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| author | Like Xu <likexu@tencent.com> | 2021-11-03 17:17:16 +0800 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-11-11 13:09:34 +0100 |
| commit | 5863702561e625903ec678551cb056a4b19e0b8a (patch) | |
| tree | 47384c41dbe7fec2d2f5c53ce93b9e1b1569f9b2 /kernel | |
| parent | 0fe39a3929ac7af980347814d552a734b51adacf (diff) | |
| download | lwn-5863702561e625903ec678551cb056a4b19e0b8a.tar.gz lwn-5863702561e625903ec678551cb056a4b19e0b8a.zip | |
perf/x86/vlbr: Add c->flags to vlbr event constraints
Just like what we do in the x86_get_event_constraints(), the
PERF_X86_EVENT_LBR_SELECT flag should also be propagated
to event->hw.flags so that the host lbr driver can save/restore
MSR_LBR_SELECT for the special vlbr event created by KVM or BPF.
Fixes: 097e4311cda9 ("perf/x86: Add constraint to create guest LBR event without hw counter")
Reported-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Like Xu <likexu@tencent.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Wanpeng Li <wanpengli@tencent.com>
Link: https://lore.kernel.org/r/20211103091716.59906-1-likexu@tencent.com
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions