diff options
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index ad535b683170..7cf0a6b6d4bb 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -356,7 +356,7 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp) percpu_write(old_rsp, new_sp); regs->cs = __USER_CS; regs->ss = __USER_DS; - regs->flags = 0x200; + regs->flags = X86_EFLAGS_IF; set_fs(USER_DS); /* * Free the old FP and other extended state @@ -365,6 +365,27 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp) } EXPORT_SYMBOL_GPL(start_thread); +#ifdef CONFIG_IA32_EMULATION +void start_thread_ia32(struct pt_regs *regs, u32 new_ip, u32 new_sp) +{ + loadsegment(fs, 0); + loadsegment(ds, __USER32_DS); + loadsegment(es, __USER32_DS); + load_gs_index(0); + regs->ip = new_ip; + regs->sp = new_sp; + percpu_write(old_rsp, new_sp); + regs->cs = __USER32_CS; + regs->ss = __USER32_DS; + regs->flags = X86_EFLAGS_IF; + set_fs(USER_DS); + /* + * Free the old FP and other extended state + */ + free_thread_xstate(current); +} +#endif + /* * switch_to(x,y) should switch tasks from x to y. * |