From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, Sean Christopherson <seanjc@google.com>,
Like Xu <like.xu.linux@gmail.com>,
Mingwei Zhang <mizhang@google.com>,
Zhenyu Wang <zhenyuw@linux.intel.com>,
Zhang Xiong <xiong.y.zhang@intel.com>,
Lv Zhiyuan <zhiyuan.lv@intel.com>,
Dapeng Mi <dapeng1.mi@intel.com>
Subject: [kvm-unit-tests PATCH 0/4] x86/pmu: PEBS fixes and new testcases
Date: Wed, 6 Mar 2024 15:01:49 -0800 [thread overview]
Message-ID: <20240306230153.786365-1-seanjc@google.com> (raw)
One bug fix where pmu_pebs attempts to enable PEBS for fixed counter on
CPUs without Extended PEBS, and two new testcases to verify adaptive
PEBS functionality.
The new testcases are intended both to demonstrate that adaptive PEBS
virtualization is currently broken, and to serve as a gatekeeper for
re-enabling adapative PEBS in the future.
https://lore.kernel.org/all/ZeepGjHCeSfadANM@google.com
Sean Christopherson (4):
x86/pmu: Enable PEBS on fixed counters iff baseline PEBS is support
x86/pmu: Iterate over adaptive PEBS flag combinations
x86/pmu: Test adaptive PEBS without any adaptive counters
x86/pmu: Add a PEBS test to verify the host LBRs aren't leaked to the
guest
lib/x86/pmu.h | 6 ++-
x86/pmu_pebs.c | 109 +++++++++++++++++++++++++++----------------------
2 files changed, 66 insertions(+), 49 deletions(-)
base-commit: 55dd01b4f066577b49f03fb7146723c4a65822c4
--
2.44.0.278.ge034bb2e1d-goog
next reply other threads:[~2024-03-06 23:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-06 23:01 Sean Christopherson [this message]
2024-03-06 23:01 ` [kvm-unit-tests PATCH 1/4] x86/pmu: Enable PEBS on fixed counters iff baseline PEBS is support Sean Christopherson
2024-03-07 9:22 ` Mi, Dapeng
2024-03-06 23:01 ` [kvm-unit-tests PATCH 2/4] x86/pmu: Iterate over adaptive PEBS flag combinations Sean Christopherson
2024-03-06 23:01 ` [kvm-unit-tests PATCH 3/4] x86/pmu: Test adaptive PEBS without any adaptive counters Sean Christopherson
2024-03-07 9:08 ` Like Xu
2024-03-07 9:28 ` Mi, Dapeng
2024-03-07 10:00 ` Mi, Dapeng
2024-03-06 23:01 ` [kvm-unit-tests PATCH 4/4] x86/pmu: Add a PEBS test to verify the host LBRs aren't leaked to the guest Sean Christopherson
2024-03-07 9:23 ` Like Xu
2024-03-07 9:31 ` Mi, Dapeng
2024-03-07 9:22 ` [kvm-unit-tests PATCH 0/4] x86/pmu: PEBS fixes and new testcases Mi, Dapeng
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