From: Sean Christopherson <seanjc@google.com>
To: Like Xu <like.xu.linux@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/7] x86/pmu: Corner cases fixes and optimization
Date: Thu, 22 Sep 2022 22:29:49 +0000 [thread overview]
Message-ID: <Yyzh3VD+Gji8t9OO@google.com> (raw)
In-Reply-To: <20220831085328.45489-1-likexu@tencent.com>
On Wed, Aug 31, 2022, Like Xu wrote:
> Like Xu (7):
> KVM: x86/pmu: Avoid setting BIT_ULL(-1) to pmu->host_cross_mapped_mask
> KVM: x86/pmu: Don't generate PEBS records for emulated instructions
> KVM: x86/pmu: Avoid using PEBS perf_events for normal counters
> KVM: x86/pmu: Defer reprogram_counter() to kvm_pmu_handle_event()
> KVM: x86/pmu: Defer counter emulated overflow via pmc->prev_counter
> KVM: x86/svm/pmu: Direct access pmu->gp_counter[] to implement
> amd_*_to_pmc()
> KVM: x86/svm/pmu: Rewrite get_gp_pmc_amd() for more counters
> scalability
With a few tweaks (will respond to individual patches), pushed everything except
the "Defer" patches to to branch `for_paolo/6.1` at:
https://github.com/sean-jc/linux.git
Unless you hear otherwise, it will make its way to kvm/queue "soon".
Regarding the "defer" patches, your patches are ok (with one or two tweaks), but
there are existing bugs that I believe will interact poorly with using reprogram_pmi
more agressively. Nothing major, but I'd prefer to get everything squared away
before merging, and definitely want your input on my proposed fixes. I'll post
the patches shortly.
next prev parent reply other threads:[~2022-09-22 22:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 8:53 [PATCH v3 0/7] x86/pmu: Corner cases fixes and optimization Like Xu
2022-08-31 8:53 ` [PATCH v3 1/7] KVM: x86/pmu: Avoid setting BIT_ULL(-1) to pmu->host_cross_mapped_mask Like Xu
2022-09-22 22:30 ` Sean Christopherson
2022-08-31 8:53 ` [PATCH v3 2/7] KVM: x86/pmu: Don't generate PEBS records for emulated instructions Like Xu
2022-08-31 8:53 ` [PATCH v3 3/7] KVM: x86/pmu: Avoid using PEBS perf_events for normal counters Like Xu
2022-09-22 22:35 ` Sean Christopherson
2022-08-31 8:53 ` [PATCH v3 4/7] KVM: x86/pmu: Defer reprogram_counter() to kvm_pmu_handle_event() Like Xu
2022-09-22 23:18 ` Sean Christopherson
2022-08-31 8:53 ` [PATCH v3 5/7] KVM: x86/pmu: Defer counter emulated overflow via pmc->prev_counter Like Xu
2022-09-22 23:59 ` Sean Christopherson
2022-10-14 8:08 ` Like Xu
2022-08-31 8:53 ` [PATCH v3 6/7] KVM: x86/svm/pmu: Direct access pmu->gp_counter[] to implement amd_*_to_pmc() Like Xu
2022-08-31 8:53 ` [PATCH v3 7/7] KVM: x86/svm/pmu: Rewrite get_gp_pmc_amd() for more counters scalability Like Xu
2022-09-07 9:52 ` [PATCH v3 0/7] x86/pmu: Corner cases fixes and optimization Like Xu
2022-09-19 8:58 ` Like Xu
2022-09-22 22:29 ` Sean Christopherson [this message]
2022-09-22 23:11 ` Sean Christopherson
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