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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 <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>
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Fenghua Yu authored and H. Peter Anvin committed Jan 31, 2013
1 parent ec400dd commit 63b553c
Showing 1 changed file with 11 additions and 0 deletions.
11 changes: 11 additions & 0 deletions arch/x86/kernel/head_32.S
Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -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
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