+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
#include <palacios/vm_dev.h>
#include <palacios/vmm_dev_mgr.h>
#include <palacios/vm_guest.h>
#include <palacios/vmm.h>
+#include <palacios/vmm_decoder.h>
-extern struct vmm_os_hooks *os_hooks;
-
-#ifndef NULL
-#define NULL 0
+#ifndef DEBUG_DEV_MGR
+#undef PrintDebug
+#define PrintDebug(fmt, args...)
#endif
-int dev_mgr_init(struct vmm_dev_mgr * mgr) {
- mgr->dev_list.head = NULL;
- mgr->dev_list.num_devs = 0;
- return 0;
-}
-int dev_mgr_deinit(struct vmm_dev_mgr * mgr)
-{
- struct vm_device * dev = mgr->dev_list.head;
-
- while (dev) {
- unattach_device(dev);
- free_device(dev);
- dev = dev->next;
- }
- return 0;
-}
+int v3_init_dev_mgr(struct guest_info * info) {
+ struct vmm_dev_mgr * mgr = &(info->dev_mgr);
+ INIT_LIST_HEAD(&(mgr->dev_list));
+ mgr->num_devs = 0;
+ INIT_LIST_HEAD(&(mgr->io_hooks));
+ mgr->num_io_hooks = 0;
+ INIT_LIST_HEAD(&(mgr->mem_hooks));
+ mgr->num_mem_hooks = 0;
+ INIT_LIST_HEAD(&(mgr->msr_hooks));
+ mgr->num_msr_hook = 0;
-int dev_mgr_add_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
- dev->next = mgr->dev_list.head;
- dev->prev = 0;
- if (dev->next) {
- dev->next->prev = dev;
- }
- mgr->dev_list.head = dev;
+ return 0;
+}
- mgr->dev_list.num_devs++;
- return 0;
-}
+int v3_dev_mgr_deinit(struct guest_info * info) {
+ struct vm_device * dev;
+ struct vmm_dev_mgr * mgr = &(info->dev_mgr);
+ struct vm_device * tmp;
-int dev_mgr_remove_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
- if (mgr->dev_list.head == dev) {
- mgr->dev_list.head = dev->next;
- } else {
- dev->prev->next = dev->next;
- }
- if (dev->next) {
- dev->next->prev = dev->prev;
- }
-
- mgr->dev_list.num_devs--;
+ list_for_each_entry_safe(dev, tmp, &(mgr->dev_list), dev_link) {
+ v3_unattach_device(dev);
+ v3_free_device(dev);
+ }
- return 0;
+ return 0;
}
-int dev_mgr_add_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
- hook->mgr_next = mgr->io_hooks.head;
- hook->mgr_prev = NULL;
- if (hook->mgr_next) {
- hook->mgr_next->mgr_prev = hook;
- }
- mgr->io_hooks.head = hook;
- mgr->io_hooks.num_hooks++;
+int v3_attach_device(struct guest_info * vm, struct vm_device * dev) {
+ struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
+
+ dev->vm = vm;
+
+ list_add(&(dev->dev_link), &(mgr->dev_list));
+ mgr->num_devs++;
+
+ dev->ops->init(dev);
- return 0;
+ return 0;
}
+int v3_unattach_device(struct vm_device * dev) {
+ struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
-int dev_mgr_remove_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
- if (mgr->io_hooks.head == hook) {
- mgr->io_hooks.head = hook->mgr_next;
- } else {
- hook->mgr_prev->mgr_next = hook->mgr_next;
- }
+ dev->ops->deinit(dev);
- if (hook->mgr_next) {
- hook->mgr_next->mgr_prev = hook->mgr_prev;
- }
-
- mgr->io_hooks.num_hooks--;
+ list_del(&(dev->dev_link));
+ mgr->num_devs--;
+
+ dev->vm = NULL;
- return 0;
+ return 0;
}
-int dev_add_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
- hook->dev_next = dev->io_hooks.head;
- hook->dev_prev = NULL;
- if (hook->dev_next) {
- hook->dev_next->dev_prev = hook;
- }
- dev->io_hooks.head = hook;
- dev->io_hooks.num_hooks++;
- return 0;
-}
+/* IO HOOKS */
+static struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
+ struct dev_io_hook * tmp = NULL;
-int dev_remove_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
- if (dev->io_hooks.head == hook) {
- dev->io_hooks.head = hook->dev_next;
- } else {
- hook->dev_prev->dev_next = hook->dev_next;
