Similar to CPUID.0DH.0H this entry depends on the vCPU's XCR0 register
and IA32_XSS MSR. Since this test does not control for either before
assigning the vCPU's CPUID, these entries will not necessarily match
the supported CPUID exposed by KVM.
This fixes get_cpuid_test on Cascade Lake CPUs.
Signed-off-by: David Matlack <dmatlack@xxxxxxxxxx>
---
tools/testing/selftests/kvm/x86_64/get_cpuid_test.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/testing/selftests/kvm/x86_64/get_cpuid_test.c b/tools/testing/selftests/kvm/x86_64/get_cpuid_test.c
index 9b78e8889638..8c77537af5a1 100644
--- a/tools/testing/selftests/kvm/x86_64/get_cpuid_test.c
+++ b/tools/testing/selftests/kvm/x86_64/get_cpuid_test.c
@@ -19,7 +19,12 @@ struct {
u32 function;
u32 index;
} mangled_cpuids[] = {
+ /*
+ * These entries depend on the vCPU's XCR0 register and IA32_XSS MSR,
+ * which are not controlled for by this test.
+ */
{.function = 0xd, .index = 0},
+ {.function = 0xd, .index = 1},
};
static void test_guest_cpuids(struct kvm_cpuid2 *guest_cpuid)
--
2.31.1.751.gd2f1c929bd-goog
