linux-kernel - Re: [PATCH 1/4] KVM: x86: hyper-v: Check access to hypercall before reading XMM registers

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Message-ID: <20210730142933.GA20232@u366d62d47e3651.ant.amazon.com>
Date:   Fri, 30 Jul 2021 16:29:34 +0200
From:   Siddharth Chandrasekaran <sidcha@...zon.de>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>
CC:     <kvm@...r.kernel.org>, Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] KVM: x86: hyper-v: Check access to hypercall before reading
 XMM registers

On Fri, Jul 30, 2021 at 02:26:22PM +0200, Vitaly Kuznetsov wrote:
> In case guest doesn't have access to the particular hypercall we can avoid
> reading XMM registers.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>

Reviewed-by: Siddharth Chandrasekaran <sidcha@...zon.de>



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