diff options
Diffstat (limited to 'arch/i386/kernel/vm86.c')
-rw-r--r-- | arch/i386/kernel/vm86.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c index ec0f68ce6886..16b485009622 100644 --- a/arch/i386/kernel/vm86.c +++ b/arch/i386/kernel/vm86.c | |||
@@ -294,8 +294,8 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk | |||
294 | */ | 294 | */ |
295 | info->regs32->eax = 0; | 295 | info->regs32->eax = 0; |
296 | tsk->thread.saved_esp0 = tsk->thread.esp0; | 296 | tsk->thread.saved_esp0 = tsk->thread.esp0; |
297 | asm volatile("mov %%fs,%0":"=m" (tsk->thread.saved_fs)); | 297 | savesegment(fs, tsk->thread.saved_fs); |
298 | asm volatile("mov %%gs,%0":"=m" (tsk->thread.saved_gs)); | 298 | savesegment(gs, tsk->thread.saved_gs); |
299 | 299 | ||
300 | tss = &per_cpu(init_tss, get_cpu()); | 300 | tss = &per_cpu(init_tss, get_cpu()); |
301 | tsk->thread.esp0 = (unsigned long) &info->VM86_TSS_ESP0; | 301 | tsk->thread.esp0 = (unsigned long) &info->VM86_TSS_ESP0; |
@@ -542,7 +542,7 @@ void handle_vm86_fault(struct kernel_vm86_regs * regs, long error_code) | |||
542 | unsigned char opcode; | 542 | unsigned char opcode; |
543 | unsigned char __user *csp; | 543 | unsigned char __user *csp; |
544 | unsigned char __user *ssp; | 544 | unsigned char __user *ssp; |
545 | unsigned short ip, sp; | 545 | unsigned short ip, sp, orig_flags; |
546 | int data32, pref_done; | 546 | int data32, pref_done; |
547 | 547 | ||
548 | #define CHECK_IF_IN_TRAP \ | 548 | #define CHECK_IF_IN_TRAP \ |
@@ -551,8 +551,12 @@ void handle_vm86_fault(struct kernel_vm86_regs * regs, long error_code) | |||
551 | #define VM86_FAULT_RETURN do { \ | 551 | #define VM86_FAULT_RETURN do { \ |
552 | if (VMPI.force_return_for_pic && (VEFLAGS & (IF_MASK | VIF_MASK))) \ | 552 | if (VMPI.force_return_for_pic && (VEFLAGS & (IF_MASK | VIF_MASK))) \ |
553 | return_to_32bit(regs, VM86_PICRETURN); \ | 553 | return_to_32bit(regs, VM86_PICRETURN); \ |
554 | if (orig_flags & TF_MASK) \ | ||
555 | handle_vm86_trap(regs, 0, 1); \ | ||
554 | return; } while (0) | 556 | return; } while (0) |
555 | 557 | ||
558 | orig_flags = *(unsigned short *)®s->eflags; | ||
559 | |||
556 | csp = (unsigned char __user *) (regs->cs << 4); | 560 | csp = (unsigned char __user *) (regs->cs << 4); |
557 | ssp = (unsigned char __user *) (regs->ss << 4); | 561 | ssp = (unsigned char __user *) (regs->ss << 4); |
558 | sp = SP(regs); | 562 | sp = SP(regs); |