[Qemu-devel] [PULL 00/19] QOM CPUState patch queue 2014-06-26

[Qemu-devel] [PULL 00/19] QOM CPUState patch queue 2014-06-26

[Andreas Färber]

Hello Peter,

This is my long delayed QOM CPU patch queue. Please pull.

Regards,
Andreas

Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Anthony Liguori <anthony@codemonkey.ws>

Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>

The following changes since commit 2b5b7ae917e8db48431631b1c5d909fa46c223a6:

  Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-06-24' into staging (2014-06-24 17:14:57 +0100)

are available in the git repository at:


  git://github.com/afaerber/qemu-cpu.git tags/qom-cpu-for-2.1

for you to fetch changes up to ece01354073f8e02db0205ea7522f3dbf589c9aa:

  target-i386: Broadwell CPU model (2014-06-25 23:54:57 +0200)

----------------------------------------------------------------
X86CPU

* Filter out MONITOR for KVM
* Fix filtering for TCG
* -cpu foo,check and -cpu foo,enforce support for TCG
* -cpu host migration support (-cpu host,migratable=no to disable)
* Add invtsc feature support
* New model: Broadwell

----------------------------------------------------------------
Eduardo Habkost (16):
      target-i386: kvm: Don't enable MONITOR by default on any CPU model
      target-i386: Simplify reporting of unavailable features
      target-i386: Merge feature filtering/checking functions
      target-i386: Pass FeatureWord argument to report_unavailable_features()
      target-i386: Isolate KVM-specific code on CPU feature filtering logic
      target-i386: Make TCG feature filtering more readable
      target-i386: Filter FEAT_7_0_EBX TCG features too
      target-i386: Filter KVM and 0xC0000001 features on TCG
      target-i386: Define TCG_*_FEATURES earlier in cpu.c
      target-i386: Loop-based copying and setting/unsetting of feature words
      target-i386: Loop-based feature word filtering in TCG mode
      target-i386: Support check/enforce flags in TCG mode, too
      target-i386: Add "migratable" property to "host" CPU model
      target-i386: Set migratable=yes by default on "host" CPU mooel
      target-i386: Fix indentation of CPU model definitions
      target-i386: Broadwell CPU model

Marcelo Tosatti (3):
      savevm: check vmsd for migratability status
      target-i386: block migration and savevm if invariant tsc is exposed
      target-i386: Support "invariant tsc" flag

 savevm.c              |   5 +-
 target-i386/cpu-qom.h |   6 +-
 target-i386/cpu.c     | 566 +++++++++++++++++++++++++++++---------------------
 target-i386/cpu.h     |   4 +
 target-i386/kvm.c     |  15 ++
 target-i386/machine.c |   2 +-
 6 files changed, 357 insertions(+), 241 deletions(-)

[Qemu-devel] [PULL 01/19] target-i386: kvm: Don't enable MONITOR by default on any CPU model

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

KVM never supported the MONITOR flag so it doesn't make sense to have it
enabled by default when KVM is enabled.

The rationale here is similar to the cases where it makes sense to have
a feature enabled by default on all CPU models when on KVM mode (e.g.
x2apic). In this case we are having a feature disabled by default for
the same reasons.

In this case we don't need machine-type compat code because it is
currently impossible to run a KVM VM with the MONITOR flag set.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 8983457..23ce915 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -373,6 +373,12 @@ static uint32_t kvm_default_features[FEATURE_WORDS] = {
     [FEAT_1_ECX] = CPUID_EXT_X2APIC,
 };
 
+/* Features that are not added by default to any CPU model when KVM is enabled.
+ */
+static uint32_t kvm_default_unset_features[FEATURE_WORDS] = {
+    [FEAT_1_ECX] = CPUID_EXT_MONITOR,
+};
+
 void x86_cpu_compat_disable_kvm_features(FeatureWord w, uint32_t features)
 {
     kvm_default_features[w] &= ~features;
@@ -1888,6 +1894,7 @@ static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
         FeatureWord w;
         for (w = 0; w < FEATURE_WORDS; w++) {
             env->features[w] |= kvm_default_features[w];
+            env->features[w] &= ~kvm_default_unset_features[w];
         }
     }
 
-- 
1.8.4.5

[Qemu-devel] [PULL 02/19] target-i386: Simplify reporting of unavailable features

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Instead of checking and calling unavailable_host_feature() once for each
bit, simply call the function (now renamed to
report_unavailable_features()) once for each feature word.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[AF: Drop unused return value]
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 23ce915..e848f9c 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1234,11 +1234,11 @@ static const TypeInfo host_x86_cpu_type_info = {
 
 #endif
 
-static int unavailable_host_feature(FeatureWordInfo *f, uint32_t mask)
+static void report_unavailable_features(FeatureWordInfo *f, uint32_t mask)
 {
     int i;
 
-    for (i = 0; i < 32; ++i)
+    for (i = 0; i < 32; ++i) {
         if (1 << i & mask) {
             const char *reg = get_register_name_32(f->cpuid_reg);
             assert(reg);
@@ -1247,9 +1247,8 @@ static int unavailable_host_feature(FeatureWordInfo *f, uint32_t mask)
                 f->cpuid_eax, reg,
                 f->feat_names[i] ? "." : "",
                 f->feat_names[i] ? f->feat_names[i] : "", i);
-            break;
         }
-    return 0;
+    }
 }
 
 /* Check if all requested cpu flags are making their way to the guest
@@ -1272,12 +1271,10 @@ static int kvm_check_features_against_host(KVMState *s, X86CPU *cpu)
         uint32_t host_feat = kvm_arch_get_supported_cpuid(s, wi->cpuid_eax,
                                                              wi->cpuid_ecx,
                                                              wi->cpuid_reg);
-        uint32_t mask;
-        for (mask = 1; mask; mask <<= 1) {
-            if (guest_feat & mask && !(host_feat & mask)) {
-                unavailable_host_feature(wi, mask);
-                rv = 1;
-            }
+        uint32_t unavailable_features = guest_feat & ~host_feat;
+        if (unavailable_features) {
+            report_unavailable_features(wi, unavailable_features);
+            rv = 1;
         }
     }
     return rv;
-- 
1.8.4.5

[Qemu-devel] [PULL 03/19] target-i386: Merge feature filtering/checking functions

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Merge filter_features_for_kvm() and kvm_check_features_against_host().

Both functions made exactly the same calculations, the only difference
was that filter_features_for_kvm() changed the bits on cpu->features[],
and kvm_check_features_against_host() did error reporting.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 54 ++++++++++++++++++++----------------------------------
 1 file changed, 20 insertions(+), 34 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index e848f9c..f8c4993 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1251,35 +1251,6 @@ static void report_unavailable_features(FeatureWordInfo *f, uint32_t mask)
     }
 }
 
-/* Check if all requested cpu flags are making their way to the guest
- *
- * Returns 0 if all flags are supported by the host, non-zero otherwise.
- *
- * This function may be called only if KVM is enabled.
- */
-static int kvm_check_features_against_host(KVMState *s, X86CPU *cpu)
-{
-    CPUX86State *env = &cpu->env;
-    int rv = 0;
-    FeatureWord w;
-
-    assert(kvm_enabled());
-
-    for (w = 0; w < FEATURE_WORDS; w++) {
-        FeatureWordInfo *wi = &feature_word_info[w];
-        uint32_t guest_feat = env->features[w];
-        uint32_t host_feat = kvm_arch_get_supported_cpuid(s, wi->cpuid_eax,
-                                                             wi->cpuid_ecx,
-                                                             wi->cpuid_reg);
-        uint32_t unavailable_features = guest_feat & ~host_feat;
-        if (unavailable_features) {
-            report_unavailable_features(wi, unavailable_features);
-            rv = 1;
-        }
-    }
-    return rv;
-}
-
 static void x86_cpuid_version_get_family(Object *obj, Visitor *v, void *opaque,
                                          const char *name, Error **errp)
 {
@@ -1843,11 +1814,21 @@ CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
     return cpu_list;
 }
 
