From patchwork Wed Jul 28 22:51:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 12407017 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62FBEC4338F for ; Wed, 28 Jul 2021 22:51:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 425D86103E for ; Wed, 28 Jul 2021 22:51:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232143AbhG1Wvq (ORCPT ); Wed, 28 Jul 2021 18:51:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:36866 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232073AbhG1Wvq (ORCPT ); Wed, 28 Jul 2021 18:51:46 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F3E376101B; Wed, 28 Jul 2021 22:51:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627512704; bh=HJCA56HhX64aO6/kYtMpnmi2Ouy6Lnw/ykKlCyXXl8s=; h=From:To:Cc:Subject:Date:From; b=Mui66WZbRkHlpIU0m0qaPITE0IBF1cVbMgOHGK/pW0imiwAYyFXnPPV4dDFBVbeL5 xbMYtdbbNLBv97V7bM4z5DeX8MQ66awcUsAJZiaxVo4z1dAz1dSI+/KLUQ4CsOVzIM L1AgfS1B9CU8FM1Vy5QLAGBfvM74E4Y3hIlHRK/XKkCnw5vsJ3n1adcMtTmgqWhYqk WjQ6E5jCs6uzcRPUXe48Y54w16fz1kA+tKjZT53alxskiDgQRYijP5CwlqBFITaD6o zL2q/BCV6oxZDxVHsnVhcLA7EQRc2gTjwpnEY5keor6UnSWpeShkrBrxn2pqtRZ0MB aNFNc019hV9uQ== From: Jarkko Sakkinen To: Shuah Khan Cc: linux-kselftest@vger.kernel.org, linux-sgx@vger.kernel.org, Reinette Chatre , Borislav Petkov , Jarkko Sakkinen , Dave Hansen Subject: [PATCH v2 0/4] Swap and fault all the pages of the test enclave binary Date: Thu, 29 Jul 2021 01:51:36 +0300 Message-Id: <20210728225140.248408-1-jarkko@kernel.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org Create a heap for the test enclave, which has the same size as all available Enclave Page Cache (EPC) pages in the system. This will guarantee that all test_encl.elf pages *and* SGX Enclave Control Structure (SECS) have been swapped out by the page reclaimer during the load time. Actually, this adds a bit more stress than that since part of the EPC gets reserved for the Version Array (VA) pages. For each test, the page fault handler gets triggered in two occasions: - When SGX_IOC_ENCLAVE_INIT is performed, SECS gets swapped in by the page fault handler. - During the execution, each page that is referenced gets swapped in by the page fault handler. Jarkko Sakkinen (3): x86/sgx: Add /sys/kernel/debug/x86/sgx_total_mem selftests/sgx: Assign source for each segment selftests/sgx: Trigger the reclaimer and #PF handler Tianjia Zhang (1): selftests/sgx: Fix calculations for sub-maximum field sizes Documentation/x86/sgx.rst | 6 +++ arch/x86/kernel/cpu/sgx/main.c | 10 ++++- tools/testing/selftests/sgx/load.c | 38 ++++++++++++++---- tools/testing/selftests/sgx/main.c | 42 +++++++++++++++++++- tools/testing/selftests/sgx/main.h | 4 +- tools/testing/selftests/sgx/sigstruct.c | 53 +++++++++++++------------ 6 files changed, 117 insertions(+), 36 deletions(-)