do in x86 and s390:
> > >
> > > g_strdup_printf(ARM_CPU_TYPE_NAME("%s"), cpuname[0]);
> > sure
> >
>
> I think this and the strncmp() line are the only suggestions that
> I'm still keeping. But they shouldn't block the series, so:
>
> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Thanks!
I'll do fixups and squash 3/6 into 1/6 as suggested and respin.
^ permalink raw reply [flat|nested] 37+ messages in thread
* Re: [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly
2017-09-12 10:53 ` Igor Mammedov
@ 2017-09-12 16:29 ` Alistair Francis
0 siblings, 0 replies; 37+ messages in thread
From: Alistair Francis @ 2017-09-12 16:29 UTC (permalink / raw)
To: Igor Mammedov
Cc: Eduardo Habkost, Peter Maydell, Andrew Jones, Rob Herring,
Igor Mitsyanko, Alistair Francis,
qemu-devel@nongnu.org Developers, qemu-arm, Jan Kiszka,
Edgar E. Iglesias, Richard Henderson
On Tue, Sep 12, 2017 at 3:53 AM, Igor Mammedov <imammedo@redhat.com> wrote:
> On Tue, 5 Sep 2017 19:12:26 -0300
> Eduardo Habkost <ehabkost@redhat.com> wrote:
>
>> On Tue, Sep 05, 2017 at 02:47:52PM -0700, Alistair Francis wrote:
>> > On Tue, Sep 5, 2017 at 2:31 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
>> [...]
>> > >> diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
>> > >> index f61e735..1cd6374 100644
>> > >> --- a/hw/arm/stm32f205_soc.c
>> > >> +++ b/hw/arm/stm32f205_soc.c
>> > >> @@ -112,7 +112,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>> > >>
>> > >> armv7m = DEVICE(&s->armv7m);
>> > >> qdev_prop_set_uint32(armv7m, "num-irq", 96);
>> > >> - qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
>> > >> + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
>> > >> object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
>> > >> "memory", &error_abort);
>> > >> object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
>> > >> @@ -200,7 +200,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
>> > >> }
>> > >>
>> > >> static Property stm32f205_soc_properties[] = {
>> > >> - DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
>> > >> + DEFINE_PROP_STRING("cpu-type", STM32F205State, cpu_type),
>> > >
>> > > Same as armv7m: are we 100% sure users are not setting this
>> > > manually?
>> >
>> > In an embedded board like this it really doesn't make sense to let the
>> > user overwrite the CPU. The SoC will take it as an option, but the
>> > board (which creates the SoC) just blindly always uses the same CPU.
>> > That feature is more for QOMificatoion then any real reason though.
>> >
>>
>> I'm not talking about -cpu (no user-visible change in the
>> handling of -cpu should result from this patch), but about
>> possible cases where the user set the "cpu-model" property using
>> another mechanism, like -global. Probably it's impossible for an
>> user to override the property successfully, but I would like to
>> be sure.
>>
>>
>> > In saying that I think a warning if the user tries to set the CPU
>> > would make sense. I know that this issues comes up in other ARM boards
>> > (Zynq-7000 has the same issue as well) so maybe a machine property
>> > saying that the board doesn't accept custom CPUs would be a good idea.
> Agreed, it would be useful, however goal of the patch to drop
> cpu_generic_init() preferably without changing behavior
>
> so I'd leave extra stuff you mention upto board maintainers
> to fix up on top.
>
>
>> Yeah, there are multiple cases in this patch where boards are
>> validating the CPU model, but not all boards do that. A generic
>> MachineClass::valid_cpu_types[] field would be useful.
> so far I've met 3 use cases for valid_cpu_types
> * no check - just try to use whatever user provided
> * check for concrete cpu models (leaf classes)
> * check for super-class based in partial cpu_model match
>
> it is nice to have valid_cpu_types[] /I recall even trying out something similar/
> but then series turns into mess where one tries to fix several things
> and on top of it in all targets, hence I've decided first to get rid of
> all cpu_model handling in boards and only then think about valid_cpus using cpu types.
