josh/hos
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added mm_early_vpage_alloc(); kernel still crashing...

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git-svn-id: svn://anubis/hos/trunk@98 5b3e749e-e535-0410-8002-a9bb6afbdfca
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josh committed 2010-01-28 04:22:02 +00:00
1 parent 5ac343a2e8
commit d41ffbbedc
3 files changed
+22 -3
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kernel/isr/interrupts.cc
+6 -3
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@@ -49,8 +49,11 @@ void isr(u8_t int_num, int_stack_t * istack)
void interrupts_bootstrap()
{
u32_t idt_base = mm_page_alloc();
u64_t * idt = (u64_t *) (idt_base + KERNEL_OFFSET);
u32_t idt_phys = mm_page_alloc();
u32_t idt_virt = mm_early_vpage_alloc();
mm_map(idt_virt, idt_phys, 0, 1);
u64_t * idt = (u64_t *) idt_virt;
idt[0] = MAKE_IDT_DESCRIPTOR(KERNEL_CODE_SEGMENT, isr_0, 0);
idt[1] = MAKE_IDT_DESCRIPTOR(KERNEL_CODE_SEGMENT, isr_1, 0);
idt[2] = MAKE_IDT_DESCRIPTOR(KERNEL_CODE_SEGMENT, isr_2, 0);
@@ -101,7 +104,7 @@ void interrupts_bootstrap()
idt[47] = MAKE_IDT_DESCRIPTOR(KERNEL_CODE_SEGMENT, isr_47, 0);
idt[48] = MAKE_IDT_DESCRIPTOR(KERNEL_CODE_SEGMENT, isr_48, 0);
idt[49] = MAKE_IDT_DESCRIPTOR(KERNEL_CODE_SEGMENT, isr_49, 0);
idtr.base = idt_base;
idtr.base = idt_phys;
idtr.limit = 49 * sizeof(idt[0]) - 1;
__asm__ __volatile__ ("lidt (idtr)");
}