target/arm/cpu: Ensure we can use the pmu with kvm
We first convert the pmu property from a static property to one with
its own accessors. Then we use the set accessor to check if the PMU is
supported when using KVM. Indeed a 32-bit KVM host does not support
the PMU, so this check will catch an attempt to use it at property-set
time.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index fe4f461..bfe3d44 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -162,6 +162,13 @@
env->features = arm_host_cpu_features.features;
}
+bool kvm_arm_pmu_supported(CPUState *cpu)
+{
+ KVMState *s = KVM_STATE(current_machine->accelerator);
+
+ return kvm_check_extension(s, KVM_CAP_ARM_PMU_V3);
+}
+
int kvm_arm_get_max_vm_ipa_size(MachineState *ms)
{
KVMState *s = KVM_STATE(ms->accelerator);
