-
-#include <palacios/vmm_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/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, struct guest_info *vm)
-{
- mgr->vm=vm;
- mgr->dev_list=NULL;
- mgr->num_devices=0;
- return 0;
-}
+//DEFINE_HASHTABLE_INSERT(insert_dev, const char *, struct vm_device *);
+//DEFINE_HASHTABLE_SEARCH(find_dev, const char *, struct vm_device *);
+//DEFINE_HASHTABLE_REMOVE(remove_dev, const char *, struct vm_device *, 0);
-int dev_mgr_deinit(struct vmm_dev_mgr *mgr)
-{
- int rc;
+int v3_init_dev_mgr(struct guest_info * info) {
+ struct vmm_dev_mgr * mgr = &(info->dev_mgr);
- while (mgr->dev_list) {
- rc=dev_mgr_detach_device(mgr->vm,mgr->dev_list);
- if (rc) {
- // Bad bad bad
- }
- }
- return 0;
-}
+ INIT_LIST_HEAD(&(mgr->dev_list));
+ mgr->num_devs = 0;
-int dev_mgr_attach_device(struct guest_info *vm, struct vm_device *device)
-{
- struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
-
- if (device->io_hooks || device->mem_hooks) {
- return -1;
- }
-
- device->next = mgr->dev_list;
- device->prev = 0;
- if (device->next) {
- device->next->prev = device;
- }
- mgr->dev_list = device;
-
- device->vm=vm;
+ // mgr->dev_table = v3_create_htable(0, , );
- return 0;
+ return 0;
}
-int dev_mgr_detach_device(struct guest_info *vm, struct vm_device *device)
-{
- if (device->prev==0) {
- vm->dev_mgr.dev_list = device->next;
- } else {
- device->prev->next = device->next;
- }
- if (device->next) {
- device->next->prev=device->prev;
- }
-
- // avoid interrupts here
- device->deinit_device(device);
+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_detach_device(dev);
+ v3_free_device(dev);
+ }
- device->vm=NULL;
- return 0;
+ return 0;
}
-#define INSERT_FRONT(listhead,item) \
- do { \
- if (!(listhead)) { \
- (listhead)=(item); \
- (item)->prev=NULL; \
- (item)->next=NULL; \
- } else { \
- (item)->prev=NULL; \
- (item)->next=(listhead); \
- if ((listhead)->next) { \
- (listhead)->next->prev=(item); \
- } \
- (listhead)=(item); \
- } \
- } while (0)
-
-#define DELETE(listhead,item) \
- do { \
- if ((item)->prev) { \
- (item)->prev->next=(item)->next; \
- } else { \
- (listhead)=(item)->next; \
- } \
- if ((item)->next) { \
- (item)->next->prev=(item)->prev; \
- } \
- } while (0)
-
-
-
-
-int dev_mgr_hook_io(struct guest_info *vm,
- struct vm_device *device,
- ushort_t portno,
- enum access_control control,
- enum access_type atype)
-{
- struct vm_device_io_hook *hook = os_hooks->malloc(sizeof(struct vm_device_io_hook));
-
- if (!hook) {
- return -1;
- }
-
- int (*read)(ushort_t, void *, uint_t, void *) = NULL;
- int (*write)(ushort_t, void *, uint_t, void *) = NULL;
-
- switch (control) {
- case DEVICE_EMULATED:
- switch (atype) {
- case DEVICE_READ:
- read = (int (*)(ushort_t, void *,uint_t, void *)) (device->read_io_port);
- break;
- case DEVICE_WRITE:
- write = (int (*)(ushort_t, void *, uint_t, void *)) (device->write_io_port);
- break;
- case DEVICE_READWRITE:
- read = (int (*)(ushort_t, void *, uint_t, void *)) (device->read_io_port);
- write = (int (*)(ushort_t, void *, uint_t, void *)) (device->write_io_port);
- break;
- }
- break;
- case DEVICE_PASSTHROUGH:
- read=write=NULL;
- break;
- }
-
- hook_io_port(&(vm->io_map),
- portno,
- read,
- write,
- device);
-
- hook->control=control;
- hook->atype=atype;
- hook->guest_port = portno;
-
- INSERT_FRONT(device->io_hooks,hook);
+
+int v3_attach_device(struct guest_info * vm, struct vm_device * dev) {
+ struct vmm_dev_mgr *mgr= &(vm->dev_mgr);
- return 0;
+ dev->vm = vm;
+
+ list_add(&(dev->dev_link), &(mgr->dev_list));
+ mgr->num_devs++;
+
+ dev->ops->init(dev);
+
+ return 0;
}
+int v3_detach_device(struct vm_device * dev) {
+ struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
-int dev_mgr_unhook_io(struct guest_info *vm,
- struct vm_device *device,
- ushort_t portno)
-{
- struct vm_device_io_hook *hook = device->io_hooks;
+ dev->ops->deinit(dev);
- while (hook) {
- if (hook->guest_port==portno) {
- DELETE(device->io_hooks,hook);
- break;
- }
- }
+ list_del(&(dev->dev_link));
+ mgr->num_devs--;
- if (!hook) {
- // Very bad - unhooking something that doesn't exist!
