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target/i386: Construct CPUID 2 as stateful iff times > 1

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When times == 1, the CPUID leaf 2 is not stateful.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20240814075431.339209-6-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Xiaoyao Li 2024-08-14 03:54:27 -04:00 committed by Paolo Bonzini
parent 7dddc3bb87
commit 5ab639141b
1 changed files with 4 additions and 2 deletions
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6
target/i386/kvm/kvm.c
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@ -1838,10 +1838,12 @@ static uint32_t kvm_x86_build_cpuid(CPUX86State *env,
int times; int times;
c->function = i; c->function = i;
c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC |
KVM_CPUID_FLAG_STATE_READ_NEXT;
cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
times = c->eax & 0xff; times = c->eax & 0xff;
if (times > 1) {
c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC |
KVM_CPUID_FLAG_STATE_READ_NEXT;
}
for (j = 1; j < times; ++j) { for (j = 1; j < times; ++j) {
if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { if (cpuid_i == KVM_MAX_CPUID_ENTRIES) {