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

[Peter Maydell]

On Tue, 16 Jul 2024 at 13:50, Akihiko Odaki <akihiko.odaki@daynix.com> wrote:
>
> 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

Hi; I've left reviews for some of these patches. I'm going to
apply "hvf: arm: Do not advance PC when raising an exception"
to my target-arm queue since I'm about to do a pullreq for
9.1 softfreeze.

thanks
-- PMM