diff options
| -rw-r--r-- | arch/arm64/kvm/pmu-emul.c | 2 | ||||
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c index c146417b8178..50b6ba593a10 100644 --- a/arch/arm64/kvm/pmu-emul.c +++ b/arch/arm64/kvm/pmu-emul.c @@ -511,6 +511,8 @@ void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val) if (!kvm_vcpu_has_pmu(vcpu)) return; + __vcpu_sys_reg(vcpu, PMCR_EL0) = val; + if (val & ARMV8_PMU_PMCR_E) { kvm_pmu_enable_counter_mask(vcpu, __vcpu_sys_reg(vcpu, PMCNTENSET_EL0)); diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index bfe4f17232b3..1f80e17a6460 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -697,13 +697,15 @@ static bool access_pmcr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, return false; if (p->is_write) { - /* Only update writeable bits of PMCR */ + /* + * Only update writeable bits of PMCR (continuing into + * kvm_pmu_handle_pmcr() as well) + */ val = __vcpu_sys_reg(vcpu, PMCR_EL0); val &= ~ARMV8_PMU_PMCR_MASK; val |= p->regval & ARMV8_PMU_PMCR_MASK; if (!kvm_supports_32bit_el0()) val |= ARMV8_PMU_PMCR_LC; - __vcpu_sys_reg(vcpu, PMCR_EL0) = val; kvm_pmu_handle_pmcr(vcpu, val); kvm_vcpu_pmu_restore_guest(vcpu); } else { |