| 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 |