Revision ad3005ad hw/virtio-serial-bus.c
| b/hw/virtio-serial-bus.c | ||
|---|---|---|
| 287 | 287 |
size_t virtio_serial_guest_ready(VirtIOSerialPort *port) |
| 288 | 288 |
{
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VirtQueue *vq = port->ivq; |
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unsigned int bytes; |
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if (!virtio_queue_ready(vq) || |
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!(port->vser->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK) || |
| ... | ... | |
| 296 | 297 |
if (use_multiport(port->vser) && !port->guest_connected) {
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return 0; |
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} |
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|
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if (virtqueue_avail_bytes(vq, 4096, 0)) {
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return 4096; |
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} |
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if (virtqueue_avail_bytes(vq, 1, 0)) {
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return 1; |
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} |
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return 0; |
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virtqueue_get_avail_bytes(vq, &bytes, NULL); |
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return bytes; |
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| 307 | 302 |
} |
| 308 | 303 |
|
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static void flush_queued_data_bh(void *opaque) |
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