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 93E61C19F2B for ; Thu, 28 Jul 2022 15:15:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230309AbiG1PPw (ORCPT ); Thu, 28 Jul 2022 11:15:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57760 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229508AbiG1PPt (ORCPT ); Thu, 28 Jul 2022 11:15:49 -0400 Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2B7F42AC0; Thu, 28 Jul 2022 08:15:47 -0700 (PDT) Received: by mail-ed1-x530.google.com with SMTP id s9so2578666edd.8; Thu, 28 Jul 2022 08:15:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=f3YBoHwrtP3HFypeBuasmlOKhF1f/UhmYbErWI6N/fc=; b=WYTWn1DiXpYspI+NywPkxEe/ysA2nR9YEuRV068M+fak5tujvSlmFE9T5dSKzerkQz rhu7x5SE6J0xVi1FqVo0IWVop9EeaMZJOIHdx52Pkm7R3AKI2Q8iu47IDy5ZmTnl9Oaj s3Ry5fueSsyEZfrcNurGvvl/KiGSqaIt7FIcifZdvBKihliIb4HtyqUa55K+n007HqAV P74SlSfMnhxWlyRTwZYBHO0/JRFJuChu7bMcwneYZ4CwPRVKkU9WT9c6QRdh3sqO3sDF +Ohpypizx27sFtCLIY0bdShtnvKYve3fEcZLclpnDasLj9QK/y+Qq3c0g08g1Q0IIwJH JCkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:message-id:date:mime-version:user-agent :subject:content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=f3YBoHwrtP3HFypeBuasmlOKhF1f/UhmYbErWI6N/fc=; b=iqumtjwaDXFC7SfE9OUjV1ltNYhRapkVeGNYFcwnoiSUZi4WKmYCpi9mSb/552KaPx QesOuWMdy/QeI0uMK4dOaWssexCQF+A7sadsLeF8/dIzzNk9eu34b+YC385zqc8dSjLg eVWcATpPGkP/bY5Rlic/Ht2F305IRbzKujIT2QUEaMGXLwYGVXxTH7s3LKZlN2+EfVjn JrhOAm8iYQfk41fPaUmNLbXi0kicG+mkkkGq61t6T2wZAHcncSt8oQu/cV0kUoRIl275 7SRyQC71fqjwlOwQLJSByfGXTAvh9LPNcAuupw7IXiJGuf/EOqFB1FXF90QVdw/MO+tR +rvg== X-Gm-Message-State: AJIora8BcnUKG2GeRfhLqypWdEb+WoJrYfqbRBGWO/CIrtPCUOsXQ+sD 8aekaZPooujUCOFQilXTuXQUUXBUCcqImA== X-Google-Smtp-Source: AGRyM1vVXhUN1KcD3RSxtVt3dCoOXmbB6SS8wdJneDm2ze+tg0M7l5szCpJe5yh481zYBeCz30yfCw== X-Received: by 2002:a05:6402:51ce:b0:43c:4326:26d3 with SMTP id r14-20020a05640251ce00b0043c432626d3mr14301428edd.411.1659021345521; Thu, 28 Jul 2022 08:15:45 -0700 (PDT) Received: from ?IPV6:2001:b07:6468:f312:9af8:e5f5:7516:fa89? ([2001:b07:6468:f312:9af8:e5f5:7516:fa89]) by smtp.googlemail.com with ESMTPSA id w1-20020aa7da41000000b0043a4de1d421sm830746eds.84.2022.07.28.08.15.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Jul 2022 08:15:44 -0700 (PDT) Sender: Paolo Bonzini Message-ID: Date: Thu, 28 Jul 2022 17:15:43 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH] KVM: SVM: Dump Virtual Machine Save Area (VMSA) to klog Content-Language: en-US To: Jarkko Sakkinen Cc: Jarkko Sakkinen , Harald Hoyer , Sean Christopherson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , "H. Peter Anvin" , "open list:KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)" , "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" References: <20220728050919.24113-1-jarkko@profian.com> From: Paolo Bonzini In-Reply-To: <20220728050919.24113-1-jarkko@profian.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/28/22 07:09, Jarkko Sakkinen wrote: > 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; > } > Queued, thanks. Paolo