- return -1;
- }
+ dev->vm = NULL;
- return unhook_io_port(&(vm->io_map),
- portno);
+ return 0;
}
-int dev_mgr_hook_mem(struct guest_info *vm,
- struct vm_device *device,
- void *guest_physical_address_start,
- void *guest_physical_address_end,
- enum access_control control,
- enum access_type atype)
-{
-
- struct vm_device_mem_hook *hook = os_hooks->malloc(sizeof(struct vm_device_mem_hook));
-
- if (!hook) {
- return -1;
- }
-
- int (*read)(ushort_t, void *, uint_t, void *) = NULL;
- int (*write)(ushort_t, void *, uint_t, void *) = NULL;
-
- switch (control) {
- case DEVICE_EMULATED:
- switch (atype) {
- case DEVICE_READ:
- read = (int (*)(ushort_t, void *, uint_t, void *))(device->read_mapped_memory);
- break;
- case DEVICE_WRITE:
- write = (int (*)(ushort_t, void *, uint_t, void *))(device->write_mapped_memory);
- break;
- case DEVICE_READWRITE:
- read = (int (*)(ushort_t, void *, uint_t, void *))(device->read_mapped_memory);
- write = (int (*)(ushort_t, void *, uint_t, void *))(device->write_mapped_memory);
- break;
- }
- break;
- case DEVICE_PASSTHROUGH:
- read=write=NULL;
- break;
- }
-
-
- /* 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->control=control;
- hook->atype=atype;
- hook->guest_physical_start = guest_physical_address_start;
- hook->guest_physical_end = guest_physical_address_end;
-
- INSERT_FRONT(device->mem_hooks,hook);
- return 0;
-
+/* 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);
}
-int dev_mgr_unhook_mem(struct guest_info *vm,
- struct vm_device *device,
- void *guest_physical_start,
- void *guest_physical_end)
-{
- struct vm_device_mem_hook *hook = device->mem_hooks;
+int v3_dev_unhook_io(struct vm_device * dev, uint16_t port) {
+ return v3_unhook_io_port(dev->vm, port);
+}
- while (hook) {
- if (hook->guest_physical_start==guest_physical_start &&
- hook->guest_physical_end==guest_physical_end) {
- DELETE(device->mem_hooks,hook);
- break;
- }
- }
- 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;
-}
+#ifdef DEBUG_DEV_MGR
+void PrintDebugDevMgr(struct guest_info * info) {
+ struct vmm_dev_mgr * mgr = &(info->dev_mgr);
+ struct vm_device * dev;
-int dev_mgr_unhook_device(struct guest_info *vm,
- struct vm_device *device)
-{
- struct vm_device_io_hook *iohook=device->io_hooks;
- struct vm_device_mem_hook *memhook=device->mem_hooks;
+ PrintDebug("%d devices registered with manager\n", mgr->num_devs);
- while (iohook) {
- if (dev_mgr_unhook_io(vm,device,iohook->guest_port)) {
- return -1;
+ list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
+ PrintDebugDev(dev);
+ PrintDebug("next..\n");
}
- }
- while (memhook) {
- if (dev_mgr_unhook_mem(vm,device,memhook->guest_physical_start, memhook->guest_physical_end)) {
- return -1;
- }
- }
+ return;
+}
+
- return 0;
+void PrintDebugDev(struct vm_device * dev) {
+ PrintDebug("Device: %s\n", dev->name);
}
+
+
+
+#else
+void PrintDebugDevMgr(struct guest_info * info) {}
+void PrintDebugDev(struct vm_device * dev) {}
+#endif