linux-kernel - Re: [PATCH] KVM: SVM: Mark SEV launch secret pages as dirty.

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Message-ID: <20200925045434.GA602062@kroah.com>
Date:   Fri, 25 Sep 2020 06:54:34 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Cfir Cohen <cfir@...gle.com>
Cc:     "kvm @ vger . kernel . org" <kvm@...r.kernel.org>,
        Lendacky Thomas <thomas.lendacky@....com>,
        Singh Brijesh <brijesh.singh@....com>,
        Grimm Jon <Jon.Grimm@....com>,
        David Rientjes <rientjes@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] KVM: SVM: Mark SEV launch secret pages as dirty.

On Thu, Sep 24, 2020 at 07:00:11PM -0700, Cfir Cohen wrote:
> The LAUNCH_SECRET command performs encryption of the
> launch secret memory contents. Mark pinned pages as
> dirty, before unpinning them.
> This matches the logic in sev_launch_update_data().
> 
> Fixes: 9c5e0afaf157 ("KVM: SVM: Add support for SEV LAUNCH_SECRET command")
> Signed-off-by: Cfir Cohen <cfir@...gle.com>
> ---
> Changelog since v2:
>  - Added 'Fixes' tag, updated comments.
> Changelog since v1:
>  - Updated commit message.
> 
>  arch/x86/kvm/svm/sev.c | 26 +++++++++++++++++---------
>  1 file changed, 17 insertions(+), 9 deletions(-)
> 

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>