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Date:   Tue, 10 Aug 2021 13:25:07 +0200
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,
        linux-coco@lists.linux.dev, linux-mm@kvack.org,
        linux-crypto@vger.kernel.org, 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>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Jim Mattson <jmattson@google.com>,
        Andy Lutomirski <luto@kernel.org>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Sergio Lopez <slp@redhat.com>, Peter Gonda <pgonda@google.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
        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>, tony.luck@intel.com,
        npmccallum@redhat.com, brijesh.ksingh@gmail.com
Subject: Re: [PATCH Part1 RFC v4 04/36] x86/mm: Add sev_feature_enabled()
 helper
Message-ID: <YRJiEwvUJpO9LUfC@zn.tnic>
References: <20210707181506.30489-1-brijesh.singh@amd.com>
 <20210707181506.30489-5-brijesh.singh@amd.com>
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On Wed, Jul 07, 2021 at 01:14:34PM -0500, Brijesh Singh wrote:
> The sev_feature_enabled() helper can be used by the guest to query whether
> the SNP - Secure Nested Paging feature is active.
> 
> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> ---
>  arch/x86/include/asm/mem_encrypt.h |  8 ++++++++
>  arch/x86/include/asm/msr-index.h   |  2 ++
>  arch/x86/mm/mem_encrypt.c          | 14 ++++++++++++++
>  3 files changed, 24 insertions(+)

This will get replaced by this I presume:

https://lkml.kernel.org/r/cover.1627424773.git.thomas.lendacky@amd.com

-- 
Regards/Gruss,
    Boris.

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