Messages in this thread | | | From | Wanpeng Li <> | Date | Thu, 4 Nov 2021 10:35:35 +0800 | Subject | Re: [PATCH] perf/x86/vlbr: Add c->flags to vlbr event constraints |
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On Wed, 3 Nov 2021 at 17:17, Like Xu <like.xu.linux@gmail.com> wrote: > > From: Like Xu <likexu@tencent.com> > > 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 <wanpengli@tencent.com> > Fixes: 097e4311cda9 ("perf/x86: Add constraint to create guest LBR event without hw counter") > Signed-off-by: Like Xu <likexu@tencent.com>
Tested-by: Wanpeng Li <wanpengli@tencent.com>
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