linux-kernel - Re: [PATCH v10 04/50] x86/cpufeatures: Add SEV-SNP CPU feature

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Date:   Wed, 13 Dec 2023 14:31:05 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Michael Roth <michael.roth@....com>, kvm@...r.kernel.org,
        linux-coco@...ts.linux.dev, linux-mm@...ck.org,
        linux-crypto@...r.kernel.org, x86@...nel.org,
        linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
        jroedel@...e.de, thomas.lendacky@....com, hpa@...or.com,
        ardb@...nel.org, seanjc@...gle.com, vkuznets@...hat.com,
        jmattson@...gle.com, luto@...nel.org, dave.hansen@...ux.intel.com,
        slp@...hat.com, pgonda@...gle.com, peterz@...radead.org,
        srinivas.pandruvada@...ux.intel.com, rientjes@...gle.com,
        dovmurik@...ux.ibm.com, tobin@....com, vbabka@...e.cz,
        kirill@...temov.name, ak@...ux.intel.com, tony.luck@...el.com,
        marcorr@...gle.com, sathyanarayanan.kuppuswamy@...ux.intel.com,
        alpergun@...gle.com, jarkko@...nel.org, ashish.kalra@....com,
        nikunj.dadhania@....com, pankaj.gupta@....com,
        liam.merwick@...cle.com, zhi.a.wang@...el.com,
        Brijesh Singh <brijesh.singh@....com>,
        Jarkko Sakkinen <jarkko@...fian.com>
Subject: Re: [PATCH v10 04/50] x86/cpufeatures: Add SEV-SNP CPU feature

On 12/13/23 14:13, Borislav Petkov wrote:
> On Wed, Dec 13, 2023 at 01:51:58PM +0100, Paolo Bonzini wrote:
>> On 10/16/23 15:27, Michael Roth wrote:
>>> From: Brijesh Singh <brijesh.singh@....com>
>>>
>>> Add CPU feature detection for Secure Encrypted Virtualization with
>>> Secure Nested Paging. This feature adds a strong memory integrity
>>> protection to help prevent malicious hypervisor-based attacks like
>>> data replay, memory re-mapping, and more.
>>>
>>> Signed-off-by: Brijesh Singh <brijesh.singh@....com>
>>> Signed-off-by: Jarkko Sakkinen <jarkko@...fian.com>
>>> Signed-off-by: Ashish Kalra <Ashish.Kalra@....com>
>>> Signed-off-by: Michael Roth <michael.roth@....com>
>>
>> Queued, thanks.
> 
> Paolo, please stop queueing x86 patches through your tree. I'll give you
> an immutable branch with the x86 bits when the stuff has been reviewed.

Sure, I only queued it because you gave Acked-by for 05/50 and this is 
an obvious dependency.  I would like to get things in as they are ready 
(whenever it makes sense), so if you want to include those two in the 
x86 tree for 6.8, that would work for me.

Paolo