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Diffstat (limited to 'arch/arm64/kvm/pmu-emul.c')
-rw-r--r--arch/arm64/kvm/pmu-emul.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index fe99b3dab6..3d9467ff73 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -267,9 +267,8 @@ void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu)
u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu)
{
- u64 val = kvm_vcpu_read_pmcr(vcpu) >> ARMV8_PMU_PMCR_N_SHIFT;
+ u64 val = FIELD_GET(ARMV8_PMU_PMCR_N, kvm_vcpu_read_pmcr(vcpu));
- val &= ARMV8_PMU_PMCR_N_MASK;
if (val == 0)
return BIT(ARMV8_PMU_CYCLE_IDX);
else
@@ -1136,8 +1135,7 @@ u8 kvm_arm_pmu_get_pmuver_limit(void)
*/
u64 kvm_vcpu_read_pmcr(struct kvm_vcpu *vcpu)
{
- u64 pmcr = __vcpu_sys_reg(vcpu, PMCR_EL0) &
- ~(ARMV8_PMU_PMCR_N_MASK << ARMV8_PMU_PMCR_N_SHIFT);
+ u64 pmcr = __vcpu_sys_reg(vcpu, PMCR_EL0);
- return pmcr | ((u64)vcpu->kvm->arch.pmcr_n << ARMV8_PMU_PMCR_N_SHIFT);
+ return u64_replace_bits(pmcr, vcpu->kvm->arch.pmcr_n, ARMV8_PMU_PMCR_N);
}