On Fri, 15 Dec 2023 at 15:16, Jean-Philippe Brucker
wrote:
>
> MDCR_EL2.HPMN allows an hypervisor to limit the number of PMU counters
> available to EL1 and EL0 (to keep the others to itself). QEMU already
> implements this split correctly, except for PMCR_EL0.N reads: the number
> of counters rea
MDCR_EL2.HPMN allows an hypervisor to limit the number of PMU counters
available to EL1 and EL0 (to keep the others to itself). QEMU already
implements this split correctly, except for PMCR_EL0.N reads: the number
of counters read by EL1 or EL0 should be the one configured in
MDCR_EL2.HPMN.
Signed
