Add a sanity check in get_cpuid_entry() to provide a friendlier error than
a segfault when a test developer tries to use a vCPU CPUID helper on a
barebones vCPU.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
tools/testing/selftests/kvm/lib/x86_64/processor.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index c664e446136b..f0f3434d767e 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -1141,6 +1141,8 @@ const struct kvm_cpuid_entry2 *get_cpuid_entry(const struct kvm_cpuid2 *cpuid,
{
int i;
+ TEST_ASSERT(cpuid, "Must do vcpu_init_cpuid() first (or equivalent)");
+
for (i = 0; i < cpuid->nent; i++) {
if (cpuid->entries[i].function == function &&
cpuid->entries[i].index == index)
--
2.45.0.215.g3402c0e53f-goog
