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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E37EAC3F6B0 for ; Thu, 28 Jul 2022 05:09:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231478AbiG1FJe (ORCPT ); Thu, 28 Jul 2022 01:09:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229637AbiG1FJb (ORCPT ); Thu, 28 Jul 2022 01:09:31 -0400 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [IPv6:2a00:1450:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36F9543306 for ; Wed, 27 Jul 2022 22:09:30 -0700 (PDT) Received: by mail-lf1-x12b.google.com with SMTP id q23so1254812lfr.3 for ; Wed, 27 Jul 2022 22:09:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=profian-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=6yrB/ZBc4AaM3PTfukDFFQkMrZq8R3ioHC18SLmmnCE=; b=SFbshZNfUR6fj3yOlseyUXmASXN7Ndx1R2N114OGFVKoPkMztestZ8+XD0sQ8vwgbT NNC3vqpUnhH7bkcbj4maY6IXvwePDvlrKkLUrjvykaK3iTUGsv0aAL7LWQzm6+terH77 xxToBOr6pza3KlooBagacWXTgLIyaz+TGKQfKxcMLyfQS1b3zbRISM7lYte8ubSx7s3H hebKfPmgsldIC5ZtXBUmasGm1Tneynr/dyp58j3UdEEj12QffQcZYq1+3Is3iVzBbPkA lyvpmc51URJu9nZX6yp6sQ6i57IFy5MKRCncvHuHhxCx6eiKA5RB0C+ZwPrEbPBezUk0 oiEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=6yrB/ZBc4AaM3PTfukDFFQkMrZq8R3ioHC18SLmmnCE=; b=LKpcAXqIXxwFPSFDa12Kpr01WVL+Y4YBGL2ECZEurUi1+8pXjkIfXwkZGEsY0s8+VU YMP2a090Xyg2dsZp9HleNSuInk5+kWbz2xMgT92PApnYFWbyTazqAqCyGSPvJ805pFwc 9LoCJgRhZ5PJL0Mzxyi0pqI7p63Px8y5Pvs5EZwd2or5h5/9RdauUPPhGVeJrgZdzliF ZsNLdLyPhzilHd6ujIOscUEOXuwFg7y/lnlJg8vZI5zAgatQcMhRmUcELAUqNFAUYT6B RTWktQIms95RlwSXj2niK5UGkzoawSIQBJOGhdUXUgLdy9oGIfIgZKBxW/Ee7LHOZjeO E5aQ== X-Gm-Message-State: AJIora+4W1YCQxjSmS1EV9/2fwbcZV50fp6vOHY+XLuINhiWjD6oX26B 7g/B8K/b79vqFE5JCly1XtIdOg== X-Google-Smtp-Source: AGRyM1ukyRHrsKJyCxB1lHW61Pb2+N2oTKS6DJ1xfcjXT7zFr/hyTS5v2MYD/uVnObDEvnDV+pCWoA== X-Received: by 2002:a19:6715:0:b0:48a:be20:6ffd with SMTP id b21-20020a196715000000b0048abe206ffdmr1652390lfc.383.1658984968405; Wed, 27 Jul 2022 22:09:28 -0700 (PDT) Received: from localhost (91-154-92-55.elisa-laajakaista.fi. [91.154.92.55]) by smtp.gmail.com with ESMTPSA id 3-20020ac24843000000b0048ac922aba2sm6419lfy.103.2022.07.27.22.09.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Jul 2022 22:09:27 -0700 (PDT) From: Jarkko Sakkinen To: Paolo Bonzini Cc: Jarkko Sakkinen , Jarkko Sakkinen , Harald Hoyer , Sean Christopherson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), "H. Peter Anvin" , kvm@vger.kernel.org (open list:KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)), linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)) Subject: [PATCH] KVM: SVM: Dump Virtual Machine Save Area (VMSA) to klog Date: Thu, 28 Jul 2022 08:09:19 +0300 Message-Id: <20220728050919.24113-1-jarkko@profian.com> X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As Virtual Machine Save Area (VMSA) is essential in troubleshooting attestation, dump it to the klog with the KERN_DEBUG level of priority. Cc: Jarkko Sakkinen Suggested-by: Harald Hoyer Signed-off-by: Jarkko Sakkinen --- arch/x86/kvm/svm/sev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 0c240ed04f96..6d44aaba321a 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -603,6 +603,9 @@ static int sev_es_sync_vmsa(struct vcpu_svm *svm) save->xss = svm->vcpu.arch.ia32_xss; save->dr6 = svm->vcpu.arch.dr6; + pr_debug("Virtual Machine Save Area (VMSA):\n"); + print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, save, sizeof(*save), false); + return 0; } -- 2.37.1