On Wed, Mar 10, 2021 at 7:24 AM Andi Kleen <[email protected]> wrote: > > The pebs_no_isolation optimization check is inverted. We want to disable > PEBS isolation when the microcode is at least the revision in the table, > not for older microcode. So remove the extra !. The original code was correct because of the double negative. A "good" CPU _has_ PEBS isolation. It's bad to have pebs_no_isolation.
- [PATCH] perf/x86/kvm: Fix inverted pebs_no_isolation check Andi Kleen
- Re: [PATCH] perf/x86/kvm: Fix inverted pebs_no_isolation ... Jim Mattson
