| 108,10 → 108,11 |
|---|
| { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } |
| }; |
| |
| struct ptr_16_64 gdtr = {.limit = sizeof(gdtr), .base= (__u64)KA2PA(&gdt) }; |
| |
| struct idescriptor idt[IDT_ITEMS]; |
| |
| struct ptr_16_64 gdtr = {.limit = sizeof(gdt), .base= (__u64) &gdt }; |
| struct ptr_16_64 idtr = {.limit = sizeof(idt), .base= (__u64) &idt }; |
| |
| static struct tss tss; |
| struct tss *tss_p = NULL; |
| |
| 216,7 → 217,7 |
|---|
| |
| void pm_init(void) |
| { |
| struct descriptor *gdt_p = (struct descriptor *) PA2KA(gdtr.base); |
| struct descriptor *gdt_p = (struct descriptor *) gdtr.base; |
| struct tss_descriptor *tss_desc; |
| |
| /* |
| 248,6 → 249,8 |
|---|
| gdt_tss_setbase(&gdt_p[TSS_DES], (__address) tss_p); |
| gdt_tss_setlimit(&gdt_p[TSS_DES], sizeof(struct tss) - 1); |
| |
| __asm__("lgdt %0" : : "m"(gdtr)); |
| __asm__("lidt %0" : : "m"(idtr)); |
| /* |
| * As of this moment, the current CPU has its own GDT pointing |
| * to its own TSS. We just need to load the TR register. |