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[RFC PATCH 0/3] Fix "virsh domfsinfo" on s390x (again)

My previous attempts to fix "virsh domfsinfo" on s390x were unfortunately
wrong due to some misunderstandings on my side.

To correctly list the "Target" device in the output of "virsh domfsinfo",
we need to search through the available devices using their CCW address
on s390x.

For this the QEMU guest agent will be enhanced to also send the CCW
address of devices in the guest (see the following URL for details:
https://lore.kernel.org/qemu-devel/20201125105417 380317-1-thuth redhat com/
... but it has just been posted and will take some time to get merged,
since QEMU is still in hard freeze, that's why I've labed this libvirt
series here as RFC only). Using this CCW address, we then can look up
the correct target devices on the libvirt side, too.

See also https://bugzilla.redhat.com/show_bug.cgi?id=1858771 for some
more information.

Thomas Huth (3):
  qemu: agent: Store CCW address in qemuAgentDiskInfo if provided by the
  domain_conf: Allow to look up virtio-block devices by their CCW
  domain_conf: Allow to look up scsi disks when controller uses a CCW

 src/conf/domain_conf.c | 33 ++++++++++++++++++++++++++++++++-
 src/conf/domain_conf.h |  4 ++++
 src/qemu/qemu_agent.c  | 11 +++++++++++
 src/qemu/qemu_agent.h  |  2 ++
 src/qemu/qemu_driver.c |  8 +++++---
 5 files changed, 54 insertions(+), 4 deletions(-)


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