linux-kernel - Re: [PATCH v1 0/4] Share common features between AMD SEV / TDX guest

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Message-ID: <611026ac-0f15-0da4-aa97-e0412f1fcc78@amd.com>
Date:   Wed, 1 Dec 2021 13:57:43 -0600
From:   Tom Lendacky <thomas.lendacky@....com>
To:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Joerg Roedel <jroedel@...e.de>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "H . Peter Anvin" <hpa@...or.com>, Tony Luck <tony.luck@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan <knsathya@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 0/4] Share common features between AMD SEV / TDX guest

On 12/1/21 10:34 AM, Kirill A. Shutemov wrote:
> On Mon, Nov 15, 2021 at 04:45:24PM -0800, Kuppuswamy Sathyanarayanan wrote:
>> Hi All,
>>
>> Intel's Trust Domain Extensions (TDX) protect guest VMs from malicious
>> hosts and some physical attacks. TDX has a lot of similarities to AMD SEV.
>> Features like encryption/decryption and string I/O unroll support can
>> be shared between these two technologies.
>>
>> This patch set adds infrastructure changes required to share the code
>> between AMD SEV and TDX.
> 
> Tom, Joerg, could you folks look at this? Your Ack would be very helpful.

I had a couple of comments on the patches, but they did build and test 
successfully with both SEV and SEV-ES guests.

Thanks,
Tom

>