MSR_IA32_TSC_ADJUST may be supported by KVM on AMD machines, but it does
not show on AMD manual. Check CPUID to see if it supported before
running the relevant tests.
Signed-off-by: Nadav Amit <namit@xxxxxxxxxx>
---
x86/svm_tests.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/x86/svm_tests.c b/x86/svm_tests.c
index a2c993d..92cefaf 100644
--- a/x86/svm_tests.c
+++ b/x86/svm_tests.c
@@ -893,6 +893,11 @@ static bool npt_rw_l1mmio_check(struct svm_test *test)
#define TSC_OFFSET_VALUE (~0ull << 48)
static bool ok;
+static bool tsc_adjust_supported(void)
+{
+ return this_cpu_has(X86_FEATURE_TSC_ADJUST);
+}
+
static void tsc_adjust_prepare(struct svm_test *test)
{
default_prepare(test);
@@ -2010,7 +2015,7 @@ struct svm_test svm_tests[] = {
{ "npt_rw_l1mmio", npt_supported, npt_rw_l1mmio_prepare,
default_prepare_gif_clear, npt_rw_l1mmio_test,
default_finished, npt_rw_l1mmio_check },
- { "tsc_adjust", default_supported, tsc_adjust_prepare,
+ { "tsc_adjust", tsc_adjust_supported, tsc_adjust_prepare,
default_prepare_gif_clear, tsc_adjust_test,
default_finished, tsc_adjust_check },
{ "latency_run_exit", default_supported, latency_prepare,
--
2.25.1
