diff options
| author | Wei Huang <wei@redhat.com> | 2016-10-28 14:12:31 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-10-28 15:51:27 +0100 |
| commit | 929e754d5a621cd53f30e69b766ccf381b58d124 (patch) | |
| tree | c45dfc88a52151503499de05df746d39e7c3d99b /target-arm/cpu64.c | |
| parent | d1df5cf3634af7003951d23164f349e360ecb601 (diff) | |
arm: Add an option to turn on/off vPMU support
This patch adds a pmu=[on/off] option to enable/disable vPMU support
in guest vCPU. It allows virt tools, such as libvirt, to determine the
exsitence of vPMU and configure it. Note this option is only available
for cortex-a57/cortex-53/ host CPUs, but unavailable on ARMv7 and other
processors. Also even though "pmu=" option is available for TCG mode,
setting it doesn't turn PMU on.
Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1477463301-17175-2-git-send-email-wei@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/cpu64.c')
| -rw-r--r-- | target-arm/cpu64.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target-arm/cpu64.c b/target-arm/cpu64.c index 1635debc1a..549cb1ee93 100644 --- a/target-arm/cpu64.c +++ b/target-arm/cpu64.c @@ -111,6 +111,7 @@ static void aarch64_a57_initfn(Object *obj) set_feature(&cpu->env, ARM_FEATURE_V8_PMULL); set_feature(&cpu->env, ARM_FEATURE_CRC); set_feature(&cpu->env, ARM_FEATURE_EL3); + set_feature(&cpu->env, ARM_FEATURE_PMU); cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A57; cpu->midr = 0x411fd070; cpu->revidr = 0x00000000; @@ -166,6 +167,7 @@ static void aarch64_a53_initfn(Object *obj) set_feature(&cpu->env, ARM_FEATURE_V8_PMULL); set_feature(&cpu->env, ARM_FEATURE_CRC); set_feature(&cpu->env, ARM_FEATURE_EL3); + set_feature(&cpu->env, ARM_FEATURE_PMU); cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A53; cpu->midr = 0x410fd034; cpu->revidr = 0x00000000; |