From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 99967C43215 for ; Tue, 19 Nov 2019 05:38:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 61B6C214DE for ; Tue, 19 Nov 2019 05:38:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574141880; bh=NBNBvP45RE2ewafMBBNQHhDvHIX7XZ6vY2f8zsAHmcI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=mSfs4m/Xl99FDuCxVMiwYbdCVHric0IazldNTQIWMRxcifBowTk+gqETJ1MW8+n3N O4QyrBQB27yykynEtvmFU5FYB+Bph6SruerwSMJ7ppfUEcRbMrJ0N4UoHEXGInol81 0pQjJHmx3HA/Dp8ghU5DwUCf2ZZvTJoiiAbiWi4s= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730139AbfKSFh7 (ORCPT ); Tue, 19 Nov 2019 00:37:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:59832 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729409AbfKSFhz (ORCPT ); Tue, 19 Nov 2019 00:37:55 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0D705208C3; Tue, 19 Nov 2019 05:37:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574141874; bh=NBNBvP45RE2ewafMBBNQHhDvHIX7XZ6vY2f8zsAHmcI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hMCrZCxwr7BBgmMfo7ztRc8ooh3wIuH5GAw9HqSsurNSlPT5/AWiFSEAEEN1+6mRJ JzDmtLDDfgZbusYACLbbZsO7Fla6adBgVl0ufSl+zdazJd27heWiD9nI30hy5HD1cM Wiklf+pbCpbesmBJFZhyK39vkm7CK2yVc6YeN2Qw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Borislav Petkov , Sasha Levin Subject: [PATCH 4.19 308/422] x86/mce-inject: Reset injection struct after injection Date: Tue, 19 Nov 2019 06:18:25 +0100 Message-Id: <20191119051418.957799948@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191119051400.261610025@linuxfoundation.org> References: <20191119051400.261610025@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Borislav Petkov [ Upstream commit 7401a633c34adc7aefd3edfec60074cb0475a3e8 ] Clear the MCE struct which is used for collecting the injection details after injection. Also, populate it with more details from the machine. Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20180905081954.10391-1-bp@alien8.de Signed-off-by: Sasha Levin --- arch/x86/kernel/cpu/mcheck/mce-inject.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c index ff1c00b695aed..1ceccc4a5472c 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-inject.c +++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c @@ -106,6 +106,9 @@ static void setup_inj_struct(struct mce *m) memset(m, 0, sizeof(struct mce)); m->cpuvendor = boot_cpu_data.x86_vendor; + m->time = ktime_get_real_seconds(); + m->cpuid = cpuid_eax(1); + m->microcode = boot_cpu_data.microcode; } /* Update fake mce registers on current CPU. */ @@ -580,6 +583,9 @@ static int inj_bank_set(void *data, u64 val) m->bank = val; do_inject(); + /* Reset injection struct */ + setup_inj_struct(&i_mce); + return 0; } -- 2.20.1