[libvirt] [PATCH] RFC: Add domain vmport attribute
Daniel P. Berrange
berrange at redhat.com
Mon Mar 23 22:42:57 UTC 2015
On Mon, Mar 23, 2015 at 05:32:30PM +0100, Marc-André Lureau wrote:
> The QEMU machine vmport option allows to set the VMWare IO port
> emulation. This emulation is useful for absolute pointer input when the
> guest has vmware input drivers, and is enabled by default for kvm.
>
> However it is unnecessary for Spice-enabled VM, since the agent already
> handles absolute pointer and multi-monitors. Furthermore, it prevents
> Spice from switching to relative input since the regular ps/2 pointer
> driver is replaced by the vmware driver. It is thus advised to disable
> vmport when using a Spice VM. This will permit the Spice client to
> switch from absolute to relative pointer, as it may be required for
> certain games or applications.
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-machine-vmport-opt.xml b/tests/qemuxml2argvdata/qemuxml2argv-machine-vmport-opt.xml
> new file mode 100644
> index 0000000..ee796f6
> --- /dev/null
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-machine-vmport-opt.xml
> @@ -0,0 +1,25 @@
> +<domain type='qemu'>
> + <name>QEMUGuest1</name>
> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
> + <memory unit='KiB'>219100</memory>
> + <currentMemory unit='KiB'>219100</currentMemory>
> + <vcpu placement='static'>1</vcpu>
> + <os>
> + <type arch='i686' machine='pc' vmport='no'>hvm</type>
> + <boot dev='hd'/>
> + </os>
I think we'd normally place this kind of attribute in the
<features></features> block rather than here. eg see the
toggle for turning on/off hyper-v emulation.
Regards,
Daniel
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