[Qemu-devel] [PATCH qemu 0/5] vfio: SPAPR IOMMU v2 (memory preregistration support)

[Alexey Kardashevskiy <aik@ozlabs.ru>]

Here are few patches to prepare an existing listener for handling memory
preregistration for SPAPR guests running on POWER8.

This used to be a part of DDW patchset but now is separated as requested.
I left versions in changelog of 5/5 for convenience.

Regarding 1/5, there is a question - in reality DMA windows are always
a lot bigger than a single 4K page and aligned to 32/64MB, may be only
use there qemu_real_host_page_mask?

Please comment. Thanks!


Alexey Kardashevskiy (5):
  vfio: Switch from TARGET_PAGE_MASK to qemu_real_host_page_mask
  vfio: Skip PCI BARs in memory listener
  vfio: Store IOMMU type in container
  vfio: Refactor memory listener to accommodate more IOMMU types
  vfio: spapr: Add SPAPR IOMMU v2 support (DMA memory preregistering)

 hw/vfio/common.c              | 164 ++++++++++++++++++++++++++++--------------
 hw/vfio/pci.c                 |  30 ++++----
 include/hw/vfio/vfio-common.h |   1 +
 trace-events                  |   2 +
 4 files changed, 129 insertions(+), 68 deletions(-)

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2.4.0.rc3.8.gfb3e7d5