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From:   Jim Mattson <jmattson@google.com>
Date:   Sat, 12 Feb 2022 15:32:34 -0800
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Subject: Re: [PATCH kvm/queue v2 2/3] perf: x86/core: Add interface to query
 perfmon_event_map[] directly
To:     Dave Hansen <dave.hansen@intel.com>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Like Xu <like.xu.linux@gmail.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Sean Christopherson <seanjc@google.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org, Like Xu <likexu@tencent.com>,
        Stephane Eranian <eranian@google.com>,
        David Dunn <daviddunn@google.com>
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On Wed, Feb 9, 2022 at 10:57 AM Dave Hansen <dave.hansen@intel.com> wrote:

> Does SGX cause problem for these people?  It can create some of the same
> collection gaps:
>
>         performance monitoring activities are suppressed when entering
>         an opt-out (of performance monitoring) enclave.

There's our precedent!