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;
42 INIT_LIST_HEAD(&(mgr->mem_hooks));
43 mgr->num_mem_hooks = 0;
45 INIT_LIST_HEAD(&(mgr->msr_hooks));
46 mgr->num_msr_hook = 0;
52 int v3_dev_mgr_deinit(struct guest_info * info) {
53 struct vm_device * dev;
54 struct vmm_dev_mgr * mgr = &(info->dev_mgr);
55 struct vm_device * tmp;
57 list_for_each_entry_safe(dev, tmp, &(mgr->dev_list), dev_link) {
58 v3_unattach_device(dev);
67 int v3_attach_device(struct guest_info * vm, struct vm_device * dev) {
68 struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
72 list_add(&(dev->dev_link), &(mgr->dev_list));
80 int v3_unattach_device(struct vm_device * dev) {
81 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
83 dev->ops->deinit(dev);
85 list_del(&(dev->dev_link));
98 static struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
99 struct dev_io_hook * tmp = NULL;
101 list_for_each_entry(tmp, &(mgr->io_hooks), mgr_list) {
102 if (tmp->port == port) {
113 int v3_dev_hook_io(struct vm_device *dev,
115 int (*read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev),
116 int (*write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) {
118 struct dev_io_hook *hook = (struct dev_io_hook *)V3_Malloc(sizeof(struct dev_io_hook));
119 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
126 if (v3_hook_io_port(dev->vm, port,
127 (int (*)(ushort_t, void *, uint_t, void *))read,
128 (int (*)(ushort_t, void *, uint_t, void *))write,
136 list_add(&(hook->mgr_list), &(mgr->io_hooks));
139 list_add(&(hook->dev_list), &(dev->io_hooks));
150 int v3_dev_unhook_io(struct vm_device *dev,
152 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
153 struct dev_io_hook * hook = dev_mgr_find_io_hook(mgr, port);
159 list_del(&(hook->mgr_list));
162 list_del(&(hook->dev_list));
166 return v3_unhook_io_port(dev->vm, port);
187 static int dev_mgr_hook_mem(struct guest_info *vm,
188 struct vm_device *device,
193 struct dev_mem_hook * hook = (struct dev_mem_hook*)V3_Malloc(sizeof(struct dev_mem_hook));
194 // V3_Malloc(struct dev_mem_hook *, hook,sizeof(struct dev_mem_hook));
200 /* not implemented yet
201 hook_memory(vm->mem_map,
202 guest_physical_address_start,
203 guest_physical_address_end,
210 return -1; // remove when hook_memory works
213 hook->addr_start = start;
214 hook->addr_end = end;
221 static int dev_mgr_unhook_mem(struct vm_device *dev,
225 struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
226 struct dev_mem_hook *hook = dev_mgr_find_mem_hook(mgr, start, end);
229 // Very bad - unhooking something that doesn't exist!
234 /* not implemented yet
235 return unhook_mem_port(vm->mem_map,
236 guest_physical_start,
237 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%p), (write=0x%p)\n", hook->port,
299 (void *)(addr_t)(hook->read),
300 (void *)(addr_t)(hook->write));
307 void PrintDebugDevMgr(struct guest_info * info) {}
308 void PrintDebugDev(struct vm_device * dev) {}
309 void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {}
310 void PrintDebugDevIO(struct vm_device * dev) {}