-#include <palacios/vmm_decoder.h>
-
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
-/* The full blown instruction parser... */
-int v3_parse_instr(struct guest_info * info,
- char * instr_ptr,
- uint_t * instr_length,
- addr_t * opcode,
- uint_t * opcode_length,
- struct x86_prefix_list * prefixes,
- struct x86_operand * src_operand,
- struct x86_operand * dst_operand,
- struct x86_operand * extra_operand) {
+#include <palacios/vmm_decoder.h>
- V3_ASSERT(src_operand != NULL);
- V3_ASSERT(dst_operand != NULL);
- V3_ASSERT(extra_operand != NULL);
- V3_ASSERT(instr_length != NULL);
- V3_ASSERT(info != NULL);
-
- // Ignore prefixes for now
- while (is_prefix_byte(*instr_ptr)) {
- instr_ptr++;
- *instr_length++;
+int v3_opcode_cmp(const uchar_t * op1, const uchar_t * op2) {
+ if (op1[0] != op2[0]) {
+ return op1[0] - op2[0];;
+ } else {
+ return memcmp(op1 + 1, op2 + 1, op1[0]);
}
+}
- // Opcode table lookup, see xen/kvm
-
-
-
-
-
- return 0;
+void v3_strip_rep_prefix(uchar_t * instr, int length) {
+ int read_ctr = 0;
+ int write_ctr = 0;
+ int found = 0;
+
+ while (read_ctr < length) {
+ if ((!found) &&
+ ( (instr[read_ctr] == 0xF2) ||
+ (instr[read_ctr] == 0xF3))) {
+ read_ctr++;
+ found = 1;
+ } else {
+ instr[write_ctr] = instr[read_ctr];
+ write_ctr++;
+ read_ctr++;
+ }
+ }
}
