* [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through
@ 2019-12-06 17:25 Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 1/6] hw/pci-host/i440fx: Correct the header description Philippe Mathieu-Daudé
` (5 more replies)
0 siblings, 6 replies; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-06 17:25 UTC (permalink / raw)
To: qemu-devel
Cc: Thomas Huth, Michael S. Tsirkin, Markus Armbruster,
Paolo Bonzini, Philippe Mathieu-Daudé
Introduce a kconfig selector to allow builds without Intel
Integrated Graphics Device GPU PCIe passthrough.
We keep the default as enabled.
v2:
- do not mix with vfio code (Alex)
- extract to different file to avoid #ifdef (Thomas)
Philippe Mathieu-Daudé (6):
hw/pci-host/i440fx: Correct the header description
hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h"
hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE()
hw/pci-host/i440fx: Use definitions instead of magic values
hw/pci-host/i440fx: Extract the IGD Passthrough Host Bridge device
hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge
include/hw/pci-host/i440fx.h | 19 +++++-
hw/pci-host/i440fx.c | 105 +-----------------------------
hw/pci-host/igd_pt.c | 120 +++++++++++++++++++++++++++++++++++
MAINTAINERS | 1 +
hw/pci-host/Kconfig | 4 ++
hw/pci-host/Makefile.objs | 1 +
6 files changed, 144 insertions(+), 106 deletions(-)
create mode 100644 hw/pci-host/igd_pt.c
--
2.21.0
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH-for-5.0 v2 1/6] hw/pci-host/i440fx: Correct the header description
2019-12-06 17:25 [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through Philippe Mathieu-Daudé
@ 2019-12-06 17:25 ` Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 2/6] hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h" Philippe Mathieu-Daudé
` (4 subsequent siblings)
5 siblings, 0 replies; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-06 17:25 UTC (permalink / raw)
To: qemu-devel
Cc: Thomas Huth, Michael S. Tsirkin, Markus Armbruster,
Paolo Bonzini, Philippe Mathieu-Daudé
Missed during the refactor in commits 14a026dd58 and 0f25d865a,
this file is now only about the i440FX chipset.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/pci-host/i440fx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index f27131102d..3fc94426ea 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -1,5 +1,5 @@
/*
- * QEMU i440FX/PIIX3 PCI Bridge Emulation
+ * QEMU i440FX PCI Bridge Emulation
*
* Copyright (c) 2006 Fabrice Bellard
*
--
2.21.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH-for-5.0 v2 2/6] hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h"
2019-12-06 17:25 [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 1/6] hw/pci-host/i440fx: Correct the header description Philippe Mathieu-Daudé
@ 2019-12-06 17:25 ` Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 3/6] hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE() Philippe Mathieu-Daudé
` (3 subsequent siblings)
5 siblings, 0 replies; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-06 17:25 UTC (permalink / raw)
To: qemu-devel
Cc: Thomas Huth, Michael S. Tsirkin, Markus Armbruster,
Paolo Bonzini, Philippe Mathieu-Daudé
Make the PCII440FXState structure public, so it can be used out of
this source file. This will allow us to extract the IGD Passthrough
Host Bridge, which is a children of the TYPE_I440FX_PCI_DEVICE.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
include/hw/pci-host/i440fx.h | 19 +++++++++++++++++--
hw/pci-host/i440fx.c | 18 ------------------
2 files changed, 17 insertions(+), 20 deletions(-)
diff --git a/include/hw/pci-host/i440fx.h b/include/hw/pci-host/i440fx.h
index f54e6466e4..cc58d82ed4 100644
--- a/include/hw/pci-host/i440fx.h
+++ b/include/hw/pci-host/i440fx.h
@@ -13,12 +13,27 @@
#include "hw/hw.h"
#include "hw/pci/pci_bus.h"
-
-typedef struct PCII440FXState PCII440FXState;
+#include "hw/pci-host/pam.h"
#define TYPE_I440FX_PCI_HOST_BRIDGE "i440FX-pcihost"
#define TYPE_I440FX_PCI_DEVICE "i440FX"
