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x86: Add GDT descriptors for option ROMs

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Option ROMs require a few additional descriptors. Add these, and remove the
enum since we now have to access several descriptors from assembler.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2014-11-14 20:56:29 -07:00
parent 176bf4ce0c
commit e34aef1de3
2 changed files with 17 additions and 21 deletions
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29
arch/x86/include/asm/processor.h
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@ -8,25 +8,18 @@
#ifndef __ASM_PROCESSOR_H_
#define __ASM_PROCESSOR_H_ 1
#define X86_GDT_ENTRY_SIZE 8
#define X86_GDT_ENTRY_SIZE 8
#ifndef __ASSEMBLY__
enum {
X86_GDT_ENTRY_NULL = 0,
X86_GDT_ENTRY_UNUSED,
X86_GDT_ENTRY_32BIT_CS,
X86_GDT_ENTRY_32BIT_DS,
X86_GDT_ENTRY_32BIT_FS,
X86_GDT_ENTRY_16BIT_CS,
X86_GDT_ENTRY_16BIT_DS,
X86_GDT_NUM_ENTRIES
};
#else
/* NOTE: If the above enum is modified, this define must be checked */
#define X86_GDT_ENTRY_32BIT_DS 3
#define X86_GDT_NUM_ENTRIES 7
#endif
#define X86_GDT_ENTRY_NULL 0
#define X86_GDT_ENTRY_UNUSED 1
#define X86_GDT_ENTRY_32BIT_CS 2
#define X86_GDT_ENTRY_32BIT_DS 3
#define X86_GDT_ENTRY_32BIT_FS 4
#define X86_GDT_ENTRY_16BIT_CS 5
#define X86_GDT_ENTRY_16BIT_DS 6
#define X86_GDT_ENTRY_16BIT_FLAT_CS 7
#define X86_GDT_ENTRY_16BIT_FLAT_DS 8
#define X86_GDT_NUM_ENTRIES 9
#define X86_GDT_SIZE (X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)