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virtio-serial: Clean up virtconsole detection 

virtio-serial-bus needs to treat "virtconsole" devices specially.  It
uses VirtIOSerialPort member is_console to recognize them.  It gets
its value via property initialization.  Cute hack, except it lets
users mess with it: "-device virtconsole,is_console=0" isn't plugged
into port 0 as it should.

Move the flag to VirtIOSerialPortInfo.  Keep the property for backward
compatibility; its value has no effect.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Markus Armbruster 2011-05-25 14:21:11 +02:00 committed by Amit Shah
parent 5e52e5f903
commit 2a3d57ce42
3 changed files with 11 additions and 6 deletions
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5
hw/virtio-console.c
View File

@ -91,7 +91,7 @@ static int virtconsole_initfn(VirtIOSerialPort *port)
{
VirtConsole *vcon = DO_UPCAST(VirtConsole, port, port);
port->is_console = true;
port->is_console_dummy = true;
return generic_port_init(vcon, port);
}
@ -113,10 +113,11 @@ static int virtconsole_exitfn(VirtIOSerialPort *port)
static VirtIOSerialPortInfo virtconsole_info = {
.qdev.name = "virtconsole",
.qdev.size = sizeof(VirtConsole),
.is_console = true,
.init = virtconsole_initfn,
.exit = virtconsole_exitfn,
.qdev.props = (Property[]) {
DEFINE_PROP_UINT8("is_console", VirtConsole, port.is_console, 1),
DEFINE_PROP_UINT8("is_console", VirtConsole, port.is_console_dummy, 1),
DEFINE_PROP_UINT32("nr", VirtConsole, port.id, VIRTIO_CONSOLE_BAD_ID),
DEFINE_PROP_CHR("chardev", VirtConsole, chr),
DEFINE_PROP_STRING("name", VirtConsole, port.name),

4
hw/virtio-serial-bus.c
View File

@ -356,7 +356,7 @@ static void handle_control_message(VirtIOSerial *vser, void *buf, size_t len)
* this port is a console port so that the guest can hook it
* up to hvc.
*/
if (port->is_console) {
if (port->info->is_console) {
send_control_event(port, VIRTIO_CONSOLE_CONSOLE_PORT, 1);
}
@ -729,7 +729,7 @@ static int virtser_port_qdev_init(DeviceState *qdev, DeviceInfo *base)
* location 0. This is done for backward compatibility (old
* kernel, new qemu).
*/
plugging_port0 = port->is_console && !find_port_by_id(port->vser, 0);
plugging_port0 = info->is_console && !find_port_by_id(port->vser, 0);
if (find_port_by_id(port->vser, port->id)) {
error_report("virtio-serial-bus: A port already exists at id %u\n",

8
hw/virtio-serial.h
View File

@ -124,8 +124,8 @@ struct VirtIOSerialPort {
*/
QEMUBH *bh;
/* Identify if this is a port that binds with hvc in the guest */
uint8_t is_console;
/* For property backward compatibility, not used otherwise */
uint8_t is_console_dummy;
/* Is the corresponding guest device open? */
bool guest_connected;
@ -137,6 +137,10 @@ struct VirtIOSerialPort {
struct VirtIOSerialPortInfo {
DeviceInfo qdev;
/* Is this a device that binds with hvc in the guest? */
bool is_console;
/*
* The per-port (or per-app) init function that's called when a
* new device is found on the bus.