From cd1b0c295dc4ef2ce5e6113798c340ec4785ca14 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 7 Mar 2012 08:00:20 +0100
Subject: [PATCH 06/12] suspend: make serial ports wakeup the guest.
RH-Author: Gerd Hoffmann <kraxel@redhat.com>
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 <pbonzini@redhat.com>
RH-Acked-by: Gleb Natapov <gleb@redhat.com>
RH-Acked-by: Alex Williamson <alex.williamson@redhat.com>
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>
upstream: 9826fd597df59a8bac7beafd192e4baad790c31a
---
hw/serial.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
Signed-off-by: Michal Novotny <minovotn@redhat.com>
---
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