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| author | Shannon Zhao <shannon.zhao@linaro.org> | 2016-01-11 15:46:15 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2016-02-29 19:34:21 +0100 |
| commit | 808e738142e7086ef793ebf9797099c392894e65 (patch) | |
| tree | 38c6f338451aca94c326fe5991fbf7fa13aeccc7 /arch/arm64/kvm | |
| parent | arm64: KVM: Free perf event of PMU when destroying vcpu (diff) | |
| download | linux-808e738142e7086ef793ebf9797099c392894e65.tar.xz linux-808e738142e7086ef793ebf9797099c392894e65.zip | |
arm64: KVM: Add a new feature bit for PMUv3
To support guest PMUv3, use one bit of the VCPU INIT feature array.
Initialize the PMU when initialzing the vcpu with that bit and PMU
overflow interrupt set.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/reset.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index dfbce781d284..cf4f28a7a514 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -77,6 +77,9 @@ int kvm_arch_dev_ioctl_check_extension(long ext) case KVM_CAP_GUEST_DEBUG_HW_WPS: r = get_num_wrps(); break; + case KVM_CAP_ARM_PMU_V3: + r = kvm_arm_support_pmu_v3(); + break; case KVM_CAP_SET_GUEST_DEBUG: r = 1; break; |