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KVM: selftests: Use vcpu_clear_cpuid_feature() to clear x2APIC

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Add X86_FEATURE_X2APIC and use vcpu_clear_cpuid_feature() to clear x2APIC
support in the xAPIC state test.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220614200707.3315957-30-seanjc@google.com
This commit is contained in:
Sean Christopherson 2022-06-14 20:06:54 +00:00
parent 4ee315231e
commit 7ed5a54e82
2 changed files with 2 additions and 9 deletions
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1
tools/testing/selftests/kvm/include/x86_64/processor.h
View File

@ -83,6 +83,7 @@ struct kvm_x86_cpu_feature {
#define X86_FEATURE_SMX KVM_X86_CPU_FEATURE(0x1, 0, ECX, 6)
#define X86_FEATURE_PDCM KVM_X86_CPU_FEATURE(0x1, 0, ECX, 15)
#define X86_FEATURE_PCID KVM_X86_CPU_FEATURE(0x1, 0, ECX, 17)
#define X86_FEATURE_X2APIC KVM_X86_CPU_FEATURE(0x1, 0, ECX, 21)
#define X86_FEATURE_MOVBE KVM_X86_CPU_FEATURE(0x1, 0, ECX, 22)
#define X86_FEATURE_TSC_DEADLINE_TIMER KVM_X86_CPU_FEATURE(0x1, 0, ECX, 24)
#define X86_FEATURE_XSAVE KVM_X86_CPU_FEATURE(0x1, 0, ECX, 26)

10
tools/testing/selftests/kvm/x86_64/xapic_state_test.c
View File

@ -136,9 +136,7 @@ int main(int argc, char *argv[])
.vcpu = NULL,
.is_x2apic = true,
};
struct kvm_cpuid2 *cpuid;
struct kvm_vm *vm;
int i;
vm = vm_create_with_one_vcpu(&x.vcpu, x2apic_guest_code);
test_icr(&x);
@ -152,13 +150,7 @@ int main(int argc, char *argv[])
vm = vm_create_with_one_vcpu(&x.vcpu, xapic_guest_code);
x.is_x2apic = false;
cpuid = x.vcpu->cpuid;
for (i = 0; i < cpuid->nent; i++) {
if (cpuid->entries[i].function == 1)
break;
}
cpuid->entries[i].ecx &= ~BIT(21);
vcpu_set_cpuid(x.vcpu);
vcpu_clear_cpuid_feature(x.vcpu, X86_FEATURE_X2APIC);
virt_pg_map(vm, APIC_DEFAULT_GPA, APIC_DEFAULT_GPA);
test_icr(&x);