On 2025-05-21 3:55 p.m., Namhyung Kim wrote:
> On Mon, Mar 24, 2025 at 05:30:45PM +, Mingwei Zhang wrote:
>> From: Kan Liang
>>
>> Only KVM knows the exact time when a guest is entering/exiting. Expose
>> two interfaces to KVM to switch the ownership of the PMU resources.
>>
>> All the pinn
On Mon, Mar 24, 2025 at 05:30:45PM +, Mingwei Zhang wrote:
> From: Kan Liang
>
> Only KVM knows the exact time when a guest is entering/exiting. Expose
> two interfaces to KVM to switch the ownership of the PMU resources.
>
> All the pinned events must be scheduled in first. Extend the
> per
On 2025-05-15 3:25 p.m., Sean Christopherson wrote:
> On Thu, May 15, 2025, Kan Liang wrote:
>> On 2025-05-14 7:19 p.m., Sean Christopherson wrote:
This naming is confusing on purpose? Pick either guest/host and stick
with it.
>>>
>>> +1. I also think the inner perf_host_{enter,exit}(
On Thu, May 15, 2025, Kan Liang wrote:
> On 2025-05-14 7:19 p.m., Sean Christopherson wrote:
> >> This naming is confusing on purpose? Pick either guest/host and stick
> >> with it.
> >
> > +1. I also think the inner perf_host_{enter,exit}() helpers are superflous.
> > These flows
> >
> > After
On 2025-05-14 7:19 p.m., Sean Christopherson wrote:
> On Fri, Apr 25, 2025, Peter Zijlstra wrote:
>> On Mon, Mar 24, 2025 at 05:30:45PM +, Mingwei Zhang wrote:
>>
>>> @@ -6040,6 +6041,71 @@ void perf_put_mediated_pmu(void)
>>> }
>>> EXPORT_SYMBOL_GPL(perf_put_mediated_pmu);
>>>
>>> +stat
On 5/15/2025 7:19 AM, Sean Christopherson wrote:
> On Fri, Apr 25, 2025, Peter Zijlstra wrote:
>> On Mon, Mar 24, 2025 at 05:30:45PM +, Mingwei Zhang wrote:
>>
>>> @@ -6040,6 +6041,71 @@ void perf_put_mediated_pmu(void)
>>> }
>>> EXPORT_SYMBOL_GPL(perf_put_mediated_pmu);
>>>
>>> +static i
On Fri, Apr 25, 2025, Peter Zijlstra wrote:
> On Mon, Mar 24, 2025 at 05:30:45PM +, Mingwei Zhang wrote:
>
> > @@ -6040,6 +6041,71 @@ void perf_put_mediated_pmu(void)
> > }
> > EXPORT_SYMBOL_GPL(perf_put_mediated_pmu);
> >
> > +static inline void perf_host_exit(struct perf_cpu_context *cpu
On Mon, Mar 24, 2025 at 05:30:45PM +, Mingwei Zhang wrote:
> @@ -6040,6 +6041,71 @@ void perf_put_mediated_pmu(void)
> }
> EXPORT_SYMBOL_GPL(perf_put_mediated_pmu);
>
> +static inline void perf_host_exit(struct perf_cpu_context *cpuctx)
> +{
> + perf_ctx_disable(&cpuctx->ctx, EVENT_GUE
From: Kan Liang
Only KVM knows the exact time when a guest is entering/exiting. Expose
two interfaces to KVM to switch the ownership of the PMU resources.
All the pinned events must be scheduled in first. Extend the
perf_event_sched_in() helper to support extra flag, e.g., EVENT_GUEST.
Signed-o
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