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KVM: x86/pmu: Do a single atomic OR when reprogramming counters
authorYosry Ahmed <yosry@kernel.org>
Wed, 27 May 2026 23:47:01 +0000 (23:47 +0000)
committerSean Christopherson <seanjc@google.com>
Thu, 28 May 2026 01:45:49 +0000 (18:45 -0700)
commite48810e06f45251a56bc007485854112e6cfc430
tree980e8600c660a9c7dfd10fbb2cb2a4227e546081tree | snapshot
parent103cd7deda589c47f10cdf0f65cae21dbca35b9ccommit | diff
KVM: x86/pmu: Do a single atomic OR when reprogramming counters

Do a single atomic OR using the atomic overlay of reprogram_pmi bitmask,
instead of one atomic set_bit() call per counter.

Signed-off-by: Yosry Ahmed <yosry@kernel.org>
Link: https://patch.msgid.link/20260527234711.4175166-8-yosry@kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
arch/x86/kvm/pmu.h diff | blob | blame | history
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