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authorFenghua Yu <fenghua.yu@intel.com>2012-12-21 02:44:29 -0500
committerH. Peter Anvin <hpa@linux.intel.com>2013-01-31 16:19:20 -0500
commit63b553c68db5a8d4febcd1010b194333d2b02e1c (patch)
tree4d9a882d51cb01090c74cc58a20af6a68cb64791 /arch/x86/kernel/head_32.S
parentec400ddeff200b068ddc6c70f7321f49ecf32ed5 (diff)
x86/head_32.S: Early update ucode in 32-bit
This updates ucode in 32-bit kernel on BSP and AP. 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/1356075872-3054-10-git-send-email-fenghua.yu@intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/head_32.S')
-rw-r--r--arch/x86/kernel/head_32.S11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 8e7f6556028f..2f705307c8d8 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -144,6 +144,11 @@ ENTRY(startup_32)
144 movl %eax, pa(olpc_ofw_pgd) 144 movl %eax, pa(olpc_ofw_pgd)
145#endif 145#endif
146 146
147#ifdef CONFIG_MICROCODE_EARLY
148 /* Early load ucode on BSP. */
149 call load_ucode_bsp
150#endif
151
147/* 152/*
148 * Initialize page tables. This creates a PDE and a set of page 153 * Initialize page tables. This creates a PDE and a set of page
149 * tables, which are located immediately beyond __brk_base. The variable 154 * tables, which are located immediately beyond __brk_base. The variable
@@ -299,6 +304,12 @@ ENTRY(startup_32_smp)
299 movl %eax,%ss 304 movl %eax,%ss
300 leal -__PAGE_OFFSET(%ecx),%esp 305 leal -__PAGE_OFFSET(%ecx),%esp
301 306
307#ifdef CONFIG_MICROCODE_EARLY
308 /* Early load ucode on AP. */
309 call load_ucode_ap
310#endif
311
312
302default_entry: 313default_entry:
303/* 314/*
304 * New page tables may be in 4Mbyte page mode and may 315 * New page tables may be in 4Mbyte page mode and may