- }
+ list_for_each_entry(tmp, &(mgr->io_hooks), mgr_list) {
+ if (tmp->port == port) {
+ return tmp;
+ }
+ }
+ return NULL;
+}
- if (hook->dev_next) {
- hook->dev_next->dev_prev = hook->dev_prev;
- }
-
- dev->io_hooks.num_hooks--;
- return 0;
-}
-struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
- struct dev_io_hook * tmp = mgr->io_hooks.head;
- while (tmp) {
- if (tmp->port == port) {
- break;
+int v3_dev_hook_io(struct vm_device *dev,
+ ushort_t port,
+ int (*read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev),
+ int (*write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) {
+
+ struct dev_io_hook *hook = (struct dev_io_hook *)V3_Malloc(sizeof(struct dev_io_hook));
+ struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
+
+ if (!hook) {
+ return -1;
}
- tmp = tmp->mgr_next;
- }
- return tmp;
-}
-struct dev_io_hook * dev_find_io_hook(struct vm_device * dev, ushort_t port) {
- struct dev_io_hook * tmp = dev->io_hooks.head;
+ if (v3_hook_io_port(dev->vm, port,
+ (int (*)(ushort_t, void *, uint_t, void *))read,
+ (int (*)(ushort_t, void *, uint_t, void *))write,
+ (void *)dev) == 0) {
- while (tmp) {
- if (tmp->port == port) {
- break;
+ hook->dev = dev;
+ hook->port = port;
+ hook->read = read;
+ hook->write = write;
+
+ list_add(&(hook->mgr_list), &(mgr->io_hooks));
+ mgr->num_io_hooks++;
+
+ list_add(&(hook->dev_list), &(dev->io_hooks));
+ dev->num_io_hooks++;
+ } else {
+
+ return -1;
}
- tmp = tmp->dev_next;
- }
- return tmp;
+ return 0;
}
+int v3_dev_unhook_io(struct vm_device *dev,
+ ushort_t port) {
+ struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
+ struct dev_io_hook * hook = dev_mgr_find_io_hook(mgr, port);
+ if (!hook) {
+ return -1;
+ }
-int attach_device(struct guest_info * vm, struct vm_device * dev) {
- struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
-
- dev->vm = vm;
- dev_mgr_add_device(mgr, dev);
- dev->ops->init(dev);
-
- return 0;
-}
+ list_del(&(hook->mgr_list));
+ mgr->num_io_hooks--;
-int unattach_device(struct vm_device * dev) {
- struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
+ list_del(&(hook->dev_list));
+ dev->num_io_hooks--;
- dev->ops->deinit(dev);
- dev_mgr_remove_device(mgr, dev);
- dev->vm = NULL;
- return 0;
+ return v3_unhook_io_port(dev->vm, port);
}
-int dev_hook_io(struct vm_device *dev,
- ushort_t port,
- int (*read)(ushort_t port, void * dst, uint_t length, struct vm_device * dev),
- int (*write)(ushort_t port, void * src, uint_t length, struct vm_device * dev)) {
- struct dev_io_hook *hook = os_hooks->malloc(sizeof(struct dev_io_hook));
-
- if (!hook) {
- return -1;
- }
- if (hook_io_port(&(dev->vm->io_map), port,
- (int (*)(ushort_t, void *, uint_t, void *))read,
- (int (*)(ushort_t, void *, uint_t, void *))write,
- (void *)dev) == 0) {
- hook->dev = dev;
- hook->port = port;
- hook->read = read;
- hook->write = write;
-
- dev_mgr_add_io_hook(&(dev->vm->dev_mgr), hook);
- dev_add_io_hook(dev, hook);
- } else {
- return -1;
- }
- return 0;
-}
-int dev_unhook_io(struct vm_device *dev,
- ushort_t port) {
- struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
- struct dev_io_hook * hook = dev_mgr_find_io_hook(mgr, port);
- if (!hook) {
- return -1;
- }
- dev_mgr_remove_io_hook(mgr, hook);
- dev_remove_io_hook(dev, hook);
- return unhook_io_port(&(dev->vm->io_map), port);
-}
-int dev_mgr_hook_mem(struct guest_info *vm,
- struct vm_device *device,
- void *start,
- void *end)
-{
