--- /dev/null
+/*
+ * 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>
+
+
+#ifndef DEBUG_DEV_MGR
+#undef PrintDebug
+#define PrintDebug(fmt, args...)
+#endif
+
+
+
+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;
+
+ 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;
+
+ list_for_each_entry_safe(dev, tmp, &(mgr->dev_list), dev_link) {
+ v3_unattach_device(dev);
+ v3_free_device(dev);
+ }
+
+ return 0;
+}
+
+
+
+
+static 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++;
+
+ return 0;
+}
+
+static int dev_mgr_remove_device(struct vmm_dev_mgr * mgr, struct vm_device * dev) {
+ list_del(&(dev->dev_link));
+ mgr->num_devs--;
+
+ return 0;
+}
+
+
+
+/* IO HOOKS */
+static 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;
+}
+
+
+static 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;
+}
+
+
+static 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;
+}
+
+
+static int dev_remove_io_hook(struct vm_device * dev, struct dev_io_hook * hook) {
+ list_del(&(hook->dev_list));
+ dev->num_io_hooks--;
+
+ return 0;
+}
+
+
+
+
+
+static struct dev_io_hook * dev_mgr_find_io_hook(struct vmm_dev_mgr * mgr, ushort_t port) {
+ struct dev_io_hook * tmp = NULL;
+
+ list_for_each_entry(tmp, &(mgr->io_hooks), mgr_list) {
+ if (tmp->port == port) {
+ return tmp;
+ }
+ }
+ return NULL;
+}
+
+
+/*
+static struct dev_io_hook * dev_find_io_hook(struct vm_device * dev, ushort_t port) {
+ struct dev_io_hook * tmp = NULL;
+
+ list_for_each_entry(tmp, &(dev->io_hooks), dev_list) {
+ if (tmp->port == port) {
+ return tmp;
+ }
+ }
+ return NULL;
+}
+*/
+
+
+
+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));
+
+ if (!hook) {
+ return -1;
+ }
+
+
+ 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) {
+
+ 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 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;
+ }
+
+ dev_mgr_remove_io_hook(mgr, hook);
+ dev_remove_io_hook(dev, hook);
+
+ return v3_unhook_io_port(dev->vm, port);
+}
+
+
+int v3_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 v3_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;
+
+ return 0;
+}
+
+
+
+
+#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);
+
+ */
+
+ return -1; // remove when hook_memory works
+
+
+ hook->addr_start = start;
+ hook->addr_end = end;
+
+ return 0;
+
+}
+
+
+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
+
+
+#ifdef 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);
+
+ list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
+ PrintDebugDev(dev);
+ PrintDebug("next..\n");
+ }
+
+ return;
+}
+
+
+void PrintDebugDev(struct vm_device * 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;
+
+ 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) {}
+void PrintDebugDevMgrIO(struct vmm_dev_mgr * mgr) {}
+void PrintDebugDevIO(struct vm_device * dev) {}
+#endif