+#define I440FX_PCI_DEVICE(obj) \
+ OBJECT_CHECK(PCII440FXState, (obj), TYPE_I440FX_PCI_DEVICE)
+
+typedef struct PCII440FXState {
+ /*< private >*/
+ PCIDevice parent_obj;
+ /*< public >*/
+
+ MemoryRegion *system_memory;
+ MemoryRegion *pci_address_space;
+ MemoryRegion *ram_memory;
+ PAMMemoryRegion pam_regions[13];
+ MemoryRegion smram_region;
+ MemoryRegion smram, low_smram;
+} PCII440FXState;
+
#define TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE "igd-passthrough-i440FX"
PCIBus *i440fx_init(const char *host_type, const char *pci_type,
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index 3fc94426ea..fbdc563599 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -31,7 +31,6 @@
#include "hw/sysbus.h"
#include "qapi/error.h"
#include "migration/vmstate.h"
-#include "hw/pci-host/pam.h"
#include "qapi/visitor.h"
#include "qemu/error-report.h"
@@ -51,23 +50,6 @@ typedef struct I440FXState {
uint32_t short_root_bus;
} I440FXState;
-#define I440FX_PCI_DEVICE(obj) \
- OBJECT_CHECK(PCII440FXState, (obj), TYPE_I440FX_PCI_DEVICE)
-
-struct PCII440FXState {
- /*< private >*/
- PCIDevice parent_obj;
- /*< public >*/
-
- MemoryRegion *system_memory;
- MemoryRegion *pci_address_space;
- MemoryRegion *ram_memory;
- PAMMemoryRegion pam_regions[13];
- MemoryRegion smram_region;
- MemoryRegion smram, low_smram;
-};
-
-
#define I440FX_PAM 0x59
#define I440FX_PAM_SIZE 7
#define I440FX_SMRAM 0x72
--
2.21.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH-for-5.0 v2 3/6] hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE()
2019-12-06 17:25 [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 1/6] hw/pci-host/i440fx: Correct the header description Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 2/6] hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h" Philippe Mathieu-Daudé
@ 2019-12-06 17:25 ` Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 4/6] hw/pci-host/i440fx: Use existing definitions instead of magic values Philippe Mathieu-Daudé
` (2 subsequent siblings)
5 siblings, 0 replies; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-06 17:25 UTC (permalink / raw)
To: qemu-devel
Cc: Thomas Huth, Michael S. Tsirkin, Markus Armbruster,
Paolo Bonzini, Philippe Mathieu-Daudé
We don't enforce the -Wsign-conversion CPPFLAG, but it doesn't hurt
to avoid this warning:
warning: implicit conversion changes signedness: 'int' to 'size_t' (aka 'unsigned long') [-Wsign-conversion]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/pci-host/i440fx.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index fbdc563599..0cc80b276d 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -419,12 +419,11 @@ out:
static void igd_pt_i440fx_realize(PCIDevice *pci_dev, Error **errp)
{
uint32_t val = 0;
- int i, num;
+ size_t i;
int pos, len;
Error *local_err = NULL;
- num = ARRAY_SIZE(igd_host_bridge_infos);
- for (i = 0; i < num; i++) {
+ for (i = 0; i < ARRAY_SIZE(igd_host_bridge_infos); i++) {
pos = igd_host_bridge_infos[i].offset;
len = igd_host_bridge_infos[i].len;
host_pci_config_read(pos, len, &val, &local_err);
--
2.21.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH-for-5.0 v2 4/6] hw/pci-host/i440fx: Use existing definitions instead of magic values
2019-12-06 17:25 [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through Philippe Mathieu-Daudé
` (2 preceding siblings ...)
2019-12-06 17:25 ` [PATCH-for-5.0 v2 3/6] hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE() Philippe Mathieu-Daudé
@ 2019-12-06 17:25 ` Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 5/6] hw/pci-host/i440fx: Extract the IGD Passthrough Host Bridge device Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 6/6] hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge Philippe Mathieu-Daudé
5 siblings, 0 replies; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-06 17:25 UTC (permalink / raw)
To: qemu-devel
Cc: Thomas Huth, Michael S. Tsirkin, Markus Armbruster,
Paolo Bonzini, Philippe Mathieu-Daudé
Use definitions from "hw/pci/pci_regs.h".
