Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


updates to make things more configurable
[palacios.git] / palacios / src / palacios / vmm_extensions.c
1 /*
2  * This file is part of the Palacios Virtual Machine Monitor developed
3  * by the V3VEE Project with funding from the United States National 
4  * Science Foundation and the Department of Energy.  
5  *
6  * The V3VEE Project is a joint project between Northwestern University
7  * and the University of New Mexico.  You can find out more at 
8  * http://www.v3vee.org
9  *
10  * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
11  * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
12  * All rights reserved.
13  *
14  * Author: Jack Lange <jarusl@cs.northwestern.edu>
15  *
16  * This is free software.  You are permitted to use,
17  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
18  */
19
20 #include <palacios/vmm.h>
21
22 #include <palacios/vmm_extensions.h>
23
24 #include <palacios/vmm_hashtable.h>
25
26
27 static struct hashtable * ext_table = NULL;
28
29
30 static uint_t ext_hash_fn(addr_t key) {
31     char * name = (char *)key;
32     return v3_hash_buffer((uint8_t *)name, strlen(name));
33 }
34
35 static int ext_eq_fn(addr_t key1, addr_t key2) {
36     char * name1 = (char *)key1;
37     char * name2 = (char *)key2;
38
39     return (strcmp(name1, name2) == 0);
40 }
41
42
43
44 int V3_init_extensions() {
45     extern struct v3_extension_impl * __start__v3_extensions[];
46     extern struct v3_extension_impl * __stop__v3_extensions[];
47     struct v3_extension_impl ** tmp_ext = __start__v3_extensions;
48     int i = 0;
49
50     ext_table = v3_create_htable(0, ext_hash_fn, ext_eq_fn);
51
52     while (tmp_ext != __stop__v3_extensions) {
53         V3_Print("Registering Extension (%s)\n", (*tmp_ext)->name);
54
55         if (v3_htable_search(ext_table, (addr_t)((*tmp_ext)->name))) {
56             PrintError("Multiple instances of Extension (%s)\n", (*tmp_ext)->name);
57             return -1;
58         }
59
60         if (v3_htable_insert(ext_table, (addr_t)((*tmp_ext)->name), (addr_t)(*tmp_ext)) == 0) {
61             PrintError("Could not register Extension (%s)\n", (*tmp_ext)->name);
62             return -1;
63         }
64
65         tmp_ext = &(__start__v3_extensions[++i]);
66     }
67
68     return 0;
69 }
70
71
72 int V3_deinit_extensions() {
73     v3_free_htable(ext_table, 0, 0);
74     return 0;
75 }
76
77