-#include <palacios/vm_dev.h>
+/*
+ * 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/vmm_dev_mgr.h>
#include <palacios/vm_guest.h>
#include <palacios/vmm.h>
-#include <palacios/vmm_irq.h>
+#include <palacios/vmm_decoder.h>
-extern struct vmm_os_hooks *os_hooks;
-#ifndef NULL
-#define NULL 0
+#ifndef CONFIG_DEBUG_DEV_MGR
+#undef PrintDebug
+#define PrintDebug(fmt, args...)
#endif
-int dev_mgr_init(struct vmm_dev_mgr * mgr) {
- INIT_LIST_HEAD(&(mgr->dev_list));
- mgr->num_devs = 0;
+static struct hashtable * master_dev_table = NULL;
- INIT_LIST_HEAD(&(mgr->io_hooks));
- mgr->num_io_hooks = 0;
- return 0;
+static uint_t dev_hash_fn(addr_t key) {
+ char * name = (char *)key;
+ return v3_hash_buffer((uchar_t *)name, strlen(name));
}
-
-int dev_mgr_deinit(struct vmm_dev_mgr * mgr) {
- struct vm_device * dev;
-
- list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
- unattach_device(dev);
- free_device(dev);
- }
-
- return 0;
+static int dev_eq_fn(addr_t key1, addr_t key2) {
+ char * name1 = (char *)key1;
+ char * name2 = (char *)key2;
+
+ return (strcmp(name1, name2) == 0);
}
+int v3_init_devices() {
+ extern struct v3_device_info __start__v3_devices[];
+ extern struct v3_device_info __stop__v3_devices[];
+ struct v3_device_info * tmp_dev = __start__v3_devices;
+ int i = 0;
+#ifdef CONFIG_DEBUG_DEV_MGR
+ {
+ int num_devices = (__stop__v3_devices - __start__v3_devices) / sizeof(struct v3_device_info);
+ PrintDebug("%d Virtual devices registered with Palacios\n", num_devices);
+ }
+#endif
-int dev_mgr_add_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
- list_add(&(dev->dev_link), &(mgr->dev_list));
- mgr->num_devs++;
+ PrintDebug("Start addres=%p, Stop address=%p\n", __start__v3_devices, __stop__v3_devices);
- return 0;
-}
+ master_dev_table = v3_create_htable(0, dev_hash_fn, dev_eq_fn);
-int dev_mgr_remove_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
- list_del(&(dev->dev_link));
- mgr->num_devs--;
- return 0;
-}
+ while (tmp_dev != __stop__v3_devices) {
+ PrintDebug("Device: %s\n", tmp_dev->name);
+ if (v3_htable_search(master_dev_table, (addr_t)(tmp_dev->name))) {
+ PrintError("Multiple instance of device (%s)\n", tmp_dev->name);
+ return -1;
+ }
-/* IO HOOKS */
-int dev_mgr_add_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
- list_add(&(hook->mgr_list), &(mgr->io_hooks));
- mgr->num_io_hooks++;
- return 0;
-}
+ if (v3_htable_insert(master_dev_table,
+ (addr_t)(tmp_dev->name),
+ (addr_t)(tmp_dev->init)) == 0) {
+ PrintError("Could not add device %s to master list\n", tmp_dev->name);
+ return -1;
+ }
+ tmp_dev = &(__start__v3_devices[++i]);
+ }
-int dev_mgr_remove_io_hook(struct vmm_dev_mgr * mgr, struct dev_io_hook * hook) {
- list_del(&(hook->mgr_list));
- mgr->num_io_hooks--;
- return 0;
+ return 0;
}
-int dev_add_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
- list_add(&(hook->dev_list), &(dev->io_hooks));
- dev->num_io_hooks++;
- 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;
-int dev_remove_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
- list_del(&(hook->dev_list));
- dev->num_io_hooks--;
+ mgr->dev_table = v3_create_htable(0, dev_hash_fn, dev_eq_fn);
- return 0;
+ 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;
-
-
-struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
- struct dev_io_hook * tmp;
-
- list_for_each_entry(tmp, &(mgr->io_hooks), mgr_list) {
- if (tmp->port == port) {
- return tmp;
+ list_for_each_entry_safe(dev, tmp, &(mgr->dev_list), dev_link) {
+ v3_detach_device(dev);
+ v3_free_device(dev);
}
- }
- return NULL;
-}
-struct dev_io_hook * dev_find_io_hook(struct vm_device * dev, ushort_t port) {
- struct dev_io_hook * tmp;
-
- list_for_each_entry(tmp, &(dev->io_hooks), dev_list) {
- if (tmp->port == port) {
- return tmp;
- }
- }
- return NULL;
+ return 0;
}
+int v3_create_device(struct guest_info * info, const char * dev_name, void * cfg_data) {
+ int (*dev_init)(struct guest_info * info, void * cfg_data);
-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);
-}
+ dev_init = (void *)v3_htable_search(master_dev_table, (addr_t)dev_name);
+ if (dev_init == NULL) {
+ PrintError("Could not find device %s in master device table\n", dev_name);
+ return -1;
+ }
+ if (dev_init(info, cfg_data) == -1) {
+ PrintError("Could not initialize Device %s\n", dev_name);
+ return -1;
+ }
-/* IRQ HOOKS */
-/*
-int dev_mgr_add_irq_hook(struct vmm_dev_mgr * mgr, struct dev_irq_hook * hook) {
- list_add(&(hook->mgr_list), &(mgr->irq_hooks));
- mgr->num_irq_hooks++;
- return 0;
+ return 0;
}
-int dev_mgr_remove_irq_hook(struct vmm_dev_mgr * mgr, struct dev_irq_hook * hook) {
- list_del(&(hook->mgr_list));
- mgr->num_irq_hooks--;
