lkml.org 
[lkml]   [2012]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [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


\
 
 \ /
  Last update: 2012-06-12 23:42    [W:0.431 / U:0.236 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site