// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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*/
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#include <linux/init.h>
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#include <linux/sched/mm.h>
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#include <linux/sched/task_stack.h>
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#include <linux/sched/task.h>
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#include <as-layout.h>
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#include <kern.h>
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#include <os.h>
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#include <skas.h>
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extern void start_kernel(void);
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static int __init start_kernel_proc(void *unused)
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{
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int pid;
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block_signals_trace();
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pid = os_getpid();
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cpu_tasks[0].pid = pid;
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cpu_tasks[0].task = current;
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start_kernel();
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return 0;
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}
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extern int userspace_pid[];
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extern char cpu0_irqstack[];
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int __init start_uml(void)
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{
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stack_protections((unsigned long) &cpu0_irqstack);
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set_sigstack(cpu0_irqstack, THREAD_SIZE);
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init_new_thread_signals();
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init_task.thread.request.u.thread.proc = start_kernel_proc;
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init_task.thread.request.u.thread.arg = NULL;
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return start_idle_thread(task_stack_page(&init_task),
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&init_task.thread.switch_buf);
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}
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unsigned long current_stub_stack(void)
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{
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if (current->mm == NULL)
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return 0;
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return current->mm->context.id.stack;
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}
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