On 05.06.2020 19:37, Andrew Cooper wrote: > On 05/06/2020 08:51, Jan Beulich wrote: >> Both match prior generation processors as far as LBR and C-state MSRs >> go (SDM rev 072) as well as applicability of the if_pschange_mc erratum >> (recent spec updates). >> >> Signed-off-by: Jan Beulich <jbeul...@suse.com> >> --- >> Such changes having been subject to backporting in the past, this >> change may want considering for 4.14. >> --- >> I'm leaving alone spec_ctrl.c, albeit there's a scary looking erratum >> for Ice Lake indicating that MDS_NO may wrongly be set. But this is >> apparently addressed by ucode update, so we may not need to deal with >> it in software. > > I've enquired about this. At a guess, there was another hole found, so > MDS_NO has been cleared and VERW flushing reinstated. > > Either way, changes there can wait until we've got confirmation. > > Acked-by: Andrew Cooper <andrew.coop...@citrix.com>
Paul - any thoughts about this one either way for 4.14? Jan
