| 29,6 → 29,7 |
|---|
| #include <arch/arch.h> |
| #include <arch/regdef.h> |
| #include <arch/boot/boot.h> |
| #include <arch/stack.h> |
| |
| #include <arch/mm/mmu.h> |
| #include <arch/mm/tlb.h> |
| 56,7 → 57,6 |
|---|
| * following environment: |
| * - TLBs are on |
| * - identity mapping for the kernel image |
| * - identity mapping for memory stack |
| */ |
| |
| .global kernel_image_start |
| 67,7 → 67,10 |
|---|
| * Setup basic runtime environment. |
| */ |
| |
| flushw ! flush all but the active register window |
| wrpr %g0, NWINDOWS - 2, %cansave ! set maximum saveable windows |
| wrpr %g0, 0, %canrestore ! get rid of windows we will never need again |
| wrpr %g0, 0, %otherwin ! make sure the window state is consistent |
| wrpr %g0, NWINDOWS - 1, %cleanwin ! prevent needless clean_window traps for kernel |
| |
| wrpr %g0, 0, %tl ! TL = 0, primary context register is used |
| |
| 215,6 → 218,14 |
|---|
| brz %l7, 1f ! skip if you are not the bootstrap CPU |
| nop |
| |
| /* |
| * So far, we have not touched the stack. |
| * It is a good idead to set the kernel stack to a known state now. |
| */ |
| sethi %hi(temporary_boot_stack), %sp |
| or %sp, %lo(temporary_boot_stack), %sp |
| sub %sp, STACK_BIAS, %sp |
| |
| sethi %hi(bootinfo), %o0 |
| call memcpy ! copy bootinfo |
| or %o0, %lo(bootinfo), %o0 |
| 272,3 → 283,26 |
|---|
| 0: |
| ba 0b |
| nop |
| |
| |
| .section K_DATA_START, "aw", @progbits |
| |
| /* |
| * Create small stack to be used by the bootstrap processor. |
| * It is going to be used only for a very limited period of |
| * time, but we switch to it anyway, just to be sure we are |
| * properly initialized. |
| * |
| * What is important is that this piece of memory is covered |
| * by the 4M DTLB locked entry and therefore there will be |
| * no surprises like deadly combinations of spill trap and |
| * and TLB miss on the stack address. |
| */ |
| |
| #define INITIAL_STACK_SIZE 1024 |
| |
| .align STACK_ALIGNMENT |
| .space INITIAL_STACK_SIZE |
| .align STACK_ALIGNMENT |
| temporary_boot_stack: |
| .space STACK_WINDOW_SAVE_AREA_SIZE |