Patchwork [01/20] target-i386: filter out unsupported features at realize time

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Submitter Igor Mammedov
Date Dec. 28, 2012, 8:01 p.m.
Message ID <1356724895-24118-2-git-send-email-imammedo@redhat.com>
Download mbox | patch
Permalink /patch/208561/
State New
Headers show

Comments

Igor Mammedov - Dec. 28, 2012, 8:01 p.m.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 target-i386/cpu.c |   31 ++++++++++++++++---------------
 1 files changed, 16 insertions(+), 15 deletions(-)
Eduardo Habkost - Dec. 28, 2012, 8:49 p.m.
On Fri, Dec 28, 2012 at 09:01:16PM +0100, Igor Mammedov wrote:
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

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

> ---
>  target-i386/cpu.c |   31 ++++++++++++++++---------------
>  1 files changed, 16 insertions(+), 15 deletions(-)
> 
> diff --git a/target-i386/cpu.c b/target-i386/cpu.c
> index 7be3ad8..63aae86 100644
> --- a/target-i386/cpu.c
> +++ b/target-i386/cpu.c
> @@ -1549,21 +1549,6 @@ int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
>          env->cpuid_ext2_features |= (def->features & CPUID_EXT2_AMD_ALIASES);
>      }
>  
> -    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;
> -    } else {
> -#ifdef CONFIG_KVM
> -        filter_features_for_kvm(cpu);
> -#endif
> -    }
>      object_property_set_str(OBJECT(cpu), def->model_id, "model-id", &error);
>      if (error) {
>          fprintf(stderr, "%s\n", error_get_pretty(error));
> @@ -2077,6 +2062,22 @@ void x86_cpu_realize(Object *obj, Error **errp)
>          env->cpuid_level = 7;
>      }
>  
> +    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;
> +    } else {
> +#ifdef CONFIG_KVM
> +        filter_features_for_kvm(cpu);
> +#endif
> +    }
> +
>  #ifndef CONFIG_USER_ONLY
>      qemu_register_reset(x86_cpu_machine_reset_cb, cpu);
>  
> -- 
> 1.7.1
>

Patch

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 7be3ad8..63aae86 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1549,21 +1549,6 @@  int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
         env->cpuid_ext2_features |= (def->features & CPUID_EXT2_AMD_ALIASES);
     }
 
-    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;
-    } else {
-#ifdef CONFIG_KVM
-        filter_features_for_kvm(cpu);
-#endif
-    }
     object_property_set_str(OBJECT(cpu), def->model_id, "model-id", &error);
     if (error) {
         fprintf(stderr, "%s\n", error_get_pretty(error));
@@ -2077,6 +2062,22 @@  void x86_cpu_realize(Object *obj, Error **errp)
         env->cpuid_level = 7;
     }
 
+    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;
+    } else {
+#ifdef CONFIG_KVM
+        filter_features_for_kvm(cpu);
+#endif
+    }
+
 #ifndef CONFIG_USER_ONLY
     qemu_register_reset(x86_cpu_machine_reset_cb, cpu);