Suzuki K Poulose writes:
On 27/01/2025 22:20, Colton Lewis wrote:
/* Disable all counters */
- armv8pmu_pmcr_write(armv8pmu_pmcr_read() & ~ARMV8_PMU_PMCR_E);
+ if (cpu_pmu->partitioned)
+ armv8pmu_mdcr_write(armv8pmu_pmcr_read() &
~ARMV8_PMU_MDCR_HPME);
ty
On 27/01/2025 22:20, Colton Lewis wrote:
If the PMU is partitioned, keep the driver out of the guest counter
partition and only use the host counter partition. Partitioning is
defined by the MDCR_EL2.HPMN register field and saved in
cpu_pmu->hpmn. The range 0..HPMN-1 is accessible by EL1 and EL0
If the PMU is partitioned, keep the driver out of the guest counter
partition and only use the host counter partition. Partitioning is
defined by the MDCR_EL2.HPMN register field and saved in
cpu_pmu->hpmn. The range 0..HPMN-1 is accessible by EL1 and EL0 while
HPMN..PMCR.N is reserved for EL2.
De
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