-static void filter_features_for_kvm(X86CPU *cpu)
+/*
+ * Filters CPU feature words based on host availability of each feature.
+ *
+ * This function may be called only if KVM is enabled.
+ *
+ * Returns: 0 if all flags are supported by the host, non-zero otherwise.
+ */
+static int filter_features_for_kvm(X86CPU *cpu)
 {
     CPUX86State *env = &cpu->env;
     KVMState *s = kvm_state;
     FeatureWord w;
+    int rv = 0;
+
+    assert(kvm_enabled());
 
     for (w = 0; w < FEATURE_WORDS; w++) {
         FeatureWordInfo *wi = &feature_word_info[w];
@@ -1857,7 +1838,15 @@ static void filter_features_for_kvm(X86CPU *cpu)
         uint32_t requested_features = env->features[w];
         env->features[w] &= host_feat;
         cpu->filtered_features[w] = requested_features & ~env->features[w];
+        if (cpu->filtered_features[w]) {
+            if (cpu->check_cpuid || cpu->enforce_cpuid) {
+                report_unavailable_features(wi, cpu->filtered_features[w]);
+            }
+            rv = 1;
+        }
     }
+
+    return rv;
 }
 
 /* Load data from X86CPUDefinition
@@ -2608,14 +2597,11 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
         env->features[FEAT_8000_0001_ECX] &= TCG_EXT3_FEATURES;
         env->features[FEAT_SVM] &= TCG_SVM_FEATURES;
     } else {
-        KVMState *s = kvm_state;
-        if ((cpu->check_cpuid || cpu->enforce_cpuid)
-            && kvm_check_features_against_host(s, cpu) && cpu->enforce_cpuid) {
+        if (filter_features_for_kvm(cpu) && cpu->enforce_cpuid) {
             error_setg(&local_err,
                        "Host's CPU doesn't support requested features");
             goto out;
         }
-        filter_features_for_kvm(cpu);
     }
 
 #ifndef CONFIG_USER_ONLY
-- 
1.8.4.5

[Qemu-devel] [PULL 04/19] target-i386: Pass FeatureWord argument to report_unavailable_features()

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

This will help us simplify the code that calls
report_unavailable_features() later.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index f8c4993..f2c3583 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1234,8 +1234,9 @@ static const TypeInfo host_x86_cpu_type_info = {
 
 #endif
 
-static void report_unavailable_features(FeatureWordInfo *f, uint32_t mask)
+static void report_unavailable_features(FeatureWord w, uint32_t mask)
 {
+    FeatureWordInfo *f = &feature_word_info[w];
     int i;
 
     for (i = 0; i < 32; ++i) {
@@ -1840,7 +1841,7 @@ static int filter_features_for_kvm(X86CPU *cpu)
         cpu->filtered_features[w] = requested_features & ~env->features[w];
         if (cpu->filtered_features[w]) {
             if (cpu->check_cpuid || cpu->enforce_cpuid) {
-                report_unavailable_features(wi, cpu->filtered_features[w]);
+                report_unavailable_features(w, cpu->filtered_features[w]);
             }
             rv = 1;
         }
-- 
1.8.4.5

[Qemu-devel] [PULL 05/19] target-i386: Isolate KVM-specific code on CPU feature filtering logic

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

This will allow us to re-use the feature filtering logic (and the
check/enforce flag logic) for TCG.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index f2c3583..5e12556 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1815,6 +1815,16 @@ CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
     return cpu_list;
 }
 
+static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w)
+{
+    FeatureWordInfo *wi = &feature_word_info[w];
+
+    assert(kvm_enabled());
+    return kvm_arch_get_supported_cpuid(kvm_state, wi->cpuid_eax,
+                                                   wi->cpuid_ecx,
+                                                   wi->cpuid_reg);
+}
+
 /*
  * Filters CPU feature words based on host availability of each feature.
  *
@@ -1822,20 +1832,14 @@ CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
  *
  * Returns: 0 if all flags are supported by the host, non-zero otherwise.
  */
-static int filter_features_for_kvm(X86CPU *cpu)
+static int x86_cpu_filter_features(X86CPU *cpu)
 {
     CPUX86State *env = &cpu->env;
-    KVMState *s = kvm_state;
     FeatureWord w;
     int rv = 0;
 
-    assert(kvm_enabled());
-
     for (w = 0; w < FEATURE_WORDS; w++) {
-        FeatureWordInfo *wi = &feature_word_info[w];
-        uint32_t host_feat = kvm_arch_get_supported_cpuid(s, wi->cpuid_eax,
-                                                             wi->cpuid_ecx,
-                                                             wi->cpuid_reg);
+        uint32_t host_feat = x86_cpu_get_supported_feature_word(w);
         uint32_t requested_features = env->features[w];
         env->features[w] &= host_feat;
         cpu->filtered_features[w] = requested_features & ~env->features[w];
@@ -2598,7 +2602,7 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
         env->features[FEAT_8000_0001_ECX] &= TCG_EXT3_FEATURES;
         env->features[FEAT_SVM] &= TCG_SVM_FEATURES;
     } else {
-        if (filter_features_for_kvm(cpu) && cpu->enforce_cpuid) {
+        if (x86_cpu_filter_features(cpu) && cpu->enforce_cpuid) {
             error_setg(&local_err,
                        "Host's CPU doesn't support requested features");
             goto out;
-- 
1.8.4.5

[Qemu-devel] [PULL 06/19] target-i386: Make TCG feature filtering more readable

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Instead of an #ifdef in the middle of the code, just set
TCG_EXT2_FEATURES to a different value depending on TARGET_X86_64.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 5e12556..27666c7 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -572,9 +572,17 @@ struct X86CPUDefinition {
           CPUID_EXT_X2APIC, CPUID_EXT_TSC_DEADLINE_TIMER, CPUID_EXT_XSAVE,
           CPUID_EXT_OSXSAVE, CPUID_EXT_AVX, CPUID_EXT_F16C,
           CPUID_EXT_RDRAND */
+
+#ifdef TARGET_X86_64
+#define TCG_EXT2_X86_64_FEATURES (CPUID_EXT2_SYSCALL | CPUID_EXT2_LM)
+#else
+#define TCG_EXT2_X86_64_FEATURES 0
+#endif
+
 #define TCG_EXT2_FEATURES ((TCG_FEATURES & CPUID_EXT2_AMD_ALIASES) | \
           CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
-          CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_PDPE1GB)
+          CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_PDPE1GB | \
+          TCG_EXT2_X86_64_FEATURES)
 #define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
           CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
 #define TCG_SVM_FEATURES 0
@@ -2594,11 +2602,7 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
     if (!kvm_enabled()) {
         env->features[FEAT_1_EDX] &= TCG_FEATURES;
         env->features[FEAT_1_ECX] &= TCG_EXT_FEATURES;
-        env->features[FEAT_8000_0001_EDX] &= (TCG_EXT2_FEATURES
-#ifdef TARGET_X86_64
-            | CPUID_EXT2_SYSCALL | CPUID_EXT2_LM
-#endif
-            );
+        env->features[FEAT_8000_0001_EDX] &= TCG_EXT2_FEATURES;
         env->features[FEAT_8000_0001_ECX] &= TCG_EXT3_FEATURES;
         env->features[FEAT_SVM] &= TCG_SVM_FEATURES;
     } else {
-- 
1.8.4.5

[Qemu-devel] [PULL 07/19] target-i386: Filter FEAT_7_0_EBX TCG features too

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

The TCG_7_0_EBX_FEATURES macro was defined but never used (it even had a
typo that was never noticed). Make the existing TCG feature filtering
code use it.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 27666c7..077df27 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -586,7 +586,7 @@ struct X86CPUDefinition {
 #define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
           CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
 #define TCG_SVM_FEATURES 0
-#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP \
+#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
           CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX)
           /* missing:
           CPUID_7_0_EBX_FSGSBASE, CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
@@ -2602,6 +2602,7 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
     if (!kvm_enabled()) {
         env->features[FEAT_1_EDX] &= TCG_FEATURES;
         env->features[FEAT_1_ECX] &= TCG_EXT_FEATURES;
+        env->features[FEAT_7_0_EBX] &= TCG_7_0_EBX_FEATURES;
         env->features[FEAT_8000_0001_EDX] &= TCG_EXT2_FEATURES;
         env->features[FEAT_8000_0001_ECX] &= TCG_EXT3_FEATURES;
         env->features[FEAT_SVM] &= TCG_SVM_FEATURES;
-- 
1.8.4.5

