>>> On 16.01.18 at 22:11, <andrew.coop...@citrix.com> wrote: > An alternative to the current levelling logic would be to treat STIBP as > a Special Bit (in CPUID terms, like OSXSAVE/etc) and unconditionally set > it equal to IBRS, irrespective of the toolstack setting. That way, > migration between HT and non-HT hardware is safe and a VM which chooses > to use STIBP will work even on non-HT hardware which simply ignores the > request.
Wouldn't that overall result in simpler code anyway? Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