This also helps when using git-grep.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/pci-host/i440fx.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index 0cc80b276d..414138595b 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -376,13 +376,13 @@ typedef struct {
/* Here we just expose minimal host bridge offset subset. */
static const IGDHostInfo igd_host_bridge_infos[] = {
- {0x08, 2}, /* revision id */
- {0x2c, 2}, /* sybsystem vendor id */
- {0x2e, 2}, /* sybsystem id */
- {0x50, 2}, /* SNB: processor graphics control register */
- {0x52, 2}, /* processor graphics control register */
- {0xa4, 4}, /* SNB: graphics base of stolen memory */
- {0xa8, 4}, /* SNB: base of GTT stolen memory */
+ {PCI_REVISION_ID, 2},
+ {PCI_SUBSYSTEM_VENDOR_ID, 2},
+ {PCI_SUBSYSTEM_ID, 2},
+ {0x50, 2}, /* SNB: processor graphics control register */
+ {0x52, 2}, /* processor graphics control register */
+ {0xa4, 4}, /* SNB: graphics base of stolen memory */
+ {0xa8, 4}, /* SNB: base of GTT stolen memory */
};
static void host_pci_config_read(int pos, int len, uint32_t *val, Error **errp)
--
2.21.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH-for-5.0 v2 5/6] hw/pci-host/i440fx: Extract the IGD Passthrough Host Bridge device
2019-12-06 17:25 [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through Philippe Mathieu-Daudé
` (3 preceding siblings ...)
2019-12-06 17:25 ` [PATCH-for-5.0 v2 4/6] hw/pci-host/i440fx: Use existing definitions instead of magic values Philippe Mathieu-Daudé
@ 2019-12-06 17:25 ` Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 6/6] hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge Philippe Mathieu-Daudé
5 siblings, 0 replies; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-06 17:25 UTC (permalink / raw)
To: qemu-devel
Cc: Thomas Huth, Michael S. Tsirkin, Markus Armbruster,
Paolo Bonzini, Philippe Mathieu-Daudé
We can use a i440FX without the IGD passthrough host bridge.
Extract it into a new file, 'hw/pci-host/igd_pt.c'.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/pci-host/i440fx.c | 84 --------------------------
hw/pci-host/igd_pt.c | 120 ++++++++++++++++++++++++++++++++++++++
MAINTAINERS | 1 +
hw/pci-host/Makefile.objs | 1 +
4 files changed, 122 insertions(+), 84 deletions(-)
create mode 100644 hw/pci-host/igd_pt.c
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index 414138595b..bae7b42327 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -368,89 +368,6 @@ static const TypeInfo i440fx_info = {
},
};
-/* IGD Passthrough Host Bridge. */
-typedef struct {
- uint8_t offset;
- uint8_t len;
-} IGDHostInfo;
-
-/* Here we just expose minimal host bridge offset subset. */
-static const IGDHostInfo igd_host_bridge_infos[] = {
- {PCI_REVISION_ID, 2},
- {PCI_SUBSYSTEM_VENDOR_ID, 2},
- {PCI_SUBSYSTEM_ID, 2},
- {0x50, 2}, /* SNB: processor graphics control register */
- {0x52, 2}, /* processor graphics control register */
- {0xa4, 4}, /* SNB: graphics base of stolen memory */
- {0xa8, 4}, /* SNB: base of GTT stolen memory */
-};
-
-static void host_pci_config_read(int pos, int len, uint32_t *val, Error **errp)
-{
- int rc, config_fd;
- /* Access real host bridge. */
- char *path = g_strdup_printf("/sys/bus/pci/devices/%04x:%02x:%02x.%d/%s",
- 0, 0, 0, 0, "config");
-
- config_fd = open(path, O_RDWR);
- if (config_fd < 0) {
- error_setg_errno(errp, errno, "Failed to open: %s", path);
- goto out;
- }
-
- if (lseek(config_fd, pos, SEEK_SET) != pos) {
