[PATCH v8 3/7] KVM: arm64: PMU: Pass the pPMU to kvm_map_pmu_event()
From: Akihiko Odaki <hidden>
Date: 2026-07-06 10:03:45
Also in:
kvm, kvmarm, linux-doc, linux-hardening, linux-kselftest, lkml
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
Replace the VM argument with the pPMU used for event creation. The current caller still passes the VM's default pPMU, but this removes the implicit lookup from kvm_map_pmu_event() so later changes can map events against the pPMU selected for an individual vCPU. Signed-off-by: Akihiko Odaki <redacted> --- arch/arm64/kvm/pmu-emul.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index 4e8c872b3e20..185ea3631eee 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c@@ -678,10 +678,8 @@ static bool kvm_pmc_counts_at_el2(struct kvm_pmc *pmc) return kvm_pmc_read_evtreg(pmc) & ARMV8_PMU_INCLUDE_EL2; } -static int kvm_map_pmu_event(struct kvm *kvm, unsigned int eventsel) +static int kvm_map_pmu_event(struct arm_pmu *pmu, unsigned int eventsel) { - struct arm_pmu *pmu = kvm->arch.arm_pmu; - /* * The CPU PMU likely isn't PMUv3; let the driver provide a mapping * for the guest's PMUv3 event ID.
@@ -733,7 +731,7 @@ static void kvm_pmu_create_perf_event(struct kvm_pmc *pmc) * Don't create an event if we're running on hardware that requires * PMUv3 event translation and we couldn't find a valid mapping. */ - eventsel = kvm_map_pmu_event(vcpu->kvm, eventsel); + eventsel = kvm_map_pmu_event(vcpu->kvm->arch.arm_pmu, eventsel); if (eventsel < 0) return;
--
2.55.0