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From: "Xu, Like" <like.xu@intel.com>
To: Peter Zijlstra <peterz@infradead.org>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: "Liang, Kan" <kan.liang@linux.intel.com>,
	Like Xu <like.xu@linux.intel.com>,
	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>,
	ak@linux.intel.com, wei.w.wang@intel.com,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org, "Liang,
	Kan" <kan.liang@intel.com>
Subject: Re: [PATCH v12 00/11] Guest Last Branch Recording Enabling
Date: Fri, 3 Jul 2020 16:04:06 +0800	[thread overview]
Message-ID: <84a75c42-8a97-6771-9aab-3f9d3285486e@intel.com> (raw)
In-Reply-To: <20200703075646.GJ117543@hirez.programming.kicks-ass.net>

On 2020/7/3 15:56, Peter Zijlstra wrote:
> On Thu, Jul 02, 2020 at 03:58:42PM +0200, Peter Zijlstra wrote:
>> On Thu, Jul 02, 2020 at 09:11:06AM -0400, Liang, Kan wrote:
>>> 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.
>> For now I have:
>>
>>    git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/vlbr
>>
>> Once the 0day robot comes back all-green, I'll push it out to
>> tip/perf/vlbr and merge it into tip/perf/core.
> tip/perf/vlbr now exists, thanks!
Hi Peter,

Thanks for your patience and professional support on this feature!

Thanks,
Like Xu


      reply	other threads:[~2020-07-03  8:04 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-13  8:09 [PATCH v12 00/11] Guest Last Branch Recording Enabling Like Xu
2020-06-13  8:09 ` [PATCH v12 01/11] perf/x86: Fix variable types for LBR registers Like Xu
2020-07-03  8:01   ` [tip: perf/core] " tip-bot2 for Wei Wang
2020-11-09  6:34   ` [PATCH v12 01/11] " Andi Kleen
2020-11-11  2:14     ` Xu, Like
2020-06-13  8:09 ` [PATCH v12 02/11] perf/x86/core: Refactor hw->idx checks and cleanup Like Xu
2020-07-03  8:01   ` [tip: perf/core] " tip-bot2 for Like Xu
2020-06-13  8:09 ` [PATCH v12 03/11] perf/x86/lbr: Add interface to get LBR information Like Xu
2020-07-03  8:01   ` [tip: perf/core] " tip-bot2 for Like Xu
2020-06-13  8:09 ` [PATCH v12 04/11] perf/x86: Add constraint to create guest LBR event without hw counter Like Xu
2020-06-13  8:09 ` [PATCH v12 05/11] perf/x86: Keep LBR records unchanged in host context for guest usage Like Xu
2020-06-13  8:09 ` [PATCH v12 06/11] KVM: vmx/pmu: Expose LBR to guest via MSR_IA32_PERF_CAPABILITIES Like Xu
2020-07-08 13:36   ` Andi Kleen
2020-07-08 14:38     ` Xu, Like
2020-06-13  8:09 ` [PATCH v12 07/11] KVM: vmx/pmu: Unmask LBR fields in the MSR_IA32_DEBUGCTLMSR emualtion Like Xu
2020-06-13  9:14   ` Xiaoyao Li
2020-06-13  9:42     ` Xu, Like
2020-07-07 20:21       ` Sean Christopherson
2020-07-08  1:37         ` Xiaoyao Li
2020-07-08  7:06         ` Xu, Like
2020-07-10 16:28           ` Sean Christopherson
2020-06-13  8:09 ` [PATCH v12 08/11] KVM: vmx/pmu: Pass-through LBR msrs when guest LBR event is scheduled Like Xu
2020-06-13  8:09 ` [PATCH v12 09/11] KVM: vmx/pmu: Emulate legacy freezing LBRs on virtual PMI Like Xu
2020-06-13  8:09 ` [PATCH v12 10/11] KVM: vmx/pmu: Reduce the overhead of LBR pass-through or cancellation Like Xu
2020-06-13  8:09 ` [PATCH v12 11/11] KVM: vmx/pmu: Release guest LBR event via lazy release mechanism Like Xu
2020-06-13  8:09 ` [Qemu-devel] [PATCH 1/2] target/i386: define a new MSR based feature word - FEAT_PERF_CAPABILITIES Like Xu
2020-06-13  8:09 ` [Qemu-devel] [PATCH 2/2] target/i386: add -cpu,lbr=true support to enable guest LBR Like Xu
2020-06-23 13:13 ` [PATCH v12 00/11] Guest Last Branch Recording Enabling Like Xu
2020-07-01  2:38   ` Like Xu
2020-07-02  7:40 ` Peter Zijlstra
2020-07-02 13:11   ` Liang, Kan
2020-07-02 13:58     ` Peter Zijlstra
2020-07-03  7:56       ` Peter Zijlstra
2020-07-03  8:04         ` Xu, Like [this message]

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