[PATCH v2 0/2] KVM: arm64: PMU event filtering fixes

Oliver Upton <oliver.upton@xxxxxxxxx> · Fri, 13 Oct 2023 05:28:59 +0000

Set of fixes to KVM's handling of the exception level event filtering in
the PMU event type registers.

I dropped the PMU+NV disablement this time around as we need a complete
fix for that problem. At the same time, I want to get a rework of our
sysreg masks upstream soon to avoid any negative interaction with new
PMU features going in on the driver side of things.

Additionally, I added a fix for the non-secure filtering bits that
Suzuki had spotted (thanks!)

Oliver Upton (2):
  KVM: arm64: Treat PMEVTYPER<n>_EL0.NSH as RES0
  KVM: arm64: Virtualise PMEVTYPER<n>_EL1.{NSU,NSK}

 arch/arm64/kvm/pmu-emul.c      | 26 +++++++++++++++++---------
 arch/arm64/kvm/sys_regs.c      |  8 ++++++--
 include/kvm/arm_pmu.h          |  5 +++++
 include/linux/perf/arm_pmuv3.h |  8 +++++---
 4 files changed, 33 insertions(+), 14 deletions(-)

base-commit: 6465e260f48790807eef06b583b38ca9789b6072
-- 
2.42.0.655.g421f12c284-goog