From patchwork Tue Jul 27 03:34:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pengfei Xu X-Patchwork-Id: 487102 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, 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 2058AC4338F for ; Tue, 27 Jul 2021 03:35:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EED5C61077 for ; Tue, 27 Jul 2021 03:35:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234920AbhG0Cyz (ORCPT ); Mon, 26 Jul 2021 22:54:55 -0400 Received: from mga18.intel.com ([134.134.136.126]:58530 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234422AbhG0Cyz (ORCPT ); Mon, 26 Jul 2021 22:54:55 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10057"; a="199586971" X-IronPort-AV: E=Sophos;i="5.84,272,1620716400"; d="scan'208";a="199586971" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jul 2021 20:35:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,272,1620716400"; d="scan'208";a="505307685" Received: from fedora29.sh.intel.com ([10.239.182.87]) by FMSMGA003.fm.intel.com with ESMTP; 26 Jul 2021 20:35:20 -0700 From: Pengfei Xu To: Shuah Khan , linux-kselftest , linux-kernel Cc: Pengfei Xu , Heng Su , Yu Yu-cheng , Yu Fenghua , Hansen Dave , Luck Tony , Mehta Sohil , Chen Yu C Subject: [RFC PATCH v1 0/2] Introduce XSAVE/XRSTOR self-test Date: Tue, 27 Jul 2021 11:34:42 +0800 Message-Id: X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The XSAVE feature set supports the saving and restoring of state components such as FPU, which is used for process context switching. In order to ensure that XSAVE works correctly, add XSAVE basic test for XSAVE architecture functionality. This patch set tests XSAVE/XRSTOR instructions on x86 platforms and verify if the XSAVE/XRSTOR works correctly during signal handling. Cases such as signal handling, process creation, other xstate(except FPU) tests for XSAVE check, etc. will be added to the Linux kernel self-test. If appropriate, it is even planned to add the [1] mentioned XSAVE issues reproduce and some XSAVE anomaly tests to the kernel self-test. [1]: https://lore.kernel.org/lkml/0000000000004c453905c30f8334@google.com/ Pengfei Xu (2): selftests/xsave: test basic XSAVE architecture functionality selftests/xsave: add xsave test during signal handling tools/testing/selftests/Makefile | 1 + tools/testing/selftests/xsave/.gitignore | 3 + tools/testing/selftests/xsave/Makefile | 6 + tools/testing/selftests/xsave/xsave_common.h | 246 ++++++++++++++++++ .../selftests/xsave/xsave_instruction.c | 83 ++++++ .../selftests/xsave/xsave_signal_handle.c | 184 +++++++++++++ 6 files changed, 523 insertions(+) create mode 100644 tools/testing/selftests/xsave/.gitignore create mode 100644 tools/testing/selftests/xsave/Makefile create mode 100644 tools/testing/selftests/xsave/xsave_common.h create mode 100644 tools/testing/selftests/xsave/xsave_instruction.c create mode 100644 tools/testing/selftests/xsave/xsave_signal_handle.c