>>> On 12.09.16 at 10:47, <andrew.coop...@citrix.com> wrote: > c/s 350bc1a9d4 "x86: support newer Intel CPU models" changed the set of > MSRs read by Xeon Broadwell hardware (specifically, model 79 / 0x47). > > Rereading the manual, it does indeed indicate that this MSR is available. > > However, experimentally it is not. All Broadwell hardware XenServer has > (both SDPs and production systems) reliably take a #GP fault when trying > to read this MSR. Haswell hardware appears fine (and indeed, was > reading that MSR before). > > Intel: Please can you confirm whether the documentation is correct? If > it is, do you have any idea why the MSR might not be available? I can't > spot anything relevant in the platform errata documents.
And indeed I had requested this same information already well over a week ago, without having heard back. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
