#include <palacios/vmm.h>
#include <palacios/vmm_decoder.h>
+#ifdef V3_CONFIG_CHECKPOINT
+#include <palacios/vmm_checkpoint.h>
+#endif
+
-#ifndef CONFIG_DEBUG_DEV_MGR
+#ifndef V3_CONFIG_DEBUG_DEV_MGR
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
struct v3_device_info * tmp_dev = __start__v3_devices;
int i = 0;
-#ifdef CONFIG_DEBUG_DEV_MGR
+#ifdef V3_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);
}
+int V3_deinit_devices() {
+ v3_free_htable(master_dev_table, 0, 0);
+ return 0;
+}
+
+
int v3_init_dev_mgr(struct v3_vm_info * vm) {
struct vmm_dev_mgr * mgr = &(vm->dev_mgr);
return 0;
}
+#ifdef V3_CONFIG_CHECKPOINT
+
+int v3_save_vm_devices(struct v3_vm_info * vm, struct v3_chkpt * chkpt) {
+ struct vmm_dev_mgr * mgr = &(vm->dev_mgr);
+ struct vm_device * dev;
+ struct v3_chkpt_ctx * dev_mgr_ctx = NULL;
+
+ uint32_t num_saved_devs = 0;
+ uint32_t table_len = mgr->num_devs * 32;
+ char * name_table = NULL;
+ uint32_t tbl_offset = 0;
+
+ name_table = V3_Malloc(table_len);
+
+ memset(name_table, 0, table_len);
+
+
+ dev_mgr_ctx = v3_chkpt_open_ctx(chkpt, NULL, "devices");
+
+ list_for_each_entry(dev, &(mgr->dev_list), dev_link) {
+
+ if (dev->ops->save) {
+ struct v3_chkpt_ctx * dev_ctx = NULL;
+
+
+ dev_ctx = v3_chkpt_open_ctx(chkpt, dev_mgr_ctx, dev->name);
+
+ dev->ops->save(dev_ctx, dev->private_data);
+
+ v3_chkpt_close_ctx(dev_ctx);
+
+ // Error checking??
+
+ strncpy(name_table + tbl_offset, dev->name, 32);
+ tbl_offset += 32;
+ num_saved_devs++;
+ } else {
+ PrintError("Error: %s save() not implemented\n", dev->name);
+ }
+ }
+
+
+ // Specify which devices were saved
+ v3_chkpt_save(dev_mgr_ctx, "num_devs", 4, &num_saved_devs);
+ v3_chkpt_save(dev_mgr_ctx, "names", table_len, name_table);
+ V3_Free(name_table);
+
+ v3_chkpt_close_ctx(dev_mgr_ctx);
+
+ return 0;
+}
+
+
+int v3_load_vm_devices(struct v3_vm_info * vm, struct v3_chkpt * chkpt) {
+
+ PrintError("TODO... \n");
+
+ // Read devices from checkpoint data
+ // selectively load them
+
+ return 0;
+}
+
+
+#endif
+
static int free_frontends(struct v3_vm_info * vm, struct vmm_dev_mgr * mgr);
int v3_deinit_dev_mgr(struct v3_vm_info * vm) {
/* The remaining functions are called by the devices themselves */
/****************************************************************/
-struct dev_io_hook {
- uint16_t port;
+typedef enum {DEV_IO_HOOK, DEV_MSR_HOOK, DEV_CPUID_HOOK, DEV_MEM_HOOK, DEV_HCALL_HOOK} dev_rsrc_type_t;
- struct list_head node;
+struct dev_rsrc {
+ dev_rsrc_type_t type;
+ uint64_t rsrc;
+ struct list_head node;
};
-/* IO HOOKS */
+
+
+static int add_resource(struct vm_device * dev, dev_rsrc_type_t type, uint64_t rsrc_id) {
+ struct dev_rsrc * resource = NULL;
+
+ resource = V3_Malloc(sizeof(struct dev_rsrc));
+
+ if (resource == NULL) {
+ PrintError("Error: Could not allocate device resource\n");
+ return -1;
+ }
+
+ resource->rsrc = rsrc_id;
+ resource->type = type;
+
+ list_add(&(resource->node), &(dev->res_hooks));
+ return 0;
+}
+
+static int free_resource(struct vm_device * dev, dev_rsrc_type_t type, uint64_t rsrc_id) {
+ struct dev_rsrc * resource = NULL;
+ struct dev_rsrc * tmp;
+
+ list_for_each_entry_safe(resource, tmp, &(dev->res_hooks), node) {
+ if ((resource->type == type) &&
+ (resource->rsrc == rsrc_id)) {
+
+ list_del(&(resource->node));
+ V3_Free(resource);
+
