From ab0e9c4b91ca902b1cae593b3dec9c4c7a724f9f Mon Sep 17 00:00:00 2001 From: "Shuah Khan (Samsung OSG)" Date: Thu, 3 May 2018 19:53:03 -0600 Subject: [PATCH] selftests: kvm: return Kselftest Skip code for skipped tests When kvm test is skipped because of unmet dependencies and/or unsupported configuration, it exits with error which is treated as a fail by the Kselftest framework. This leads to false negative result even when the test could not be run. Change it to return kselftest skip code when a test gets skipped to clearly report that the test could not be run. Change it to use ksft_exit_skip() when the test is skipped. In addition, refine test_assert() message to include strerror() string and add explicit check for EACCES to cleary identify when test doesn't run when access is denied to resources required e.g: open /dev/kvm failed, rc: -1 errno: 13 Signed-off-by: Shuah Khan (Samsung OSG) Acked-by: Paolo Bonzini Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/kvm/lib/assert.c | 9 +++++++-- tools/testing/selftests/kvm/vmx_tsc_adjust_test.c | 2 ++ 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/lib/assert.c b/tools/testing/selftests/kvm/lib/assert.c index c9f5b7d4ce38..cd01144d27c8 100644 --- a/tools/testing/selftests/kvm/lib/assert.c +++ b/tools/testing/selftests/kvm/lib/assert.c @@ -13,6 +13,8 @@ #include #include +#include "../../kselftest.h" + /* Dumps the current stack trace to stderr. */ static void __attribute__((noinline)) test_dump_stack(void); static void test_dump_stack(void) @@ -70,8 +72,9 @@ test_assert(bool exp, const char *exp_str, fprintf(stderr, "==== Test Assertion Failure ====\n" " %s:%u: %s\n" - " pid=%d tid=%d\n", - file, line, exp_str, getpid(), gettid()); + " pid=%d tid=%d - %s\n", + file, line, exp_str, getpid(), gettid(), + strerror(errno)); test_dump_stack(); if (fmt) { fputs(" ", stderr); @@ -80,6 +83,8 @@ test_assert(bool exp, const char *exp_str, } va_end(ap); + if (errno == EACCES) + ksft_exit_skip("Access denied - Exiting.\n"); exit(254); } diff --git a/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c b/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c index aaa633263b2c..d7cb7944a42e 100644 --- a/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c +++ b/tools/testing/selftests/kvm/vmx_tsc_adjust_test.c @@ -28,6 +28,8 @@ #include #include +#include "../kselftest.h" + #ifndef MSR_IA32_TSC_ADJUST #define MSR_IA32_TSC_ADJUST 0x3b #endif -- 2.11.0