>>> On 08.01.15 at 16:56, <t...@xen.org> wrote: > At 15:23 +0000 on 08 Jan (1420727005), Jan Beulich wrote: >> + if ( (value & EFER_LMSLE) && !cpu_has_lmsl ) >> + return 0; > > I see this bit has no CPUID flag, and the docs don't seem to suggest > that it would ever not be valid. Are there real CPUs where it can't > be set?
Yes, I'm afraid AMD introduced this subsequent to SVM, iirc upon VMware request. > My reviewed-by: stands anyway as this is an improvement over the > current code. Just wondering whether this needs to go on the list > of interesting edge cazses for Andrew's feature-levelling rewrite. Yes, dealing with this ought to be interesting. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
