From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758786Ab3B1XQU (ORCPT ); Thu, 28 Feb 2013 18:16:20 -0500 Received: from mail.skyhub.de ([78.46.96.112]:54574 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755535Ab3B1XQS (ORCPT ); Thu, 28 Feb 2013 18:16:18 -0500 Date: Fri, 1 Mar 2013 00:16:08 +0100 From: Borislav Petkov To: "H. Peter Anvin" Cc: Linus Torvalds , Fenghua Yu , "H. Peter Anvin" , Ingo Molnar , Linux Kernel Mailing List , Thomas Gleixner , Yinghai Lu Subject: Re: [GIT PULL] x86/microcode for v3.9-rc1 Message-ID: <20130228231608.GA17468@pd.tnic> Mail-Followup-To: Borislav Petkov , "H. Peter Anvin" , Linus Torvalds , Fenghua Yu , "H. Peter Anvin" , Ingo Molnar , Linux Kernel Mailing List , Thomas Gleixner , Yinghai Lu References: <201302220456.r1M4ua12006362@terminus.zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <201302220456.r1M4ua12006362@terminus.zytor.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 On Thu, Feb 21, 2013 at 08:56:36PM -0800, H. Peter Anvin wrote: > Hi Linus, > > This patchset lets us update the CPU microcode very, very early in > initialization if the BIOS fails to do so (never happens, right?) > This is handy for dealing with things like the Atom erratum where we > have to run without PSE because microcode loading happens too late. > > As I mentioned in the x86/mm push request it depends on that > infrastructure but it is otherwise a standalone feature. > > ---------------------------------------------------------------- > > The following changes since commit ac2cbab21f318e19bc176a7f38a120cec835220f: > > x86: Don't panic if can not alloc buffer for swiotlb (2013-01-29 19:36:53 -0800) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/microcode > > for you to fetch changes up to da76f64e7eb28b718501d15c1b79af560b7ca4ea: > > x86/Kconfig: Make early microcode loading a configuration feature (2013-01-31 13:20:42 -0800) > > ---------------------------------------------------------------- > > Fenghua Yu (12): > x86, doc: Documentation for early microcode loading > x86/microcode_intel.h: Define functions and macros for early loading ucode > x86/common.c: Make have_cpuid_p() a global function > x86/common.c: load ucode in 64 bit or show loading ucode info in 32 bit on AP > x86/microcode_core_early.c: Define interfaces for early loading ucode > x86/microcode_intel_lib.c: Early update ucode on Intel's CPU > x86/tlbflush.h: Define __native_flush_tlb_global_irq_disabled() > x86/microcode_intel_early.c: Early update ucode on Intel's CPU > x86/head_32.S: Early update ucode in 32-bit > x86/head64.c: Early update ucode in 64-bit > x86/mm/init.c: Copy ucode from initrd image to kernel memory > x86/Kconfig: Make early microcode loading a configuration feature Some strange build warnings I get here: arch/x86/kernel/microcode_intel_early.c: In function `get_matching_model_microcode.isra.3.constprop.9': arch/x86/kernel/microcode_intel_early.c:366:1: warning: the frame size of 1072 bytes is larger than 1024 bytes [-Wframe-larger-than=] arch/x86/kernel/microcode_intel_early.c: In function `save_mc_for_early': arch/x86/kernel/microcode_intel_early.c:550:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=] What's up? -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --