Re: [PATCH v8 04/13] KVM: arm64: PMU: Set PMCR_EL0.N for vCPU based on the associated PMU

[Oliver Upton <oliver.upton@xxxxxxxxx>]

On Fri, Oct 20, 2023 at 09:40:44PM +0000, Raghavendra Rao Ananta wrote:

[...]

> +int kvm_arm_pmu_get_max_counters(struct kvm *kvm)
> +{
> +	struct arm_pmu *arm_pmu = kvm->arch.arm_pmu;
> +
> +	lockdep_assert_held(&kvm->arch.config_lock);

This lockdep assertion is misleading. Readers of kvm_arch::arm_pmu *are
not* serialized by the config_lock.

-- 
Thanks,
Oliver