- error_setg_errno(errp, errno, "Failed to seek: %s", path);
- goto out_close_fd;
- }
-
- do {
- rc = read(config_fd, (uint8_t *)val, len);
- } while (rc < 0 && (errno == EINTR || errno == EAGAIN));
- if (rc != len) {
- error_setg_errno(errp, errno, "Failed to read: %s", path);
- }
-
-out_close_fd:
- close(config_fd);
-out:
- g_free(path);
-}
-
-static void igd_pt_i440fx_realize(PCIDevice *pci_dev, Error **errp)
-{
- uint32_t val = 0;
- size_t i;
- int pos, len;
- Error *local_err = NULL;
-
- for (i = 0; i < ARRAY_SIZE(igd_host_bridge_infos); i++) {
- pos = igd_host_bridge_infos[i].offset;
- len = igd_host_bridge_infos[i].len;
- host_pci_config_read(pos, len, &val, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
- pci_default_write_config(pci_dev, pos, val, len);
- }
-}
-
-static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
- k->realize = igd_pt_i440fx_realize;
- dc->desc = "IGD Passthrough Host bridge";
-}
-
-static const TypeInfo igd_passthrough_i440fx_info = {
- .name = TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE,
- .parent = TYPE_I440FX_PCI_DEVICE,
- .instance_size = sizeof(PCII440FXState),
- .class_init = igd_passthrough_i440fx_class_init,
-};
-
static const char *i440fx_pcihost_root_bus_path(PCIHostState *host_bridge,
PCIBus *rootbus)
{
@@ -495,7 +412,6 @@ static const TypeInfo i440fx_pcihost_info = {
static void i440fx_register_types(void)
{
type_register_static(&i440fx_info);
- type_register_static(&igd_passthrough_i440fx_info);
type_register_static(&i440fx_pcihost_info);
}
diff --git a/hw/pci-host/igd_pt.c b/hw/pci-host/igd_pt.c
new file mode 100644
index 0000000000..efcc9347ff
--- /dev/null
+++ b/hw/pci-host/igd_pt.c
@@ -0,0 +1,120 @@
+/*
+ * QEMU Intel IGD Passthrough Host Bridge Emulation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_host.h"
+#include "hw/pci-host/i440fx.h"
+#include "qapi/error.h"
+
+typedef struct {
+ uint8_t offset;
+ uint8_t len;
+} IGDHostInfo;
+
+/* Here we just expose minimal host bridge offset subset. */
+static const IGDHostInfo igd_host_bridge_infos[] = {
+ {PCI_REVISION_ID, 2},
+ {PCI_SUBSYSTEM_VENDOR_ID, 2},
+ {PCI_SUBSYSTEM_ID, 2},
+ {0x50, 2}, /* SNB: processor graphics control register */
+ {0x52, 2}, /* processor graphics control register */
+ {0xa4, 4}, /* SNB: graphics base of stolen memory */
+ {0xa8, 4}, /* SNB: base of GTT stolen memory */
+};
+
+static void host_pci_config_read(int pos, int len, uint32_t *val, Error **errp)
+{
+ int rc, config_fd;
+ /* Access real host bridge. */
+ char *path = g_strdup_printf("/sys/bus/pci/devices/%04x:%02x:%02x.%d/%s",
+ 0, 0, 0, 0, "config");
+
+ config_fd = open(path, O_RDWR);
+ if (config_fd < 0) {
+ error_setg_errno(errp, errno, "Failed to open: %s", path);
+ goto out;
+ }
+
+ if (lseek(config_fd, pos, SEEK_SET) != pos) {
+ error_setg_errno(errp, errno, "Failed to seek: %s", path);
+ goto out_close_fd;
+ }
+
+ do {
+ rc = read(config_fd, (uint8_t *)val, len);
+ } while (rc < 0 && (errno == EINTR || errno == EAGAIN));
+ if (rc != len) {
+ error_setg_errno(errp, errno, "Failed to read: %s", path);
+ }
+
+ out_close_fd:
+ close(config_fd);
+ out:
+ g_free(path);
+}
+
+static void igd_pt_i440fx_realize(PCIDevice *pci_dev, Error **errp)
+{
+ uint32_t val = 0;
+ size_t i;
+ int pos, len;
+ Error *local_err = NULL;
+
+ for (i = 0; i < ARRAY_SIZE(igd_host_bridge_infos); i++) {
+ pos = igd_host_bridge_infos[i].offset;
+ len = igd_host_bridge_infos[i].len;
