>>> On 16.04.18 at 13:19, <andrew.coop...@citrix.com> wrote: > On 16/04/18 12:12, Jan Beulich wrote: >>>>> On 16.04.18 at 12:56, <andrew.coop...@citrix.com> wrote: >>> The behaviour of reserved bits in MSR_PRED_CMD changed between beta and >>> production microcode, and now raises a #GP fault for set reserved bits. >> Interesting - quite unfortunate a change. Plus - I can't find where this is >> being >> said. > > Its not, but the new behaviour can be demonstrated easily. Those with > the beta microcode can confirm that the old behaviour was to ignore. > > FWIW, ignoring reserved bits was always dubious, and I only implemented > it like that to match how hardware behaved. This new behaviour is far > more sane.
Fully agree - should have been that way from the beginning. Jan _______________________________________________ Xen-devel mailing list Xenfirstname.lastname@example.org https://lists.xenproject.org/mailman/listinfo/xen-devel