On Wed, Dec 26, 2018 at 2:01 AM Wei Wang <wei.w.wang@xxxxxxxxx> wrote: > > The lbr stack is architecturally specific, for example, SKX has 32 lbr > stack entries while HSW has 16 entries, so a HSW guest running on a SKX > machine may not get accurate perf results. Currently, we forbid the > guest lbr enabling when the guest and host see different lbr stack > entries. How do you handle live migration?