+ host_pci_config_read(pos, len, &val, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ pci_default_write_config(pci_dev, pos, val, len);
+ }
+}
+
+static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->realize = igd_pt_i440fx_realize;
+ dc->desc = "IGD Passthrough Host bridge";
+}
+
+static const TypeInfo igd_passthrough_i440fx_info = {
+ .name = TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE,
+ .parent = TYPE_I440FX_PCI_DEVICE,
+ .instance_size = sizeof(PCII440FXState),
+ .class_init = igd_passthrough_i440fx_class_init,
+};
+
+static void igd_pt_i440fx_register_types(void)
+{
+ type_register_static(&igd_passthrough_i440fx_info);
+}
+
+type_init(igd_pt_i440fx_register_types)
diff --git a/MAINTAINERS b/MAINTAINERS
index 5e5e3e52d6..2822e68bfe 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1242,6 +1242,7 @@ S: Supported
F: include/hw/i386/
F: hw/i386/
F: hw/pci-host/i440fx.c
+F: hw/pci-host/igd_pt.c
F: hw/pci-host/q35.c
F: hw/pci-host/pam.c
F: include/hw/pci-host/i440fx.h
diff --git a/hw/pci-host/Makefile.objs b/hw/pci-host/Makefile.objs
index efd752b766..5affd21899 100644
--- a/hw/pci-host/Makefile.objs
+++ b/hw/pci-host/Makefile.objs
@@ -14,6 +14,7 @@ common-obj-$(CONFIG_VERSATILE_PCI) += versatile.o
common-obj-$(CONFIG_PCI_SABRE) += sabre.o
common-obj-$(CONFIG_FULONG) += bonito.o
common-obj-$(CONFIG_PCI_I440FX) += i440fx.o
+common-obj-$(CONFIG_PCI_I440FX) += igd_pt.o
common-obj-$(CONFIG_PCI_EXPRESS_Q35) += q35.o
common-obj-$(CONFIG_PCI_EXPRESS_GENERIC_BRIDGE) += gpex.o
common-obj-$(CONFIG_PCI_EXPRESS_XILINX) += xilinx-pcie.o
--
2.21.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH-for-5.0 v2 6/6] hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge
2019-12-06 17:25 [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through Philippe Mathieu-Daudé
` (4 preceding siblings ...)
2019-12-06 17:25 ` [PATCH-for-5.0 v2 5/6] hw/pci-host/i440fx: Extract the IGD Passthrough Host Bridge device Philippe Mathieu-Daudé
@ 2019-12-06 17:25 ` Philippe Mathieu-Daudé
2019-12-06 21:38 ` Alex Williamson
5 siblings, 1 reply; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2019-12-06 17:25 UTC (permalink / raw)
To: qemu-devel
Cc: Thomas Huth, Michael S. Tsirkin, Markus Armbruster,
Paolo Bonzini, Philippe Mathieu-Daudé
Add the INTEL_IGD_PASSTHROUGH Kconfig option.
Since it is implied by the PCI_I440FX option, this does not change
the default selection. However users are now able to deselelect it.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/pci-host/Kconfig | 4 ++++
hw/pci-host/Makefile.objs | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/pci-host/Kconfig b/hw/pci-host/Kconfig
index b0aa8351c4..8c88a7b9dd 100644
--- a/hw/pci-host/Kconfig
+++ b/hw/pci-host/Kconfig
@@ -1,6 +1,9 @@
config PAM
bool
+config INTEL_IGD_PASSTHROUGH
+ bool
+
config PREP_PCI
bool
select PCI
@@ -32,6 +35,7 @@ config PCI_I440FX
bool
select PCI
select PAM
+ imply INTEL_IGD_PASSTHROUGH
config PCI_EXPRESS_Q35
bool
diff --git a/hw/pci-host/Makefile.objs b/hw/pci-host/Makefile.objs
index 5affd21899..9dbd0f9042 100644
--- a/hw/pci-host/Makefile.objs
+++ b/hw/pci-host/Makefile.objs
@@ -14,7 +14,7 @@ common-obj-$(CONFIG_VERSATILE_PCI) += versatile.o
common-obj-$(CONFIG_PCI_SABRE) += sabre.o
common-obj-$(CONFIG_FULONG) += bonito.o
common-obj-$(CONFIG_PCI_I440FX) += i440fx.o
-common-obj-$(CONFIG_PCI_I440FX) += igd_pt.o
+common-obj-$(CONFIG_INTEL_IGD_PASSTHROUGH) += igd_pt.o
