diff options
Diffstat (limited to 'tools/testing/selftests/kvm/x86_64/amx_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/amx_test.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/amx_test.c b/tools/testing/selftests/kvm/x86_64/amx_test.c index 21de6ae42086..bd72c6eb3b67 100644 --- a/tools/testing/selftests/kvm/x86_64/amx_test.c +++ b/tools/testing/selftests/kvm/x86_64/amx_test.c @@ -249,16 +249,21 @@ int main(int argc, char *argv[]) u32 amx_offset; int stage, ret; + /* + * Note, all off-by-default features must be enabled before anything + * caches KVM_GET_SUPPORTED_CPUID, e.g. before using kvm_cpu_has(). + */ vm_xsave_require_permission(XSTATE_XTILE_DATA_BIT); - /* Create VM */ - vm = vm_create_with_one_vcpu(&vcpu, guest_code); - + TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XFD)); TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XSAVE)); TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_AMX_TILE)); TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILECFG)); TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILEDATA)); + /* Create VM */ + vm = vm_create_with_one_vcpu(&vcpu, guest_code); + TEST_ASSERT(kvm_cpu_has_p(X86_PROPERTY_XSTATE_MAX_SIZE), "KVM should enumerate max XSAVE size when XSAVE is supported"); xsave_restore_size = kvm_cpu_property(X86_PROPERTY_XSTATE_MAX_SIZE); |