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Subject[tip:x86/microcode] x86/head_32.S: Early update ucode in 32-bit
Commit-ID:  eadd948a43145b54b2da8ee4d83774ac2aa6ee02
Gitweb: http://git.kernel.org/tip/eadd948a43145b54b2da8ee4d83774ac2aa6ee02
Author: Fenghua Yu <fenghua.yu@intel.com>
AuthorDate: Thu, 29 Nov 2012 17:47:44 -0800
Committer: H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Fri, 30 Nov 2012 15:18:16 -0800

x86/head_32.S: Early update ucode in 32-bit

This updates ucode in 32-bit kernel. At this point, there is no paging and no
virtual address yet.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1354240068-9821-7-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
arch/x86/kernel/head_32.S | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 957a47a..b7b76a4 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -144,6 +144,12 @@ ENTRY(startup_32)
movl %eax, pa(olpc_ofw_pgd)
#endif

+#ifdef CONFIG_MICROCODE_EARLY
+ /* Early load ucode on BSP. */
+ movl $pa(boot_params), %eax
+ call load_ucode_bsp
+#endif
+
/*
* Initialize page tables. This creates a PDE and a set of page
* tables, which are located immediately beyond __brk_base. The variable

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