Patchwork [RFC,04/20] target-i386: filter out not TCG features if running without kvm at realize time

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Submitter Igor Mammedov
Date Aug. 10, 2012, 11:22 a.m.
Message ID <1344597756-2890-5-git-send-email-imammedo@redhat.com>
Download mbox | patch
Permalink /patch/176448/
State New
Headers show

Comments

Igor Mammedov - Aug. 10, 2012, 11:22 a.m.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 target-i386/cpu.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)
Eduardo Habkost - Aug. 10, 2012, 1:48 p.m.
On Fri, Aug 10, 2012 at 01:22:20PM +0200, Igor Mammedov wrote:
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>

Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>


> ---
>  target-i386/cpu.c | 24 +++++++++++++-----------
>  1 file changed, 13 insertions(+), 11 deletions(-)
> 
> diff --git a/target-i386/cpu.c b/target-i386/cpu.c
> index 17e98e1..d0dec63 100644
> --- a/target-i386/cpu.c
> +++ b/target-i386/cpu.c
> @@ -1171,17 +1171,6 @@ int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
>      env->cpuid_xlevel2 = def->xlevel2;
>      object_property_set_int(OBJECT(cpu), (int64_t)def->tsc_khz * 1000,
>                              "tsc-frequency", &error);
> -    if (!kvm_enabled()) {
> -        env->cpuid_features &= TCG_FEATURES;
> -        env->cpuid_ext_features &= TCG_EXT_FEATURES;
> -        env->cpuid_ext2_features &= (TCG_EXT2_FEATURES
> -#ifdef TARGET_X86_64
> -            | CPUID_EXT2_SYSCALL | CPUID_EXT2_LM
> -#endif
> -            );
> -        env->cpuid_ext3_features &= TCG_EXT3_FEATURES;
> -        env->cpuid_svm_features &= TCG_SVM_FEATURES;
> -    }
>      object_property_set_str(OBJECT(cpu), def->model_id, "model-id", &error);
>  
>  out:
> @@ -1745,6 +1734,19 @@ static void mce_init(X86CPU *cpu)
>  void x86_cpu_realize(Object *obj, Error **errp)
>  {
>      X86CPU *cpu = X86_CPU(obj);
> +    CPUX86State *env = &cpu->env;
> +
> +    if (!kvm_enabled()) {
> +        env->cpuid_features &= TCG_FEATURES;
> +        env->cpuid_ext_features &= TCG_EXT_FEATURES;
> +        env->cpuid_ext2_features &= (TCG_EXT2_FEATURES
> +#ifdef TARGET_X86_64
> +            | CPUID_EXT2_SYSCALL | CPUID_EXT2_LM
> +#endif
> +            );
> +        env->cpuid_ext3_features &= TCG_EXT3_FEATURES;
> +        env->cpuid_svm_features &= TCG_SVM_FEATURES;
> +    }
>  
>  #ifndef CONFIG_USER_ONLY
>      qemu_register_reset(x86_cpu_machine_reset_cb, cpu);
> -- 
> 1.7.11.2
>

Patch

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 17e98e1..d0dec63 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1171,17 +1171,6 @@  int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
     env->cpuid_xlevel2 = def->xlevel2;
     object_property_set_int(OBJECT(cpu), (int64_t)def->tsc_khz * 1000,
                             "tsc-frequency", &error);
-    if (!kvm_enabled()) {
-        env->cpuid_features &= TCG_FEATURES;
-        env->cpuid_ext_features &= TCG_EXT_FEATURES;
-        env->cpuid_ext2_features &= (TCG_EXT2_FEATURES
-#ifdef TARGET_X86_64
-            | CPUID_EXT2_SYSCALL | CPUID_EXT2_LM
-#endif
-            );
-        env->cpuid_ext3_features &= TCG_EXT3_FEATURES;
-        env->cpuid_svm_features &= TCG_SVM_FEATURES;
-    }
     object_property_set_str(OBJECT(cpu), def->model_id, "model-id", &error);
 
 out:
@@ -1745,6 +1734,19 @@  static void mce_init(X86CPU *cpu)
 void x86_cpu_realize(Object *obj, Error **errp)
 {
     X86CPU *cpu = X86_CPU(obj);
+    CPUX86State *env = &cpu->env;
+
+    if (!kvm_enabled()) {
+        env->cpuid_features &= TCG_FEATURES;
+        env->cpuid_ext_features &= TCG_EXT_FEATURES;
+        env->cpuid_ext2_features &= (TCG_EXT2_FEATURES
+#ifdef TARGET_X86_64
+            | CPUID_EXT2_SYSCALL | CPUID_EXT2_LM
+#endif
+            );
+        env->cpuid_ext3_features &= TCG_EXT3_FEATURES;
+        env->cpuid_svm_features &= TCG_SVM_FEATURES;
+    }
 
 #ifndef CONFIG_USER_ONLY
     qemu_register_reset(x86_cpu_machine_reset_cb, cpu);