7:17 a.m.
Hi,
I try to exchange datas between host and Guest by adding these lines in a guest .xml
conf file :
<channel type='pty'>
<target type='virtio'
name='arbitrary.virtio.serial.port.name'/>
<address type='virtio-serial' controller='0' bus='0'
port='1'/>
</channel>
Then /dev/virtio-ports/arbitrary.virtio.serial.port.name is exposed in the guest and a
/dev/pts/x is seen as source path on the host.
I checked that on two Linux hosts :
1)
libvirt-daemon-driver-qemu-1.2.8-16.el7_1.3.x86_64
qemu-kvm-1.5.3-86.el7_1.5.x86_64
qemu-kvm-common-1.5.3-86.el7_1.5.x86_64
qemu-guest-agent-2.1.0-4.el7.x86_64
ipxe-roms-qemu-20130517-6.gitc4bce43.el7.noarch
qemu-img-1.5.3-86.el7_1.5.x86_64
Linux sparring 3.10.0-229.el7.x86_64 #1 SMP Thu Jan 29 18:37:38 EST 2015 x86_64 x86_64
x86_64 GNU/Linux
2)
qemu-img-0.12.1.2-2.415.el6.x86_64
qemu-kvm-0.12.1.2-2.415.el6.x86_64
gpxe-roms-qemu-0.9.7-6.10.el6.noarch
Linux orion 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64 x86_64
GNU/Linux
The device is only exposed on the guest of the first host .
Is it due to a too old version of qemu and/or Linux on the second host or some packages
missing on this second host ?
Thx.
Regards,
J.P. Ribeauville
P: +33.(0).1.47.17.27.87
Puteaux 3 Etage 5 Bureau 4
jpribeauville@axway.com<mailto:jpribeauville@axway.com>
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5:13 a.m.
On Wed, Aug 26, 2015 at 12:17:20PM +0000, Jean-Pierre Ribeauville wrote:
Hi,
I try to exchange datas between host and Guest by adding these lines in a guest .xml
conf file :
<channel type='pty'>
<target type='virtio'
name='arbitrary.virtio.serial.port.name'/>
<address type='virtio-serial' controller='0' bus='0'
port='1'/>
</channel>
Then /dev/virtio-ports/arbitrary.virtio.serial.port.name is exposed in the guest and a
/dev/pts/x is seen as source path on the host.
I checked that on two Linux hosts :
1)
libvirt-daemon-driver-qemu-1.2.8-16.el7_1.3.x86_64
qemu-kvm-1.5.3-86.el7_1.5.x86_64
qemu-kvm-common-1.5.3-86.el7_1.5.x86_64
qemu-guest-agent-2.1.0-4.el7.x86_64
ipxe-roms-qemu-20130517-6.gitc4bce43.el7.noarch
qemu-img-1.5.3-86.el7_1.5.x86_64
Linux sparring 3.10.0-229.el7.x86_64 #1 SMP Thu Jan 29 18:37:38 EST 2015 x86_64 x86_64
x86_64 GNU/Linux
2)
qemu-img-0.12.1.2-2.415.el6.x86_64
qemu-kvm-0.12.1.2-2.415.el6.x86_64
gpxe-roms-qemu-0.9.7-6.10.el6.noarch
Linux orion 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64
x86_64 GNU/Linux
The device is only exposed on the guest of the first host .
Is it due to a too old version of qemu and/or Linux on the second host
or some packages missing on this second host ?
Libvirt should tell you if qemu / host is too old, so sounds like a
guest issue instead. Perhaps the guest kernel-module has not been
loaded for the second guest ?
Regards,
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
9:12 a.m.
Hi,
In fact it works fine .
The issue is the following :
Having a look to the source path , via Virtual Machine Manager , I got nothing .
But if I dump the xml file , then I got the pts/x reference :
<channel type='pty'
<source path='/dev/pts/2'/
<target type='virtio'
name='omnivision.virtio.serial.port.name'/
<alias name='channel0'/
<address type='virtio-serial' controller='0' bus='0'
port='1'/
</channel
By using a newer stuff on my second host ( RHEL7 instead of RHEL5) , then , it’s correct
also via Virtual Machine Manager.
Thx for help.
J.P.
-----Message d'origine-----
De : Daniel P. Berrange [mailto:berrange@redhat.com]
Envoyé : jeudi 27 août 2015 12:13
À : Jean-Pierre Ribeauville
Cc : libvirt-users@redhat.com<mailto:libvirt-users@redhat.com
Objet : Re: [libvirt-users] Virtio serial exposition
On Wed, Aug 26, 2015 at 12:17:20PM +0000, Jean-Pierre Ribeauville wrote:
> <channel type='pty'
> <target type='virtio'
name='arbitrary.virtio.serial.port.name'/
> <address type='virtio-serial' controller='0' bus='0'
port='1'/
> </channel
Hi,
I try to exchange datas between host and Guest by adding these
lines in a guest .xml conf file :
Then /dev/virtio-ports/arbitrary.virtio.serial.port.name is exposed
in the guest and a /dev/pts/x is seen as source path on the host.
I checked that on two Linux hosts :
1)
libvirt-daemon-driver-qemu-1.2.8-16.el7_1.3.x86_64
qemu-kvm-1.5.3-86.el7_1.5.x86_64
qemu-kvm-common-1.5.3-86.el7_1.5.x86_64
qemu-guest-agent-2.1.0-4.el7.x86_64
ipxe-roms-qemu-20130517-6.gitc4bce43.el7.noarch
qemu-img-1.5.3-86.el7_1.5.x86_64
Linux sparring 3.10.0-229.el7.x86_64 #1 SMP Thu Jan 29 18:37:38 EST
2015 x86_64 x86_64 x86_64 GNU/Linux
2)
qemu-img-0.12.1.2-2.415.el6.x86_64
qemu-kvm-0.12.1.2-2.415.el6.x86_64
gpxe-roms-qemu-0.9.7-6.10.el6.noarch
Linux orion 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST
2013
x86_64 x86_64 x86_64 GNU/Linux
The device is only exposed on the guest of the first host .
Is it due to a too old version of qemu and/or Linux on the second
host or some packages missing on this second host ?
Libvirt should tell you if qemu / host is too old, so sounds like a guest issue instead.
Perhaps the guest kernel-module has not been loaded for the second guest ?
Regards,
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
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2 comments
2 participants
participants (2)
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Daniel P. Berrange -
Jean-Pierre Ribeauville