linux-kernel - [tip:x86/microcode] x86/head64.c: Early update ucode in 64-bit

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Message-ID: <tip-feddc9de8bf69415da6f96eca0219186b70d145a@git.kernel.org>
Date:	Thu, 31 Jan 2013 14:35:52 -0800
From:	tip-bot for Fenghua Yu <fenghua.yu@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	fenghua.yu@...el.com, tglx@...utronix.de, hpa@...ux.intel.com
Subject: [tip:x86/microcode] x86/head64.c: Early update ucode in 64-bit

Commit-ID:  feddc9de8bf69415da6f96eca0219186b70d145a
Gitweb:     http://git.kernel.org/tip/feddc9de8bf69415da6f96eca0219186b70d145a
Author:     Fenghua Yu <fenghua.yu@...el.com>
AuthorDate: Thu, 20 Dec 2012 23:44:30 -0800
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Thu, 31 Jan 2013 13:20:24 -0800

x86/head64.c: Early update ucode in 64-bit

This updates ucode on BSP in 64-bit mode. Paging and virtual address are
working now.

Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
Link: http://lkml.kernel.org/r/1356075872-3054-11-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
---
 arch/x86/kernel/head64.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 57334f4..3ff3570 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -26,6 +26,7 @@
 #include <asm/e820.h>
 #include <asm/bios_ebda.h>
 #include <asm/bootparam_utils.h>
+#include <asm/microcode.h>
 
 /*
  * Manage page tables very early on.
@@ -170,6 +171,11 @@ void __init x86_64_start_kernel(char * real_mode_data)
 
 	copy_bootdata(__va(real_mode_data));
 
+	/*
+	 * Load microcode early on BSP.
+	 */
+	load_ucode_bsp();
+
 	if (console_loglevel == 10)
 		early_printk("Kernel alive\n");
 
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