47,10 → 47,12 |
|
call memmap_arch_init |
|
lgdt gdtr |
lgdt gdtr # initialize Global Descriptor Table register |
lidt idtr # initialize Interrupt Descriptor Table register |
|
movl %cr0,%eax |
orl $0x1,%eax |
movl %eax,%cr0 |
movl %eax,%cr0 # switch to protected mode |
jmpl $8,$meeting_point |
meeting_point: |
.code32 |
62,10 → 64,8 |
movw %ax,%ds # kernel data + stack |
movw %ax,%ss |
|
lidt idtr |
call map_kernel # map kernel and turn paging on |
|
call map_kernel |
|
movl $_hardcoded_ktext_size, hardcoded_ktext_size |
movl $_hardcoded_kdata_size, hardcoded_kdata_size |
movl $_hardcoded_load_address, hardcoded_load_address |
94,7 → 94,7 |
leal page_directory, %eax |
movl %eax, %cr3 |
|
# turn on paging |
# turn paging on |
movl %cr0, %ebx |
orl $(1<<31), %ebx |
movl %ebx, %cr0 |