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+
int v3_dev_hook_io(struct vm_device * dev, uint16_t port,
int (*read)(struct guest_info * core, uint16_t port, void * dst, uint_t length, void * priv_data),
int (*write)(struct guest_info * core, uint16_t port, void * src, uint_t length, void * priv_data)) {
- struct dev_io_hook * io_hook = NULL;
int ret = 0;
- ret = v3_hook_io_port(dev->vm, port,
- (int (*)(struct guest_info * core, ushort_t, void *, uint_t, void *))read,
- (int (*)(struct guest_info * core, ushort_t, void *, uint_t, void *))write,
- (void *)dev->private_data);
+ ret = v3_hook_io_port(dev->vm, port,
+ (int (*)(struct guest_info * core, uint16_t, void *, uint_t, void *))read,
+ (int (*)(struct guest_info * core, uint16_t, void *, uint_t, void *))write,
+ (void *)dev->private_data);
- if (ret == -1) {
- return -1;
- }
+ if (ret == -1) {
+ return -1;
+ }
- io_hook = V3_Malloc(sizeof(struct dev_io_hook));
+ if (add_resource(dev, DEV_IO_HOOK, port) == -1) {
+ v3_unhook_io_port(dev->vm, port);
+ PrintError("Could not allocate io hook dev state\n");
+ return -1;
+ }
+
+ return 0;
+}
- if (io_hook == NULL) {
- PrintError("Could not allocate io hook dev state\n");
- return -1;
- }
- io_hook->port = port;
- list_add(&(io_hook->node), &(dev->io_hooks));
+int v3_dev_unhook_io(struct vm_device * dev, uint16_t port) {
+ if (free_resource(dev, DEV_IO_HOOK, port) == 0) {
+ return v3_unhook_io_port(dev->vm, port);
+ }
- return 0;
+ return -1;
}
-int v3_dev_unhook_io(struct vm_device * dev, uint16_t port) {
- struct dev_io_hook * io_hook = NULL;
- struct dev_io_hook * tmp;
+int v3_dev_hook_msr(struct vm_device * dev, uint32_t msr,
+ int (*read)(struct guest_info * core, uint32_t msr, struct v3_msr * dst, void * priv_data),
+ int (*write)(struct guest_info * core, uint32_t msr, struct v3_msr src, void * priv_data)) {
+ int ret = 0;
- list_for_each_entry_safe(io_hook, tmp, &(dev->io_hooks), node) {
- if (io_hook->port == port) {
+ ret = v3_hook_msr(dev->vm, msr, read, write, dev->private_data);
- list_del(&(io_hook->node));
- V3_Free(io_hook);
-
- return v3_unhook_io_port(dev->vm, port);
- }
+ if (ret == -1) {
+ return -1;
+ }
+
+ if (add_resource(dev, DEV_MSR_HOOK, msr) == -1) {
+ v3_unhook_msr(dev->vm, msr);
+ return -1;
+ }
+
+ return 0;
+}
+
+int v3_dev_unhook_msr(struct vm_device * dev, uint32_t msr) {
+ if (free_resource(dev, DEV_MSR_HOOK, msr) == 0) {
+ return v3_unhook_msr(dev->vm, msr);
}
return -1;
+
int v3_remove_device(struct vm_device * dev) {
struct vmm_dev_mgr * mgr = &(dev->vm->dev_mgr);
- struct dev_io_hook * io_hook = NULL;
- struct dev_io_hook * tmp;
+ struct dev_rsrc * resource = NULL;
+ struct dev_rsrc * tmp;
+
+ list_for_each_entry_safe(resource, tmp, &(dev->res_hooks), node) {
+ if (resource->type == DEV_IO_HOOK) {
+ v3_unhook_io_port(dev->vm, (uint16_t)(resource->rsrc));
+ } else if (resource->type == DEV_MSR_HOOK) {
+ v3_unhook_msr(dev->vm, (uint32_t)(resource->rsrc));
+ }
- list_for_each_entry_safe(io_hook, tmp, &(dev->io_hooks), node) {
- v3_unhook_io_port(dev->vm, io_hook->port);
- list_del(&(io_hook->node));
- V3_Free(io_hook);
+ list_del(&(resource->node));
+ V3_Free(resource);
}
if (dev->ops->free) {
return NULL;
}
- INIT_LIST_HEAD(&(dev->io_hooks));
+ INIT_LIST_HEAD(&(dev->res_hooks));
strncpy(dev->name, name, 32);
dev->ops = ops;