-
- return 0;
+void v3_free_device(struct vm_device * dev) {
+ V3_Free(dev);
}
-int dev_add_irq_hook(struct vm_device * dev, struct dev_irq_hook * hook) {
- list_add(&(hook->dev_list), &(dev->irq_hooks));
- dev->num_irq_hooks++;
- return 0;
-}
-
-int dev_remove_irq_hook(struct vm_device * dev, struct dev_irq_hook * hook) {
- list_del(&(hook->dev_list));
- dev->num_irq_hooks--;
+struct vm_device * v3_find_dev(struct guest_info * info, const char * dev_name) {
+ struct vmm_dev_mgr * mgr = &(info->dev_mgr);
- return 0;
+ return (struct vm_device *)v3_htable_search(mgr->dev_table, (addr_t)dev_name);
}
+/****************************************************************/
+/* The remaining functions are called by the devices themselves */
+/****************************************************************/
-
-
-struct dev_irq_hook * dev_mgr_find_irq_hook(struct vmm_dev_mgr * mgr, uint_t irq) {
- struct dev_irq_hook * tmp;
-
- list_for_each_entry(tmp, &(mgr->irq_hooks), mgr_list) {
- if (tmp->irq == irq) {
- return tmp;
- }
- }
- return NULL;
+/* IO HOOKS */
+int v3_dev_hook_io(struct vm_device * dev, uint16_t port,
+ int (*read)(uint16_t port, void * dst, uint_t length, struct vm_device * dev),
+ int (*write)(uint16_t port, void * src, uint_t length, struct vm_device * dev)) {
+ return 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);
}
-struct dev_irq_hook * dev_find_irq_hook(struct vm_device * dev, uint_t irq) {
- struct dev_irq_hook * tmp;
- list_for_each_entry(tmp, &(dev->irq_hooks), dev_list) {
- if (tmp->irq == irq) {
- return tmp;
- }
- }
- return NULL;
+int v3_dev_unhook_io(struct vm_device * dev, uint16_t port) {
+ return v3_unhook_io_port(dev->vm, port);
}
+int v3_detach_device(struct vm_device * dev) {
+ struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
-int dev_hook_irq(struct vm_device *dev,
- uint_t irq,
- int (*handler)(uint_t irq, struct vm_device * dev)) {
-
- struct dev_irq_hook *hook = os_hooks->malloc(sizeof(struct dev_irq_hook));
-
- if (!hook) {
- return -1;
- }
+ dev->ops->free(dev);
+ list_del(&(dev->dev_link));
+ mgr->num_devs--;
- if (hook_irq(&(dev->vm->irq_map), irq,
- (int (*)(uint_t, void *))handler,
- (void *)dev) == 0) {
+ dev->vm = NULL;
- hook->dev = dev;
- hook->irq = irq;
- hook->handler = handler;
-
- dev_mgr_add_irq_hook(&(dev->vm->dev_mgr), hook);
- dev_add_irq_hook(dev, hook);
- } else {
return -1;
- }
-
- return 0;
}
-int dev_unhook_irq(struct vm_device * dev,
- uint_t irq) {
+struct vm_device * v3_allocate_device(char * name,
+ struct v3_device_ops * ops,
+ void * private_data) {
+ struct vm_device * dev = NULL;
- struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
- struct dev_irq_hook * hook = dev_mgr_find_irq_hook(mgr, irq);
+ dev = (struct vm_device*)V3_Malloc(sizeof(struct vm_device));
- if (!hook) {
- return -1;
- }
+ strncpy(dev->name, name, 32);
+ dev->ops = ops;
+ dev->private_data = private_data;
- dev_mgr_remove_irq_hook(mgr, hook);
- dev_remove_irq_hook(dev, hook);
+ dev->vm = NULL;
- return unhook_irq(&(dev->vm->irq_map), irq);
+ return dev;
}
-*/
-
-
+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++;
-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;
-}
-
-int unattach_device(struct vm_device * dev) {
- struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
-
- dev->ops->deinit(dev);
- dev_mgr_remove_device(mgr, dev);
- dev->vm = NULL;
+ v3_htable_insert(mgr->dev_table, (addr_t)(dev->name), (addr_t)dev);
- return 0;
+ return 0;
}
+#ifdef CONFIG_DEBUG_DEV_MGR
+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);
-int dev_mgr_hook_mem(struct guest_info *vm,
- struct vm_device *device,
- void *start,
- void *end)
-{
-
- struct dev_mem_hook *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);
-
- */
-
- return -1; // remove when hook_memory works
-
-
- hook->addr_start = start;
- hook->addr_end = end;
-
- return 0;
-
-}
-
-
-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;
-}
-
-
-
-
-void PrintDebugDevMgr(struct vmm_dev_mgr * mgr) {
- struct vm_device * dev;
- PrintDebug("%d devices registered with manager\n", mgr->num_devs);
-
- list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
- PrintDebugDev(dev);
- PrintDebug("next..\n");
- }
+ 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);
}
-void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {
-}
-
-void PrintDebugDevIO(struct vm_device * dev) {
- struct dev_io_hook * hook;
-
- 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%x), (write=0x%x)\n", hook->port, hook->read, hook->write);
- }
- return;
-}
+#else
+void PrintDebugDevMgr(struct guest_info * info) {}
+void PrintDebugDev(struct vm_device * dev) {}
+#endif
