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x86: Add multi-processor init

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Most modern x86 CPUs include more than one CPU core. The OS normally requires
that these 'Application Processors' (APs) be brought up by the boot loader.
Add the required support to U-Boot to init additional APs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2015-04-29 22:25:59 -06:00
parent 6f41e0e7bc
commit 45b5a37836
11 changed files with 934 additions and 7 deletions
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3
arch/x86/include/asm/processor.h
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@ -23,6 +23,9 @@
#define X86_GDT_SIZE (X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)
/* Length of the public header on Intel microcode blobs */
#define UCODE_HEADER_LEN 0x30
#ifndef __ASSEMBLY__
/*