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Annotation of qemu/roms/openbios/arch/x86/segment.h, revision 1.1.1.1

1.1       root        1: 
                      2: /* Segment indexes. Must match the gdt definition in segment.c. */
                      3: enum {
                      4:     NULL_SEG,
                      5:     FLAT_CODE,
                      6:     FLAT_DATA,
                      7:     RELOC_CODE,
                      8:     RELOC_DATA,
                      9:     NUM_SEG,
                     10: };
                     11: 
                     12: /* Values for segment selector register */
                     13: #define FLAT_CS (FLAT_CODE << 3)
                     14: #define FLAT_DS (FLAT_DATA << 3)
                     15: #define RELOC_CS (RELOC_CODE << 3)
                     16: #define RELOC_DS (RELOC_DATA << 3)
                     17: 
                     18: /* i386 segment descriptor */
                     19: struct segment_desc {
                     20:     unsigned short limit_0;
                     21:     unsigned short base_0;
                     22:     unsigned char base_16;
                     23:     unsigned char types;
                     24:     unsigned char flags;
                     25:     unsigned char base_24;
                     26: };
                     27: 
                     28: extern struct segment_desc gdt[NUM_SEG];
                     29: 
                     30: #define GDT_LIMIT ((NUM_SEG << 3) - 1)

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