linux-kernel - Re: [PATCH v12 00/11] Guest Last Branch Recording Enabling

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Message-ID: <5d3980e3-1c49-4174-4cdb-f40fc21ee6c1@linux.intel.com>
Date:   Thu, 2 Jul 2020 09:11:06 -0400
From:   "Liang, Kan" <kan.liang@...ux.intel.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Like Xu <like.xu@...ux.intel.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, ak@...ux.intel.com,
        wei.w.wang@...el.com, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, "Liang, Kan" <kan.liang@...el.com>
Subject: Re: [PATCH v12 00/11] Guest Last Branch Recording Enabling



On 7/2/2020 3:40 AM, Peter Zijlstra wrote:
> On Sat, Jun 13, 2020 at 04:09:45PM +0800, Like Xu wrote:
>> Like Xu (10):
>>    perf/x86/core: Refactor hw->idx checks and cleanup
>>    perf/x86/lbr: Add interface to get LBR information
>>    perf/x86: Add constraint to create guest LBR event without hw counter
>>    perf/x86: Keep LBR records unchanged in host context for guest usage
> 
>> Wei Wang (1):
>>    perf/x86: Fix variable types for LBR registers
> 
>>   arch/x86/events/core.c            |  26 +--
>>   arch/x86/events/intel/core.c      | 109 ++++++++-----
>>   arch/x86/events/intel/lbr.c       |  51 +++++-
>>   arch/x86/events/perf_event.h      |   8 +-
>>   arch/x86/include/asm/perf_event.h |  34 +++-
> 
> These look good to me; but at the same time Kan is sending me
> Architectural LBR patches.
> 
> Kan, if I take these perf patches and stick them in a tip/perf/vlbr
> topic branch, can you rebase the arch lbr stuff on top, or is there
> anything in the arch-lbr series that badly conflicts with this work?
> 

Yes, I can rebase the arch lbr patches on top of them.
Please push the tip/perf/vlbr branch, so I can pull and rebase my patches.

Thanks,
Kan