haraldwolff/qemu-patch-raspberry4
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Merge remote-tracking branch 'amit/loadvm-irq-inj-fix' into staging

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* amit/loadvm-irq-inj-fix:
  virtio-serial-bus: post_load send_event when vm is running

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2012-11-19 08:31:48 -06:00
parent f44d771a8c 80dcfb8532
commit 698229eb28
1 changed files with 44 additions and 10 deletions
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54
hw/virtio-serial-bus.c
View file

@ -53,6 +53,15 @@ struct VirtIOSerial {
uint32_t *ports_map;
struct virtio_console_config config;
struct {
QEMUTimer *timer;
int nr_active_ports;
struct {
VirtIOSerialPort *port;
uint8_t host_connected;
} *connected;
} post_load;
};
static VirtIOSerialPort *find_port_by_id(VirtIOSerial *vser, uint32_t id)
@ -626,6 +635,29 @@ static void virtio_serial_save(QEMUFile *f, void *opaque)
}
}
static void virtio_serial_post_load_timer_cb(void *opaque)
{
int i;
VirtIOSerial *s = opaque;
VirtIOSerialPort *port;
uint8_t host_connected;
for (i = 0 ; i < s->post_load.nr_active_ports; ++i) {
port = s->post_load.connected[i].port;
host_connected = s->post_load.connected[i].host_connected;
if (host_connected != port->host_connected) {
/*
* We have to let the guest know of the host connection
* status change
*/
send_control_event(port, VIRTIO_CONSOLE_PORT_OPEN,
port->host_connected);
}
}
g_free(s->post_load.connected);
s->post_load.connected = NULL;
}
static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIOSerial *s = opaque;
@ -673,10 +705,13 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id)
qemu_get_be32s(f, &nr_active_ports);
s->post_load.nr_active_ports = nr_active_ports;
s->post_load.connected =
g_malloc0(sizeof(*s->post_load.connected) * nr_active_ports);
/* Items in struct VirtIOSerialPort */
for (i = 0; i < nr_active_ports; i++) {
uint32_t id;
bool host_connected;
id = qemu_get_be32(f);
port = find_port_by_id(s, id);
@ -685,15 +720,8 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id)
}
port->guest_connected = qemu_get_byte(f);
host_connected = qemu_get_byte(f);
if (host_connected != port->host_connected) {
/*
* We have to let the guest know of the host connection
* status change
*/
send_control_event(port, VIRTIO_CONSOLE_PORT_OPEN,
port->host_connected);
}
s->post_load.connected[i].port = port;
s->post_load.connected[i].host_connected = qemu_get_byte(f);
if (version_id > 2) {
uint32_t elem_popped;
@ -718,6 +746,7 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id)
}
}
}
qemu_mod_timer(s->post_load.timer, 1);
return 0;
}
@ -967,6 +996,9 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, virtio_serial_conf *conf)
register_savevm(dev, "virtio-console", -1, 3, virtio_serial_save,
virtio_serial_load, vser);
vser->post_load.timer = qemu_new_timer_ns(vm_clock,
virtio_serial_post_load_timer_cb, vser);
return vdev;
}
@ -979,6 +1011,8 @@ void virtio_serial_exit(VirtIODevice *vdev)
g_free(vser->ivqs);
g_free(vser->ovqs);
g_free(vser->ports_map);
g_free(vser->post_load.connected);
qemu_free_timer(vser->post_load.timer);
virtio_cleanup(vdev);
}