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 lbrHow do you handle live migration?
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