Re: [PATCH v4 09/38] perf: Add switch_guest_ctx() interface

On Mon, Mar 24, 2025 at 05:30:49PM +, Mingwei Zhang wrote: > From: Kan Liang > > When entering/exiting a guest, some contexts for a guest have to be > switched. For examples, there is a dedicated interrupt vector for > guests on Intel platforms. > > When PMI switch into a new guest vector, g

Re: [PATCH v4 09/38] perf: Add switch_guest_ctx() interface

On 5/15/2025 7:30 AM, Sean Christopherson wrote: > On Mon, Mar 24, 2025, Mingwei Zhang wrote: >> From: Kan Liang >> >> When entering/exiting a guest, some contexts for a guest have to be >> switched. For examples, there is a dedicated interrupt vector for >> guests on Intel platforms. >> >> When

Re: [PATCH v4 09/38] perf: Add switch_guest_ctx() interface

On Mon, Mar 24, 2025, Mingwei Zhang wrote: > From: Kan Liang > > When entering/exiting a guest, some contexts for a guest have to be > switched. For examples, there is a dedicated interrupt vector for > guests on Intel platforms. > > When PMI switch into a new guest vector, guest_lvtpc value nee

Re: [PATCH v4 09/38] perf: Add switch_guest_ctx() interface

On Mon, Mar 24, 2025 at 05:30:49PM +, Mingwei Zhang wrote: > @@ -1822,7 +1835,7 @@ extern int perf_event_period(struct perf_event *event, > u64 value); > extern u64 perf_event_pause(struct perf_event *event, bool reset); > int perf_get_mediated_pmu(void); > void perf_put_mediated_pmu(void)

[PATCH v4 09/38] perf: Add switch_guest_ctx() interface

From: Kan Liang When entering/exiting a guest, some contexts for a guest have to be switched. For examples, there is a dedicated interrupt vector for guests on Intel platforms. When PMI switch into a new guest vector, guest_lvtpc value need to be reflected onto HW, e,g., guest clear PMI mask bit