diff options
| author | Gleb Natapov <gleb@redhat.com> | 2010-10-14 13:22:52 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 12:23:16 +0300 |
| commit | 631bc4878220932fe67fc46fc7cf7cccdb1ec597 (patch) | |
| tree | ac588182d02308a004d45a9c3ae6834d096e263d /arch/x86/include/asm/traps.h | |
| parent | fd10cde9294f73eeccbc16f3fec1ae6cde7b800c (diff) | |
| download | linux-631bc4878220932fe67fc46fc7cf7cccdb1ec597.tar.xz | |
KVM: Handle async PF in a guest.
When async PF capability is detected hook up special page fault handler
that will handle async page fault events and bypass other page faults to
regular page fault handler. Also add async PF handling to nested SVM
emulation. Async PF always generates exit to L1 where vcpu thread will
be scheduled out until page is available.
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/traps.h')
| -rw-r--r-- | arch/x86/include/asm/traps.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h index f66cda56781d..0310da67307f 100644 --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -30,6 +30,7 @@ asmlinkage void segment_not_present(void); asmlinkage void stack_segment(void); asmlinkage void general_protection(void); asmlinkage void page_fault(void); +asmlinkage void async_page_fault(void); asmlinkage void spurious_interrupt_bug(void); asmlinkage void coprocessor_error(void); asmlinkage void alignment_check(void); |