diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2012-02-23 13:45:23 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-02-24 13:36:03 -0600 |
| commit | 9826fd597df59a8bac7beafd192e4baad790c31a (patch) | |
| tree | e7f25ee4e14c810c39c4d06d3ad050a79f3092b8 /hw/serial.c | |
| parent | fd214d1828bf467d16251abce1747ffce932531f (diff) | |
suspend: make serial ports wakeup the guest.
Add a 'wakeup' property to the serial port. It is off by default. When
enabled any incoming character on the serial line will wake up the
guest. Useful for guests which have a serial console configured.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/serial.c')
| -rw-r--r-- | hw/serial.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/serial.c b/hw/serial.c index 144d1b3526..c0ee55d20c 100644 --- a/hw/serial.c +++ b/hw/serial.c @@ -139,6 +139,7 @@ struct SerialState { int it_shift; int baudbase; int tsr_retry; + uint32_t wakeup; uint64_t last_xmit_ts; /* Time when the last byte was successfully sent out of the tsr */ SerialFIFO recv_fifo; @@ -635,6 +636,10 @@ static int serial_can_receive1(void *opaque) static void serial_receive1(void *opaque, const uint8_t *buf, int size) { SerialState *s = opaque; + + if (s->wakeup) { + qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER); + } if(s->fcr & UART_FCR_FE) { int i; for (i = 0; i < size; i++) { @@ -884,6 +889,7 @@ static Property serial_isa_properties[] = { DEFINE_PROP_HEX32("iobase", ISASerialState, iobase, -1), DEFINE_PROP_UINT32("irq", ISASerialState, isairq, -1), DEFINE_PROP_CHR("chardev", ISASerialState, state.chr), + DEFINE_PROP_UINT32("wakeup", ISASerialState, state.wakeup, 0), DEFINE_PROP_END_OF_LIST(), }; |