linux-kernel - Re: [PATCH Part1 RFC v3 21/22] x86/sev: Register SNP guest request platform device

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Message-ID: <YMxrd5M1teku/hnA@zn.tnic>
Date:   Fri, 18 Jun 2021 11:46:31 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Brijesh Singh <brijesh.singh@....com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        linux-efi@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-coco@...ts.linux.dev, linux-mm@...ck.org,
        linux-crypto@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Joerg Roedel <jroedel@...e.de>,
        Tom Lendacky <thomas.lendacky@....com>,
        "H. Peter Anvin" <hpa@...or.com>, Ard Biesheuvel <ardb@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Sergio Lopez <slp@...hat.com>, Peter Gonda <pgonda@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        David Rientjes <rientjes@...gle.com>, tony.luck@...el.com,
        npmccallum@...hat.com
Subject: Re: [PATCH Part1 RFC v3 21/22] x86/sev: Register SNP guest request
 platform device

On Wed, Jun 02, 2021 at 09:04:15AM -0500, Brijesh Singh wrote:
>  arch/x86/include/asm/sev.h      |  12 +++
>  arch/x86/include/uapi/asm/svm.h |   2 +
>  arch/x86/kernel/sev.c           | 176 ++++++++++++++++++++++++++++++++
>  arch/x86/platform/efi/efi.c     |   2 +
>  include/linux/efi.h             |   1 +
>  include/linux/sev-guest.h       |  76 ++++++++++++++
>  6 files changed, 269 insertions(+)
>  create mode 100644 include/linux/sev-guest.h

This patch is at least three patches in one:

1. EFI changes
2. SNP_GUEST_REQUEST struct etc definitions
3. Add the functionality.

Please split it this way before I take a look.

Thx.

-- 
Regards/Gruss,
    Boris.

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