From cd1b0c295dc4ef2ce5e6113798c340ec4785ca14 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Wed, 7 Mar 2012 08:00:20 +0100 Subject: [PATCH 06/12] suspend: make serial ports wakeup the guest. RH-Author: Gerd Hoffmann Message-id: <1331107226-21901-7-git-send-email-kraxel@redhat.com> Patchwork-id: 38356 O-Subject: [RHEL-6.3 qemu-kvm PATCH v3 06/12] suspend: make serial ports wakeup the guest. Bugzilla: 766303 RH-Acked-by: Paolo Bonzini RH-Acked-by: Gleb Natapov RH-Acked-by: Alex Williamson 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 upstream: 9826fd597df59a8bac7beafd192e4baad790c31a --- hw/serial.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) Signed-off-by: Michal Novotny --- hw/serial.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/hw/serial.c b/hw/serial.c index 29151e9..8e92f67 100644 --- a/hw/serial.c +++ b/hw/serial.c @@ -131,6 +131,7 @@ 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; @@ -621,6 +622,10 @@ 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++) { @@ -911,6 +916,7 @@ static ISADeviceInfo serial_isa_info = { 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(), }, }; -- 1.7.7.6