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Date:   Tue, 1 Feb 2022 14:02:42 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Brijesh Singh <brijesh.singh@amd.com>
Cc:     x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
        linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org,
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        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Joerg Roedel <jroedel@suse.de>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Ard Biesheuvel <ardb@kernel.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Sean Christopherson <seanjc@google.com>,
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        Andy Lutomirski <luto@kernel.org>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Sergio Lopez <slp@redhat.com>, Peter Gonda <pgonda@google.com>,
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        David Rientjes <rientjes@google.com>,
        Dov Murik <dovmurik@linux.ibm.com>,
        Tobin Feldman-Fitzthum <tobin@ibm.com>,
        Michael Roth <michael.roth@amd.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        "Kirill A . Shutemov" <kirill@shutemov.name>,
        Andi Kleen <ak@linux.intel.com>,
        "Dr . David Alan Gilbert" <dgilbert@redhat.com>,
        brijesh.ksingh@gmail.com, tony.luck@intel.com, marcorr@google.com,
        sathyanarayanan.kuppuswamy@linux.intel.com,
        Venu Busireddy <venu.busireddy@oracle.com>
Subject: Re: [PATCH v9 02/43] KVM: SVM: Create a separate mapping for the
 SEV-ES save area
Message-ID: <YfkvchuxmkHgnPWT@zn.tnic>
References: <20220128171804.569796-1-brijesh.singh@amd.com>
 <20220128171804.569796-3-brijesh.singh@amd.com>
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On Fri, Jan 28, 2022 at 11:17:23AM -0600, Brijesh Singh wrote:
> From: Tom Lendacky <thomas.lendacky@amd.com>
> 
> The save area for SEV-ES/SEV-SNP guests, as used by the hardware, is
> different from the save area of a non SEV-ES/SEV-SNP guest.
> 
> This is the first step in defining the multiple save areas to keep them
> separate and ensuring proper operation amongst the different types of
> guests. Create an SEV-ES/SEV-SNP save area and adjust usage to the new
> save area definition where needed.
> 
> Reviewed-by: Venu Busireddy <venu.busireddy@oracle.com>
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> ---
>  arch/x86/include/asm/svm.h | 87 +++++++++++++++++++++++++++++---------
>  arch/x86/kvm/svm/sev.c     | 24 +++++------
>  arch/x86/kvm/svm/svm.h     |  2 +-
>  3 files changed, 80 insertions(+), 33 deletions(-)

https://lore.kernel.org/r/Yc2jzOunYej4vwSc@zn.tnic

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette