[PATCH v2 1/2] KVM: selftests: Assert that XSAVE supports XTILE in amx_test

Aaron Lewis
2022-12-30T01:36:59Z

The check in amx_test that ensures that XSAVE supports XTILE, doesn't
actually check anything. It simply returns a bool which the test does
nothing with.

Assert that XSAVE supports XTILE.

Fixes: 5dc19f1c7dd3 ("KVM: selftests: Convert AMX test to use X86_PROPRETY_XXX")
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
---
tools/testing/selftests/kvm/x86_64/amx_test.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86_64/amx_test.c b/tools/testing/selftests/kvm/x86_64/amx_test.c
index bd72c6eb3b670..2f555f5c93e99 100644
--- a/tools/testing/selftests/kvm/x86_64/amx_test.c
+++ b/tools/testing/selftests/kvm/x86_64/amx_test.c
@@ -119,9 +119,9 @@ static inline void check_cpuid_xsave(void)
GUEST_ASSERT(this_cpu_has(X86_FEATURE_OSXSAVE));
}

-static bool check_xsave_supports_xtile(void)
+static inline void check_xsave_supports_xtile(void)
{
- return __xgetbv(0) & XFEATURE_MASK_XTILE;
+ GUEST_ASSERT(__xgetbv(0) & XFEATURE_MASK_XTILE);
}

static void check_xtile_info(void)
--
2.39.0.314.g84b9a713c41-goog