Merge branch kvm-arm64/per-vcpu-host-pmu-data into kvmarm-master/next

Merge branch kvm-arm64/per-vcpu-host-pmu-data into kvmarm-master/next

* kvm-arm64/per-vcpu-host-pmu-data:
  : .
  : Pass the host PMU state in the vcpu to avoid the use of additional
  : shared memory between EL1 and EL2 (this obviously only applies
  : to nVHE and Protected setups).
  :
  : Patches courtesy of Fuad Tabba.
  : .
  KVM: arm64: pmu: Restore compilation when HW_PERF_EVENTS isn't selected
  KVM: arm64: Reenable pmu in Protected Mode
  KVM: arm64: Pass pmu events to hyp via vcpu
  KVM: arm64: Repack struct kvm_pmu to reduce size
  KVM: arm64: Wrapper for getting pmu_events

Signed-off-by: Marc Zyngier <maz@kernel.org>