[PATCH v3 0/5] target/arm/kvm: Report PMU unavailability

[Akihiko Odaki]

target/arm/kvm.c checked PMU availability but claimed PMU is
available even if it is not. In fact, Asahi Linux supports KVM but lacks
PMU support. Only advertise PMU availability only when it is really
available.

Fixes: dc40d45ebd8e ("target/arm/kvm: Move kvm_arm_get_host_cpu_features and 
unexport")

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
Changes in v3:
- Dropped patch "target/arm: Do not allow setting 'pmu' for hvf".
- Dropped patch "target/arm: Allow setting 'pmu' only for host and max".
- Dropped patch "target/arm/kvm: Report PMU unavailability".
- Added patch "target/arm/kvm: Fix PMU feature bit early".
- Added patch "hvf: arm: Do not advance PC when raising an exception".
- Added patch "hvf: arm: Properly disable PMU".
- Changed to check for Armv8 before adding PMU property.
- Link to v2: 
20240716-pmu-v2-0-f3e3e4b2d3d5@daynix.com">https://lore.kernel.org/r/20240716-pmu-v2-0-f3e3e4b2d3d5@daynix.com

Changes in v2:
- Restricted writes to 'pmu' to host and max.
- Prohibited writes to 'pmu' for hvf.
- Link to v1: 
https://lore.kernel.org/r/20240629-pmu-v1-0-7269123b88a4@daynix.com

---
Akihiko Odaki (5):
      tests/arm-cpu-features: Do not assume PMU availability
      target/arm/kvm: Fix PMU feature bit early
      target/arm: Always add pmu property for Armv8
      hvf: arm: Do not advance PC when raising an exception
      hvf: arm: Properly disable PMU

 target/arm/cpu.c               |   3 +-
 target/arm/hvf/hvf.c           | 318 +++++++++++++++++++++--------------------
 target/arm/kvm.c               |   7 +-
 tests/qtest/arm-cpu-features.c |  13 +-
 4 files changed, 175 insertions(+), 166 deletions(-)
---
base-commit: f2cb4026fccfe073f84a4b440e41d3ed0c3134f6
change-id: 20240629-pmu-ad5f67e2c5d0

Best regards,
-- 
Akihiko Odaki <akihiko.odaki@daynix.com>