[PATCH 0/3] KVM: arm64: nv: Add EL2 PMU event filtering support

[Oliver Upton <oliver.upton@linux.dev>]

We allow a nested VM to be configured with a vPMU, although it isn't
entirely functional. We do not currently respect the EL2 event filter
configuration from the guest hypervisor, which really needs to be
applied to EL1 when in a hyp context.

Series to do just that. Tested on Neoverse-V2 which fortunately
implements PMUv3 and NV, unlike the fruity stuff I'm typically using...

Oliver Upton (3):
  KVM: arm64: Add helpers to determine if PMC counts at a given EL
  KVM: arm64: nv: Honor NSH filter when in hyp context
  KVM: arm64: nv: Reprogram PMU events affected by nested transition

 arch/arm64/kvm/emulate-nested.c |  4 ++
 arch/arm64/kvm/pmu-emul.c       | 77 ++++++++++++++++++++++++++++-----
 include/kvm/arm_pmu.h           |  3 ++
 3 files changed, 72 insertions(+), 12 deletions(-)


base-commit: 7c626ce4bae1ac14f60076d00eafe71af30450ba
-- 
2.46.0.295.g3b9ea8a38a-goog