[Qemu-devel] [PULL 0/3] QOM CPUState patch queue 2015-03-17

[Qemu-devel] [PULL 0/3] QOM CPUState patch queue 2015-03-17

[Andreas Färber]

Hello Peter,

This is my QOM CPU patch queue. Please pull.

I'm taking the liberty to also include a trivial x86 patch by Eduardo.

Regards,
Andreas

Cc: Peter Maydell <peter.maydell@linaro.org>

Cc: Eduardo Habkost <ehabkost@redhat.com>

The following changes since commit 5a4992834daec85c3913654903fb9f4f954e585a:

  Merge remote-tracking branch 'remotes/armbru/tags/pull-cov-model-2015-03-17' into staging (2015-03-17 11:43:00 +0000)

are available in the git repository at:

  git://github.com/afaerber/qemu-cpu.git tags/qom-cpu-for-peter

for you to fetch changes up to e1570d0005f29f97d4b1d603b4548591340c57e1:

  target-i386: Remove icc_bridge parameter from cpu_x86_create() (2015-03-17 14:51:49 +0100)

----------------------------------------------------------------
QOM CPUState and X86CPU

* QTest for PC X86CPU
* Confinement of ICC bridge X86CPU parenting to PC code

----------------------------------------------------------------
Andreas Färber (2):
      pc: Suppress APIC ID compatibility warning for QTest
      tests: Add PC CPU test

Eduardo Habkost (1):
      target-i386: Remove icc_bridge parameter from cpu_x86_create()

 hw/i386/pc.c        |  19 +++++--
 target-i386/cpu.c   |  14 +----
 target-i386/cpu.h   |   3 +-
 tests/Makefile      |   2 +
 tests/pc-cpu-test.c | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 166 insertions(+), 19 deletions(-)
 create mode 100644 tests/pc-cpu-test.c

[Qemu-devel] [PULL 1/3] pc: Suppress APIC ID compatibility warning for QTest

[Andreas Färber]

This avoids cluttering GTester output with irrelevant warnings.

Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 hw/i386/pc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index b5b2aad..642105f 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -45,6 +45,7 @@
 #include "sysemu/sysemu.h"
 #include "sysemu/numa.h"
 #include "sysemu/kvm.h"
+#include "sysemu/qtest.h"
 #include "kvm_i386.h"
 #include "hw/xen/xen.h"
 #include "sysemu/block-backend.h"
@@ -653,7 +654,7 @@ static uint32_t x86_cpu_apic_id_from_index(unsigned int cpu_index)
 
     correct_id = x86_apicid_from_cpu_idx(smp_cores, smp_threads, cpu_index);
     if (compat_apic_id_mode) {
-        if (cpu_index != correct_id && !warned) {
+        if (cpu_index != correct_id && !warned && !qtest_enabled()) {
             error_report("APIC IDs set in compatibility mode, "
                          "CPU topology won't match the configuration");
             warned = true;
-- 
2.1.4

[Qemu-devel] [PULL 2/3] tests: Add PC CPU test

[Andreas Färber]

Test non-default -smp core and thread counts and a non-default CPU model
on all PC machines except for isapc. Note that not all historic versions
actually supported this particular configuration, ignored for simplicity.

For machines pc-*-1.5+ test QMP cpu-add with monotonically increasing ID,
and test for graceful failure otherwise.

Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 tests/Makefile      |   2 +
 tests/pc-cpu-test.c | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 149 insertions(+)
 create mode 100644 tests/pc-cpu-test.c

