mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2024-11-24 11:23:43 +08:00
Code Issues Packages Projects Releases Wiki Activity

target-i386: Loop-based copying and setting/unsetting of feature words

Browse Source 
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>
This commit is contained in:
Eduardo Habkost 2014-04-30 13:48:37 -03:00 committed by Andreas Färber
parent 621626ce7d
commit e1c224b4eb
1 changed files with 10 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
target-i386/cpu.c
View File

@ -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()) {