linux-kernel - Re: [Part2 PATCH v5 05/31] KVM: SVM: Prepare to reserve asid for SEV guest

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Message-ID: <20171004143326.axchq36cftrugeja@pd.tnic>
Date:   Wed, 4 Oct 2017 16:33:26 +0200
From:   Borislav Petkov <bp@...e.de>
To:     Brijesh Singh <brijesh.singh@....com>
Cc:     x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Joerg Roedel <joro@...tes.org>,
        Tom Lendacky <thomas.lendacky@....com>
Subject: Re: [Part2 PATCH v5 05/31] KVM: SVM: Prepare to reserve asid for SEV
 guest

On Wed, Oct 04, 2017 at 08:13:46AM -0500, Brijesh Singh wrote:
> In current implementation, asid allocation starts from 1, adds a
> min_asid variable in svm_vcpu structure to allow starting asid from
> something other than 1.

Rewrite that to:

"Currently, ASID allocation starts at 1. Add a svm_cpu_data.min_asid
which allows supplying a dynamic start ASID."

> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: "H. Peter Anvin" <hpa@...or.com>
> Cc: Paolo Bonzini <pbonzini@...hat.com>
> Cc: "Radim Krčmář" <rkrcmar@...hat.com>
> Cc: Joerg Roedel <joro@...tes.org>
> Cc: Borislav Petkov <bp@...e.de>
> Cc: Tom Lendacky <thomas.lendacky@....com>
> Cc: x86@...nel.org
> Cc: kvm@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Reviewed-by: Paolo Bonzini <pbonzini@...hat.com>
> Signed-off-by: Brijesh Singh <brijesh.singh@....com>
> ---
>  arch/x86/kvm/svm.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Otherwise:

Reviewed-by: Borislav Petkov <bp@...e.de>

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--