diff --git a/tests/Makefile b/tests/Makefile
index 1ef95c9..55aa745 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -173,6 +173,7 @@ gcov-files-i386-y += hw/usb/dev-hid.c
 gcov-files-i386-y += hw/usb/dev-storage.c
 check-qtest-i386-y += tests/usb-hcd-xhci-test$(EXESUF)
 gcov-files-i386-y += hw/usb/hcd-xhci.c
+check-qtest-i386-y += tests/pc-cpu-test$(EXESUF)
 check-qtest-i386-$(CONFIG_LINUX) += tests/vhost-user-test$(EXESUF)
 check-qtest-x86_64-y = $(check-qtest-i386-y)
 gcov-files-i386-y += i386-softmmu/hw/timer/mc146818rtc.c
@@ -363,6 +364,7 @@ tests/usb-hcd-ohci-test$(EXESUF): tests/usb-hcd-ohci-test.o $(libqos-usb-obj-y)
 tests/usb-hcd-uhci-test$(EXESUF): tests/usb-hcd-uhci-test.o $(libqos-usb-obj-y)
 tests/usb-hcd-ehci-test$(EXESUF): tests/usb-hcd-ehci-test.o $(libqos-usb-obj-y)
 tests/usb-hcd-xhci-test$(EXESUF): tests/usb-hcd-xhci-test.o $(libqos-usb-obj-y)
+tests/pc-cpu-test$(EXESUF): tests/pc-cpu-test.o
 tests/vhost-user-test$(EXESUF): tests/vhost-user-test.o qemu-char.o qemu-timer.o $(qtest-obj-y)
 tests/qemu-iotests/socket_scm_helper$(EXESUF): tests/qemu-iotests/socket_scm_helper.o
 tests/test-qemu-opts$(EXESUF): tests/test-qemu-opts.o libqemuutil.a libqemustub.a
diff --git a/tests/pc-cpu-test.c b/tests/pc-cpu-test.c
new file mode 100644
index 0000000..a0122d3
--- /dev/null
+++ b/tests/pc-cpu-test.c
@@ -0,0 +1,147 @@
+/*
+ * QTest testcase for PC CPUs
+ *
+ * Copyright (c) 2015 SUSE Linux GmbH
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <glib.h>
+#include <string.h>
+
+#include "qemu-common.h"
+#include "libqtest.h"
+#include "qemu/osdep.h"
+#include "qapi/qmp/types.h"
+
+struct PCTestData {
+    const char *machine;
+    const char *cpu_model;
+    unsigned sockets;
+    unsigned cores;
+    unsigned threads;
+    unsigned maxcpus;
+};
+typedef struct PCTestData PCTestData;
+
+static void test_pc_with_cpu_add(gconstpointer data)
+{
+    const PCTestData *s = data;
+    char *args;
+    QDict *response;
+    unsigned int i;
+
+    args = g_strdup_printf("-machine %s -cpu %s "
+                           "-smp sockets=%u,cores=%u,threads=%u,maxcpus=%u",
+                           s->machine, s->cpu_model,
+                           s->sockets, s->cores, s->threads, s->maxcpus);
+    qtest_start(args);
+
+    for (i = s->sockets * s->cores * s->threads; i < s->maxcpus; i++) {
+        response = qmp("{ 'execute': 'cpu-add',"
+                       "  'arguments': { 'id': %d } }", i);
+        g_assert(response);
+        g_assert(!qdict_haskey(response, "error"));
+        QDECREF(response);
+    }
+
+    qtest_end();
+    g_free(args);
+}
+
+static void test_pc_without_cpu_add(gconstpointer data)
+{
+    const PCTestData *s = data;
+    char *args;
+    QDict *response;
+
+    args = g_strdup_printf("-machine %s -cpu %s "
+                           "-smp sockets=%u,cores=%u,threads=%u,maxcpus=%u",
+                           s->machine, s->cpu_model,
+                           s->sockets, s->cores, s->threads, s->maxcpus);
+    qtest_start(args);
+
+    response = qmp("{ 'execute': 'cpu-add',"
+                   "  'arguments': { 'id': %d } }",
+                   s->sockets * s->cores * s->threads);
+    g_assert(response);
+    g_assert(qdict_haskey(response, "error"));
+    QDECREF(response);
+
+    qtest_end();
+    g_free(args);
+}
+
+static void add_pc_test_cases(void)
+{
+    const char *arch = qtest_get_arch();
+    QDict *response, *minfo;
+    QList *list;
+    const QListEntry *p;
+    QObject *qobj;
+    QString *qstr;
+    const char *mname, *path;
+    PCTestData *data;
+
+    qtest_start("-machine none");
+    response = qmp("{ 'execute': 'query-machines' }");
+    g_assert(response);
+    list = qdict_get_qlist(response, "return");
+    g_assert(list);
+
+    for (p = qlist_first(list); p; p = qlist_next(p)) {
+        minfo = qobject_to_qdict(qlist_entry_obj(p));
+        g_assert(minfo);
+        qobj = qdict_get(minfo, "name");
+        g_assert(qobj);
+        qstr = qobject_to_qstring(qobj);
+        g_assert(qstr);
+        mname = qstring_get_str(qstr);
+        if (!g_str_has_prefix(mname, "pc-")) {
+            continue;
+        }
+        data = g_malloc(sizeof(PCTestData));
+        data->machine = mname;
+        data->cpu_model = "Haswell"; /* 1.3+ theoretically */
+        data->sockets = 1;
+        data->cores = 3;
+        data->threads = 2;
+        data->maxcpus = data->sockets * data->cores * data->threads * 2;
+        if (g_str_has_suffix(mname, "-1.4") ||
+            (strcmp(mname, "pc-1.3") == 0) ||
+            (strcmp(mname, "pc-1.2") == 0) ||
+            (strcmp(mname, "pc-1.1") == 0) ||
+            (strcmp(mname, "pc-1.0") == 0) ||
+            (strcmp(mname, "pc-0.15") == 0) ||
+            (strcmp(mname, "pc-0.14") == 0) ||
+            (strcmp(mname, "pc-0.13") == 0) ||
+            (strcmp(mname, "pc-0.12") == 0) ||
+            (strcmp(mname, "pc-0.11") == 0) ||
+            (strcmp(mname, "pc-0.10") == 0)) {
+            path = g_strdup_printf("/%s/cpu/%s/init/%ux%ux%u&maxcpus=%u",
+                                   arch, mname, data->sockets, data->cores,
+                                   data->threads, data->maxcpus);
+            g_test_add_data_func(path, data, test_pc_without_cpu_add);
+        } else {
+            path = g_strdup_printf("/%s/cpu/%s/add/%ux%ux%u&maxcpus=%u",
+                                   arch, mname, data->sockets, data->cores,
+                                   data->threads, data->maxcpus);
+            g_test_add_data_func(path, data, test_pc_with_cpu_add);
+        }
+    }
+    qtest_end();
+}
+
+int main(int argc, char **argv)
+{
+    const char *arch = qtest_get_arch();
+
+    g_test_init(&argc, &argv, NULL);
+
+    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
+        add_pc_test_cases();
+    }
+
+    return g_test_run();
+}
-- 
2.1.4

