linux-kernel - Re: [RFC v1 0/9] PEBS enabling in KVM guest

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Message-ID: <20190829072853.GK2369@hirez.programming.kicks-ass.net>
Date:   Thu, 29 Aug 2019 09:28:53 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Luwei Kang <luwei.kang@...el.com>
Cc:     pbonzini@...hat.com, rkrcmar@...hat.com,
        sean.j.christopherson@...el.com, vkuznets@...hat.com,
        wanpengli@...cent.com, jmattson@...gle.com, joro@...tes.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        x86@...nel.org, ak@...ux.intel.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC v1 0/9] PEBS enabling in KVM guest

On Thu, Aug 29, 2019 at 01:34:00PM +0800, Luwei Kang wrote:
> Intel new hardware introduces some Precise Event-Based Sampling (PEBS)
> extensions that output the PEBS record to Intel PT stream instead of
> DS area. The PEBS record will be packaged in a specific format when
> outputing to Intel PT.
> 
> This patch set will enable PEBS functionality in KVM Guest by PEBS
> output to Intel PT. The native driver as [1] (still under review).
> 
> [1] https://www.spinics.net/lists/kernel/msg3215354.html

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