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From: Andi Kleen <andi@firstfloor.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, eranian@google.com, peterz@infradead.org
Subject: Updated microcode tracking and PEBS workaround patchkit
Date: Wed, 13 Jun 2012 13:20:38 -0700	[thread overview]
Message-ID: <1339618842-26636-1-git-send-email-andi@firstfloor.org> (raw)

I addressed (most) of the review comments. The printk for mismatching
ucode is still there. And it's still walking all CPUs, but since that
happens in parallel it's not really exponentially longer delay.

There's a check now for mismatching model numbers and the
minimum ucode tracking is disabled for this case.

Also I implemented CPU loading earlier in the CPU notifier
for the microcode driver.

Also this actually fixes the code, it didn't work before for
hotplugged CPUs and didn't update the microcodes there.

-Andi


             reply	other threads:[~2012-06-13 20:20 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-13 20:20 Andi Kleen [this message]
2012-06-13 20:20 ` [PATCH 1/4] x86: Do microcode updates at CPU_STARTING, not CPU_ONLINE Andi Kleen
2012-06-14 11:00   ` Borislav Petkov
2012-06-14 13:54     ` Henrique de Moraes Holschuh
2012-06-13 20:20 ` [PATCH 2/4] x86: Track minimum microcode revision globally v2 Andi Kleen
2012-06-13 21:34   ` Peter Zijlstra
2012-06-13 21:39     ` Andi Kleen
2012-06-14  8:56       ` Ingo Molnar
2012-06-13 21:35   ` Peter Zijlstra
2012-06-13 21:51     ` Andi Kleen
2012-06-14  9:10   ` Borislav Petkov
2012-06-14 13:36     ` Andi Kleen
2012-06-14 12:20   ` Borislav Petkov
2012-06-14 12:37   ` Borislav Petkov
2012-06-13 20:20 ` [PATCH 3/4] perf, x86: check ucode before disabling PEBS on SandyBridge v3 Andi Kleen
2012-06-13 21:30   ` Peter Zijlstra
2012-06-13 21:34     ` Andi Kleen
2012-06-13 21:36       ` Peter Zijlstra
2012-06-13 22:34         ` Andi Kleen
2012-06-13 20:20 ` [PATCH 4/4] x86: Detect model/family mismatches for common microcode revision Andi Kleen
2012-06-14 18:02   ` Borislav Petkov

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