[Qemu-devel] [PULL 3/3] target-i386: Remove icc_bridge parameter from cpu_x86_create()

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Instead of passing icc_bridge from the PC initialization code to
cpu_x86_create(), make the PC initialization code attach the CPU to
icc_bridge.

The only difference here is that icc_bridge attachment will now be done
after x86_cpu_parse_featurestr() is called. But this shouldn't make any
difference, as property setters shouldn't depend on icc_bridge.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 hw/i386/pc.c      | 16 ++++++++++++----
 target-i386/cpu.c | 14 ++------------
 target-i386/cpu.h |  3 +--
 3 files changed, 15 insertions(+), 18 deletions(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 642105f..4b46c29 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -993,18 +993,26 @@ void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
 static X86CPU *pc_new_cpu(const char *cpu_model, int64_t apic_id,
                           DeviceState *icc_bridge, Error **errp)
 {
-    X86CPU *cpu;
+    X86CPU *cpu = NULL;
     Error *local_err = NULL;
 
-    cpu = cpu_x86_create(cpu_model, icc_bridge, &local_err);
+    if (icc_bridge == NULL) {
+        error_setg(&local_err, "Invalid icc-bridge value");
+        goto out;
+    }
+
+    cpu = cpu_x86_create(cpu_model, &local_err);
     if (local_err != NULL) {
-        error_propagate(errp, local_err);
-        return NULL;
+        goto out;
     }
 
