xen: add support for callbackops hypercall

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/asm-x86/xen/interface.h b/include/asm-x86/xen/interface.h
index 165c3968e138..588a0716cd78 100644
--- a/include/asm-x86/xen/interface.h
+++ b/include/asm-x86/xen/interface.h
@@ -171,6 +171,10 @@ struct arch_vcpu_info {
     unsigned long pad[5]; /* sizeof(struct vcpu_info) == 64 */
 };
 
+struct xen_callback {
+        unsigned long cs;
+        unsigned long eip;
+};
 #endif /* !__ASSEMBLY__ */
 
 /*