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.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
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.
14 * Author: Jack Lange <jarusl@cs.northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
20 #include <palacios/vm_dev.h>
21 #include <palacios/vmm_dev_mgr.h>
22 #include <palacios/vm_guest.h>
23 #include <palacios/vmm.h>
24 #include <palacios/vmm_decoder.h>
32 int dev_mgr_init(struct guest_info * info) {
33 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
34 INIT_LIST_HEAD(&(mgr->dev_list));
37 INIT_LIST_HEAD(&(mgr->io_hooks));
38 mgr->num_io_hooks = 0;
44 int dev_mgr_deinit(struct guest_info * info) {
45 struct vm_device * dev;
46 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
47 struct vm_device * tmp;
49 list_for_each_entry_safe(dev, tmp, &(mgr->dev_list), dev_link) {
50 v3_unattach_device(dev);
60 static int dev_mgr_add_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
61 list_add(&(dev->dev_link), &(mgr->dev_list));
67 static int dev_mgr_remove_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
68 list_del(&(dev->dev_link));
77 int dev_mgr_add_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
78 list_add(&(hook->mgr_list), &(mgr->io_hooks));
84 int dev_mgr_remove_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
85 list_del(&(hook->mgr_list));
92 int dev_add_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
93 list_add(&(hook->dev_list), &(dev->io_hooks));
99 int dev_remove_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
100 list_del(&(hook->dev_list));
110 struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
111 struct dev_io_hook * tmp;
113 list_for_each_entry(tmp, &(mgr->io_hooks), mgr_list) {
114 if (tmp->port == port) {
121 struct dev_io_hook * dev_find_io_hook(struct vm_device * dev, ushort_t port) {
122 struct dev_io_hook * tmp;
124 list_for_each_entry(tmp, &(dev->io_hooks), dev_list) {
125 if (tmp->port == port) {
135 int dev_hook_io(struct vm_device *dev,
137 int (*read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev),
138 int (*write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) {
140 struct dev_io_hook *hook = (struct dev_io_hook *)V3_Malloc(sizeof(struct dev_io_hook));
147 if (v3_hook_io_port(dev->vm, port,
148 (int (*)(ushort_t, void *, uint_t, void *))read,
149 (int (*)(ushort_t, void *, uint_t, void *))write,
157 dev_mgr_add_io_hook(&(dev->vm->dev_mgr), hook);
158 dev_add_io_hook(dev, hook);
168 int dev_unhook_io(struct vm_device *dev,
171 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
172 struct dev_io_hook * hook = dev_mgr_find_io_hook(mgr, port);
178 dev_mgr_remove_io_hook(mgr, hook);
179 dev_remove_io_hook(dev, hook);
181 return v3_unhook_io_port(dev->vm, port);
185 int v3_attach_device(struct guest_info * vm, struct vm_device * dev) {
186 struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
189 dev_mgr_add_device(mgr, dev);
195 int v3_unattach_device(struct vm_device * dev) {
196 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
198 dev->ops->deinit(dev);
199 dev_mgr_remove_device(mgr, dev);
209 int dev_mgr_hook_mem(struct guest_info *vm,
210 struct vm_device *device,
215 struct dev_mem_hook * hook = (struct dev_mem_hook*)V3_Malloc(sizeof(struct dev_mem_hook));
216 // V3_Malloc(struct dev_mem_hook *, hook,sizeof(struct dev_mem_hook));
222 /* not implemented yet
223 hook_memory(vm->mem_map,
224 guest_physical_address_start,
225 guest_physical_address_end,
232 return -1; // remove when hook_memory works
235 hook->addr_start = start;
236 hook->addr_end = end;
243 int dev_mgr_unhook_mem(struct vm_device *dev,
247 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
248 struct dev_mem_hook *hook = dev_mgr_find_mem_hook(mgr, start, end);
251 // Very bad - unhooking something that doesn't exist!
256 /* not implemented yet
257 return unhook_mem_port(vm->mem_map,
258 guest_physical_start,
259 guest_physical_end) ;
268 void PrintDebugDevMgr(struct guest_info * info) {
269 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
270 struct vm_device * dev;
271 PrintDebug("%d devices registered with manager\n", mgr->num_devs);
273 list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
275 PrintDebug("next..\n");
282 void PrintDebugDev(struct vm_device * dev) {
284 PrintDebug("Device: %s\n", dev->name);
285 PrintDebugDevIO(dev);
288 void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {
292 void PrintDebugDevIO(struct vm_device * dev) {
293 struct dev_io_hook * hook;
295 PrintDebug("IO Hooks(%d) for Device: %s\n", dev->num_io_hooks, dev->name);
297 list_for_each_entry(hook, &(dev->io_hooks), dev_list) {
298 PrintDebug("\tPort: 0x%x (read=0x%x), (write=0x%x)\n", hook->port, hook->read, hook->write);