On 18/04/12 21:56, Bhasker C V wrote:
Hi all
I have faced this issue already and the solution was to go back to a
old version of qemu-kvm and/or libvirt and things start falling into
place but this time I would want to solve this.
I have used these versions as per the o/p of the commands below. To
jumpstart a new machine which is libvirt capable, it always is a hastle
to find out which of the version combination of libvirt,qemu-kvm will work.
Just by picking the latest of the two versions does not help and ends up
not supporting hvm at all
$ sudo virsh capabilities
<capabilities>
<host>
<uuid>34373030-3635-435a-4a32-313230485156</uuid>
<cpu>
<arch>x86_64</arch>
<model>Westmere</model>
<vendor>Intel</vendor>
<topology sockets='2' cores='4' threads='2'/>
<feature name='rdtscp'/>
<feature name='pdpe1gb'/>
<feature name='dca'/>
<feature name='pdcm'/>
<feature name='xtpr'/>
<feature name='tm2'/>
<feature name='est'/>
<feature name='smx'/>
<feature name='vmx'/>
<feature name='ds_cpl'/>
<feature name='monitor'/>
<feature name='dtes64'/>
<feature name='pclmuldq'/>
<feature name='pbe'/>
<feature name='tm'/>
<feature name='ht'/>
<feature name='ss'/>
<feature name='acpi'/>
<feature name='ds'/>
<feature name='vme'/>
</cpu>
<power_management/>
<migration_features>
<live/>
<uri_transports>
<uri_transport>tcp</uri_transport>
</uri_transports>
</migration_features>
</host>
</capabilities>
$ virsh --version
0.9.11
$ qemu-system-x86_64 --version
QEMU emulator version 1.0,1 (qemu-kvm-1.0.1), Copyright (c) 2003-2008
Fabrice Bellard
$ sudo virsh uri
qemu:///system
$ sudo virsh version
Compiled against library: libvir 0.9.11
Using library: libvir 0.9.11
Using API: QEMU 0.9.11
error: failed to get the hypervisor version
error: internal error Cannot find suitable emulator for x86_64
$ which kvm
/usr/local/bin/kvm
Forgot to mention that kvm is symbolic linked to qemu-system-x86_64
Can someone tell me, please, what is the version of qemu-kvm which will
work well with the latest libvirt 0.9.11 ? since clearly the latest
versions of qemu-kvm and libvirt are not compatible fully (atleast not hvm).
Even better if this is documented somewhere visible so that a lot of
time can be saved in iterating through the versions of qemu-kvm to find
out which one will work.
--
Bhasker C V
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