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>
29 #define PrintDebug(fmt, args...)
34 int v3_init_dev_mgr(struct guest_info * info) {
35 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
36 INIT_LIST_HEAD(&(mgr->dev_list));
39 INIT_LIST_HEAD(&(mgr->io_hooks));
40 mgr->num_io_hooks = 0;
46 int v3_dev_mgr_deinit(struct guest_info * info) {
47 struct vm_device * dev;
48 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
49 struct vm_device * tmp;
51 list_for_each_entry_safe(dev, tmp, &(mgr->dev_list), dev_link) {
52 v3_unattach_device(dev);
62 static int dev_mgr_add_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
63 list_add(&(dev->dev_link), &(mgr->dev_list));
69 static int dev_mgr_remove_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
70 list_del(&(dev->dev_link));
79 static int dev_mgr_add_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
80 list_add(&(hook->mgr_list), &(mgr->io_hooks));
86 static int dev_mgr_remove_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
87 list_del(&(hook->mgr_list));
94 static int dev_add_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
95 list_add(&(hook->dev_list), &(dev->io_hooks));
101 static int dev_remove_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
102 list_del(&(hook->dev_list));
112 static struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
113 struct dev_io_hook * tmp = NULL;
115 list_for_each_entry(tmp, &(mgr->io_hooks), mgr_list) {
116 if (tmp->port == port) {
125 static struct dev_io_hook * dev_find_io_hook(struct vm_device * dev, ushort_t port) {
126 struct dev_io_hook * tmp = NULL;
128 list_for_each_entry(tmp, &(dev->io_hooks), dev_list) {
129 if (tmp->port == port) {
139 int v3_dev_hook_io(struct vm_device *dev,
141 int (*read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev),
142 int (*write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) {
144 struct dev_io_hook *hook = (struct dev_io_hook *)V3_Malloc(sizeof(struct dev_io_hook));
151 if (v3_hook_io_port(dev->vm, port,
152 (int (*)(ushort_t, void *, uint_t, void *))read,
153 (int (*)(ushort_t, void *, uint_t, void *))write,
161 dev_mgr_add_io_hook(&(dev->vm->dev_mgr), hook);
162 dev_add_io_hook(dev, hook);
172 int v3_dev_unhook_io(struct vm_device *dev,
175 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
176 struct dev_io_hook * hook = dev_mgr_find_io_hook(mgr, port);
182 dev_mgr_remove_io_hook(mgr, hook);
183 dev_remove_io_hook(dev, hook);
185 return v3_unhook_io_port(dev->vm, port);
189 int v3_attach_device(struct guest_info * vm, struct vm_device * dev) {
190 struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
193 dev_mgr_add_device(mgr, dev);
199 int v3_unattach_device(struct vm_device * dev) {
200 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
202 dev->ops->deinit(dev);
203 dev_mgr_remove_device(mgr, dev);
213 static int dev_mgr_hook_mem(struct guest_info *vm,
214 struct vm_device *device,
219 struct dev_mem_hook * hook = (struct dev_mem_hook*)V3_Malloc(sizeof(struct dev_mem_hook));
220 // V3_Malloc(struct dev_mem_hook *, hook,sizeof(struct dev_mem_hook));
226 /* not implemented yet
227 hook_memory(vm->mem_map,
228 guest_physical_address_start,
229 guest_physical_address_end,
236 return -1; // remove when hook_memory works
239 hook->addr_start = start;
240 hook->addr_end = end;
247 static int dev_mgr_unhook_mem(struct vm_device *dev,
251 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
252 struct dev_mem_hook *hook = dev_mgr_find_mem_hook(mgr, start, end);
255 // Very bad - unhooking something that doesn't exist!
260 /* not implemented yet
261 return unhook_mem_port(vm->mem_map,
262 guest_physical_start,
263 guest_physical_end) ;
273 void PrintDebugDevMgr(struct guest_info * info) {
274 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
275 struct vm_device * dev;
276 PrintDebug("%d devices registered with manager\n", mgr->num_devs);
278 list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
280 PrintDebug("next..\n");
287 void PrintDebugDev(struct vm_device * dev) {
289 PrintDebug("Device: %s\n", dev->name);
290 PrintDebugDevIO(dev);
293 void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {
297 void PrintDebugDevIO(struct vm_device * dev) {
298 struct dev_io_hook * hook;
300 PrintDebug("IO Hooks(%d) for Device: %s\n", dev->num_io_hooks, dev->name);
302 list_for_each_entry(hook, &(dev->io_hooks), dev_list) {
303 PrintDebug("\tPort: 0x%x (read=0x%p), (write=0x%p)\n", hook->port,
304 (void *)(addr_t)(hook->read),
305 (void *)(addr_t)(hook->write));
312 void PrintDebugDevMgr(struct guest_info * info) {}
313 void PrintDebugDev(struct vm_device * dev) {}
314 void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {}
315 void PrintDebugDevIO(struct vm_device * dev) {}