added copyright tags

[palacios.git] / palacios / include / palacios / vmm_decoder.h

diff --git a/palacios/include/palacios/vmm_decoder.h b/palacios/include/palacios/vmm_decoder.h
index 2617913..0d4fbba 100644 (file)
--- a/palacios/include/palacios/vmm_decoder.h
+++ b/palacios/include/palacios/vmm_decoder.h
@@ -1,3 +1,6 @@
+/* Northwestern University */
+/* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
+
 #ifndef __VMM_EMULATE_H
 #define __VMM_EMULATE_H
 
@@ -47,6 +50,15 @@ struct x86_instr {
 };
 
 
+struct basic_instr_info {
+  uint_t instr_length;
+  uint_t op_size;
+  uint_t str_op    : 1;
+  uint_t has_rep : 1;
+};
+
+
+
   /************************/
  /* EXTERNAL DECODER API */
 /************************/
@@ -84,11 +96,12 @@ int v3_encode(struct guest_info * info, struct x86_instr * instr, char * instr_b
  * Gets the operand size for a memory operation
  *
  */
-int v3_basic_mem_decode(struct guest_info * info, addr_t instr_ptr, uint_t * size, uint_t * instr_len);
-
+int v3_basic_mem_decode(struct guest_info * info, addr_t instr_ptr, struct basic_instr_info * instr_info);
 
 
 
+/* Removes a rep prefix in place */
+void strip_rep_prefix(uchar_t * instr, int length);