modified 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 bee9b4f..b6e65e6 100644 (file)
--- a/palacios/include/palacios/vmm_decoder.h
+++ b/palacios/include/palacios/vmm_decoder.h
@@ -1,3 +1,6 @@
+/* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
+/* (c) 2008, The V3VEE Project <http://www.v3vee.org> */
+
 #ifndef __VMM_EMULATE_H
 #define __VMM_EMULATE_H
 
@@ -7,7 +10,7 @@
 #include <palacios/vmm.h>
 
 
-typedef enum {INVALID_OPERAND, REG_OPERAND, MEM_OPERAND} operand_type_t;
+typedef enum {INVALID_OPERAND, REG_OPERAND, MEM_OPERAND, IMM_OPERAND} operand_type_t;
 
 struct x86_operand {
   addr_t operand;
@@ -40,13 +43,22 @@ struct x86_instr {
   uint_t instr_length;
   addr_t opcode;    // a pointer to the V3_OPCODE_[*] arrays defined below
   uint_t num_operands;
-  struct x86_operand first_operand;
-  struct x86_operand second_operand;
+  struct x86_operand dst_operand;
+  struct x86_operand src_operand;
   struct x86_operand third_operand;
   void * decoder_data;
 };
 
 
+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 */
 /************************/
@@ -80,10 +92,16 @@ int v3_decode(struct guest_info * info, addr_t instr_ptr, struct x86_instr * ins
 int v3_encode(struct guest_info * info, struct x86_instr * instr, char * instr_buf);
 
 
+/*
+ * Gets the operand size for a memory operation
+ *
+ */
+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);