[libvirt] Possible to set iSCSI initiator-name?

[Richard W.M. Jones]

Glancing at the libvirt code in git, it doesn't appear to be possible
to set the iSCSI initiator name for domains which are backed with
iSCSI disks.

Some background:

When qemu contacts the iSCSI target, it sends its own initiator name,
which, if not set, defaults to 'iqn.2008-11.org.linux-kvm'.

Some iSCSI targets have variable configuration keyed on the initiator
name -- that is definitely the case for a userspace iscsi target that
I tested (called pyTarget[1]), and for a libguestfs user's unspecified
target[2].

qemu lets you override the default initiator name[3] using:

  qemu -iscsi initiator-name=iqn.YYYY-MM...

This appears to be a global setting.  I'm not clear if it makes sense
or is possible to have multiple initiator names for a single qemu.

I'm not missing something am I?

(Note I'm not talking about storage pools which do have a way to
specify initiator name).

Rich.

[1] https://pytarget.codeplex.com/
[2] https://www.redhat.com/archives/libguestfs/2014-July/msg00013.html
[3] https://lists.gnu.org/archive/html/qemu-devel/2012-01/msg02765.html

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