KVM: Expose a version 2 architectural PMU to a guests
Use perf_events to emulate an architectural PMU, version 2.
Based on PMU version 1 emulation by Avi Kivity.
[avi: adjust for cpuid.c]
[jan: fix anonymous field initialization for older gcc]
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index ca63032..e70be46 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -45,6 +45,8 @@
else
apic->lapic_timer.timer_mode_mask = 1 << 17;
}
+
+ kvm_pmu_cpuid_update(vcpu);
}
static int is_efer_nx(void)