On 17-06-06 01:45:11, Jan Beulich wrote: > >>> On 02.06.17 at 09:26, <yi.y....@linux.intel.com> wrote: > > On 17-05-31 03:37:48, Jan Beulich wrote: > >> >>> On 03.05.17 at 10:44, <yi.y....@linux.intel.com> wrote: > >> > + /* Cut half of cos_max when CDP is enabled. */ > >> > + feat->cos_max >>= 1; > >> > + > >> > + /* We only write mask1 since mask0 is always all ones by > >> > default. */ > >> > >> Is this, btw, just reset state or even guaranteed after offlining > >> and re-onlining a CPU? > >> > > Below MSRs are all per socket. So, we just need reset them when socket is > > online. > > Which I hope you've understood then means the comment and > presumably also the code here need further refinement. > Spec states it below. So, the mask0 is guranteed. "the default mask in IA32_L3_MASK_0 - which is all “1”s (on reset)"
> Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