[Qemu-devel] [PULL 08/19] target-i386: Filter KVM and 0xC0000001 features on TCG

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

TCG doesn't support any of the feature flags on FEAT_KVM and
FEAT_C000_0001_EDX feature words, so clear all bits on those feature
words.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 077df27..38b007f 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -585,7 +585,9 @@ struct X86CPUDefinition {
           TCG_EXT2_X86_64_FEATURES)
 #define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
           CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
+#define TCG_EXT4_FEATURES 0
 #define TCG_SVM_FEATURES 0
+#define TCG_KVM_FEATURES 0
 #define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
           CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX)
           /* missing:
@@ -2606,6 +2608,8 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
         env->features[FEAT_8000_0001_EDX] &= TCG_EXT2_FEATURES;
         env->features[FEAT_8000_0001_ECX] &= TCG_EXT3_FEATURES;
         env->features[FEAT_SVM] &= TCG_SVM_FEATURES;
+        env->features[FEAT_KVM] &= TCG_KVM_FEATURES;
+        env->features[FEAT_C000_0001_EDX] &= TCG_EXT4_FEATURES;
     } else {
         if (x86_cpu_filter_features(cpu) && cpu->enforce_cpuid) {
             error_setg(&local_err,
-- 
1.8.4.5

[Qemu-devel] [PULL 09/19] target-i386: Define TCG_*_FEATURES earlier in cpu.c

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Those macros will be used in the feature_word_info array data, so need
to be defined earlier.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 111 +++++++++++++++++++++++++++---------------------------
 1 file changed, 56 insertions(+), 55 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 38b007f..6eb5f05 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -263,6 +263,62 @@ static const char *cpuid_7_0_ebx_feature_name[] = {
     NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 };
 
+#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
+#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
+          CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
+#define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
+          CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
+          CPUID_PSE36 | CPUID_FXSR)
+#define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
+#define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
+          CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
+          CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
+          CPUID_PAE | CPUID_SEP | CPUID_APIC)
+
+#define TCG_FEATURES (CPUID_FP87 | CPUID_PSE | CPUID_TSC | CPUID_MSR | \
+          CPUID_PAE | CPUID_MCE | CPUID_CX8 | CPUID_APIC | CPUID_SEP | \
+          CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
+          CPUID_PSE36 | CPUID_CLFLUSH | CPUID_ACPI | CPUID_MMX | \
+          CPUID_FXSR | CPUID_SSE | CPUID_SSE2 | CPUID_SS)
+          /* partly implemented:
+          CPUID_MTRR, CPUID_MCA, CPUID_CLFLUSH (needed for Win64) */
+          /* missing:
+          CPUID_VME, CPUID_DTS, CPUID_SS, CPUID_HT, CPUID_TM, CPUID_PBE */
+#define TCG_EXT_FEATURES (CPUID_EXT_SSE3 | CPUID_EXT_PCLMULQDQ | \
+          CPUID_EXT_MONITOR | CPUID_EXT_SSSE3 | CPUID_EXT_CX16 | \
+          CPUID_EXT_SSE41 | CPUID_EXT_SSE42 | CPUID_EXT_POPCNT | \
+          CPUID_EXT_MOVBE | CPUID_EXT_AES | CPUID_EXT_HYPERVISOR)
+          /* missing:
+          CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_SMX,
+          CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_CID, CPUID_EXT_FMA,
+          CPUID_EXT_XTPR, CPUID_EXT_PDCM, CPUID_EXT_PCID, CPUID_EXT_DCA,
+          CPUID_EXT_X2APIC, CPUID_EXT_TSC_DEADLINE_TIMER, CPUID_EXT_XSAVE,
+          CPUID_EXT_OSXSAVE, CPUID_EXT_AVX, CPUID_EXT_F16C,
+          CPUID_EXT_RDRAND */
+
+#ifdef TARGET_X86_64
+#define TCG_EXT2_X86_64_FEATURES (CPUID_EXT2_SYSCALL | CPUID_EXT2_LM)
+#else
+#define TCG_EXT2_X86_64_FEATURES 0
+#endif
+
+#define TCG_EXT2_FEATURES ((TCG_FEATURES & CPUID_EXT2_AMD_ALIASES) | \
+          CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
+          CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_PDPE1GB | \
+          TCG_EXT2_X86_64_FEATURES)
+#define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
+          CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
+#define TCG_EXT4_FEATURES 0
+#define TCG_SVM_FEATURES 0
+#define TCG_KVM_FEATURES 0
+#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
+          CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX)
+          /* missing:
+          CPUID_7_0_EBX_FSGSBASE, CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
+          CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
+          CPUID_7_0_EBX_RDSEED */
+
+
 typedef struct FeatureWordInfo {
     const char **feat_names;
     uint32_t cpuid_eax;   /* Input EAX for CPUID */
@@ -540,61 +596,6 @@ struct X86CPUDefinition {
     bool cache_info_passthrough;
 };
 
-#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
-#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
-          CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
-#define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
-          CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
-          CPUID_PSE36 | CPUID_FXSR)
-#define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
-#define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
-          CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
-          CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
-          CPUID_PAE | CPUID_SEP | CPUID_APIC)
-
-#define TCG_FEATURES (CPUID_FP87 | CPUID_PSE | CPUID_TSC | CPUID_MSR | \
-          CPUID_PAE | CPUID_MCE | CPUID_CX8 | CPUID_APIC | CPUID_SEP | \
-          CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
-          CPUID_PSE36 | CPUID_CLFLUSH | CPUID_ACPI | CPUID_MMX | \
-          CPUID_FXSR | CPUID_SSE | CPUID_SSE2 | CPUID_SS)
-          /* partly implemented:
-          CPUID_MTRR, CPUID_MCA, CPUID_CLFLUSH (needed for Win64) */
-          /* missing:
-          CPUID_VME, CPUID_DTS, CPUID_SS, CPUID_HT, CPUID_TM, CPUID_PBE */
-#define TCG_EXT_FEATURES (CPUID_EXT_SSE3 | CPUID_EXT_PCLMULQDQ | \
-          CPUID_EXT_MONITOR | CPUID_EXT_SSSE3 | CPUID_EXT_CX16 | \
-          CPUID_EXT_SSE41 | CPUID_EXT_SSE42 | CPUID_EXT_POPCNT | \
-          CPUID_EXT_MOVBE | CPUID_EXT_AES | CPUID_EXT_HYPERVISOR)
-          /* missing:
-          CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_SMX,
-          CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_CID, CPUID_EXT_FMA,
-          CPUID_EXT_XTPR, CPUID_EXT_PDCM, CPUID_EXT_PCID, CPUID_EXT_DCA,
-          CPUID_EXT_X2APIC, CPUID_EXT_TSC_DEADLINE_TIMER, CPUID_EXT_XSAVE,
-          CPUID_EXT_OSXSAVE, CPUID_EXT_AVX, CPUID_EXT_F16C,
-          CPUID_EXT_RDRAND */
-
-#ifdef TARGET_X86_64
-#define TCG_EXT2_X86_64_FEATURES (CPUID_EXT2_SYSCALL | CPUID_EXT2_LM)
-#else
-#define TCG_EXT2_X86_64_FEATURES 0
-#endif
-
-#define TCG_EXT2_FEATURES ((TCG_FEATURES & CPUID_EXT2_AMD_ALIASES) | \
-          CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
-          CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_PDPE1GB | \
-          TCG_EXT2_X86_64_FEATURES)
-#define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
-          CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
-#define TCG_EXT4_FEATURES 0
-#define TCG_SVM_FEATURES 0
-#define TCG_KVM_FEATURES 0
-#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
-          CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX)
-          /* missing:
-          CPUID_7_0_EBX_FSGSBASE, CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
-          CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
-          CPUID_7_0_EBX_RDSEED */
-
 static X86CPUDefinition builtin_x86_defs[] = {
     {
         .name = "qemu64",
-- 
1.8.4.5

[Qemu-devel] [PULL 10/19] target-i386: Loop-based copying and setting/unsetting of feature words

