1 #include <palacios/vm_dev.h>
2 #include <palacios/vmm_dev_mgr.h>
3 #include <palacios/vm_guest.h>
4 #include <palacios/vmm.h>
7 extern struct vmm_os_hooks *os_hooks;
13 int dev_mgr_init(struct vmm_dev_mgr * mgr) {
14 mgr->dev_list.head = NULL;
15 mgr->dev_list.num_devs = 0;
20 int dev_mgr_deinit(struct vmm_dev_mgr * mgr)
22 struct vm_device * dev = mgr->dev_list.head;
35 int dev_mgr_add_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
36 dev->next = mgr->dev_list.head;
39 dev->next->prev = dev;
41 mgr->dev_list.head = dev;
43 mgr->dev_list.num_devs++;
48 int dev_mgr_remove_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
49 if (mgr->dev_list.head == dev) {
50 mgr->dev_list.head = dev->next;
52 dev->prev->next = dev->next;
55 dev->next->prev = dev->prev;
58 mgr->dev_list.num_devs--;
64 int dev_mgr_add_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
65 hook->mgr_next = mgr->io_hooks.head;
66 hook->mgr_prev = NULL;
68 hook->mgr_next->mgr_prev = hook;
70 mgr->io_hooks.head = hook;
72 mgr->io_hooks.num_hooks++;
78 int dev_mgr_remove_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
79 if (mgr->io_hooks.head == hook) {
80 mgr->io_hooks.head = hook->mgr_next;
82 hook->mgr_prev->mgr_next = hook->mgr_next;
86 hook->mgr_next->mgr_prev = hook->mgr_prev;
89 mgr->io_hooks.num_hooks--;
95 int dev_add_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
96 hook->dev_next = dev->io_hooks.head;
97 hook->dev_prev = NULL;
99 hook->dev_next->dev_prev = hook;
101 dev->io_hooks.head = hook;
103 dev->io_hooks.num_hooks++;
109 int dev_remove_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
110 if (dev->io_hooks.head == hook) {
111 dev->io_hooks.head = hook->dev_next;
113 hook->dev_prev->dev_next = hook->dev_next;
116 if (hook->dev_next) {
117 hook->dev_next->dev_prev = hook->dev_prev;
120 dev->io_hooks.num_hooks--;
126 struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
127 struct dev_io_hook * tmp = mgr->io_hooks.head;
130 if (tmp->port == port) {
139 struct dev_io_hook * dev_find_io_hook(struct vm_device * dev, ushort_t port) {
140 struct dev_io_hook * tmp = dev->io_hooks.head;
143 if (tmp->port == port) {
155 int attach_device(struct guest_info * vm, struct vm_device * dev) {
156 struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
159 dev_mgr_add_device(mgr, dev);
165 int unattach_device(struct vm_device * dev) {
166 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
168 dev->ops->deinit(dev);
169 dev_mgr_remove_device(mgr, dev);
177 int dev_hook_io(struct vm_device *dev,
179 int (*read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev),
180 int (*write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) {
182 struct dev_io_hook *hook = os_hooks->malloc(sizeof(struct dev_io_hook));
189 if (hook_io_port(&(dev->vm->io_map), port,
190 (int (*)(ushort_t, void *, uint_t, void *))read,
191 (int (*)(ushort_t, void *, uint_t, void *))write,
199 dev_mgr_add_io_hook(&(dev->vm->dev_mgr), hook);
200 dev_add_io_hook(dev, hook);
209 int dev_unhook_io(struct vm_device *dev,
212 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
213 struct dev_io_hook * hook = dev_mgr_find_io_hook(mgr, port);
219 dev_mgr_remove_io_hook(mgr, hook);
220 dev_remove_io_hook(dev, hook);
222 return unhook_io_port(&(dev->vm->io_map), port);
227 int dev_mgr_hook_mem(struct guest_info *vm,
228 struct vm_device *device,
233 struct dev_mem_hook *hook = os_hooks->malloc(sizeof(struct dev_mem_hook));
242 /* not implemented yet
243 hook_memory(vm->mem_map,
244 guest_physical_address_start,
245 guest_physical_address_end,
252 return -1; // remove when hook_memory works
255 hook->addr_start = start;
256 hook->addr_end = end;
263 int dev_mgr_unhook_mem(struct guest_info *vm,
264 struct vm_device *device,
268 struct dev_mem_hook *hook = device->mem_hooks.head;
271 if (((hook->addr_start) == start) && (hook->addr_end == end)) {
277 // Very bad - unhooking something that doesn't exist!
282 /* not implemented yet
283 return unhook_mem_port(vm->mem_map,
284 guest_physical_start,
285 guest_physical_end) ;
294 void PrintDebugDevMgr(struct vmm_dev_mgr * mgr) {
295 struct vm_device * dev = mgr->dev_list.head;
306 void PrintDebugDev(struct vm_device * dev) {
308 PrintDebug("Device: %s\n", dev->name);
309 PrintDebugDevIO(dev);
312 void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {
316 void PrintDebugDevIO(struct vm_device * dev) {
317 struct dev_io_hook * hook = dev->io_hooks.head;
319 PrintDebug("IO Hooks (%d) for Device: %s\n", dev->io_hooks.num_hooks, dev->name);
322 PrintDebug("\tPort: 0x%x (read=0x%x), (write=0x%x)\n", hook->port, hook->read, hook->write);
323 hook = hook->dev_next;