ia64/pv_ops/xen: paravirtualize read/write ar.itc and ar.itm

[safe/jmp/linux-2.6] / arch / ia64 / include / asm / xen / interface.h

diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h
index f00fab4..e951e74 100644 (file)
--- a/arch/ia64/include/asm/xen/interface.h
+++ b/arch/ia64/include/asm/xen/interface.h
@@ -209,6 +209,15 @@ struct mapped_regs {
                        unsigned long krs[8];   /* kernel registers */
                        unsigned long tmp[16];  /* temp registers
                                                   (e.g. for hyperprivops) */
+
+                       /* itc paravirtualization
+                        * vAR.ITC = mAR.ITC + itc_offset
+                        * itc_last is one which was lastly passed to
+                        * the guest OS in order to prevent it from
+                        * going backwords.
+                        */
+                       unsigned long itc_offset;
+                       unsigned long itc_last;
                };
        };
 };