[PATCH 0/5] VFIO: cpr-transfer fixes

[Zhenzhong Duan <zhenzhong.duan@intel.com>]

Hi,

Patch1: fixed an error restore path when virtio-mem is configured.
Patch2: fixed assert failure on error restore path, this issue happens
no matter if virtio-mem is configured.
Some trick is played to trigger the error path,
see https://github.com/yiliu1765/qemu/commit/494d19e7f7242dbc47d7f236937cde0c396a4a7c

Patch3-4: issue only happens with two or more VFIO devices, no issue
if only one VFIO device.

Patch5: SIGSEGV if I send "query-balloon" to source qmp monitor,
I'm not quite sure if it's deserved to be fixed, as guest has been
migrated to destination, it's not a big issue for source qemu to
SIGSEGV?

Thanks
Zhenzhong


Zhenzhong Duan (5):
  vfio/container: Remap only populated parts in a section
  vfio/cpr-legacy: drop an erroneous assert
  vfio/iommufd: Save cpr.ioas_id on source side for CPR transfer
  vfio/iommufd: Restore vbasedev's reference to hwpt after CPR transfer
  accel/kvm: Fix SIGSEGV when execute "query-balloon" after CPR transfer

 include/hw/vfio/vfio-cpr.h |  2 +-
 accel/kvm/kvm-all.c        |  2 +-
 hw/vfio/cpr-legacy.c       | 22 +++++++++++++++-------
 hw/vfio/iommufd.c          |  8 ++++----
 hw/vfio/listener.c         |  4 ++--
 5 files changed, 23 insertions(+), 15 deletions(-)

-- 
2.47.1