[virt-tools-list] [PATCH 3/5] virtinst: add listen=none graphics option

Cole Robinson crobinso at redhat.com
Fri Apr 29 10:52:22 UTC 2016


On 04/28/2016 09:31 AM, Pavel Hrdina wrote:
> On Thu, Apr 28, 2016 at 02:22:09PM +0200, Marc-André Lureau wrote:
>> Add a special listen value to disable any extra display server listening
>> socket. This is necessary now that qemu prevents starting a spice+virgl
>> VM with listening sockets (until spice allows remoting with virgl).
>>
>> Signed-off-by: Marc-André Lureau <marcandre.lureau at redhat.com>
>> ---
>>  man/virt-install.pod                                     |  9 +++++++--
>>  tests/cli-test-xml/compare/virt-install-many-devices.xml |  4 ++++
>>  tests/clitest.py                                         |  1 +
>>  virtinst/cli.py                                          | 11 ++++++++++-
>>  4 files changed, 22 insertions(+), 3 deletions(-)
>>
>> diff --git a/man/virt-install.pod b/man/virt-install.pod
>> index 0bc3d8c..0537693 100644
>> --- a/man/virt-install.pod
>> +++ b/man/virt-install.pod
>> @@ -964,8 +964,13 @@ Specify the spice tlsport.
>>  Address to listen on for VNC/Spice connections. Default is typically 127.0.0.1
>>  (localhost only), but some hypervisors allow changing this globally (for
>>  example, the qemu driver default can be changed in /etc/libvirt/qemu.conf).
>> -Use 0.0.0.0 to allow access from other machines. This is use by 'vnc' and
>> -'spice'
>> +Use 0.0.0.0 to allow access from other machines.
>> +
>> +Use 'none' to specify that the display server should not listen on any
>> +port. The display server can be accessed only locally through
>> +libvirt unix socket (virt-viewer with --attach for instance).
>> +
>> +This is used by 'vnc' and 'spice'
>>  
>>  =item B<keymap>
>>  
>> diff --git a/tests/cli-test-xml/compare/virt-install-many-devices.xml b/tests/cli-test-xml/compare/virt-install-many-devices.xml
>> index e771cd3..d268cd9 100644
>> --- a/tests/cli-test-xml/compare/virt-install-many-devices.xml
>> +++ b/tests/cli-test-xml/compare/virt-install-many-devices.xml
>> @@ -214,6 +214,10 @@
>>        <gl enable="yes"/>
>>        <image compression="off"/>
>>      </graphics>
>> +    <graphics type="spice" autoport="no">
>> +      <gl enable="yes"/>
>> +      <image compression="off"/>
>> +    </graphics>
> 
> NACK, please don't do this ... it's not intuitive and it may confuse users.
> This wasn't designed in libvirt to start a domain with spice to not listen
> anywhere.  Even though it works, we shouldn't use it.  I'm working on patches,
> that will introduce new <listen type='fd'/> which will tell qemu that spice
> shouldn't listen and that a client have to pass FD in order to connect.  I'll
> also block this particular case in libvirt while starting a domain, that no port
> was specified.  It's not even documented anywhere.
> 

Sorry, I suggested that cli syntax to Marc-André since I guessed that's how it
would end up looking upstream. But looks like you guys worked it out
downthread anyways

- Cole




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