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| author | Amit Shah <amit.shah@redhat.com> | 2010-04-27 18:03:59 +0530 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-04-28 08:58:21 -0500 |
| commit | 055b889f942b063bd1901a316b34017f2b699b12 (patch) | |
| tree | bd783b69eba3e2b24c7963bc97bb11d891033406 /hw/virtio-serial.h | |
| parent | 31abe21f4f026171128e6fbafb40062ae1872bd5 (diff) | |
| download | qemu-055b889f942b063bd1901a316b34017f2b699b12.zip qemu-055b889f942b063bd1901a316b34017f2b699b12.tar.gz qemu-055b889f942b063bd1901a316b34017f2b699b12.tar.bz2 | |
virtio-serial: Use control messages to notify guest of new ports
Allow the port 'id's to be set by a user on the command line. This is
needed by management apps that will want a stable port numbering scheme
for hot-plug/unplug and migration.
Since the port numbers are shared with the guest (to identify ports in
control messages), we just send a control message to the guest
indicating addition of new ports (hot-plug) or notifying the guest of
the available ports when the guest sends us a DEVICE_READY control
message.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/virtio-serial.h')
| -rw-r--r-- | hw/virtio-serial.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/hw/virtio-serial.h b/hw/virtio-serial.h index f297b00..0548689 100644 --- a/hw/virtio-serial.h +++ b/hw/virtio-serial.h @@ -27,6 +27,8 @@ /* Features supported */ #define VIRTIO_CONSOLE_F_MULTIPORT 1 +#define VIRTIO_CONSOLE_BAD_ID (~(uint32_t)0) + struct virtio_console_config { /* * These two fields are used by VIRTIO_CONSOLE_F_SIZE which @@ -36,7 +38,6 @@ struct virtio_console_config { uint16_t rows; uint32_t max_nr_ports; - uint32_t nr_ports; } __attribute__((packed)); struct virtio_console_control { @@ -46,12 +47,14 @@ struct virtio_console_control { }; /* Some events for the internal messages (control packets) */ -#define VIRTIO_CONSOLE_PORT_READY 0 -#define VIRTIO_CONSOLE_CONSOLE_PORT 1 -#define VIRTIO_CONSOLE_RESIZE 2 -#define VIRTIO_CONSOLE_PORT_OPEN 3 -#define VIRTIO_CONSOLE_PORT_NAME 4 -#define VIRTIO_CONSOLE_PORT_REMOVE 5 +#define VIRTIO_CONSOLE_DEVICE_READY 0 +#define VIRTIO_CONSOLE_PORT_ADD 1 +#define VIRTIO_CONSOLE_PORT_REMOVE 2 +#define VIRTIO_CONSOLE_PORT_READY 3 +#define VIRTIO_CONSOLE_CONSOLE_PORT 4 +#define VIRTIO_CONSOLE_RESIZE 5 +#define VIRTIO_CONSOLE_PORT_OPEN 6 +#define VIRTIO_CONSOLE_PORT_NAME 7 /* == In-qemu interface == */ |