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

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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 <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: H. Peter Anvin <[email protected]>
This commit is contained in:
Fenghua Yu 2012-12-20 23:44:29 -08:00 • committed by H. Peter Anvin
commit 63b553c68d
1 changed files with 11 additions and 0 deletions
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11
arch/x86/kernel/head_32.S
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@ -144,6 +144,11 @@ ENTRY(startup_32)
movl %eax, pa(olpc_ofw_pgd)
#endif
#ifdef CONFIG_MICROCODE_EARLY
/* Early load ucode on BSP. */
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
@ -299,6 +304,12 @@ ENTRY(startup_32_smp)
movl %eax,%ss
leal -__PAGE_OFFSET(%ecx),%esp
#ifdef CONFIG_MICROCODE_EARLY
/* Early load ucode on AP. */
call load_ucode_ap
#endif
default_entry:
/*
* New page tables may be in 4Mbyte page mode and may