From: Andi Kleen <ak@linux.intel.com>
To: Like Xu <like.xu@linux.intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
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>,
wei.w.wang@intel.com, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org
Subject: Re: [PATCH v12 01/11] perf/x86: Fix variable types for LBR registers
Date: Sun, 8 Nov 2020 22:34:46 -0800 [thread overview]
Message-ID: <20201109063446.GM466880@tassilo.jf.intel.com> (raw)
In-Reply-To: <20200613080958.132489-2-like.xu@linux.intel.com>
On Sat, Jun 13, 2020 at 04:09:46PM +0800, Like Xu wrote:
> From: Wei Wang <wei.w.wang@intel.com>
>
> The MSR variable type can be 'unsigned int', which uses less memory than
> the longer 'unsigned long'. Fix 'struct x86_pmu' for that. The lbr_nr won't
> be a negative number, so make it 'unsigned int' as well.
Hi,
What's the status of this patchkit? It would be quite useful to me (and
various other people) to use LBRs in guest. I reviewed it earlier and the
patches all looked good to me. But i don't see it in any -next tree.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Could it please be merged?
Thanks,
-Andi
next prev parent reply other threads:[~2020-11-09 6:34 UTC|newest]
Thread overview: 36+ 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 ` Andi Kleen [this message]
2020-11-11 2:14 ` [PATCH v12 01/11] " 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 ` 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
2020-06-13 8:09 ` [Qemu-devel] [PATCH 2/2] target/i386: add -cpu, lbr=true " 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
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