| 66,7 → 66,7 |
|---|
| #define DPL_KERNEL (PL_KERNEL<<5) |
| #define DPL_USER (PL_USER<<5) |
| |
| #define IO_MAP_BASE (104) |
| #define TSS_BASIC_SIZE 104 |
| |
| #ifndef __ASM__ |
| |
| 82,6 → 82,7 |
|---|
| unsigned granularity : 1; |
| unsigned base_24_31: 8; |
| } __attribute__ ((packed)); |
| typedef struct descriptor descriptor_t; |
| |
| struct tss_descriptor { |
| unsigned limit_0_15: 16; |
| 88,7 → 89,7 |
|---|
| unsigned base_0_15: 16; |
| unsigned base_16_23: 8; |
| unsigned type: 4; |
| unsigned : 1; |
| unsigned : 1; |
| unsigned dpl : 2; |
| unsigned present : 1; |
| unsigned limit_16_19: 4; |
| 99,6 → 100,7 |
|---|
| unsigned base_32_63 : 32; |
| unsigned : 32; |
| } __attribute__ ((packed)); |
| typedef struct tss_descriptor tss_descriptor_t; |
| |
| struct idescriptor { |
| unsigned offset_0_15: 16; |
| 112,16 → 114,19 |
|---|
| unsigned offset_32_63: 32; |
| unsigned : 32; |
| } __attribute__ ((packed)); |
| typedef struct idescriptor idescriptor_t; |
| |
| struct ptr_16_64 { |
| __u16 limit; |
| __u64 base; |
| } __attribute__ ((packed)); |
| typedef struct ptr_16_64 ptr_16_64_t; |
| |
| struct ptr_16_32 { |
| __u16 limit; |
| __u32 base; |
| } __attribute__ ((packed)); |
| typedef struct ptr_16_32 ptr_16_32_t; |
| |
| struct tss { |
| __u32 reserve1; |
| 141,25 → 146,26 |
|---|
| __u16 iomap_base; |
| __u8 iomap[0x10000 + 1]; /* 64K + 1 terminating byte */ |
| } __attribute__ ((packed)); |
| typedef struct tss tss_t; |
| |
| extern struct tss *tss_p; |
| extern tss_t *tss_p; |
| |
| extern struct descriptor gdt[]; |
| extern struct idescriptor idt[]; |
| extern descriptor_t gdt[]; |
| extern idescriptor_t idt[]; |
| |
| extern struct ptr_16_64 gdtr; |
| extern struct ptr_16_32 bootstrap_gdtr; |
| extern struct ptr_16_32 protected_ap_gdtr; |
| extern ptr_16_64_t gdtr; |
| extern ptr_16_32_t bootstrap_gdtr; |
| extern ptr_16_32_t protected_ap_gdtr; |
| |
| extern void pm_init(void); |
| |
| extern void gdt_tss_setbase(struct descriptor *d, __address base); |
| extern void gdt_tss_setlimit(struct descriptor *d, __u32 limit); |
| extern void gdt_tss_setbase(descriptor_t *d, __address base); |
| extern void gdt_tss_setlimit(descriptor_t *d, __u32 limit); |
| |
| extern void idt_init(void); |
| extern void idt_setoffset(struct idescriptor *d, __address offset); |
| extern void idt_setoffset(idescriptor_t *d, __address offset); |
| |
| extern void tss_initialize(struct tss *t); |
| extern void tss_initialize(tss_t *t); |
| |
| #endif /* __ASM__ */ |
| |