Currently IBS driver doesn't allow the creation of IBS event with
exclue_guest set. As a result, amd_ibs_init() returns -EINVAL if
IBS event is created with exclude_guest set.
With the introduction of mediated PMU support, software-based handling
of exclude_guest is permitted for PMUs that have the
PERF_PMU_CAP_MEDIATED_VPMU capability.
Since ibs_op and ibs_fetch pmus has PERF_PMU_CAP_MEDIATED_VPMU
capability set, update perf_ibs_init() to remove exclude_guest check.
Signed-off-by: Manali Shukla <manali.shukla@xxxxxxx>
---
arch/x86/events/amd/ibs.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index 00c36ce16957..35dc5a578778 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -299,8 +299,7 @@ static int perf_ibs_init(struct perf_event *event)
return -EOPNOTSUPP;
/* handle exclude_{user,kernel} in the IRQ handler */
- if (event->attr.exclude_host || event->attr.exclude_guest ||
- event->attr.exclude_idle)
+ if (event->attr.exclude_host || event->attr.exclude_idle)
return -EINVAL;
if (!(event->attr.config2 & IBS_SW_FILTER_MASK) &&
--
2.43.0
