On Wed, May 22, 2019 at 11:06 AM Andriy Gapon <avg at freebsd.org> wrote: > > On 22/05/2019 16:44, Andrew Gallatin wrote: > > This is needed for AMD SMCA processors, as SMCA uses different > > MSR address for access MCA banks. > > Just curious, what is SMCA? Scalable MCA. It's a set of AMD Fam17h MCA extensions. Best, Conrad