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Now that we have the feature word arrays, we don't need to manually copy
each array item, we can simply iterate through each feature word.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 35 ++++++++++-------------------------
 1 file changed, 10 insertions(+), 25 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 6eb5f05..d05b8ec 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1649,6 +1649,7 @@ static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
 {
     X86CPU *cpu = X86_CPU(cs);
     char *featurestr; /* Single 'key=value" string being parsed */
+    FeatureWord w;
     /* Features to be added */
     FeatureWordArray plus_features = { 0 };
     /* Features to be removed */
@@ -1728,22 +1729,11 @@ static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
         }
         featurestr = strtok(NULL, ",");
     }
-    env->features[FEAT_1_EDX] |= plus_features[FEAT_1_EDX];
-    env->features[FEAT_1_ECX] |= plus_features[FEAT_1_ECX];
-    env->features[FEAT_8000_0001_EDX] |= plus_features[FEAT_8000_0001_EDX];
-    env->features[FEAT_8000_0001_ECX] |= plus_features[FEAT_8000_0001_ECX];
-    env->features[FEAT_C000_0001_EDX] |= plus_features[FEAT_C000_0001_EDX];
-    env->features[FEAT_KVM] |= plus_features[FEAT_KVM];
-    env->features[FEAT_SVM] |= plus_features[FEAT_SVM];
-    env->features[FEAT_7_0_EBX] |= plus_features[FEAT_7_0_EBX];
-    env->features[FEAT_1_EDX] &= ~minus_features[FEAT_1_EDX];
-    env->features[FEAT_1_ECX] &= ~minus_features[FEAT_1_ECX];
-    env->features[FEAT_8000_0001_EDX] &= ~minus_features[FEAT_8000_0001_EDX];
-    env->features[FEAT_8000_0001_ECX] &= ~minus_features[FEAT_8000_0001_ECX];
-    env->features[FEAT_C000_0001_EDX] &= ~minus_features[FEAT_C000_0001_EDX];
-    env->features[FEAT_KVM] &= ~minus_features[FEAT_KVM];
-    env->features[FEAT_SVM] &= ~minus_features[FEAT_SVM];
-    env->features[FEAT_7_0_EBX] &= ~minus_features[FEAT_7_0_EBX];
+
+    for (w = 0; w < FEATURE_WORDS; w++) {
+        env->features[w] |= plus_features[w];
+        env->features[w] &= ~minus_features[w];
+    }
 }
 
 /* generate a composite string into buf of all cpuid names in featureset
@@ -1872,24 +1862,19 @@ static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
     CPUX86State *env = &cpu->env;
     const char *vendor;
     char host_vendor[CPUID_VENDOR_SZ + 1];
+    FeatureWord w;
 
     object_property_set_int(OBJECT(cpu), def->level, "level", errp);
     object_property_set_int(OBJECT(cpu), def->family, "family", errp);
     object_property_set_int(OBJECT(cpu), def->model, "model", errp);
     object_property_set_int(OBJECT(cpu), def->stepping, "stepping", errp);
-    env->features[FEAT_1_EDX] = def->features[FEAT_1_EDX];
-    env->features[FEAT_1_ECX] = def->features[FEAT_1_ECX];
-    env->features[FEAT_8000_0001_EDX] = def->features[FEAT_8000_0001_EDX];
-    env->features[FEAT_8000_0001_ECX] = def->features[FEAT_8000_0001_ECX];
     object_property_set_int(OBJECT(cpu), def->xlevel, "xlevel", errp);
-    env->features[FEAT_KVM] = def->features[FEAT_KVM];
-    env->features[FEAT_SVM] = def->features[FEAT_SVM];
-    env->features[FEAT_C000_0001_EDX] = def->features[FEAT_C000_0001_EDX];
-    env->features[FEAT_7_0_EBX] = def->features[FEAT_7_0_EBX];
     env->cpuid_xlevel2 = def->xlevel2;
     cpu->cache_info_passthrough = def->cache_info_passthrough;
-
     object_property_set_str(OBJECT(cpu), def->model_id, "model-id", errp);
+    for (w = 0; w < FEATURE_WORDS; w++) {
+        env->features[w] = def->features[w];
+    }
 
     /* Special cases not set in the X86CPUDefinition structs: */
     if (kvm_enabled()) {
-- 
1.8.4.5

[Qemu-devel] [PULL 11/19] target-i386: Loop-based feature word filtering in TCG mode

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Instead of manually filtering each feature word, add a tcg_features
field to FeatureWordInfo, and use that field to filter all feature words
in TCG mode.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index d05b8ec..3e1dad7 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -325,42 +325,51 @@ typedef struct FeatureWordInfo {
     bool cpuid_needs_ecx; /* CPUID instruction uses ECX as input */
     uint32_t cpuid_ecx;   /* Input ECX value for CPUID */
     int cpuid_reg;        /* output register (R_* constant) */
+    uint32_t tcg_features; /* Feature flags supported by TCG */
 } FeatureWordInfo;
 
 static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
     [FEAT_1_EDX] = {
         .feat_names = feature_name,
         .cpuid_eax = 1, .cpuid_reg = R_EDX,
+        .tcg_features = TCG_FEATURES,
     },
     [FEAT_1_ECX] = {
         .feat_names = ext_feature_name,
         .cpuid_eax = 1, .cpuid_reg = R_ECX,
+        .tcg_features = TCG_EXT_FEATURES,
     },
     [FEAT_8000_0001_EDX] = {
         .feat_names = ext2_feature_name,
         .cpuid_eax = 0x80000001, .cpuid_reg = R_EDX,
+        .tcg_features = TCG_EXT2_FEATURES,
     },
     [FEAT_8000_0001_ECX] = {
         .feat_names = ext3_feature_name,
         .cpuid_eax = 0x80000001, .cpuid_reg = R_ECX,
+        .tcg_features = TCG_EXT3_FEATURES,
     },
     [FEAT_C000_0001_EDX] = {
         .feat_names = ext4_feature_name,
         .cpuid_eax = 0xC0000001, .cpuid_reg = R_EDX,
+        .tcg_features = TCG_EXT4_FEATURES,
     },
     [FEAT_KVM] = {
         .feat_names = kvm_feature_name,
         .cpuid_eax = KVM_CPUID_FEATURES, .cpuid_reg = R_EAX,
+        .tcg_features = TCG_KVM_FEATURES,
     },
     [FEAT_SVM] = {
         .feat_names = svm_feature_name,
         .cpuid_eax = 0x8000000A, .cpuid_reg = R_EDX,
+        .tcg_features = TCG_SVM_FEATURES,
     },
     [FEAT_7_0_EBX] = {
         .feat_names = cpuid_7_0_ebx_feature_name,
         .cpuid_eax = 7,
         .cpuid_needs_ecx = true, .cpuid_ecx = 0,
         .cpuid_reg = R_EBX,
+        .tcg_features = TCG_7_0_EBX_FEATURES,
     },
 };
 
@@ -2588,14 +2597,10 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
     }
 
     if (!kvm_enabled()) {
-        env->features[FEAT_1_EDX] &= TCG_FEATURES;
-        env->features[FEAT_1_ECX] &= TCG_EXT_FEATURES;
-        env->features[FEAT_7_0_EBX] &= TCG_7_0_EBX_FEATURES;
-        env->features[FEAT_8000_0001_EDX] &= TCG_EXT2_FEATURES;
-        env->features[FEAT_8000_0001_ECX] &= TCG_EXT3_FEATURES;
-        env->features[FEAT_SVM] &= TCG_SVM_FEATURES;
-        env->features[FEAT_KVM] &= TCG_KVM_FEATURES;
-        env->features[FEAT_C000_0001_EDX] &= TCG_EXT4_FEATURES;
+        FeatureWord w;
+        for (w = 0; w < FEATURE_WORDS; w++) {
+            env->features[w] &= feature_word_info[w].tcg_features;
+        }
     } else {
         if (x86_cpu_filter_features(cpu) && cpu->enforce_cpuid) {
             error_setg(&local_err,
-- 
1.8.4.5

[Qemu-devel] [PULL 12/19] target-i386: Support check/enforce flags in TCG mode, too

