| Jeff Dike | 995473a | 2006-09-27 01:50:40 -0700 | [diff] [blame] | 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 | |
| 18 | void flush_thread_skas(void) |
| 19 | { |
| Jeff Dike | a18ff1b | 2007-05-06 14:51:19 -0700 | [diff] [blame] | 20 | void *data = NULL; |
| 21 | unsigned long end = proc_mm ? task_size : CONFIG_STUB_START; |
| 22 | int ret; |
| 23 | |
| 24 | ret = unmap(¤t->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 | |
| Jeff Dike | 995473a | 2006-09-27 01:50:40 -0700 | [diff] [blame] | 31 | switch_mm_skas(¤t->mm->context.skas.id); |
| 32 | } |
| 33 | |
| 34 | void 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 | } |