diff options
Diffstat (limited to 'arch/x86/kernel/entry_32.S')
-rw-r--r-- | arch/x86/kernel/entry_32.S | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index b6bb69239296..fe4cc305d8da 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S | |||
@@ -618,6 +618,10 @@ work_notifysig: # deal with pending signals and | |||
618 | movl %esp, %eax | 618 | movl %esp, %eax |
619 | jne work_notifysig_v86 # returning to kernel-space or | 619 | jne work_notifysig_v86 # returning to kernel-space or |
620 | # vm86-space | 620 | # vm86-space |
621 | 1: | ||
622 | #else | ||
623 | movl %esp, %eax | ||
624 | #endif | ||
621 | TRACE_IRQS_ON | 625 | TRACE_IRQS_ON |
622 | ENABLE_INTERRUPTS(CLBR_NONE) | 626 | ENABLE_INTERRUPTS(CLBR_NONE) |
623 | movb PT_CS(%esp), %bl | 627 | movb PT_CS(%esp), %bl |
@@ -628,24 +632,15 @@ work_notifysig: # deal with pending signals and | |||
628 | call do_notify_resume | 632 | call do_notify_resume |
629 | jmp resume_userspace | 633 | jmp resume_userspace |
630 | 634 | ||
635 | #ifdef CONFIG_VM86 | ||
631 | ALIGN | 636 | ALIGN |
632 | work_notifysig_v86: | 637 | work_notifysig_v86: |
633 | pushl_cfi %ecx # save ti_flags for do_notify_resume | 638 | pushl_cfi %ecx # save ti_flags for do_notify_resume |
634 | call save_v86_state # %eax contains pt_regs pointer | 639 | call save_v86_state # %eax contains pt_regs pointer |
635 | popl_cfi %ecx | 640 | popl_cfi %ecx |
636 | movl %eax, %esp | 641 | movl %eax, %esp |
637 | #else | 642 | jmp 1b |
638 | movl %esp, %eax | ||
639 | #endif | 643 | #endif |
640 | TRACE_IRQS_ON | ||
641 | ENABLE_INTERRUPTS(CLBR_NONE) | ||
642 | movb PT_CS(%esp), %bl | ||
643 | andb $SEGMENT_RPL_MASK, %bl | ||
644 | cmpb $USER_RPL, %bl | ||
645 | jb resume_kernel | ||
646 | xorl %edx, %edx | ||
647 | call do_notify_resume | ||
648 | jmp resume_userspace | ||
649 | END(work_pending) | 644 | END(work_pending) |
650 | 645 | ||
651 | # perform syscall exit tracing | 646 | # perform syscall exit tracing |