1/*
2 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
4 */
5
6#include "linux/kernel.h"
7#include "asm/current.h"
8#include "asm/page.h"
9#include "asm/signal.h"
10#include "asm/ptrace.h"
11#include "asm/uaccess.h"
12#include "asm/mmu_context.h"
13#include "tlb.h"
14#include "skas.h"
15#include "um_mmu.h"
16#include "os.h"
17
18void flush_thread_skas(void)
19{
20	void *data = NULL;
21	unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
22	int ret;
23
24	ret = unmap(&current->mm->context.skas.id, 0, end, 1, &data);
25	if(ret){
26		printk("flush_thread_skas - clearing address space failed, "
27		       "err = %d\n", ret);
28		force_sig(SIGKILL, current);
29	}
30
31	switch_mm_skas(&current->mm->context.skas.id);
32}
33
34void start_thread_skas(struct pt_regs *regs, unsigned long eip,
35		       unsigned long esp)
36{
37	set_fs(USER_DS);
38	PT_REGS_IP(regs) = eip;
39	PT_REGS_SP(regs) = esp;
40}
41