linux-kernel - Re: [PATCH RFC v7 13/64] x86/cpufeatures: Add SEV-SNP CPU feature

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Message-ID: <Y9qx5NbZIRdpHy5J@zn.tnic>
Date:   Wed, 1 Feb 2023 19:39:32 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Michael Roth <michael.roth@....com>
Cc:     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, pbonzini@...hat.com, seanjc@...gle.com,
        vkuznets@...hat.com, wanpengli@...cent.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, dgilbert@...hat.com, jarkko@...nel.org,
        ashish.kalra@....com, harald@...fian.com,
        Brijesh Singh <brijesh.singh@....com>,
        Jarkko Sakkinen <jarkko@...fian.com>
Subject: Re: [PATCH RFC v7 13/64] x86/cpufeatures: Add SEV-SNP CPU feature

On Wed, Dec 14, 2022 at 01:40:05PM -0600, 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.
> 
> Link: https://lore.kernel.org/all/YrGINaPc3cojG6%2F3@zn.tnic/

That points to some review feedback I've given - dunno if it is
relevant.

> Signed-off-by: Brijesh Singh <brijesh.singh@....com>
> Signed-off-by: Jarkko Sakkinen <jarkko@...fian.com>

I read this as Jarkko has handled this patch too. Is that the case?

> Signed-off-by: Ashish Kalra <Ashish.Kalra@....com>
> Signed-off-by: Michael Roth <michael.roth@....com>

Those last two are ok - you took ovef from Ashish.

Thx.

-- 
Regards/Gruss,
    Boris.

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