From patchwork Tue Oct 8 04:46:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 11178799 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 67DCF1709 for ; Tue, 8 Oct 2019 04:46:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4688A206C2 for ; Tue, 8 Oct 2019 04:46:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729647AbfJHEqT (ORCPT ); Tue, 8 Oct 2019 00:46:19 -0400 Received: from mga11.intel.com ([192.55.52.93]:8177 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729285AbfJHEqS (ORCPT ); Tue, 8 Oct 2019 00:46:18 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Oct 2019 21:46:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,269,1566889200"; d="scan'208";a="206566530" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.41]) by fmsmga001.fm.intel.com with ESMTP; 07 Oct 2019 21:46:18 -0700 From: Sean Christopherson To: Jarkko Sakkinen Cc: linux-sgx@vger.kernel.org Subject: [PATCH for_v23 14/16] selftests/x86/sgx: Add test of vDSO with basic exit handler Date: Mon, 7 Oct 2019 21:46:11 -0700 Message-Id: <20191008044613.12350-15-sean.j.christopherson@intel.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191008044613.12350-1-sean.j.christopherson@intel.com> References: <20191008044613.12350-1-sean.j.christopherson@intel.com> MIME-Version: 1.0 Sender: linux-sgx-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org Add a test to verify that nothing explodes when using an exit handler to control the flow of the vDSO. Suggested-by: Suggested-by: Cedric Xing Signed-off-by: Sean Christopherson --- tools/testing/selftests/x86/sgx/main.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/tools/testing/selftests/x86/sgx/main.c b/tools/testing/selftests/x86/sgx/main.c index 2676570493f2..ae1822b10c6f 100644 --- a/tools/testing/selftests/x86/sgx/main.c +++ b/tools/testing/selftests/x86/sgx/main.c @@ -329,6 +329,31 @@ static void test_vdso_no_exit_handler(struct sgx_secs *secs) ASSERT_EQ(exception.leaf, ENCLU_EENTER); } +static int basic_exit_handler(long rdi, long rsi, long rdx, int ret, + long r8, long r9, void *tcs, long ursp, + struct sgx_enclave_exception *e) +{ + ASSERT_EQ(ret, 0); + return 0; +} + +/* + * Test the vDSO API, __vdso_sgx_enter_enclave(), with an exit handler. + */ +static void test_vdso_with_exit_handler(struct sgx_secs *secs) +{ + struct sgx_enclave_exception exception; + uint64_t result = 0; + long ret; + + memset(&exception, 0, sizeof(exception)); + + ret = sgx_call((void *)&MAGIC, &result, 0, 0, 0, 0, (void *)secs->base, + &exception, basic_exit_handler); + ASSERT_EQ(ret, 0); + ASSERT_EQ(result, MAGIC); +} + int main(int argc, char *argv[], char *envp[]) { struct sgx_sigstruct sigstruct; @@ -356,6 +381,7 @@ int main(int argc, char *argv[], char *envp[]) encl_build(&secs, bin, bin_size, &sigstruct); test_vdso_no_exit_handler(&secs); + test_vdso_with_exit_handler(&secs); printf("All tests passed!\n"); exit(0);