Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753915Ab2HRIbi (ORCPT ); Sat, 18 Aug 2012 04:31:38 -0400 Received: from mga02.intel.com ([134.134.136.20]:30395 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753134Ab2HRIaF (ORCPT ); Sat, 18 Aug 2012 04:30:05 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.77,790,1336374000"; d="scan'208";a="182264778" From: "Fenghua Yu" To: "H Peter Anvin" , "Ingo Molnar" , "Thomas Gleixner" , "Asit K Mallick" , "Tigran Aivazian" , "Andreas Herrmann" , "Borislav Petkov" , "linux-kernel" , "x86" Cc: "Fenghua Yu" Subject: [PATCH 09/11] x86/smpboot.c: Early update ucode on AP Date: Sat, 18 Aug 2012 01:15:27 -0700 Message-Id: <1345277729-8399-10-git-send-email-fenghua.yu@intel.com> X-Mailer: git-send-email 1.7.2 In-Reply-To: <1345277729-8399-1-git-send-email-fenghua.yu@intel.com> References: <1345277729-8399-1-git-send-email-fenghua.yu@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1312 Lines: 44 From: Fenghua Yu This updates ucode on AP. At this point, BSP should store some valid ucode patches in memory if it finds the ucode patches in initrd. AP searches the stored ucode and uploads the ucode. Signed-off-by: Fenghua Yu --- arch/x86/kernel/smpboot.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 7c5a8c3..c72e230 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -76,6 +76,7 @@ #include #include +#include /* State of each CPU */ DEFINE_PER_CPU(int, cpu_state) = { 0 }; @@ -239,6 +240,12 @@ notrace static void __cpuinit start_secondary(void *unused) * most necessary things. */ cpu_init(); + /* + * Load microcode on this cpu if a valid microcode is available. + * This is early microcode loading procedure. + */ + load_ucode_ap(); + x86_cpuinit.early_percpu_clock_init(); preempt_disable(); smp_callin(); -- 1.7.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/