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

If enforce/check is specified in TCG mode, QEMU will ensure all CPU
features are supported by TCG, so no CPU feature is silently disabled.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[AF: Be explicit about TCG vs. !KVM]
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 3e1dad7..d789cba 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1263,8 +1263,9 @@ static void report_unavailable_features(FeatureWord w, uint32_t mask)
         if (1 << i & mask) {
             const char *reg = get_register_name_32(f->cpuid_reg);
             assert(reg);
-            fprintf(stderr, "warning: host doesn't support requested feature: "
+            fprintf(stderr, "warning: %s doesn't support requested feature: "
                 "CPUID.%02XH:%s%s%s [bit %d]\n",
+                kvm_enabled() ? "host" : "TCG",
                 f->cpuid_eax, reg,
                 f->feat_names[i] ? "." : "",
                 f->feat_names[i] ? f->feat_names[i] : "", i);
@@ -1829,17 +1830,20 @@ static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w)
 {
     FeatureWordInfo *wi = &feature_word_info[w];
 
-    assert(kvm_enabled());
-    return kvm_arch_get_supported_cpuid(kvm_state, wi->cpuid_eax,
-                                                   wi->cpuid_ecx,
-                                                   wi->cpuid_reg);
+    if (kvm_enabled()) {
+        return kvm_arch_get_supported_cpuid(kvm_state, wi->cpuid_eax,
+                                                       wi->cpuid_ecx,
+                                                       wi->cpuid_reg);
+    } else if (tcg_enabled()) {
+        return wi->tcg_features;
+    } else {
+        return ~0;
+    }
 }
 
 /*
  * Filters CPU feature words based on host availability of each feature.
  *
- * This function may be called only if KVM is enabled.
- *
  * Returns: 0 if all flags are supported by the host, non-zero otherwise.
  */
 static int x86_cpu_filter_features(X86CPU *cpu)
@@ -2596,17 +2600,13 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
            & CPUID_EXT2_AMD_ALIASES);
     }
 
-    if (!kvm_enabled()) {
-        FeatureWord w;
-        for (w = 0; w < FEATURE_WORDS; w++) {
-            env->features[w] &= feature_word_info[w].tcg_features;
-        }
-    } else {
-        if (x86_cpu_filter_features(cpu) && cpu->enforce_cpuid) {
-            error_setg(&local_err,
-                       "Host's CPU doesn't support requested features");
-            goto out;
-        }
+
+    if (x86_cpu_filter_features(cpu) && cpu->enforce_cpuid) {
+        error_setg(&local_err,
+                   kvm_enabled() ?
+                       "Host doesn't support requested features" :
+                       "TCG doesn't support requested features");
+        goto out;
     }
 
 #ifndef CONFIG_USER_ONLY
-- 
1.8.4.5

[Qemu-devel] [PULL 13/19] target-i386: Add "migratable" property to "host" CPU model

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

This flag will allow the user to choose between two modes:
 * All flags that can be enabled on the host, even if unmigratable
   (migratable=no);
 * All flags that can be enabled on the host, are known to QEMU
   and migratable (migratable=yes).

The default is still migratable=false, to keep current behavior, but
this will be changed to migratable=true by another patch.

My plan was to support the "migratable" flag on all CPU classes, but
have the default to "false" on all CPU models except "host". However,
DeviceClass has no mechanism to allow a child class to have a different
property default from the parent class yet, so by now only the "host"
CPU model will support the "migratable" flag.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu-qom.h |  4 ++++
 target-i386/cpu.c     | 60 +++++++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 55 insertions(+), 9 deletions(-)

diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h
index 0808cfc..ff3a5de 100644
--- a/target-i386/cpu-qom.h
+++ b/target-i386/cpu-qom.h
@@ -71,6 +71,9 @@ typedef struct X86CPUClass {
 /**
  * X86CPU:
  * @env: #CPUX86State
+ * @migratable: If set, only migratable flags will be accepted when "enforce"
+ * mode is used, and only migratable flags will be included in the "host"
+ * CPU model.
  *
  * An x86 CPU.
  */
@@ -88,6 +91,7 @@ typedef struct X86CPU {
     bool check_cpuid;
     bool enforce_cpuid;
     bool expose_kvm;
+    bool migratable;
 
     /* if true the CPUID code directly forward host cache leaves to the guest */
     bool cache_info_passthrough;
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index d789cba..7d8f9e7 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -326,6 +326,7 @@ typedef struct FeatureWordInfo {
     uint32_t cpuid_ecx;   /* Input ECX value for CPUID */
     int cpuid_reg;        /* output register (R_* constant) */
     uint32_t tcg_features; /* Feature flags supported by TCG */
+    uint32_t unmigratable_flags; /* Feature flags known to be unmigratable */
 } FeatureWordInfo;
 
 static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
@@ -449,6 +450,31 @@ void x86_cpu_compat_disable_kvm_features(FeatureWord w, uint32_t features)
     kvm_default_features[w] &= ~features;
 }
 
+/*
+ * Returns the set of feature flags that are supported and migratable by
+ * QEMU, for a given FeatureWord.
+ */
+static uint32_t x86_cpu_get_migratable_flags(FeatureWord w)
+{
+    FeatureWordInfo *wi = &feature_word_info[w];
+    uint32_t r = 0;
+    int i;
+
+    for (i = 0; i < 32; i++) {
+        uint32_t f = 1U << i;
+        /* If the feature name is unknown, it is not supported by QEMU yet */
+        if (!wi->feat_names[i]) {
+            continue;
+        }
+        /* Skip features known to QEMU, but explicitly marked as unmigratable */
+        if (wi->unmigratable_flags & f) {
+            continue;
+        }
+        r |= f;
+    }
+    return r;
+}
+
 void host_cpuid(uint32_t function, uint32_t count,
                 uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx)
 {
@@ -1194,12 +1220,18 @@ static int cpu_x86_fill_model_id(char *str)
 
 static X86CPUDefinition host_cpudef;
 
+static Property host_x86_cpu_properties[] = {
+    DEFINE_PROP_BOOL("migratable", X86CPU, migratable, false),
+    DEFINE_PROP_END_OF_LIST()
+};
+
 /* class_init for the "host" CPU model
  *
  * This function may be called before KVM is initialized.
  */
 static void host_x86_cpu_class_init(ObjectClass *oc, void *data)
 {
+    DeviceClass *dc = DEVICE_CLASS(oc);
     X86CPUClass *xcc = X86_CPU_CLASS(oc);
     uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
 
@@ -1221,8 +1253,13 @@ static void host_x86_cpu_class_init(ObjectClass *oc, void *data)
     /* level, xlevel, xlevel2, and the feature words are initialized on
      * instance_init, because they require KVM to be initialized.
      */
+
+    dc->props = host_x86_cpu_properties;
 }
 
+static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w,
+                                                   bool migratable_only);
+
 static void host_x86_cpu_initfn(Object *obj)
 {
     X86CPU *cpu = X86_CPU(obj);
@@ -1237,10 +1274,8 @@ static void host_x86_cpu_initfn(Object *obj)
     env->cpuid_xlevel2 = kvm_arch_get_supported_cpuid(s, 0xC0000000, 0, R_EAX);
 
     for (w = 0; w < FEATURE_WORDS; w++) {
-        FeatureWordInfo *wi = &feature_word_info[w];
         env->features[w] =
-            kvm_arch_get_supported_cpuid(s, wi->cpuid_eax, wi->cpuid_ecx,
-                                         wi->cpuid_reg);
+            x86_cpu_get_supported_feature_word(w, cpu->migratable);
     }
     object_property_set_bool(OBJECT(cpu), true, "pmu", &error_abort);
 }
@@ -1826,19 +1861,25 @@ CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
     return cpu_list;
 }
 
-static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w)
+static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w,
+                                                   bool migratable_only)
 {
     FeatureWordInfo *wi = &feature_word_info[w];
+    uint32_t r;
 
     if (kvm_enabled()) {
-        return kvm_arch_get_supported_cpuid(kvm_state, wi->cpuid_eax,
-                                                       wi->cpuid_ecx,
-                                                       wi->cpuid_reg);
+        r = kvm_arch_get_supported_cpuid(kvm_state, wi->cpuid_eax,
+                                                    wi->cpuid_ecx,
+                                                    wi->cpuid_reg);
     } else if (tcg_enabled()) {
-        return wi->tcg_features;
+        r = wi->tcg_features;
     } else {
         return ~0;
     }
+    if (migratable_only) {
+        r &= x86_cpu_get_migratable_flags(w);
+    }
+    return r;
 }
 
