From: Sean Christopherson Date: Wed, 29 Nov 2023 22:49:13 +0000 (-0800) Subject: KVM: selftests: Fix MWAIT error message when guest assertion fails X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1af3bf2befc07c7198100949dd1bece02a7dbded;p=linux.git KVM: selftests: Fix MWAIT error message when guest assertion fails Print out the test and vector as intended when a guest assert fails an assertion regarding MONITOR/MWAIT faulting. Unfortunately, the guest printf support doesn't detect such issues at compile-time, so the bug manifests as a confusing error message, e.g. in the most confusing case, the test complains that it got vector "0" instead of expected vector "0". Fixes: 0f52e4aaa614 ("KVM: selftests: Convert the MONITOR/MWAIT test to use printf guest asserts") Reviewed-by: Maxim Levitsky Link: https://lore.kernel.org/r/20231107182159.404770-1-seanjc@google.com Link: https://lore.kernel.org/r/20231129224916.532431-2-seanjc@google.com Signed-off-by: Sean Christopherson --- diff --git a/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c b/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c index 80aa3d8b18f80..853802641e1ea 100644 --- a/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c +++ b/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c @@ -27,10 +27,12 @@ do { \ \ if (fault_wanted) \ __GUEST_ASSERT((vector) == UD_VECTOR, \ - "Expected #UD on " insn " for testcase '0x%x', got '0x%x'", vector); \ + "Expected #UD on " insn " for testcase '0x%x', got '0x%x'", \ + testcase, vector); \ else \ __GUEST_ASSERT(!(vector), \ - "Expected success on " insn " for testcase '0x%x', got '0x%x'", vector); \ + "Expected success on " insn " for testcase '0x%x', got '0x%x'", \ + testcase, vector); \ } while (0) static void guest_monitor_wait(int testcase)