1 /* Northwestern University */
2 /* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
4 #include <palacios/vm_dev.h>
5 #include <palacios/vmm_dev_mgr.h>
6 #include <palacios/vm_guest.h>
7 #include <palacios/vmm.h>
8 #include <palacios/vmm_decoder.h>
16 int dev_mgr_init(struct guest_info * info) {
17 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
18 INIT_LIST_HEAD(&(mgr->dev_list));
21 INIT_LIST_HEAD(&(mgr->io_hooks));
22 mgr->num_io_hooks = 0;
28 int dev_mgr_deinit(struct guest_info * info) {
29 struct vm_device * dev;
30 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
32 list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
33 v3_unattach_device(dev);
43 static int dev_mgr_add_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
44 list_add(&(dev->dev_link), &(mgr->dev_list));
50 static int dev_mgr_remove_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
51 list_del(&(dev->dev_link));
60 int dev_mgr_add_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
61 list_add(&(hook->mgr_list), &(mgr->io_hooks));
67 int dev_mgr_remove_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
68 list_del(&(hook->mgr_list));
75 int dev_add_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
76 list_add(&(hook->dev_list), &(dev->io_hooks));
82 int dev_remove_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
83 list_del(&(hook->dev_list));
93 struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
94 struct dev_io_hook * tmp;
96 list_for_each_entry(tmp, &(mgr->io_hooks), mgr_list) {
97 if (tmp->port == port) {
104 struct dev_io_hook * dev_find_io_hook(struct vm_device * dev, ushort_t port) {
105 struct dev_io_hook * tmp;
107 list_for_each_entry(tmp, &(dev->io_hooks), dev_list) {
108 if (tmp->port == port) {
118 int dev_hook_io(struct vm_device *dev,
120 int (*read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev),
121 int (*write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) {
123 struct dev_io_hook *hook = (struct dev_io_hook *)V3_Malloc(sizeof(struct dev_io_hook));
130 if (v3_hook_io_port(dev->vm, port,
131 (int (*)(ushort_t, void *, uint_t, void *))read,
132 (int (*)(ushort_t, void *, uint_t, void *))write,
140 dev_mgr_add_io_hook(&(dev->vm->dev_mgr), hook);
141 dev_add_io_hook(dev, hook);
151 int dev_unhook_io(struct vm_device *dev,
154 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
155 struct dev_io_hook * hook = dev_mgr_find_io_hook(mgr, port);
161 dev_mgr_remove_io_hook(mgr, hook);
162 dev_remove_io_hook(dev, hook);
164 return v3_unhook_io_port(dev->vm, port);
168 int v3_attach_device(struct guest_info * vm, struct vm_device * dev) {
169 struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
172 dev_mgr_add_device(mgr, dev);
178 int v3_unattach_device(struct vm_device * dev) {
179 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
181 dev->ops->deinit(dev);
182 dev_mgr_remove_device(mgr, dev);
192 int dev_mgr_hook_mem(struct guest_info *vm,
193 struct vm_device *device,
198 struct dev_mem_hook * hook = (struct dev_mem_hook*)V3_Malloc(sizeof(struct dev_mem_hook));
199 // V3_Malloc(struct dev_mem_hook *, hook,sizeof(struct dev_mem_hook));
205 /* not implemented yet
206 hook_memory(vm->mem_map,
207 guest_physical_address_start,
208 guest_physical_address_end,
215 return -1; // remove when hook_memory works
218 hook->addr_start = start;
219 hook->addr_end = end;
226 int dev_mgr_unhook_mem(struct vm_device *dev,
230 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
231 struct dev_mem_hook *hook = dev_mgr_find_mem_hook(mgr, start, end);
234 // Very bad - unhooking something that doesn't exist!
239 /* not implemented yet
240 return unhook_mem_port(vm->mem_map,
241 guest_physical_start,
242 guest_physical_end) ;
251 void PrintDebugDevMgr(struct guest_info * info) {
252 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
253 struct vm_device * dev;
254 PrintDebug("%d devices registered with manager\n", mgr->num_devs);
256 list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
258 PrintDebug("next..\n");
265 void PrintDebugDev(struct vm_device * dev) {
267 PrintDebug("Device: %s\n", dev->name);
268 PrintDebugDevIO(dev);
271 void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {
275 void PrintDebugDevIO(struct vm_device * dev) {
276 struct dev_io_hook * hook;
278 PrintDebug("IO Hooks(%d) for Device: %s\n", dev->num_io_hooks, dev->name);
280 list_for_each_entry(hook, &(dev->io_hooks), dev_list) {
281 PrintDebug("\tPort: 0x%x (read=0x%x), (write=0x%x)\n", hook->port, hook->read, hook->write);