linux-kernel - Re: [PATCH v3 4/4] KVM: x86: Use static calls to reduce kvm_pmu

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Message-ID: <YkOas2UgOsUnhMkZ@google.com>
Date:   Tue, 29 Mar 2022 23:48:03 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Like Xu <like.xu.linux@...il.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
        Jim Mattson <jmattson@...gle.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Joerg Roedel <joro@...tes.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] KVM: x86: Use static calls to reduce kvm_pmu_ops
 overhead

On Mon, Mar 07, 2022, Like Xu wrote:
> From: Like Xu <likexu@...cent.com>
> 
> Use static calls to improve kvm_pmu_ops performance. Introduce the
> definitions that will be used by a subsequent patch to actualize the
> savings. Add a new kvm-x86-pmu-ops.h header that can be used for the
> definition of static calls. This header is also intended to be
> used to simplify the defition of amd_pmu_ops and intel_pmu_ops.

This is stale, there are no subsequent patches and I think we decided to not fill
vendor ops with the ops.h headers.  I'll tweak it when sending v3.1.