From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752646Ab2JAPgu (ORCPT ); Mon, 1 Oct 2012 11:36:50 -0400 Received: from mail-we0-f174.google.com ([74.125.82.174]:64266 "EHLO mail-we0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752136Ab2JAPgs (ORCPT ); Mon, 1 Oct 2012 11:36:48 -0400 Date: Mon, 1 Oct 2012 17:36:43 +0200 From: Ingo Molnar To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, "H. Peter Anvin" , Thomas Gleixner , Andrew Morton , Borislav Petkov Subject: Re: [GIT PULL] x86/microcode changes for v3.7 Message-ID: <20121001153643.GA25751@gmail.com> References: <20121001142439.GA24959@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121001142439.GA24959@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > Linus, > > Please pull the latest x86-microcode-for-linus git tree from: > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-microcode-for-linus > > HEAD: bd13178169d5fd17da3221b55ba313270393649a Merge tag 'microcode_fix_3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/microcode > > The biggest changes are to AMD microcode patching: add code > for caching all microcode patches which belong to the current > family on which we're running, in the kernel. We look up the > patch needed for each core from the cache at patch-application > time instead of holding a single patch per-system. Something I forgot to mention: doing it this way is beneficial for suspend/resume and is generally the modern way of doing a self-sufficient in-kernel driver. The natural next step will be to extend this approach to Intel CPUs (there's nothing inherently AMD specific about it) - that is still work in progress and was not ready for this merge window. Just in case someone is wondering. Thanks, Ingo