2 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL
6 #include "linux/init.h"
7 #include "linux/sched.h"
13 int new_mm(unsigned long stack)
17 fd = os_open_file("/proc/mm", of_cloexec(of_write(OPENFLAGS())), 0);
21 if (skas_needs_stub) {
22 err = map_stub_pages(fd, STUB_CODE, STUB_DATA, stack);
32 extern void start_kernel(void);
34 static int __init start_kernel_proc(void *unused)
41 cpu_tasks[0].pid = pid;
42 cpu_tasks[0].task = current;
44 cpu_online_map = cpumask_of_cpu(0);
50 extern int userspace_pid[];
52 extern char cpu0_irqstack[];
54 int __init start_uml(void)
56 stack_protections((unsigned long) &cpu0_irqstack);
57 set_sigstack(cpu0_irqstack, THREAD_SIZE);
59 userspace_pid[0] = start_userspace(0);
60 if (userspace_pid[0] < 0) {
61 printf("start_uml - start_userspace returned %d\n",
67 init_new_thread_signals();
69 init_task.thread.request.u.thread.proc = start_kernel_proc;
70 init_task.thread.request.u.thread.arg = NULL;
71 return start_idle_thread(task_stack_page(&init_task),
72 &init_task.thread.switch_buf);
75 unsigned long current_stub_stack(void)
77 if (current->mm == NULL)
80 return current->mm->context.id.stack;