kern
diff src/segm.h @ 7:611b2d66420b
segment descriptors
author | John Tsiombikas <nuclear@member.fsf.org> |
---|---|
date | Wed, 16 Feb 2011 07:26:03 +0200 |
parents | |
children | 78d5c304ddd0 |
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/segm.h Wed Feb 16 07:26:03 2011 +0200 1.3 @@ -0,0 +1,21 @@ 1.4 +#ifndef SEGM_H_ 1.5 +#define SEGM_H_ 1.6 + 1.7 +#define SEGM_KCODE 1 1.8 +#define SEGM_KDATA 2 1.9 + 1.10 +typedef struct { 1.11 + uint16_t d[4]; 1.12 +} desc_t; 1.13 + 1.14 +void init_segm(void); 1.15 + 1.16 +uint16_t selector(int idx, int rpl); 1.17 + 1.18 +/* these functions are implemented in segm-asm.S */ 1.19 +void setup_selectors(uint16_t code, uint16_t data); 1.20 +void set_gdt(uint32_t addr, uint16_t limit); 1.21 + 1.22 + 1.23 + 1.24 +#endif /* SEGM_H_ */