On Wed, 3 Nov 2021 at 17:17, Like Xu [off-list ref] wrote:

From: Like Xu <redacted>

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.

Reported-by: Wanpeng Li <redacted>
Fixes: 097e4311cda9 ("perf/x86: Add constraint to create guest LBR event without hw counter")
Signed-off-by: Like Xu <redacted>

Tested-by: Wanpeng Li <redacted>