+    qdev_set_parent_bus(DEVICE(cpu), qdev_get_child_bus(icc_bridge, "icc"));
+    object_unref(OBJECT(cpu));
+
     object_property_set_int(OBJECT(cpu), apic_id, "apic-id", &local_err);
     object_property_set_bool(OBJECT(cpu), true, "realized", &local_err);
 
+out:
     if (local_err) {
         error_propagate(errp, local_err);
         object_unref(OBJECT(cpu));
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index ed7e5d5..f01690b 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2076,8 +2076,7 @@ static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
 
 }
 
-X86CPU *cpu_x86_create(const char *cpu_model, DeviceState *icc_bridge,
-                       Error **errp)
+X86CPU *cpu_x86_create(const char *cpu_model, Error **errp)
 {
     X86CPU *cpu = NULL;
     X86CPUClass *xcc;
@@ -2108,15 +2107,6 @@ X86CPU *cpu_x86_create(const char *cpu_model, DeviceState *icc_bridge,
 
     cpu = X86_CPU(object_new(object_class_get_name(oc)));
 
-#ifndef CONFIG_USER_ONLY
-    if (icc_bridge == NULL) {
-        error_setg(&error, "Invalid icc-bridge value");
-        goto out;
-    }
-    qdev_set_parent_bus(DEVICE(cpu), qdev_get_child_bus(icc_bridge, "icc"));
-    object_unref(OBJECT(cpu));
-#endif
-
     x86_cpu_parse_featurestr(CPU(cpu), features, &error);
     if (error) {
         goto out;
@@ -2139,7 +2129,7 @@ X86CPU *cpu_x86_init(const char *cpu_model)
     Error *error = NULL;
     X86CPU *cpu;
 
-    cpu = cpu_x86_create(cpu_model, NULL, &error);
+    cpu = cpu_x86_create(cpu_model, &error);
     if (error) {
         goto out;
     }
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index e4c27b1..15db6d7 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -982,8 +982,7 @@ typedef struct CPUX86State {
 #include "cpu-qom.h"
 
 X86CPU *cpu_x86_init(const char *cpu_model);
-X86CPU *cpu_x86_create(const char *cpu_model, DeviceState *icc_bridge,
-                       Error **errp);
+X86CPU *cpu_x86_create(const char *cpu_model, Error **errp);
 int cpu_x86_exec(CPUX86State *s);
 void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf);
 void x86_cpudef_setup(void);
-- 
2.1.4

Re: [Qemu-devel] [PULL 0/3] QOM CPUState patch queue 2015-03-17

[Peter Maydell]

On 17 March 2015 at 15:30, Andreas Färber <afaerber@suse.de> wrote:
> Hello Peter,
>
> This is my QOM CPU patch queue. Please pull.
>
> I'm taking the liberty to also include a trivial x86 patch by Eduardo.
>
> Regards,
> Andreas
>
> Cc: Peter Maydell <peter.maydell@linaro.org>
>
> Cc: Eduardo Habkost <ehabkost@redhat.com>
>
> The following changes since commit 5a4992834daec85c3913654903fb9f4f954e585a:
>
>   Merge remote-tracking branch 'remotes/armbru/tags/pull-cov-model-2015-03-17' into staging (2015-03-17 11:43:00 +0000)
>
> are available in the git repository at:
>
>   git://github.com/afaerber/qemu-cpu.git tags/qom-cpu-for-peter
>
> for you to fetch changes up to e1570d0005f29f97d4b1d603b4548591340c57e1:
>
>   target-i386: Remove icc_bridge parameter from cpu_x86_create() (2015-03-17 14:51:49 +0100)
>
> ----------------------------------------------------------------
> QOM CPUState and X86CPU
>
> * QTest for PC X86CPU
> * Confinement of ICC bridge X86CPU parenting to PC code
>
> ----------------------------------------------------------------

Applied, thanks.

-- PMM