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| author |   Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-08 15:07:00 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-07-16 11:02:31 +0200 |
| commit | 997409d3d0bd6894f33e31ced251c0fdf523aa14 (patch) | |
| tree | cc4a963310cc9ae00138607cdaa35c99e7d5f76c /arch/x86/xen/xen-ops.h | |
| parent | xen64: xen_write_idt_entry() and cvt_gate_to_trap() (diff) | |
| download | linux-dev-997409d3d0bd6894f33e31ced251c0fdf523aa14.tar.xz linux-dev-997409d3d0bd6894f33e31ced251c0fdf523aa14.zip | |
xen64: deal with extra words Xen pushes onto exception frames
Xen pushes two extra words containing the values of rcx and r11. This
pvop hook copies the words back into their appropriate registers, and
cleans them off the stack. This leaves the stack in native form, so
the normal handler can run unchanged.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.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>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/xen/xen-ops.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index aca4a7803e2c..c4800a2c5a41 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -67,7 +67,9 @@ DECL_ASM(void, xen_irq_disable_direct, void); DECL_ASM(unsigned long, xen_save_fl_direct, void); DECL_ASM(void, xen_restore_fl_direct, unsigned long); +/* These are not functions, and cannot be called normally */ void xen_iret(void); void xen_sysexit(void); +void xen_adjust_exception_frame(void); #endif /* XEN_OPS_H */ |