diff options
Diffstat (limited to 'tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c index d59f3eb67c8f..5827b9bae468 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c @@ -244,6 +244,22 @@ void test_vmx_nested_state(struct kvm_vm *vm) free(state); } +void disable_vmx(struct kvm_vm *vm) +{ + struct kvm_cpuid2 *cpuid = kvm_get_supported_cpuid(); + int i; + + for (i = 0; i < cpuid->nent; ++i) + if (cpuid->entries[i].function == 1 && + cpuid->entries[i].index == 0) + break; + TEST_ASSERT(i != cpuid->nent, "CPUID function 1 not found"); + + cpuid->entries[i].ecx &= ~CPUID_VMX; + vcpu_set_cpuid(vm, VCPU_ID, cpuid); + cpuid->entries[i].ecx |= CPUID_VMX; +} + int main(int argc, char *argv[]) { struct kvm_vm *vm; @@ -264,6 +280,11 @@ int main(int argc, char *argv[]) vm = vm_create_default(VCPU_ID, 0, 0); + /* + * First run tests with VMX disabled to check error handling. + */ + disable_vmx(vm); + /* Passing a NULL kvm_nested_state causes a EFAULT. */ test_nested_state_expect_efault(vm, NULL); |