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29 * Copyright (C) Red Hat, Inc., 2009, 2010, 2011
30 * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011
32 #ifndef _UAPI_LINUX_VIRTIO_CONSOLE_H
33 #define _UAPI_LINUX_VIRTIO_CONSOLE_H
34 #include <linux/types.h>
35 #include <linux/virtio_types.h>
36 #include <linux/virtio_ids.h>
37 #include <linux/virtio_config.h>
40 #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */
41 #define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */
42 #define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */
44 #define VIRTIO_CONSOLE_BAD_ID (~(__u32)0)
46 struct virtio_console_config {
47 /* colums of the screens */
49 /* rows of the screens */
51 /* max. number of ports this device can hold */
52 __virtio32 max_nr_ports;
53 /* emergency write register */
55 } __attribute__((packed));
58 * A message that's passed between the Host and the Guest for a
61 struct virtio_console_control {
62 __virtio32 id; /* Port number */
63 __virtio16 event; /* The kind of control event (see below) */
64 __virtio16 value; /* Extra information for the key */
67 /* Some events for control messages */
68 #define VIRTIO_CONSOLE_DEVICE_READY 0
69 #define VIRTIO_CONSOLE_PORT_ADD 1
70 #define VIRTIO_CONSOLE_PORT_REMOVE 2
71 #define VIRTIO_CONSOLE_PORT_READY 3
72 #define VIRTIO_CONSOLE_CONSOLE_PORT 4
73 #define VIRTIO_CONSOLE_RESIZE 5
74 #define VIRTIO_CONSOLE_PORT_OPEN 6
75 #define VIRTIO_CONSOLE_PORT_NAME 7
78 #endif /* _UAPI_LINUX_VIRTIO_CONSOLE_H */