linux-kernel - 答复: [PATCH][v2] kvm: x86: emulate APERF/MPERF registers

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Date:   Wed, 29 Apr 2020 09:43:24 +0000
From:   "Li,Rongqing" <lirongqing@...du.com>
To:     Peter Zijlstra <peterz@...radead.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>, "hpa@...or.com" <hpa@...or.com>,
        "bp@...en8.de" <bp@...en8.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "joro@...tes.org" <joro@...tes.org>,
        "jmattson@...gle.com" <jmattson@...gle.com>,
        "wanpengli@...cent.com" <wanpengli@...cent.com>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "sean.j.christopherson@...el.com" <sean.j.christopherson@...el.com>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>
Subject: 答复: [PATCH][v2] kvm: x86: emulate APERF/MPERF registers

> 
> Would it make sense to provide a pass-through APERF/MPERF for
> KVM_HINTS_REALTIME ? Because that hint guarantees we have a 1:1
> vCPU:CPU binding and guaranteed no over-commit.

Make sense

I think this can be done in a separate patch for KVM_HINTS_REALTIME

Thanks

=Li