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Subject: Re: [PATCH] kvm: x86: limit the maximum number of vPMU fixed counters
 to 3
To:     like.xu@intel.com, Like Xu <like.xu@linux.intel.com>,
        kvm@vger.kernel.org
Cc:     Sean Christopherson <sean.j.christopherson@intel.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Jim Mattson <jmattson@google.com>,
        Joerg Roedel <joro@8bytes.org>, linux-kernel@vger.kernel.org
References: <20200624015928.118614-1-like.xu@linux.intel.com>
 <8de3f450-7efd-96ab-fdf8-169b3327e5ac@intel.com>
From:   Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <9b50db05-759e-c95c-35b2-99fba50e6997@redhat.com>
Date:   Wed, 8 Jul 2020 13:09:22 +0200
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On 08/07/20 09:51, Xu, Like wrote:
> Kindly ping.
> 
> I think we may need this patch, as we limit the maximum vPMU version to 2:
>     eax.split.version_id = min(cap.version, 2);

I don't think this is a problem.  Are you planning to add support for
the fourth counter?

Paolo