[libvirt] [PATCH] Fix auto-adding of virtio serial controllers
Cole Robinson
crobinso at redhat.com
Thu Jun 3 13:58:58 UTC 2010
On 06/03/2010 08:54 AM, Daniel P. Berrange wrote:
> The domain parsing code would auto-add a virtio serial controller
> if it saw any virtio serial channel defined. Unfortunately it
> always added a controller with index=0, even if the channel address
> specified an index != 0. It only added one controller, even if
> multiple controllers were referenced by channels. Finally, it let
> the ports+vectors parameters initialize to zero instead of -1, which
> prevented the controllers accepting any ports.
>
> * src/conf/domain_conf.c: Initialize ports+vectors when adding
> virtio serial controllers. Add all neccessary virtio serial
> controllers, instead of hardcoding controller 0
> * qemuxml2argvdata/qemuxml2argv-channel-virtio.args,
> qemuxml2argvdata/qemuxml2argv-channel-virtio.xml: Expand to
> test controller auto-add behaviour
> ---
> src/conf/domain_conf.c | 19 ++++++++++++++++---
> .../qemuxml2argv-channel-virtio.args | 2 +-
> .../qemuxml2argv-channel-virtio.xml | 4 ++++
> 3 files changed, 21 insertions(+), 4 deletions(-)
>
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index a9b01d5..64b5cf3 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -4385,6 +4385,10 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
>
> def->channels[def->nchannels++] = chr;
>
> + if (chr->targetType == VIR_DOMAIN_CHR_TARGET_TYPE_VIRTIO &&
> + chr->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
> + chr->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL;
> +
> if (chr->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL &&
> chr->info.addr.vioserial.port == 0) {
> int maxport = -1;
> @@ -4797,6 +4801,12 @@ static int virDomainDefMaybeAddController(virDomainDefPtr def,
> cont->type = type;
> cont->idx = idx;
>
> + if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL) {
> + cont->opts.vioserial.ports = -1;
> + cont->opts.vioserial.vectors = -1;
> + }
> +
> +
> if (VIR_REALLOC_N(def->controllers, def->ncontrollers+1) < 0) {
> VIR_FREE(cont);
> virReportOOMError();
> @@ -4839,15 +4849,18 @@ static int virDomainDefMaybeAddVirtioSerialController(virDomainDefPtr def)
> {
> /* Look for any virtio serial device */
> int i;
> +
> for (i = 0 ; i < def->nchannels ; i++) {
> virDomainChrDefPtr channel = def->channels[i];
>
> if (channel->targetType == VIR_DOMAIN_CHR_TARGET_TYPE_VIRTIO) {
> - /* Try to add a virtio serial controller with index 0 */
> + int idx = 0;
> + if (channel->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL)
> + idx = channel->info.addr.vioserial.controller;
> +
> if (virDomainDefMaybeAddController(def,
> - VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL, 0) < 0)
> + VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL, idx) < 0)
> return -1;
> - break;
> }
> }
>
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args b/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args
> index 8e5fbe2..e59d944 100644
> --- a/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.args
> @@ -1 +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,nr=0,chardev=channel1,name=org.linux-kvm.port.foo -chardev pty,id=channel2 -device virtserialport,bus=virtio-serial1.0,nr=3,chardev=channel2,name=org.linux-kvm.port.bar -chardev pty,id=channel3 -device virtserialport,bus=virtio-serial0.0,nr=0,chardev=channel3,name=org.linux-kvm.port.wizz -chardev pty,id=channel4 -device virtserialport,bus=virtio-serial1.0,nr=4,chardev=channel4,name=org.linux-kvm.port.ooh -usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x
3
> +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 -device virtio-serial-pci,id=virtio-serial2,bus=pci.0,addr=0x5 -hda /dev/HostVG/QEMUGuest1 -chardev pty,id=channel0 -device virtserialport,bus=virtio-serial0.0,nr=0,chardev=channel0,name=org.linux-kvm.port.0 -chardev pty,id=channel1 -device virtserialport,bus=virtio-serial1.0,nr=0,chardev=channel1,name=org.linux-kvm.port.foo -chardev pty,id=channel2 -device virtserialport,bus=virtio-serial1.0,nr=3,chardev=channel2,name=org.linux-kvm.port.bar -chardev pty,id=channel3 -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=channel3,name=org.linux-kvm.port.wizz -chardev pty,id=channel4 -device virtserialport,bus=virtio-serial1.0,nr=4,chardev=channel4,
n!
> ame=org.linux-kvm.port.ooh -chardev pty,id=channel5 -device virtserialport,bus=virtio-serial2.0,nr=0,chardev=channel5,name=org.linux-kvm.port.lla -usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.xml b/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.xml
> index 04a3e1c..6e3458f 100644
> --- a/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.xml
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-channel-virtio.xml
> @@ -43,5 +43,9 @@
> <target type='virtio' name='org.linux-kvm.port.ooh'/>
> <address type='virtio-serial' controller='1' bus='0'/>
> </channel>
> + <channel type='pty'>
> + <target type='virtio' name='org.linux-kvm.port.lla'/>
> + <address type='virtio-serial' controller='2' bus='0'/>
> + </channel>
> </devices>
> </domain>
ACK
- Cole
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