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target-i386: Make kvm_default_features an array

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We will later make the KVM-specific code affect other feature words,
too.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Eduardo Habkost 2014-02-19 11:58:10 -03:00 • committed by Andreas Färber
parent 74f54bc4ba
commit 5fcca9ff3b
1 changed files with 13 additions and 4 deletions
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17
target-i386/cpu.c
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@ -358,17 +358,22 @@ typedef struct model_features_t {
FeatureWord feat_word; FeatureWord feat_word;
} model_features_t; } model_features_t;
static uint32_t kvm_default_features = (1 << KVM_FEATURE_CLOCKSOURCE) | /* KVM-specific features that are automatically added to all CPU models
* when KVM is enabled.
*/
static uint32_t kvm_default_features[FEATURE_WORDS] = {
[FEAT_KVM] = (1 << KVM_FEATURE_CLOCKSOURCE) |
(1 << KVM_FEATURE_NOP_IO_DELAY) | (1 << KVM_FEATURE_NOP_IO_DELAY) |
(1 << KVM_FEATURE_CLOCKSOURCE2) | (1 << KVM_FEATURE_CLOCKSOURCE2) |
(1 << KVM_FEATURE_ASYNC_PF) | (1 << KVM_FEATURE_ASYNC_PF) |
(1 << KVM_FEATURE_STEAL_TIME) | (1 << KVM_FEATURE_STEAL_TIME) |
(1 << KVM_FEATURE_PV_EOI) | (1 << KVM_FEATURE_PV_EOI) |
(1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT); (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT),
};
void disable_kvm_pv_eoi(void) void disable_kvm_pv_eoi(void)
{ {
kvm_default_features &= ~(1UL << KVM_FEATURE_PV_EOI); kvm_default_features[FEAT_KVM] &= ~(1UL << KVM_FEATURE_PV_EOI);
} }
void host_cpuid(uint32_t function, uint32_t count, void host_cpuid(uint32_t function, uint32_t count,
@ -1853,8 +1858,12 @@ static void x86_cpu_load_def(X86CPU *cpu, const char *name, Error **errp)
/* Special cases not set in the X86CPUDefinition structs: */ /* Special cases not set in the X86CPUDefinition structs: */
if (kvm_enabled()) { if (kvm_enabled()) {
env->features[FEAT_KVM] |= kvm_default_features; FeatureWord w;
for (w = 0; w < FEATURE_WORDS; w++) {
env->features[w] |= kvm_default_features[w];
} }
}
env->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR; env->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR;
/* sysenter isn't supported in compatibility mode on AMD, /* sysenter isn't supported in compatibility mode on AMD,