 /*
@@ -1853,7 +1894,8 @@ static int x86_cpu_filter_features(X86CPU *cpu)
     int rv = 0;
 
     for (w = 0; w < FEATURE_WORDS; w++) {
-        uint32_t host_feat = x86_cpu_get_supported_feature_word(w);
+        uint32_t host_feat =
+            x86_cpu_get_supported_feature_word(w, cpu->migratable);
         uint32_t requested_features = env->features[w];
         env->features[w] &= host_feat;
         cpu->filtered_features[w] = requested_features & ~env->features[w];
-- 
1.8.4.5

[Qemu-devel] [PULL 14/19] target-i386: Set migratable=yes by default on "host" CPU mooel

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Having only migratable flags reported by default on the "host" CPU model
is safer for the following reasons:

 * Existing users may expect "-cpu host" to be migration-safe, if they
   take care of always using compatible host CPUs, host kernels, and
   QEMU versions.
 * Users who don't care aboug migration and want to enable all features
   supported by the host kernel can simply change their setup to use
   migratable=no.

Without this change, people using "-cpu host" will stop being able to
migrate, because now "invtsc" is getting enabled by default.

We are not setting migratable=yes by default on all X86CPU subclasses,
because users should be able to get non-migratable features enabled if
they ask for them explicitly.

Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 7d8f9e7..b651a94 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1221,7 +1221,7 @@ static int cpu_x86_fill_model_id(char *str)
 static X86CPUDefinition host_cpudef;
 
 static Property host_x86_cpu_properties[] = {
-    DEFINE_PROP_BOOL("migratable", X86CPU, migratable, false),
+    DEFINE_PROP_BOOL("migratable", X86CPU, migratable, true),
     DEFINE_PROP_END_OF_LIST()
 };
 
-- 
1.8.4.5

[Qemu-devel] [PULL 15/19] savevm: check vmsd for migratability status

[Andreas Färber]

From: Marcelo Tosatti <mtosatti@redhat.com>

Check vmsd for unmigratable field, allowing migratibility status
to be modified after vmstate_register.

Cc: Juan Quintela <quintela@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 savevm.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/savevm.c b/savevm.c
index ba900d3..e19ae0a 100644
--- a/savevm.c
+++ b/savevm.c
@@ -232,7 +232,6 @@ typedef struct SaveStateEntry {
     const VMStateDescription *vmsd;
     void *opaque;
     CompatEntry *compat;
-    int no_migrate;
     int is_ram;
 } SaveStateEntry;
 
@@ -430,7 +429,6 @@ int register_savevm_live(DeviceState *dev,
     se->ops = ops;
     se->opaque = opaque;
     se->vmsd = NULL;
-    se->no_migrate = 0;
     /* if this is a live_savem then set is_ram */
     if (ops->save_live_setup != NULL) {
         se->is_ram = 1;
@@ -521,7 +519,6 @@ int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
     se->opaque = opaque;
     se->vmsd = vmsd;
     se->alias_id = alias_id;
-    se->no_migrate = vmsd->unmigratable;
 
     if (dev) {
         char *id = qdev_get_dev_path(dev);
@@ -590,7 +587,7 @@ bool qemu_savevm_state_blocked(Error **errp)
     SaveStateEntry *se;
 
     QTAILQ_FOREACH(se, &savevm_handlers, entry) {
-        if (se->no_migrate) {
+        if (se->vmsd && se->vmsd->unmigratable) {
             error_setg(errp, "State blocked by non-migratable device '%s'",
                        se->idstr);
             return true;
-- 
1.8.4.5

[Qemu-devel] [PULL 16/19] target-i386: block migration and savevm if invariant tsc is exposed

[Andreas Färber]

From: Marcelo Tosatti <mtosatti@redhat.com>

Invariant TSC documentation mentions that "invariant TSC will run at a
constant rate in all ACPI P-, C-. and T-states".

This is not the case if migration to a host with different TSC frequency
is allowed, or if savevm is performed. So block migration/savevm.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[AF+mtosatti: Updated error message]
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu-qom.h |  2 +-
 target-i386/kvm.c     | 15 +++++++++++++++
 target-i386/machine.c |  2 +-
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h
index ff3a5de..71a1b97 100644
--- a/target-i386/cpu-qom.h
+++ b/target-i386/cpu-qom.h
@@ -121,7 +121,7 @@ static inline X86CPU *x86_env_get_cpu(CPUX86State *env)
 #define ENV_OFFSET offsetof(X86CPU, env)
 
 #ifndef CONFIG_USER_ONLY
-extern const struct VMStateDescription vmstate_x86_cpu;
+extern struct VMStateDescription vmstate_x86_cpu;
 #endif
 
 /**
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 4bf0ac9..097fe11 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -35,6 +35,8 @@
 #include "exec/ioport.h"
 #include <asm/hyperv.h>
 #include "hw/pci/pci.h"
+#include "migration/migration.h"
+#include "qapi/qmp/qerror.h"
 
 //#define DEBUG_KVM
 
@@ -448,6 +450,8 @@ static bool hyperv_enabled(X86CPU *cpu)
             cpu->hyperv_relaxed_timing);
 }
 
+static Error *invtsc_mig_blocker;
+
 #define KVM_MAX_CPUID_ENTRIES  100
 
 int kvm_arch_init_vcpu(CPUState *cs)
@@ -705,6 +709,17 @@ int kvm_arch_init_vcpu(CPUState *cs)
                                   !!(c->ecx & CPUID_EXT_SMX);
     }
 
+    c = cpuid_find_entry(&cpuid_data.cpuid, 0x80000007, 0);
+    if (c && (c->edx & 1<<8) && invtsc_mig_blocker == NULL) {
+        /* for migration */
+        error_setg(&invtsc_mig_blocker,
+                   "State blocked by non-migratable CPU device"
+                   " (invtsc flag)");
+        migrate_add_blocker(invtsc_mig_blocker);
+        /* for savevm */
+        vmstate_x86_cpu.unmigratable = 1;
+    }
+
     cpuid_data.cpuid.padding = 0;
     r = kvm_vcpu_ioctl(cs, KVM_SET_CPUID2, &cpuid_data);
     if (r) {
diff --git a/target-i386/machine.c b/target-i386/machine.c
index b8dcd2f..16d2f6a 100644
--- a/target-i386/machine.c
+++ b/target-i386/machine.c
@@ -603,7 +603,7 @@ static const VMStateDescription vmstate_msr_hyperv_time = {
     }
 };
 
-const VMStateDescription vmstate_x86_cpu = {
+VMStateDescription vmstate_x86_cpu = {
     .name = "cpu",
     .version_id = 12,
     .minimum_version_id = 3,
-- 
1.8.4.5

[Qemu-devel] [PULL 17/19] target-i386: Support "invariant tsc" flag

[Andreas Färber]

From: Marcelo Tosatti <mtosatti@redhat.com>

Expose "Invariant TSC" flag, if KVM is enabled. From Intel documentation:

17.13.1 Invariant TSC The time stamp counter in newer processors may
support an enhancement, referred to as invariant TSC. Processor’s
support for invariant TSC is indicated by CPUID.80000007H:EDX[8].
The invariant TSC will run at a constant rate in all ACPI P-, C-.
and T-states. This is the architectural behavior moving forward. On
processors with invariant TSC support, the OS may use the TSC for wall
clock timer services (instead of ACPI or HPET timers). TSC reads are
much more efficient and do not incur the overhead associated with a ring
transition or access to a platform resource.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
[ehabkost: redo feature filtering to use .tcg_features]
[ehabkost: add CPUID_APM_INVTSC macro, add it to .unmigratable_flags]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 25 +++++++++++++++++++++++++
 target-i386/cpu.h |  4 ++++
 2 files changed, 29 insertions(+)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index b651a94..4cfb9a3 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -263,6 +263,17 @@ static const char *cpuid_7_0_ebx_feature_name[] = {
     NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 };
 
