Messages in this thread | | | Date | Tue, 12 Jun 2012 23:04:36 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH] perf/x86: check ucode before disabling PEBS on SandyBridge |
| |
On Tue, Jun 12, 2012 at 01:58:23PM -0700, H. Peter Anvin wrote: > There is a difference here. Mixed steppings or even mixed CPUs are, > indeed, supported (even things like Nehalem + Westmere in the same > system). However, the notion is that we should upload the *entire set* > of microcodes to the kernel, and let it flash the appropriate one into > each CPU.
Sure, the ucode driver both on Intel and AMD does that already by looking at each patch in the blob. I'd expect no change to that functionality.
> This may result in different version number on different CPUs.
Ok, understood.
Thanks.
-- Regards/Gruss, Boris.
Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach GM: Alberto Bozzo Reg: Dornach, Landkreis Muenchen HRB Nr. 43632 WEEE Registernr: 129 19551
| |