On 11/29/19 3:02 PM, Janosch Frank wrote:
[...]
As a mgmt app I think there will be a need to be able to determine
whether a host + QEMU combo is actually able to support protected
machines. If the mgmt app is given an image and the users says it
required protected mode, then the mgmt app needs to know which
host(s) are able to run it.
Doing version number checks is not particularly desirable, so is
there a way libvirt can determine if QEMU + host in general supports
protected machines, so that we can report this feature to mgmt apps ?
I thought that would be visible via the cpu model by checking for the
unpack facility (161)?
Time for somebody else to explain that.
@Viktor @Boris: This one's for you.
Right, a management app could check the supported CPU model, with
something like virsh domcapabilities. The domain's CPU model would have
to require the 'unpack' facility. So, in theory any management app
establishing CPU model compatibility using the libvirt APIs should be
able to find appropriate hosts.
[...]
--
Kind Regards,
Viktor