+static const char *cpuid_apm_edx_feature_name[] = {
+    NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    "invtsc", NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+};
+
 #define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
 #define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
           CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
@@ -317,6 +328,7 @@ static const char *cpuid_7_0_ebx_feature_name[] = {
           CPUID_7_0_EBX_FSGSBASE, CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
           CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
           CPUID_7_0_EBX_RDSEED */
+#define TCG_APM_FEATURES 0
 
 
 typedef struct FeatureWordInfo {
@@ -372,6 +384,13 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
         .cpuid_reg = R_EBX,
         .tcg_features = TCG_7_0_EBX_FEATURES,
     },
+    [FEAT_8000_0007_EDX] = {
+        .feat_names = cpuid_apm_edx_feature_name,
+        .cpuid_eax = 0x80000007,
+        .cpuid_reg = R_EDX,
+        .tcg_features = TCG_APM_FEATURES,
+        .unmigratable_flags = CPUID_APM_INVTSC,
+    },
 };
 
 typedef struct X86RegisterInfo32 {
@@ -2385,6 +2404,12 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
                (AMD_ENC_ASSOC(L3_ASSOCIATIVITY) << 12) | \
                (L3_LINES_PER_TAG << 8) | (L3_LINE_SIZE);
         break;
+    case 0x80000007:
+        *eax = 0;
+        *ebx = 0;
+        *ecx = 0;
+        *edx = env->features[FEAT_8000_0007_EDX];
+        break;
     case 0x80000008:
         /* virtual & phys address size in low 2 bytes. */
 /* XXX: This value must match the one used in the MMU code. */
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index b5e1b41..e634d83 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -402,6 +402,7 @@ typedef enum FeatureWord {
     FEAT_7_0_EBX,       /* CPUID[EAX=7,ECX=0].EBX */
     FEAT_8000_0001_EDX, /* CPUID[8000_0001].EDX */
     FEAT_8000_0001_ECX, /* CPUID[8000_0001].ECX */
+    FEAT_8000_0007_EDX, /* CPUID[8000_0007].EDX */
     FEAT_C000_0001_EDX, /* CPUID[C000_0001].EDX */
     FEAT_KVM,           /* CPUID[4000_0001].EAX (KVM_CPUID_FEATURES) */
     FEAT_SVM,           /* CPUID[8000_000A].EDX */
@@ -561,6 +562,9 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
 #define CPUID_7_0_EBX_ADX      (1U << 19)
 #define CPUID_7_0_EBX_SMAP     (1U << 20)
 
+/* CPUID[0x80000007].EDX flags: */
+#define CPUID_APM_INVTSC       (1U << 8)
+
 #define CPUID_VENDOR_SZ      12
 
 #define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */
-- 
1.8.4.5

[Qemu-devel] [PULL 18/19] target-i386: Fix indentation of CPU model definitions

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 204 +++++++++++++++++++++++++++---------------------------
 1 file changed, 102 insertions(+), 102 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 4cfb9a3..9c386b0 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -898,10 +898,10 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 3,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_SSSE3 | CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
@@ -920,13 +920,13 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 3,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
-             CPUID_EXT_SSE3,
+            CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_NX | CPUID_EXT2_SYSCALL,
         .features[FEAT_8000_0001_ECX] =
@@ -943,13 +943,13 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 3,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_POPCNT | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
-             CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_SSE3,
+            CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
         .features[FEAT_8000_0001_ECX] =
@@ -966,14 +966,14 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 1,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_AES | CPUID_EXT_POPCNT | CPUID_EXT_SSE42 |
-             CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
-             CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3,
+            CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
+            CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
         .features[FEAT_8000_0001_ECX] =
@@ -990,19 +990,19 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 1,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
-             CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_POPCNT |
-             CPUID_EXT_X2APIC | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
-             CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ |
-             CPUID_EXT_SSE3,
+            CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_POPCNT |
+            CPUID_EXT_X2APIC | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
+            CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ |
+            CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_NX |
-             CPUID_EXT2_SYSCALL,
+            CPUID_EXT2_SYSCALL,
         .features[FEAT_8000_0001_ECX] =
             CPUID_EXT3_LAHF_LM,
         .xlevel = 0x8000000A,
@@ -1017,20 +1017,20 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 1,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
-             CPUID_EXT_POPCNT | CPUID_EXT_X2APIC | CPUID_EXT_SSE42 |
-             CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
-             CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3 |
-             CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_FMA | CPUID_EXT_MOVBE |
-             CPUID_EXT_PCID,
+            CPUID_EXT_POPCNT | CPUID_EXT_X2APIC | CPUID_EXT_SSE42 |
+            CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
+            CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3 |
+            CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_FMA | CPUID_EXT_MOVBE |
+            CPUID_EXT_PCID,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_NX |
-             CPUID_EXT2_SYSCALL,
+            CPUID_EXT2_SYSCALL,
         .features[FEAT_8000_0001_ECX] =
             CPUID_EXT3_LAHF_LM,
         .features[FEAT_7_0_EBX] =
@@ -1050,19 +1050,19 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 1,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
-             CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
-             CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
-             CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
-             CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
-             CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
+            CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
+            CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
+            CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
+            CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
+            CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
         .xlevel = 0x80000008,
         .model_id = "AMD Opteron 240 (Gen 1 Class Opteron)",
     },
@@ -1075,20 +1075,20 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 1,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_CX16 | CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_FXSR |
-             CPUID_EXT2_MMX | CPUID_EXT2_NX | CPUID_EXT2_PSE36 |
-             CPUID_EXT2_PAT | CPUID_EXT2_CMOV | CPUID_EXT2_MCA |
-             CPUID_EXT2_PGE | CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL |
-             CPUID_EXT2_APIC | CPUID_EXT2_CX8 | CPUID_EXT2_MCE |
-             CPUID_EXT2_PAE | CPUID_EXT2_MSR | CPUID_EXT2_TSC | CPUID_EXT2_PSE |
-             CPUID_EXT2_DE | CPUID_EXT2_FPU,
+            CPUID_EXT2_MMX | CPUID_EXT2_NX | CPUID_EXT2_PSE36 |
+            CPUID_EXT2_PAT | CPUID_EXT2_CMOV | CPUID_EXT2_MCA |
+            CPUID_EXT2_PGE | CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL |
+            CPUID_EXT2_APIC | CPUID_EXT2_CX8 | CPUID_EXT2_MCE |
+            CPUID_EXT2_PAE | CPUID_EXT2_MSR | CPUID_EXT2_TSC | CPUID_EXT2_PSE |
+            CPUID_EXT2_DE | CPUID_EXT2_FPU,
         .features[FEAT_8000_0001_ECX] =
             CPUID_EXT3_SVM | CPUID_EXT3_LAHF_LM,
         .xlevel = 0x80000008,
@@ -1103,24 +1103,24 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 1,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_POPCNT | CPUID_EXT_CX16 | CPUID_EXT_MONITOR |
-             CPUID_EXT_SSE3,
+            CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_FXSR |
-             CPUID_EXT2_MMX | CPUID_EXT2_NX | CPUID_EXT2_PSE36 |
-             CPUID_EXT2_PAT | CPUID_EXT2_CMOV | CPUID_EXT2_MCA |
-             CPUID_EXT2_PGE | CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL |
-             CPUID_EXT2_APIC | CPUID_EXT2_CX8 | CPUID_EXT2_MCE |
-             CPUID_EXT2_PAE | CPUID_EXT2_MSR | CPUID_EXT2_TSC | CPUID_EXT2_PSE |
-             CPUID_EXT2_DE | CPUID_EXT2_FPU,
+            CPUID_EXT2_MMX | CPUID_EXT2_NX | CPUID_EXT2_PSE36 |
+            CPUID_EXT2_PAT | CPUID_EXT2_CMOV | CPUID_EXT2_MCA |
+            CPUID_EXT2_PGE | CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL |
+            CPUID_EXT2_APIC | CPUID_EXT2_CX8 | CPUID_EXT2_MCE |
+            CPUID_EXT2_PAE | CPUID_EXT2_MSR | CPUID_EXT2_TSC | CPUID_EXT2_PSE |
+            CPUID_EXT2_DE | CPUID_EXT2_FPU,
         .features[FEAT_8000_0001_ECX] =
             CPUID_EXT3_MISALIGNSSE | CPUID_EXT3_SSE4A |
-             CPUID_EXT3_ABM | CPUID_EXT3_SVM | CPUID_EXT3_LAHF_LM,
+            CPUID_EXT3_ABM | CPUID_EXT3_SVM | CPUID_EXT3_LAHF_LM,
         .xlevel = 0x80000008,
         .model_id = "AMD Opteron 23xx (Gen 3 Class Opteron)",
     },
@@ -1133,28 +1133,28 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 2,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
-             CPUID_EXT_POPCNT | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
-             CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ |
-             CPUID_EXT_SSE3,
+            CPUID_EXT_POPCNT | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
+            CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ |
+            CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_RDTSCP |
-             CPUID_EXT2_PDPE1GB | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
-             CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
-             CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
-             CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
-             CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
-             CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
+            CPUID_EXT2_PDPE1GB | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
+            CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
+            CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
+            CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
+            CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
+            CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
         .features[FEAT_8000_0001_ECX] =
             CPUID_EXT3_FMA4 | CPUID_EXT3_XOP |
-             CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
-             CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
-             CPUID_EXT3_LAHF_LM,
+            CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
+            CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
+            CPUID_EXT3_LAHF_LM,
         .xlevel = 0x8000001A,
         .model_id = "AMD Opteron 62xx class CPU",
     },
@@ -1167,28 +1167,28 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .stepping = 0,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
-             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
-             CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
-             CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
-             CPUID_DE | CPUID_FP87,
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
         .features[FEAT_1_ECX] =
             CPUID_EXT_F16C | CPUID_EXT_AVX | CPUID_EXT_XSAVE |
-             CPUID_EXT_AES | CPUID_EXT_POPCNT | CPUID_EXT_SSE42 |
-             CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_FMA |
-             CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3,
+            CPUID_EXT_AES | CPUID_EXT_POPCNT | CPUID_EXT_SSE42 |
+            CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_FMA |
+            CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3,
         .features[FEAT_8000_0001_EDX] =
             CPUID_EXT2_LM | CPUID_EXT2_RDTSCP |
-             CPUID_EXT2_PDPE1GB | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
-             CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
-             CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
-             CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
-             CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
-             CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
+            CPUID_EXT2_PDPE1GB | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
+            CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
+            CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
+            CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
+            CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
+            CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
         .features[FEAT_8000_0001_ECX] =
             CPUID_EXT3_TBM | CPUID_EXT3_FMA4 | CPUID_EXT3_XOP |
-             CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
-             CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
-             CPUID_EXT3_LAHF_LM,
+            CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
+            CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
+            CPUID_EXT3_LAHF_LM,
         .xlevel = 0x8000001A,
         .model_id = "AMD Opteron 63xx class CPU",
     },
-- 
1.8.4.5

