summaryrefslogtreecommitdiffstats
path: root/src/include/hw/virtio/vhost-backend.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/include/hw/virtio/vhost-backend.h')
-rw-r--r--src/include/hw/virtio/vhost-backend.h111
1 files changed, 111 insertions, 0 deletions
diff --git a/src/include/hw/virtio/vhost-backend.h b/src/include/hw/virtio/vhost-backend.h
new file mode 100644
index 0000000..a6e5c97
--- /dev/null
+++ b/src/include/hw/virtio/vhost-backend.h
@@ -0,0 +1,111 @@
+/*
+ * vhost-backend
+ *
+ * Copyright (c) 2013 Virtual Open Systems Sarl.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef VHOST_BACKEND_H_
+#define VHOST_BACKEND_H_
+
+#include <stdbool.h>
+
+typedef enum VhostBackendType {
+ VHOST_BACKEND_TYPE_NONE = 0,
+ VHOST_BACKEND_TYPE_KERNEL = 1,
+ VHOST_BACKEND_TYPE_USER = 2,
+ VHOST_BACKEND_TYPE_MAX = 3,
+} VhostBackendType;
+
+struct vhost_dev;
+struct vhost_log;
+struct vhost_memory;
+struct vhost_vring_file;
+struct vhost_vring_state;
+struct vhost_vring_addr;
+struct vhost_scsi_target;
+
+typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque);
+typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev);
+typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev);
+
+typedef int (*vhost_net_set_backend_op)(struct vhost_dev *dev,
+ struct vhost_vring_file *file);
+typedef int (*vhost_scsi_set_endpoint_op)(struct vhost_dev *dev,
+ struct vhost_scsi_target *target);
+typedef int (*vhost_scsi_clear_endpoint_op)(struct vhost_dev *dev,
+ struct vhost_scsi_target *target);
+typedef int (*vhost_scsi_get_abi_version_op)(struct vhost_dev *dev,
+ int *version);
+typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base,
+ struct vhost_log *log);
+typedef int (*vhost_set_mem_table_op)(struct vhost_dev *dev,
+ struct vhost_memory *mem);
+typedef int (*vhost_set_vring_addr_op)(struct vhost_dev *dev,
+ struct vhost_vring_addr *addr);
+typedef int (*vhost_set_vring_endian_op)(struct vhost_dev *dev,
+ struct vhost_vring_state *ring);
+typedef int (*vhost_set_vring_num_op)(struct vhost_dev *dev,
+ struct vhost_vring_state *ring);
+typedef int (*vhost_set_vring_base_op)(struct vhost_dev *dev,
+ struct vhost_vring_state *ring);
+typedef int (*vhost_get_vring_base_op)(struct vhost_dev *dev,
+ struct vhost_vring_state *ring);
+typedef int (*vhost_set_vring_kick_op)(struct vhost_dev *dev,
+ struct vhost_vring_file *file);
+typedef int (*vhost_set_vring_call_op)(struct vhost_dev *dev,
+ struct vhost_vring_file *file);
+typedef int (*vhost_set_features_op)(struct vhost_dev *dev,
+ uint64_t features);
+typedef int (*vhost_get_features_op)(struct vhost_dev *dev,
+ uint64_t *features);
+typedef int (*vhost_set_owner_op)(struct vhost_dev *dev);
+typedef int (*vhost_reset_device_op)(struct vhost_dev *dev);
+typedef int (*vhost_get_vq_index_op)(struct vhost_dev *dev, int idx);
+typedef int (*vhost_set_vring_enable_op)(struct vhost_dev *dev,
+ int enable);
+typedef bool (*vhost_requires_shm_log_op)(struct vhost_dev *dev);
+typedef int (*vhost_migration_done_op)(struct vhost_dev *dev,
+ char *mac_addr);
+typedef bool (*vhost_backend_can_merge_op)(struct vhost_dev *dev,
+ uint64_t start1, uint64_t size1,
+ uint64_t start2, uint64_t size2);
+
+typedef struct VhostOps {
+ VhostBackendType backend_type;
+ vhost_backend_init vhost_backend_init;
+ vhost_backend_cleanup vhost_backend_cleanup;
+ vhost_backend_memslots_limit vhost_backend_memslots_limit;
+ vhost_net_set_backend_op vhost_net_set_backend;
+ vhost_scsi_set_endpoint_op vhost_scsi_set_endpoint;
+ vhost_scsi_clear_endpoint_op vhost_scsi_clear_endpoint;
+ vhost_scsi_get_abi_version_op vhost_scsi_get_abi_version;
+ vhost_set_log_base_op vhost_set_log_base;
+ vhost_set_mem_table_op vhost_set_mem_table;
+ vhost_set_vring_addr_op vhost_set_vring_addr;
+ vhost_set_vring_endian_op vhost_set_vring_endian;
+ vhost_set_vring_num_op vhost_set_vring_num;
+ vhost_set_vring_base_op vhost_set_vring_base;
+ vhost_get_vring_base_op vhost_get_vring_base;
+ vhost_set_vring_kick_op vhost_set_vring_kick;
+ vhost_set_vring_call_op vhost_set_vring_call;
+ vhost_set_features_op vhost_set_features;
+ vhost_get_features_op vhost_get_features;
+ vhost_set_owner_op vhost_set_owner;
+ vhost_reset_device_op vhost_reset_device;
+ vhost_get_vq_index_op vhost_get_vq_index;
+ vhost_set_vring_enable_op vhost_set_vring_enable;
+ vhost_requires_shm_log_op vhost_requires_shm_log;
+ vhost_migration_done_op vhost_migration_done;
+ vhost_backend_can_merge_op vhost_backend_can_merge;
+} VhostOps;
+
+extern const VhostOps user_ops;
+
+int vhost_set_backend_type(struct vhost_dev *dev,
+ VhostBackendType backend_type);
+
+#endif /* VHOST_BACKEND_H_ */
OpenPOWER on IntegriCloud