Re: [libvirt] [virt-tools-list] Provision through virt-manager not supported on para-virtualized Xen?

2 Feb 2012

      On 02/02/2012 08:54 AM, Cheer Xiao wrote:
...
2012/2/2 Cole Robinson <crobinso@redhat.com>:
...
On 02/02/2012 08:05 AM, Cheer Xiao wrote:
...
Hi all,
I was setting up libvirt and virt-manager for managing Xen VMs. But
when I hit "New" in virt-manager to provision a new VM, virt-manager
gives me the error: "No install options available for this
connection."
The hypervisor being used is para-virtualized Xen, running on Debian Squeeze.
lux-002# xm info
host Â  Â  Â  Â  Â  Â  Â  Â  Â  : lux-002
release Â  Â  Â  Â  Â  Â  Â  Â : 2.6.32-5-xen-686
version Â  Â  Â  Â  Â  Â  Â  Â : #1 SMP Mon Jan 16 19:46:09 UTC 2012
machine Â  Â  Â  Â  Â  Â  Â  Â : i686
nr_cpus Â  Â  Â  Â  Â  Â  Â  Â : 4
nr_nodes Â  Â  Â  Â  Â  Â  Â  : 1
cores_per_socket Â  Â  Â  : 1
threads_per_core Â  Â  Â  : 2
cpu_mhz Â  Â  Â  Â  Â  Â  Â  Â : 3200
hw_caps Â  Â  Â  Â  Â  Â  Â  Â :
bfebfbff:20100000:00000000:00000180:0000641d:00000000:00000001:00000000
virt_caps Â  Â  Â  Â  Â  Â  Â :
total_memory Â  Â  Â  Â  Â  : 8191
free_memory Â  Â  Â  Â  Â  Â : 1150
node_to_cpu Â  Â  Â  Â  Â  Â : node0:0-3
node_to_memory Â  Â  Â  Â  : node0:1150
node_to_dma32_mem Â  Â  Â : node0:578
max_node_id Â  Â  Â  Â  Â  Â : 0
xen_major Â  Â  Â  Â  Â  Â  Â : 4
xen_minor Â  Â  Â  Â  Â  Â  Â : 0
xen_extra Â  Â  Â  Â  Â  Â  Â : .1
xen_caps Â  Â  Â  Â  Â  Â  Â  : xen-3.0-x86_32p
xen_scheduler Â  Â  Â  Â  Â : credit
xen_pagesize Â  Â  Â  Â  Â  : 4096
platform_params Â  Â  Â  Â : virt_start=0xf5800000
xen_changeset Â  Â  Â  Â  Â : unavailable
xen_commandline Â  Â  Â  Â : placeholder com1=9600,8n1 console=com1,vga
cc_compiler Â  Â  Â  Â  Â  Â : gcc version 4.4.5 (Debian 4.4.5-8)
cc_compile_by Â  Â  Â  Â  Â : waldi
cc_compile_domain Â  Â  Â : debian.org
cc_compile_date Â  Â  Â  Â : Mon Nov Â 7 09:18:26 CET 2011
xend_config_format Â  Â  : 4
lux-002# libvirtd --version
libvirtd (libvirt) 0.8.3
libvirt pokes into the host machine to try and figure out it's virt
capabilities. So something must be going wrong there. Here's the function it
uses in libvirt code:
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/xen/xen_hypervisor.c;h=b5...
Something must be funky or unexpected with /sys/hypervisor/properties/capabilities
This is how it looks:
lux-002% cat /sys/hypervisor/properties/capabilities
xen-3.0-x86_32p
So, is provision through on para-virtualized Xen *supposed* to be
supported or not?
That is saying your host supports 32bit paravirt guests only.

What's the output of 'virsh --connect xen:/// capabilities' ?

- Cole