common-obj-$(CONFIG_PCI_EXPRESS_Q35) += q35.o
common-obj-$(CONFIG_PCI_EXPRESS_GENERIC_BRIDGE) += gpex.o
common-obj-$(CONFIG_PCI_EXPRESS_XILINX) += xilinx-pcie.o
--
2.21.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH-for-5.0 v2 6/6] hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge
2019-12-06 17:25 ` [PATCH-for-5.0 v2 6/6] hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge Philippe Mathieu-Daudé
@ 2019-12-06 21:38 ` Alex Williamson
0 siblings, 0 replies; 8+ messages in thread
From: Alex Williamson @ 2019-12-06 21:38 UTC (permalink / raw)
To: Philippe Mathieu-Daudé
Cc: Markus Armbruster, Thomas Huth, Paolo Bonzini, qemu-devel,
Michael S. Tsirkin
On Fri, 6 Dec 2019 18:25:14 +0100
Philippe Mathieu-Daudé <philmd@redhat.com> wrote:
> Add the INTEL_IGD_PASSTHROUGH Kconfig option.
>
> Since it is implied by the PCI_I440FX option, this does not change
> the default selection. However users are now able to deselelect it.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> hw/pci-host/Kconfig | 4 ++++
> hw/pci-host/Makefile.objs | 2 +-
> 2 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/hw/pci-host/Kconfig b/hw/pci-host/Kconfig
> index b0aa8351c4..8c88a7b9dd 100644
> --- a/hw/pci-host/Kconfig
> +++ b/hw/pci-host/Kconfig
> @@ -1,6 +1,9 @@
> config PAM
> bool
>
> +config INTEL_IGD_PASSTHROUGH
> + bool
I'd be tempted to suggest a 'depends on XEN' here and maybe use XEN in
the config name and perhaps the file name in patch 5/6 as well.
There's already confusion as to the extent that this is used
generically between both Xen and vfio assignment (it's not), so might as
well take this opportunity. Thanks,
Alex
> +
> config PREP_PCI
> bool
> select PCI
> @@ -32,6 +35,7 @@ config PCI_I440FX
> bool
> select PCI
> select PAM
> + imply INTEL_IGD_PASSTHROUGH
>
> config PCI_EXPRESS_Q35
> bool
> diff --git a/hw/pci-host/Makefile.objs b/hw/pci-host/Makefile.objs
> index 5affd21899..9dbd0f9042 100644
> --- a/hw/pci-host/Makefile.objs
> +++ b/hw/pci-host/Makefile.objs
> @@ -14,7 +14,7 @@ common-obj-$(CONFIG_VERSATILE_PCI) += versatile.o
> common-obj-$(CONFIG_PCI_SABRE) += sabre.o
> common-obj-$(CONFIG_FULONG) += bonito.o
> common-obj-$(CONFIG_PCI_I440FX) += i440fx.o
> -common-obj-$(CONFIG_PCI_I440FX) += igd_pt.o
> +common-obj-$(CONFIG_INTEL_IGD_PASSTHROUGH) += igd_pt.o
> common-obj-$(CONFIG_PCI_EXPRESS_Q35) += q35.o
> common-obj-$(CONFIG_PCI_EXPRESS_GENERIC_BRIDGE) += gpex.o
> common-obj-$(CONFIG_PCI_EXPRESS_XILINX) += xilinx-pcie.o
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2019-12-06 21:41 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-06 17:25 [PATCH-for-5.0 v2 0/6] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 1/6] hw/pci-host/i440fx: Correct the header description Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 2/6] hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h" Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 3/6] hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE() Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 4/6] hw/pci-host/i440fx: Use existing definitions instead of magic values Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 5/6] hw/pci-host/i440fx: Extract the IGD Passthrough Host Bridge device Philippe Mathieu-Daudé
2019-12-06 17:25 ` [PATCH-for-5.0 v2 6/6] hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge Philippe Mathieu-Daudé
2019-12-06 21:38 ` Alex Williamson
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