linux-kernel - Re: [PATCH] KVM: x86/pmu: Fix reserved bits for AMD PerfEvtSeln register

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Message-ID: <d029d5e6-5b32-972d-943e-64264e599c3d@redhat.com>
Date:   Thu, 18 Nov 2021 14:23:56 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Like Xu <like.xu.linux@...il.com>
Cc:     Joerg Roedel <joro@...tes.org>,
        Kim Phillips <kim.phillips@....com>,
        Jim Mattson <jmattson@...gle.com>,
        Maxim Levitsky <mlevitsk@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: x86/pmu: Fix reserved bits for AMD PerfEvtSeln
 register

On 11/18/21 14:03, Like Xu wrote:
> 
> This is because according to APM (Revision: 4.03) Figure 13-7,
> the bits [35:32] of AMD PerfEvtSeln register is a part of the
> event select encoding, which extends the EVENT_SELECT field
> from 8 bits to 12 bits.

Queued, thanks.

Paolo