[libvirt] [PATCH 09/13] qemu: use controller object alias in commandline for virtio-serial device

Laine Stump laine at laine.org
Tue May 12 15:16:18 UTC 2015

On 05/08/2015 08:05 PM, John Ferlan wrote:
> On 05/05/2015 02:03 PM, Laine Stump wrote:
>> The commandline generator for a virtio-serial device had a hardcoded
>> printf of "virtio-serial%d" as the id of the virtio-serial
>> controller. This patch changes it to use the alias of the controller
>> instead. Because the function that finds a controller alias requires a
>> pointer to the domainDef in order to get the list of controllers, the
>> arglist of a few functions had to have this added.
>> Once this was done, the literal string QEMU_VIRTIO_SERIAL_PREFIX was
>> no longer needed, so it has been removed.
>> ---
>>  src/qemu/qemu_command.c | 28 +++++++++++++++++-----------
>>  src/qemu/qemu_command.h |  1 -
>>  2 files changed, 17 insertions(+), 12 deletions(-)
> ACK - although a couple of notes (a cscope search on "bus=" finds :
> qemuUSBId
>  - where there are decision points to use usb or usb%d

Yeah. It looks like that is another exception (so another place where
the status XML isn't correctly reflecting the id used in qemu).

> qemuBuildSCSIHostdevDevStr
>  - where bus=scsi%d is used

Yes, this one should be changed too.

Also, there is a place in qemuBuildDeviceAddressStr() where it is making
decisions about the name to use for the PCI bus based on whether or not
PCI_MULTIBUS is true. Instead, the function that builds the alias for
controllers should create the correct name for the one-and-only PCI
controller in this case, and qemuBuildDeviceAddressStr() should just
unconditionally use that name.

Should I merge all of these into a single patch? Or a separate patch for

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