[Qemu-devel] [RFC v2 0/3] vITS save/restore

[Eric Auger <eric.auger@redhat.com>]

This series allows ITS save/restore and migration use cases.
It relies on not upstreamed kernel series [1].

ITS tables are flushed into guest RAM on VM stop while registers
are save on pre_save() callback. Tables and registers are restored
on ITS post_load().

That work was tested on Cavium ThunderX using virsh save/restore and
virt-manager live migration.

Best Regards

Eric

Host Kernel dependencies:
- [1] [PATCH v3 00/19] vITS save/restore

History:

v1 -> v2:
- rebase on 2.9 soft release code
- handle case where migrate_add_blocker fails
- add comments along with ITS and GICv3 migration priorities

Eric Auger (3):
  linux-headers: Update for vITS save/restore
  hw/intc/arm_gicv3_its: Implement state save/restore
  hw/intc/arm_gicv3_its: Allow save/restore

 hw/intc/arm_gicv3_common.c                  |   1 +
 hw/intc/arm_gicv3_its_common.c              |  11 ++-
 hw/intc/arm_gicv3_its_kvm.c                 | 109 +++++++++++++++++++++++++---
 include/hw/intc/arm_gicv3_its_common.h      |   6 ++
 include/migration/vmstate.h                 |   2 +
 include/standard-headers/linux/virtio_pci.h |   2 +-
 linux-headers/asm-arm/kvm.h                 |   2 +
 linux-headers/asm-arm64/kvm.h               |   2 +
 linux-headers/linux/userfaultfd.h           |  16 ++--
 9 files changed, 132 insertions(+), 19 deletions(-)

-- 
2.5.5