Yet another try, reworked the whole patchset.
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.
Please comment. Thanks!
Changes:
v4:
* have 2 listeners now - "iommu" and "prereg"
* removed iommu_data
* many smaller changes
v3:
* removed incorrect "vfio: Skip PCI BARs in memory listener"
* removed page size changes from quirks as they did not completely fix
the crashes happening on POWER8 (only total removal helps there)
* added "memory: Add reporting of supported page sizes"
Alexey Kardashevskiy (4):
memory: Add reporting of supported page sizes
vfio: Generalize IOMMU memory listener
vfio: Use different page size for different IOMMU types
vfio: spapr: Add SPAPR IOMMU v2 support (DMA memory preregistering)
hw/ppc/spapr_iommu.c | 8 ++
hw/vfio/common.c | 217 +++++++++++++++++++++++++++++++++---------
include/exec/memory.h | 11 +++
include/hw/vfio/vfio-common.h | 26 ++---
memory.c | 9 ++
trace-events | 2 +
6 files changed, 214 insertions(+), 59 deletions(-)