x86/paravirt, 64-bit: add adjust_exception_frame

64-bit Xen pushes a couple of extra words onto an exception frame.
Add a hook to deal with them.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 880ffe510a11..70fe13a1c41d 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -736,6 +736,7 @@ END(spurious_interrupt)
  */             
         .macro zeroentry sym
         INTR_FRAME
+        PARAVIRT_ADJUST_EXCEPTION_FRAME
         pushq $0        /* push error code/oldrax */ 
         CFI_ADJUST_CFA_OFFSET 8
         pushq %rax      /* push real oldrax to the rdi slot */ 
@@ -748,6 +749,7 @@ END(spurious_interrupt)
 
         .macro errorentry sym
         XCPT_FRAME
+        PARAVIRT_ADJUST_EXCEPTION_FRAME
         pushq %rax
         CFI_ADJUST_CFA_OFFSET 8
         CFI_REL_OFFSET rax,0