From patchwork Mon Nov 15 18:35:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Reinette Chatre X-Patchwork-Id: 12620197 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 356C4C433FE for ; Mon, 15 Nov 2021 18:47:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 242DD6339B for ; Mon, 15 Nov 2021 18:47:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239982AbhKOSuI (ORCPT ); Mon, 15 Nov 2021 13:50:08 -0500 Received: from mga14.intel.com ([192.55.52.115]:7655 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242765AbhKOSp1 (ORCPT ); Mon, 15 Nov 2021 13:45:27 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10169"; a="233746838" X-IronPort-AV: E=Sophos;i="5.87,237,1631602800"; d="scan'208";a="233746838" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2021 10:35:38 -0800 X-IronPort-AV: E=Sophos;i="5.87,237,1631602800"; d="scan'208";a="454130659" Received: from rchatre-ws.ostc.intel.com ([10.54.69.144]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2021 10:35:37 -0800 From: Reinette Chatre To: jarkko@kernel.org, linux-sgx@vger.kernel.org, shuah@kernel.org, dave.hansen@linux.intel.com Cc: seanjc@google.com, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH V3 09/13] selftests/sgx: Provide per-op parameter structs for the test enclave Date: Mon, 15 Nov 2021 10:35:22 -0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org From: Jarkko Sakkinen To add more operations to the test enclave, the protocol needs to allow to have operations with varying parameters. Create a separate parameter struct for each existing operation, with the shared parameters in struct encl_op_header. Signed-off-by: Jarkko Sakkinen Acked-by: Dave Hansen [reinette: rebased to apply on top of oversubscription test series] Signed-off-by: Reinette Chatre --- Changes since V1: - Add signature from Dave. tools/testing/selftests/sgx/defines.h | 14 ++++- tools/testing/selftests/sgx/main.c | 68 +++++++++++++------------ tools/testing/selftests/sgx/test_encl.c | 33 +++++++----- 3 files changed, 69 insertions(+), 46 deletions(-) diff --git a/tools/testing/selftests/sgx/defines.h b/tools/testing/selftests/sgx/defines.h index f88562afcaa0..6ff95a766287 100644 --- a/tools/testing/selftests/sgx/defines.h +++ b/tools/testing/selftests/sgx/defines.h @@ -21,11 +21,21 @@ enum encl_op_type { ENCL_OP_PUT, ENCL_OP_GET, + ENCL_OP_MAX, }; -struct encl_op { +struct encl_op_header { uint64_t type; - uint64_t buffer; +}; + +struct encl_op_put { + struct encl_op_header header; + uint64_t value; +}; + +struct encl_op_get { + struct encl_op_header header; + uint64_t value; }; #endif /* DEFINES_H */ diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index ee8139a22a3c..3996c00486b6 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -220,27 +220,28 @@ FIXTURE_TEARDOWN(enclave) TEST_F(enclave, unclobbered_vdso) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata)); memset(&self->run, 0, sizeof(self->run)); self->run.tcs = self->encl.encl_base; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); } @@ -292,7 +293,8 @@ static unsigned long get_total_epc_mem(void) TEST_F(enclave, unclobbered_vdso_oversubscribed) { unsigned long total_mem; - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; total_mem = get_total_epc_mem(); ASSERT_NE(total_mem, 0); @@ -301,20 +303,20 @@ TEST_F(enclave, unclobbered_vdso_oversubscribed) memset(&self->run, 0, sizeof(self->run)); self->run.tcs = self->encl.encl_base; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); @@ -322,27 +324,28 @@ TEST_F(enclave, unclobbered_vdso_oversubscribed) TEST_F(enclave, clobbered_vdso) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata)); memset(&self->run, 0, sizeof(self->run)); self->run.tcs = self->encl.encl_base; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); } @@ -357,7 +360,8 @@ static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r TEST_F(enclave, clobbered_vdso_and_user_function) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata)); @@ -367,20 +371,20 @@ TEST_F(enclave, clobbered_vdso_and_user_function) self->run.user_handler = (__u64)test_handler; self->run.user_data = 0xdeadbeef; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); } diff --git a/tools/testing/selftests/sgx/test_encl.c b/tools/testing/selftests/sgx/test_encl.c index 734ea52f9924..f11eb8315704 100644 --- a/tools/testing/selftests/sgx/test_encl.c +++ b/tools/testing/selftests/sgx/test_encl.c @@ -16,20 +16,29 @@ static void *memcpy(void *dest, const void *src, size_t n) return dest; } -void encl_body(void *rdi, void *rsi) +static void do_encl_op_put(void *op) +{ + struct encl_op_put *op2 = op; + + memcpy(&encl_buffer[0], &op2->value, 8); +} + +static void do_encl_op_get(void *op) { - struct encl_op *op = (struct encl_op *)rdi; + struct encl_op_get *op2 = op; - switch (op->type) { - case ENCL_OP_PUT: - memcpy(&encl_buffer[0], &op->buffer, 8); - break; + memcpy(&op2->value, &encl_buffer[0], 8); +} + +void encl_body(void *rdi, void *rsi) +{ + const void (*encl_op_array[ENCL_OP_MAX])(void *) = { + do_encl_op_put, + do_encl_op_get, + }; - case ENCL_OP_GET: - memcpy(&op->buffer, &encl_buffer[0], 8); - break; + struct encl_op_header *op = (struct encl_op_header *)rdi; - default: - break; - } + if (op->type < ENCL_OP_MAX) + (*encl_op_array[op->type])(op); }