[Qemu-devel] [PULL 19/19] target-i386: Broadwell CPU model

[Andreas Färber]

From: Eduardo Habkost <ehabkost@redhat.com>

This adds a new CPU model named "Broadwell". It has all the features
from Haswell, plus PREFETCHW, RDSEED, ADX, SMAP.

PREFETCHW was already supported as "3dnowprefetch".

RDSEED, ADX was added on Linux v3.15-rc1.

SMAP was added on Linux v3.15-rc2.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Wang, Yong Y <yong.y.wang@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Dugger, Donald D <donald.d.dugger@intel.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 9c386b0..45c662d 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1042,6 +1042,40 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .model_id = "Intel Core Processor (Haswell)",
     },
     {
+        .name = "Broadwell",
+        .level = 0xd,
+        .vendor = CPUID_VENDOR_INTEL,
+        .family = 6,
+        .model = 61,
+        .stepping = 2,
+        .features[FEAT_1_EDX] =
+            CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
+            CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
+            CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
+            CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
+            CPUID_DE | CPUID_FP87,
+        .features[FEAT_1_ECX] =
+            CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
+            CPUID_EXT_POPCNT | CPUID_EXT_X2APIC | CPUID_EXT_SSE42 |
+            CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
+            CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3 |
+            CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_FMA | CPUID_EXT_MOVBE |
+            CPUID_EXT_PCID,
+        .features[FEAT_8000_0001_EDX] =
+            CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_NX |
+            CPUID_EXT2_SYSCALL,
+        .features[FEAT_8000_0001_ECX] =
+            CPUID_EXT3_LAHF_LM | CPUID_EXT3_3DNOWPREFETCH,
+        .features[FEAT_7_0_EBX] =
+            CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_BMI1 |
+            CPUID_7_0_EBX_HLE | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_SMEP |
+            CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID |
+            CPUID_7_0_EBX_RTM | CPUID_7_0_EBX_RDSEED | CPUID_7_0_EBX_ADX |
+            CPUID_7_0_EBX_SMAP,
+        .xlevel = 0x8000000A,
+        .model_id = "Intel Core Processor (Broadwell)",
+    },
+    {
         .name = "Opteron_G1",
         .level = 5,
         .vendor = CPUID_VENDOR_AMD,
-- 
1.8.4.5

Re: [Qemu-devel] [PULL 00/19] QOM CPUState patch queue 2014-06-26

[Peter Maydell]

On 25 June 2014 23:12, Andreas Färber <afaerber@suse.de> wrote:
> Hello Peter,
>
> This is my long delayed QOM CPU patch queue. Please pull.
>
> Regards,
> Andreas
>
> Cc: Peter Maydell <peter.maydell@linaro.org>
> Cc: Anthony Liguori <anthony@codemonkey.ws>
>
> Cc: Eduardo Habkost <ehabkost@redhat.com>
> Cc: Marcelo Tosatti <mtosatti@redhat.com>
>
> The following changes since commit 2b5b7ae917e8db48431631b1c5d909fa46c223a6:
>
>   Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-06-24' into staging (2014-06-24 17:14:57 +0100)
>
> are available in the git repository at:
>
>
>   git://github.com/afaerber/qemu-cpu.git tags/qom-cpu-for-2.1
>
> for you to fetch changes up to ece01354073f8e02db0205ea7522f3dbf589c9aa:
>
>   target-i386: Broadwell CPU model (2014-06-25 23:54:57 +0200)

Applied, thanks.

-- PMM

Re: [Qemu-devel] [PULL 17/19] target-i386: Support "invariant tsc" flag

[chenliang (T)]

Hi,
We found that value of host cpus tsc are same to echo other when host has invariant tsc flag.
But it is not in vm. The problem is that offset of vcpus tsc are not equal. The offset is set when
vcpu is created. Is it ok to set same offset? And is it reasonable?

Best regards
Chen Liang


From: Marcelo Tosatti <mtosatti@redhat.com>

Expose "Invariant TSC" flag, if KVM is enabled. From Intel documentation:

17.13.1 Invariant TSC The time stamp counter in newer processors may support an enhancement, referred to as invariant TSC. Processor’s support for invariant TSC is indicated by CPUID.80000007H:EDX[8].
The invariant TSC will run at a constant rate in all ACPI P-, C-.
and T-states. This is the architectural behavior moving forward. On processors with invariant TSC support, the OS may use the TSC for wall clock timer services (instead of ACPI or HPET timers). TSC reads are much more efficient and do not incur the overhead associated with a ring transition or access to a platform resource.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
[ehabkost: redo feature filtering to use .tcg_features]
[ehabkost: add CPUID_APM_INVTSC macro, add it to .unmigratable_flags]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

Re: [Qemu-devel] [PULL 17/19] target-i386: Support "invariant tsc" flag

[Marcelo Tosatti]

Chen Liang,

On Fri, Aug 08, 2014 at 07:07:59AM +0000, chenliang (T) wrote:
> Hi,
> We found that value of host cpus tsc are same to echo other when host has invariant tsc flag.

What you mean exactly?

Do you have a test program?

> But it is not in vm. The problem is that offset of vcpus tsc are not equal. The offset is set when
> vcpu is created. Is it ok to set same offset? And is it reasonable?
> 
> Best regards
> Chen Liang


The code at kvm_write_tsc(), in the kernel (arch/x86/kvm/x86.c), should 
adjust the vcpu tsc offsets properly resulting in cross SMP TSCs being
equal in the VM.