ia64/pv_ops/xen: define xen specific gate page.

[linux-2.6-block.git] / arch / ia64 / xen / xen_pv_ops.c

diff --git a/arch/ia64/xen/xen_pv_ops.c b/arch/ia64/xen/xen_pv_ops.c
index d91336114344a1ff112d3324678a7d74e7cef81e..bdf1acbce81c600c465a9360100dd848c8c83fa5 100644 (file)
--- a/arch/ia64/xen/xen_pv_ops.c
+++ b/arch/ia64/xen/xen_pv_ops.c
@@ -178,6 +178,37 @@ struct pv_fsys_data xen_fsys_data __initdata = {
        .fsys_bubble_down = (void *)xen_fsys_bubble_down,
 };
 
+/***************************************************************************
+ * pv_patchdata
+ * patchdata addresses
+ */
+
+#define DECLARE(name)                                                  \
+       extern unsigned long __xen_start_gate_##name##_patchlist[];     \
+       extern unsigned long __xen_end_gate_##name##_patchlist[]
+
+DECLARE(fsyscall);
+DECLARE(brl_fsys_bubble_down);
+DECLARE(vtop);
+DECLARE(mckinley_e9);
+
+extern unsigned long __xen_start_gate_section[];
+
+#define ASSIGN(name)                                                   \
+       .start_##name##_patchlist =                                     \
+               (unsigned long)__xen_start_gate_##name##_patchlist,     \
+       .end_##name##_patchlist =                                       \
+               (unsigned long)__xen_end_gate_##name##_patchlist
+
+static struct pv_patchdata xen_patchdata __initdata = {
+       ASSIGN(fsyscall),
+       ASSIGN(brl_fsys_bubble_down),
+       ASSIGN(vtop),
+       ASSIGN(mckinley_e9),
+
+       .gate_section = (void*)__xen_start_gate_section,
+};
+
 /***************************************************************************
  * pv_cpu_ops
  * intrinsics hooks.
@@ -447,6 +478,7 @@ xen_setup_pv_ops(void)
        pv_info = xen_info;
        pv_init_ops = xen_init_ops;
        pv_fsys_data = xen_fsys_data;
+       pv_patchdata = xen_patchdata;
        pv_cpu_ops = xen_cpu_ops;
        pv_iosapic_ops = xen_iosapic_ops;
        pv_irq_ops = xen_irq_ops;