- struct dev_mem_hook *hook = os_hooks->malloc(sizeof(struct dev_mem_hook));
-
- if (!hook) {
- return -1;
- }
+#if 0
+static int dev_mgr_hook_mem(struct guest_info *vm,
+ struct vm_device *device,
+ void *start,
+ void *end)
+{
+ struct dev_mem_hook * hook = (struct dev_mem_hook*)V3_Malloc(sizeof(struct dev_mem_hook));
+ // V3_Malloc(struct dev_mem_hook *, hook,sizeof(struct dev_mem_hook));
-
+ if (!hook) {
+ return -1;
+ }
- /* not implemented yet
- hook_memory(vm->mem_map,
- guest_physical_address_start,
- guest_physical_address_end,
- read,
- write,
- device);
+ /* not implemented yet
+ hook_memory(vm->mem_map,
+ guest_physical_address_start,
+ guest_physical_address_end,
+ read,
+ write,
+ device);
- */
+ */
- return -1; // remove when hook_memory works
+ return -1; // remove when hook_memory works
- hook->addr_start = start;
- hook->addr_end = end;
+ hook->addr_start = start;
+ hook->addr_end = end;
- return 0;
+ return 0;
}
-int dev_mgr_unhook_mem(struct guest_info *vm,
- struct vm_device *device,
- void *start,
- void *end)
-{
- struct dev_mem_hook *hook = device->mem_hooks.head;
-
- while (hook) {
- if (((hook->addr_start) == start) && (hook->addr_end == end)) {
- break;
- }
- }
-
- if (!hook) {
- // Very bad - unhooking something that doesn't exist!
+static int dev_mgr_unhook_mem(struct vm_device *dev,
+ addr_t start,
+ addr_t end) {
+ /*
+ struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
+ struct dev_mem_hook *hook = dev_mgr_find_mem_hook(mgr, start, end);
+
+ if (!hook) {
+ // Very bad - unhooking something that doesn't exist!
+ return -1;
+ }
+ */
+
+ /* not implemented yet
+ return unhook_mem_port(vm->mem_map,
+ guest_physical_start,
+ guest_physical_end) ;
+
+ */
return -1;
- }
-
+}
+#endif
- /* not implemented yet
- return unhook_mem_port(vm->mem_map,
- guest_physical_start,
- guest_physical_end) ;
- */
- return -1;
-}
+#ifdef DEBUG_DEV_MGR
-void PrintDebugDevMgr(struct vmm_dev_mgr * mgr) {
- struct vm_device * dev = mgr->dev_list.head;
+void PrintDebugDevMgr(struct guest_info * info) {
+ struct vmm_dev_mgr * mgr = &(info->dev_mgr);
+ struct vm_device * dev;
+ PrintDebug("%d devices registered with manager\n", mgr->num_devs);
- while (dev) {
- PrintDebugDev(dev);
- dev = dev->next;
- }
+ list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
+ PrintDebugDev(dev);
+ PrintDebug("next..\n");
+ }
- return;
+ return;
}
void PrintDebugDev(struct vm_device * dev) {
- PrintDebug("Device: %s\n", dev->name);
- PrintDebugDevIO(dev);
+ PrintDebug("Device: %s\n", dev->name);
+ PrintDebugDevIO(dev);
}
void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {
}
void PrintDebugDevIO(struct vm_device * dev) {
- struct dev_io_hook * hook = dev->io_hooks.head;
-
- PrintDebug("IO Hooks (%d) for Device: %s\n", dev->io_hooks.num_hooks, dev->name);
-
- while (hook) {
- PrintDebug("\tPort: 0x%x (read=0x%x), (write=0x%x)\n", hook->port, hook->read, hook->write);
- hook = hook->dev_next;
- }
+ struct dev_io_hook * hook;
- return;
+ PrintDebug("IO Hooks(%d) for Device: %s\n", dev->num_io_hooks, dev->name);
+
+ list_for_each_entry(hook, &(dev->io_hooks), dev_list) {
+ PrintDebug("\tPort: 0x%x (read=0x%p), (write=0x%p)\n", hook->port,
+ (void *)(addr_t)(hook->read),
+ (void *)(addr_t)(hook->write));
+ }
+
+ return;
}
+
+#else
+void PrintDebugDevMgr(struct guest_info * info) {}
+void PrintDebugDev(struct vm_device * dev) {}
+void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {}
+void PrintDebugDevIO(struct vm_device * dev) {}
+#endif