linux-kernel - Re: [PATCH v2 07/12] x86/sev: Replace occurrences of sev_es_active() with prot_guest

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Message-ID: <YRuKEhzOh8pO4He1@zn.tnic>
Date:   Tue, 17 Aug 2021 12:06:10 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Tom Lendacky <thomas.lendacky@....com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        iommu@...ts.linux-foundation.org, kvm@...r.kernel.org,
        linux-efi@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-graphics-maintainer@...are.com,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        kexec@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
        Brijesh Singh <brijesh.singh@....com>,
        Joerg Roedel <joro@...tes.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Sathyanarayanan Kuppuswamy 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Tianyu Lan <Tianyu.Lan@...rosoft.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v2 07/12] x86/sev: Replace occurrences of sev_es_active()
 with prot_guest_has()

On Fri, Aug 13, 2021 at 11:59:26AM -0500, Tom Lendacky wrote:
> Replace occurrences of sev_es_active() with the more generic
> prot_guest_has() using PATTR_GUEST_PROT_STATE, except for in
> arch/x86/kernel/sev*.c and arch/x86/mm/mem_encrypt*.c where PATTR_SEV_ES
> will be used. If future support is added for other memory encyrption
> techonologies, the use of PATTR_GUEST_PROT_STATE can be updated, as
> required, to specifically use PATTR_SEV_ES.
> 
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: Borislav Petkov <bp@...en8.de>
> Signed-off-by: Tom Lendacky <thomas.lendacky@....com>
> ---
>  arch/x86/include/asm/mem_encrypt.h | 2 --
>  arch/x86/kernel/sev.c              | 6 +++---
>  arch/x86/mm/mem_encrypt.c          | 7 +++----
>  arch/x86/realmode/init.c           | 3 +--
>  4 files changed, 7 insertions(+), 11 deletions(-)

Same comments to this one as for the previous two.

-- 
Regards/Gruss,
    Boris.

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