From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933163AbeEHQuL (ORCPT ); Tue, 8 May 2018 12:50:11 -0400 Received: from mail-wm0-f65.google.com ([74.125.82.65]:55817 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933143AbeEHQuH (ORCPT ); Tue, 8 May 2018 12:50:07 -0400 X-Google-Smtp-Source: AB8JxZrrSDnwLgMmzzzQQ/coCxdDcs0DeJ9Hw/l3oG9FWt51SH2/PqV7h1eLZXCK2JuBwnuSeYJaxQ== Subject: Re: [[PATCH v2 14/24]] selftests: kvm: return Kselftest Skip code for skipped tests To: "Shuah Khan (Samsung OSG)" , hofsass@google.com Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org References: <20180507210821.23910-1-shuah@kernel.org> From: Paolo Bonzini Openpgp: preference=signencrypt Autocrypt: addr=pbonzini@redhat.com; keydata= xsEhBFRCcBIBDqDGsz4K0zZun3jh+U6Z9wNGLKQ0kSFyjN38gMqU1SfP+TUNQepFHb/Gc0E2 CxXPkIBTvYY+ZPkoTh5xF9oS1jqI8iRLzouzF8yXs3QjQIZ2SfuCxSVwlV65jotcjD2FTN04 hVopm9llFijNZpVIOGUTqzM4U55sdsCcZUluWM6x4HSOdw5F5Utxfp1wOjD/v92Lrax0hjiX DResHSt48q+8FrZzY+AUbkUS+Jm34qjswdrgsC5uxeVcLkBgWLmov2kMaMROT0YmFY6A3m1S P/kXmHDXxhe23gKb3dgwxUTpENDBGcfEzrzilWueOeUWiOcWuFOed/C3SyijBx3Av/lbCsHU Vx6pMycNTdzU1BuAroB+Y3mNEuW56Yd44jlInzG2UOwt9XjjdKkJZ1g0P9dwptwLEgTEd3Fo UdhAQyRXGYO8oROiuh+RZ1lXp6AQ4ZjoyH8WLfTLf5g1EKCTc4C1sy1vQSdzIRu3rBIjAvnC tGZADei1IExLqB3uzXKzZ1BZ+Z8hnt2og9hb7H0y8diYfEk2w3R7wEr+Ehk5NQsT2MPI2QBd wEv1/Aj1DgUHZAHzG1QN9S8wNWQ6K9DqHZTBnI1hUlkp22zCSHK/6FwUCuYp1zcAEQEAAc0f UGFvbG8gQm9uemluaSA8Ym9uemluaUBnbnUub3JnPsLBTQQTAQIAIwUCVEJ7AwIbAwcLCQgH AwIBBhUIAgkKCwQWAgMBAh4BAheAAAoJEH4VEAzNNmmxNcwOniaZVLsuy1lW/ntYCA0Caz0i sHpmecK8aWlvL9wpQCk4GlOX9L1emyYXZPmzIYB0IRqmSzAlZxi+A2qm9XOxs5gJ2xqMEXX5 FMtUH3kpkWWJeLqe7z0EoQdUI4EG988uv/tdZyqjUn2XJE+K01x7r3MkUSFz/HZKZiCvYuze VlS0NTYdUt5jBXualvAwNKfxEkrxeHjxgdFHjYWhjflahY7TNRmuqPM/Lx7wAuyoDjlYNE40 Z+Kun4/KjMbjgpcF4Nf3PJQR8qXI6p3so2qsSn91tY7DFSJO6v2HwFJkC2jU95wxfNmTEUZc znXahYbVOwCDJRuPrE5GKFd/XJU9u5hNtr/uYipHij01WXal2cce1S5mn1/HuM1yo1u8xdHy IupCd57EWI948e8BlhpujUCU2tzOb2iYS0kpmJ9/oLVZrOcSZCcCl2P0AaCAsj59z2kwQS9D du0WxUs8waso0Qq6tDEHo8yLCOJDzSz4oojTtWe4zsulVnWV+wu70AioemAT8S6JOtlu60C5 dHgQUD1Tp+ReXpDKXmjbASJx4otvW0qah3o6JaqO79tbDqIvncu3tewwp6c85uZd48JnIOh3 utBAu684nJakbbvZUGikJfxd887ATQRUQnHuAQgAx4dxXO6/Zun0eVYOnr5GRl76+2UrAAem Vv9Yfn2PbDIbxXqLff7oyVJIkw4WdhQIIvvtu5zH24iYjmdfbg8iWpP7NqxUQRUZJEWbx2CR wkMHtOmzQiQ2tSLjKh/cHeyFH68xjeLcinR7jXMrHQK+UCEw6jqi1oeZzGvfmxarUmS0uRuf fAb589AJW50kkQK9VD/9QC2FJISSUDnRC0PawGSZDXhmvITJMdD4TjYrePYhSY4uuIV02v02 8TVAaYbIhxvDY0hUQE4r8ZbGRLn52bEzaIPgl1p/adKfeOUeMReg/CkyzQpmyB1TSk8lDMxQ zCYHXAzwnGi8WU9iuE1P0wARAQABwsEzBBgBAgAJBQJUQnHuAhsMAAoJEH4VEAzNNmmxp1EO oJy0uZggJm7gZKeJ7iUpeX4eqUtqelUw6gU2daz2hE/jsxsTbC/w5piHmk1H1VWDKEM4bQBT uiJ0bfo55SWsUNN+c9hhIX+Y8LEe22izK3w7mRpvGcg+/ZRG4DEMHLP6JVsv5GMpoYwYOmHn plOzCXHvmdlW0i6SrMsBDl9rw4AtIa6bRwWLim1lQ6EM3PWifPrWSUPrPcw4OLSwFk0CPqC4 HYv/7ZnASVkR5EERFF3+6iaaVi5OgBd81F1TCvCX2BEyIDRZLJNvX3TOd5FEN+lIrl26xecz 876SvcOb5SL5SKg9/rCBufdPSjojkGFWGziHiFaYhbuI2E+NfWLJtd+ZvWAAV+O0d8vFFSvr iy9enJ8kxJwhC0ECbSKFY+W1eTIhMD3aeAKY90drozWEyHhENf4l/V+Ja5vOnW+gCDQkGt2Y 1lJAPPSIqZKvHzGShdh8DduC0U3xYkfbGAUvbxeepjgzp0uEnBXfPTy09JGpgWbg0w91GyfT /ujKaGd4vxG2Ei+MMNDmS1SMx7wu0evvQ5kT9NPzyq8R2GIhVSiAd2jioGuTjX6AZCFv3ToO 53DliFMkVTecLptsXaesuUHgL9dKIfvpm+rNXRn9wAwGjk0X/A== Message-ID: Date: Tue, 8 May 2018 18:49:54 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180507210821.23910-1-shuah@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/05/2018 23:08, Shuah Khan (Samsung OSG) wrote: > 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) > --- > > Changes since v1: > - Don't do root check at the top of assert. > - Instead do check for EACCES. > > tools/testing/selftests/kvm/lib/assert.c | 9 +++++++-- > tools/testing/selftests/kvm/vmx_tsc_adjust_test.c | 4 +++- > 2 files changed, 10 insertions(+), 3 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 8f7f62093add..62fb73699eb6 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 > @@ -190,7 +192,7 @@ int main(int argc, char *argv[]) > > if (!(entry->ecx & CPUID_VMX)) { > printf("nested VMX not enabled, skipping test"); > - return 0; > + return KSFT_SKIP; > } > > vm = vm_create_default_vmx(VCPU_ID, (void *) l1_guest_code); > Acked-by: Paolo Bonzini