On 15/02/2020 10:28 am, Marc Zyngier wrote:
On Fri, 14 Feb 2020 22:01:01 +,
Robin Murphy wrote:
Hi Robin,
Hi Marc,
On 2020-02-14 6:36 pm, Marc Zyngier wrote:
[...]
@@ -585,6 +585,14 @@ static void kvm_pmu_create_perf_event(struct kvm_vcpu
*vcpu, u64 select_idx)
pmc->idx
On Fri, 14 Feb 2020 22:01:01 +,
Robin Murphy wrote:
Hi Robin,
>
> Hi Marc,
>
> On 2020-02-14 6:36 pm, Marc Zyngier wrote:
> [...]
> > @@ -585,6 +585,14 @@ static void kvm_pmu_create_perf_event(struct kvm_vcpu
> > *vcpu, u64 select_idx)
> > pmc->idx != ARMV8_PMU_CYCLE_IDX)
> >
Hi Marc,
On 2020-02-14 6:36 pm, Marc Zyngier wrote:
[...]
@@ -585,6 +585,14 @@ static void kvm_pmu_create_perf_event(struct kvm_vcpu
*vcpu, u64 select_idx)
pmc->idx != ARMV8_PMU_CYCLE_IDX)
return;
+ /*
+* If we have a filter in place and that the event
It can be desirable to expose a PMU to a guest, and yet not want the
guest to be able to count some of the implemented events (because this
would give information on shared resources, for example.
For this, let's extend the PMUv3 device API, and offer a way to setup a
bitmap of the allowed events
