1 files changed, 15 insertions, 0 deletions
diff --git a/xen-2.4.16/include/asm-i386/processor.h b/xen-2.4.16/include/asm-i386/processor.h
index b3f496c5bc..f7f949d82b 100644
--- a/xen-2.4.16/include/asm-i386/processor.h
+++ b/xen-2.4.16/include/asm-i386/processor.h
@@ -10,6 +10,7 @@
 #include <asm/page.h>
 #include <asm/types.h>
 #include <asm/cpufeature.h>
+#include <asm/desc.h>
 #include <xeno/config.h>
 #include <hypervisor-ifs/hypervisor-if.h>
 
@@ -352,15 +353,29 @@ struct thread_struct {
 /* floating point info */
     union i387_union	i387;
 /* Trap info. */
+    int                 fast_trap_idx;
+    struct desc_struct  fast_trap_desc;
     trap_info_t         traps[256];
 };
 
+#define SET_DEFAULT_FAST_TRAP(_p) \
+    (_p)->fast_trap_idx = 0x20;   \
+    (_p)->fast_trap_desc.a = 0;   \
+    (_p)->fast_trap_desc.b = 0;
+
+#define CLEAR_FAST_TRAP(_p) \
+    (memset(idt_table + (_p)->fast_trap_idx, 0, 8))
+
+#define SET_FAST_TRAP(_p)   \
+    (memcpy(idt_table + (_p)->fast_trap_idx, &((_p)->fast_trap_desc), 8))
+
 #define INIT_THREAD  {						\
 	sizeof(idle0_stack) + (long) &idle0_stack, /* esp0 */   \
 	0, 0, 0, 0, 0, 0,		      			\
 	{ [0 ... 7] = 0 },	/* debugging registers */	\
 	0, 0, 0,						\
 	{ { 0, }, },		/* 387 state */			\
+	0x20, { 0, 0 },		/* DEFAULT_FAST_TRAP */		\
 	{ {0} }			/* io permissions */		\
 }