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[v4,6/7] KVM: arm64: PMU: Reload PMCNTENSET_EL0

Message ID 20250313-pmc-v4-6-2c976827118c@daynix.com (mailing list archive)
State New
Headers show
Series KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs | expand

Commit Message

Akihiko Odaki March 13, 2025, 6:57 a.m. UTC 
Disable counters that are no longer included in PMCNTENSET_EL0. It is
not necessary to enable counters included in PMCNTENSET_EL0 because
kvm_pmu_handle_pmcr() does so if appropriate.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 arch/arm64/kvm/pmu-emul.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index 461c76a9cb6b..dfa7048a3e2a 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -835,6 +835,7 @@  void kvm_vcpu_reload_pmu(struct kvm_vcpu *vcpu)
 	__vcpu_sys_reg(vcpu, PMINTENSET_EL1) &= mask;
 	__vcpu_sys_reg(vcpu, PMCNTENSET_EL0) &= mask;
 
+	kvm_pmu_disable_counter_mask(vcpu, ~__vcpu_sys_reg(vcpu, PMCNTENSET_EL0));
 	kvm_pmu_handle_pmcr(vcpu, kvm_vcpu_read_pmcr(vcpu));
 }