>
> I'd gladly give up 'valid cpus' to someone else more interested in it,
> there are other users beside of ARM boards for it.
> /seems Alistair is interested in it, at least in ARM part/
Yeah, I'm interested in getting a generic framework to make this
possible in. Still just an RFC, I need to get back to that this week
and tidy it up.
Thanks,
Alistair
>
>
>> > Overall I think this patch is moving in the right direction though and
>> > this CPU option being ignored existed before this series.
>>
>> I agree this is going on the right direction. However, I don't
>> see any board that ignore the CPU option: all of them seem to use
>> cpu_model when creating the CPUs, already.
> in ARM case there are boards that use
> * '-cpu' provided model
> * '-cpu' provided model with valid cpu checks
> * 'hardcoded' cpu model ignoring '-cpu'/-global
>
> I've thought commit message sufficiently described current situation and changes.
^ permalink raw reply [flat|nested] 37+ messages in thread
end of thread, other threads:[~2017-09-12 16:30 UTC | newest]
Thread overview: 37+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-09-04 14:00 [Qemu-devel] [PATCH 0/6] generalize parsing of cpu_model (x86/arm) Igor Mammedov
2017-09-04 14:00 ` [Qemu-devel] [PATCH 1/6] qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts Igor Mammedov
2017-09-04 15:30 ` Philippe Mathieu-Daudé
2017-09-04 14:00 ` [Qemu-devel] [PATCH 2/6] cpu: make cpu_generic_init() abort QEMU on error Igor Mammedov
2017-09-04 15:15 ` Philippe Mathieu-Daudé
2017-09-11 14:30 ` Igor Mammedov
2017-09-05 5:41 ` Thomas Huth
2017-09-05 11:22 ` Eduardo Habkost
2017-09-11 14:51 ` Igor Mammedov
2017-09-05 20:19 ` Eduardo Habkost
2017-09-11 14:23 ` Igor Mammedov
2017-09-04 14:00 ` [Qemu-devel] [PATCH 3/6] cpu: rename cpu_parse_features() to cpu_parse_cpu_model() Igor Mammedov
2017-09-04 15:03 ` Philippe Mathieu-Daudé
2017-09-04 19:06 ` Igor Mammedov
2017-09-05 5:38 ` Thomas Huth
2017-09-11 15:07 ` Igor Mammedov
2017-09-04 14:01 ` [Qemu-devel] [PATCH 4/6] vl.c: convert cpu_model to cpu type and set of global properties before machine_init() Igor Mammedov
2017-09-04 14:01 ` [Qemu-devel] [PATCH 5/6] pc: use generic cpu_model parsing Igor Mammedov
2017-09-04 15:33 ` Philippe Mathieu-Daudé
2017-09-04 14:01 ` [Qemu-devel] [PATCH 6/6] arm: drop intermadiate cpu_model -> cpu type parsing and use cpu type directly Igor Mammedov
2017-09-05 21:31 ` Eduardo Habkost
2017-09-05 21:47 ` Alistair Francis
2017-09-05 22:12 ` Eduardo Habkost
2017-09-05 22:46 ` Alistair Francis
2017-09-06 0:16 ` Alistair Francis
2017-09-09 20:30 ` Eduardo Habkost
2017-09-09 22:41 ` Peter Maydell
2017-09-09 23:22 ` Eduardo Habkost
2017-09-12 10:22 ` Igor Mammedov
2017-09-12 12:01 ` Eduardo Habkost
2017-09-12 10:53 ` Igor Mammedov
2017-09-12 16:29 ` Alistair Francis
2017-09-12 11:02 ` Igor Mammedov
2017-09-12 12:04 ` Eduardo Habkost
2017-09-12 12:11 ` Igor Mammedov
2017-09-12 12:53 ` Eduardo Habkost
2017-09-12 14:06 ` Igor Mammedov
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