Messages in this thread | | | Date | Tue, 12 Jun 2012 19:17:34 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH] perf/x86: check ucode before disabling PEBS on SandyBridge |
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On Tue, Jun 12, 2012 at 07:13:23PM +0200, Peter Zijlstra wrote: > > That's what I had in my original version. > > Right, but you really need to check all cpus, not just the one you > happen to run on or the boot cpu.
Ok, the answer to that question is whether sandybridge can support mixed ucode revisions or not. If not, you only need to check the current cpu you're on.
-- Regards/Gruss, Boris.
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