On Thu, May 02, 2013 at 01:03:01AM +0200, Andreas Färber wrote:
Am 22.04.2013 21:00, schrieb Eduardo Habkost:
This replaces the feature-bit fields on both X86CPU and x86_def_t structs with an array.
With this, we will be able to simplify code that simply does the same operation on all feature words (e.g. kvm_check_features_against_host(), filter_features_for_kvm(), add_flagname_to_bitmaps(), CPU feature-bit property lookup/registration, and the proposed "feature-words" property)
The following field replacements were made on X86CPU and x86_def_t:
(cpuid_)features -> features[FEAT_1_EDX] (cpuid_)ext_features -> features[FEAT_1_ECX] (cpuid_)ext2_features -> features[FEAT_8000_0001_EDX] (cpuid_)ext3_features -> features[FEAT_8000_0001_ECX] (cpuid_)ext4_features -> features[FEAT_C000_0001_EDX] (cpuid_)kvm_features -> features[FEAT_KVM] (cpuid_)svm_features -> features[FEAT_SVM] (cpuid_)7_0_ebx_features -> features[FEAT_7_0_EBX]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-By: Igor Mammedov <imammedo@redhat.com> [...] diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 73ae2ef..110ef98 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c [...] @@ -1490,22 +1485,22 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error **errp) } featurestr = strtok(NULL, ","); } - env->cpuid_features |= plus_features[FEAT_1_EDX]; - env->cpuid_ext_features |= plus_features[FEAT_1_ECX]; - env->cpuid_ext2_features |= plus_features[FEAT_8000_0001_EDX]; - env->cpuid_ext3_features |= plus_features[FEAT_8000_0001_ECX]; - env->cpuid_ext4_features |= plus_features[FEAT_C000_0001_EDX]; - env->cpuid_kvm_features |= plus_features[FEAT_KVM]; - env->cpuid_svm_features |= plus_features[FEAT_SVM]; - env->cpuid_7_0_ebx_features |= plus_features[FEAT_7_0_EBX]; - env->cpuid_features &= ~minus_features[FEAT_1_EDX]; - env->cpuid_ext_features &= ~minus_features[FEAT_1_ECX]; - env->cpuid_ext2_features &= ~minus_features[FEAT_8000_0001_EDX]; - env->cpuid_ext3_features &= ~minus_features[FEAT_8000_0001_ECX]; - env->cpuid_ext4_features &= ~minus_features[FEAT_C000_0001_EDX]; - env->cpuid_kvm_features &= ~minus_features[FEAT_KVM]; - env->cpuid_svm_features &= ~minus_features[FEAT_SVM]; - env->cpuid_7_0_ebx_features &= ~minus_features[FEAT_7_0_EBX]; + 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];
out: return;
Can this be done in a loop as a follow-up?
Yes, that was exactly the plan. :-) But it's something to be done after 1.5, I guess? -- Eduardo