>>> On 04.01.17 at 13:39, <andrew.coop...@citrix.com> wrote: > --- a/xen/arch/x86/traps.c > +++ b/xen/arch/x86/traps.c > @@ -1065,11 +1065,8 @@ void pv_cpuid(struct cpu_user_regs *regs) > uint32_t tmp; > > case 0x00000001: > - c &= pv_featureset[FEATURESET_1c]; > - d &= pv_featureset[FEATURESET_1d]; > - > - if ( is_pv_32bit_domain(currd) ) > - c &= ~cpufeat_mask(X86_FEATURE_CX16); > + c = p->basic._1c; > + d = p->basic._1d;
Being able to drop the clearing of CX16 is because it depends on LM, and LM gets cleared explicitly in recalculate_cpuid_policy(). If that's right (and intended that way), Reviewed-by: Jan Beulich <jbeul...@suse.com> Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
