Commit-ID: b8f3111a12c190ab8228718e766dd2707b6fc8e0
Gitweb: http://git.kernel.org/tip/b8f3111a12c190ab8228718e766dd2707b6fc8e0
Author: Fenghua Yu <fenghua.yu@xxxxxxxxx>
AuthorDate: Thu, 29 Nov 2012 17:47:45 -0800
Committer: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Fri, 30 Nov 2012 15:18:16 -0800
x86/head64.c: Early update ucode in 64-bit
This updates ucode in 64-bit mode. Paging and virtual address are working now.
Signed-off-by: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1354240068-9821-8-git-send-email-fenghua.yu@xxxxxxxxx
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
---
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 037df57..a512f56 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -25,6 +25,7 @@
#include <asm/kdebug.h>
#include <asm/e820.h>
#include <asm/bios_ebda.h>
+#include <asm/microcode.h>
static void __init zap_identity_mappings(void)
{
@@ -73,6 +74,11 @@ void __init x86_64_start_kernel(char * real_mode_data)
/* clear bss before set_intr_gate with early_idt_handler */
clear_bss();
+ /*
+ * Load microcode early on BSP.
+ */
+ load_ucode_bsp(real_mode_data);
+
/* Make NULL pointers segfault */
zap_identity_mappings();
--
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