linux-kernel - [Part1 PATCH v5 02/22] x86, microcode: Use common get_ramdisk

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Message-Id: <1371128589-8953-3-git-send-email-tangchen@cn.fujitsu.com>
Date:	Thu, 13 Jun 2013 21:02:49 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	tglx@...utronix.de, mingo@...e.hu, hpa@...or.com,
	akpm@...ux-foundation.org, tj@...nel.org, trenn@...e.de,
	yinghai@...nel.org, jiang.liu@...wei.com, wency@...fujitsu.com,
	laijs@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	mgorman@...e.de, minchan@...nel.org, mina86@...a86.com,
	gong.chen@...ux.intel.com, vasilis.liaskovitis@...fitbricks.com,
	lwoodman@...hat.com, riel@...hat.com, jweiner@...hat.com,
	prarit@...hat.com
Cc:	x86@...nel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Fenghua Yu <fenghua.yu@...el.com>
Subject: [Part1 PATCH v5 02/22] x86, microcode: Use common get_ramdisk_{image|size}()

From: Yinghai Lu <yinghai@...nel.org>

In patch1, we change get_ramdisk_image() and get_ramdisk_size()
to global, so we can use them instead of using global variable
boot_params.

We need this to get correct ramdisk adress for 64bits bzImage
that initrd can be loaded above 4G by kexec-tools.

-v2: fix one typo that is found by Tang Chen

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Acked-by: Tejun Heo <tj@...nel.org>
Tested-by: Thomas Renninger <trenn@...e.de>
Reviewed-by: Tang Chen <tangchen@...fujitsu.com>
Tested-by: Tang Chen <tangchen@...fujitsu.com>
---
 arch/x86/kernel/microcode_intel_early.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/microcode_intel_early.c b/arch/x86/kernel/microcode_intel_early.c
index 2e9e128..54575a9 100644
--- a/arch/x86/kernel/microcode_intel_early.c
+++ b/arch/x86/kernel/microcode_intel_early.c
@@ -743,8 +743,8 @@ load_ucode_intel_bsp(void)
 	struct boot_params *boot_params_p;
 
 	boot_params_p = (struct boot_params *)__pa_nodebug(&boot_params);
-	ramdisk_image = boot_params_p->hdr.ramdisk_image;
-	ramdisk_size  = boot_params_p->hdr.ramdisk_size;
+	ramdisk_image = get_ramdisk_image(boot_params_p);
+	ramdisk_size  = get_ramdisk_size(boot_params_p);
 	initrd_start_early = ramdisk_image;
 	initrd_end_early = initrd_start_early + ramdisk_size;
 
@@ -753,8 +753,8 @@ load_ucode_intel_bsp(void)
 		(unsigned long *)__pa_nodebug(&mc_saved_in_initrd),
 		initrd_start_early, initrd_end_early, &uci);
 #else
-	ramdisk_image = boot_params.hdr.ramdisk_image;
-	ramdisk_size  = boot_params.hdr.ramdisk_size;
+	ramdisk_image = get_ramdisk_image(&boot_params);
+	ramdisk_size  = get_ramdisk_size(&boot_params);
 	initrd_start_early = ramdisk_image + PAGE_OFFSET;
 	initrd_end_early = initrd_start_early + ramdisk_size;
 
-- 
1.7.1

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