[tip:x86/mm] x86, microcode: Use common get_ramdisk_{image|size}()

[tip-bot for Yinghai Lu]

Commit-ID:  a795ab2d9c2113c63d2c9a0677012db13e746121
Gitweb:     http://git.kernel.org/tip/a795ab2d9c2113c63d2c9a0677012db13e746121
Author:     Yinghai Lu <yinghai@xxxxxxxxxx>
AuthorDate: Thu, 13 Jun 2013 21:02:49 +0800
Committer:  H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Fri, 14 Jun 2013 14:03:30 -0700

x86, microcode: Use common get_ramdisk_{image|size}()

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@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1371128589-8953-3-git-send-email-tangchen@xxxxxxxxxxxxxx
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Tested-by: Thomas Renninger <trenn@xxxxxxx>
Reviewed-by: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Tested-by: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
---
 arch/x86/kernel/microcode_intel_early.c | 8 ++++----
 1 file 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;
 
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