| 39,7 → 39,7 |
|---|
| * Change CPU protection level to 3, enter userspace. |
| * |
| */ |
| void userspace(__address entry) |
| void userspace(uspace_arg_t *uarg) |
| { |
| ipl_t ipl; |
| |
| 46,22 → 46,18 |
|---|
| ipl = interrupts_disable(); |
| |
| __asm__ volatile ("" |
| "movq %0, %%rax;" |
| "movq %1, %%rbx;" |
| "movq %2, %%rcx;" |
| "movq %3, %%rdx;" |
| "movq %4, %%rsi;" |
| "pushq %%rax;" |
| "pushq %%rbx;" |
| "pushq %%rcx;" |
| "pushq %%rdx;" |
| "pushq %%rsi;" |
| "iretq;" |
| : : "i" (gdtselector(UDATA_DES) | PL_USER), |
| "i" (USTACK_ADDRESS+THREAD_STACK_SIZE), |
| "pushq %0\n" |
| "pushq %1\n" |
| "pushq %2\n" |
| "pushq %3\n" |
| "pushq %4\n" |
| "iretq\n" |
| : : |
| "i" (gdtselector(UDATA_DES) | PL_USER), |
| "r" (uarg->uspace_stack+THREAD_STACK_SIZE), |
| "r" (ipl), |
| "i" (gdtselector(UTEXT_DES) | PL_USER), |
| "r" (entry)); |
| "r" (uarg->uspace_entry)); |
| |
| /* Unreachable */ |
| for(;;); |