Support virtio-serial controller and virtio channel in QEMU backend. Will output
the following for virtio-serial controller:
-device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4,max_ports=16,vectors=4
and the following for a virtio channel:
-chardev pty,id=channel0 \
-device virtserialport,bus=virtio-serial0.0,chardev=channel0,name=org.linux-kvm.port.0
* src/qemu/qemu_conf.c: Add argument output for virtio
* tests/qemuxml2argvtest.c
tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args
: Add test for QEMU command line generation
---
src/qemu/qemu_conf.c | 91 +++++++++++++++++++-
.../qemuxml2argv-channel-virtio.args | 1 +
tests/qemuxml2argvtest.c | 1 +
3 files changed, 92 insertions(+), 1 deletions(-)
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 456ee34..110409d 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -2168,7 +2168,6 @@ qemuAssignDevicePCISlots(virDomainDefPtr def, qemuDomainPCIAddressSetPtr addrs)
}
for (i = 0; i < def->nchannels ; i++) {
/* Nada - none are PCI based (yet) */
- /* XXX virtio-serial will need one */
}
if (def->watchdog &&
def->watchdog->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
@@ -2465,6 +2464,23 @@ qemuBuildControllerDevStr(virDomainControllerDefPtr def)
virBufferVSprintf(&buf, ",id=scsi%d", def->idx);
break;
+ case VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL:
+ if (def->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
+ virBufferAddLit(&buf, "virtio-serial-pci");
+ } else {
+ virBufferAddLit(&buf, "virtio-serial");
+ }
+ virBufferVSprintf(&buf, ",id=virtio-serial%d", def->idx);
+ if (def->opts.vioserial.max_ports != -1) {
+ virBufferVSprintf(&buf, ",max_ports=%d",
+ def->opts.vioserial.max_ports);
+ }
+ if (def->opts.vioserial.vectors != -1) {
+ virBufferVSprintf(&buf, ",vectors=%d",
+ def->opts.vioserial.vectors);
+ }
+ break;
+
/* We always get an IDE controller, whether we want it or not. */
case VIR_DOMAIN_CONTROLLER_TYPE_IDE:
default:
@@ -3830,6 +3846,79 @@ int qemudBuildCommandLine(virConnectPtr conn,
}
VIR_FREE(addr);
ADD_ARG(devstr);
+ break;
+
+ case VIR_DOMAIN_CHR_TARGET_TYPE_VIRTIO:
+ if (!(qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) {
+ qemuReportError(VIR_ERR_NO_SUPPORT, "%s",
+ _("virtio channel requires QEMU to support -device"));
+ goto error;
+ }
+
+ ADD_ARG_LIT("-chardev");
+ if (!(devstr = qemuBuildChrChardevStr(channel)))
+ goto error;
+ ADD_ARG(devstr);
+
+ virBuffer virtiodev = VIR_BUFFER_INITIALIZER;
+ virBufferAddLit(&virtiodev, "virtserialport");
+
+ if (channel->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
+ /* Check it's a virtio-serial address */
+ if (channel->info.type !=
+ VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL)
+ {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("virtio serial device has invalid "
+ "address type"));
+ virBufferFreeAndReset(&virtiodev);
+ goto error;
+ }
+
+ /* Look for the virtio-serial controller */
+ const char *vsalias = NULL;
+ int vs = 0;
+ int c;
+ for (c = 0; c < def->ncontrollers; c++) {
+ if (def->controllers[c]->type !=
+ VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL)
+ {
+ continue;
+ }
+
+ if (vs == channel->info.addr.vioserial.controller) {
+ vsalias = def->controllers[c]->info.alias;
+ break;
+ }
+
+ vs++;
+ }
+
+ if (!vsalias) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("virtio serial device address controller "
+ "does not exist"));
+ virBufferFreeAndReset(&virtiodev);
+ goto error;
+ }
+
+ virBufferVSprintf(&virtiodev, ",bus=%s.%d",
+ vsalias, channel->info.addr.vioserial.bus);
+ }
+
+ virBufferVSprintf(&virtiodev, ",chardev=%s", channel->info.alias);
+ if (channel->target.name) {
+ virBufferVSprintf(&virtiodev, ",name=%s", channel->target.name);
+ }
+ if (virBufferError(&virtiodev)) {
+ virReportOOMError();
+ goto error;
+ }
+
+ ADD_ARG_LIT("-device");
+ ADD_ARG(virBufferContentAndReset(&virtiodev));
+
+ break;
}
}
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args b/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args
new file mode 100644
index 0000000..4097065
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args
@@ -0,0 +1 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -nodefaults -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -device virtio-serial-pci,id=virtio-serial0,max_ports=16,vectors=4,bus=pci.0,addr=0x4 -device virtio-serial-pci,id=virtio-serial1,bus=pci.0,addr=0xa -hda /dev/HostVG/QEMUGuest1 -chardev pty,id=channel0 -device virtserialport,chardev=channel0,name=org.linux-kvm.port.0 -chardev pty,id=channel1 -device virtserialport,bus=virtio-serial1.0,chardev=channel1,name=org.linux-kvm.port.1 -usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index aa42f99..a8c9ed3 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -318,6 +318,7 @@ mymain(int argc, char **argv)
DO_TEST("console-compat-chardev", QEMUD_CMD_FLAG_CHARDEV|QEMUD_CMD_FLAG_DEVICE);
DO_TEST("channel-guestfwd", QEMUD_CMD_FLAG_CHARDEV|QEMUD_CMD_FLAG_DEVICE);
+ DO_TEST("channel-virtio", QEMUD_CMD_FLAG_DEVICE);
DO_TEST("watchdog", 0);
DO_TEST("watchdog-device", QEMUD_CMD_FLAG_DEVICE);
--
1.6.6
--
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