linux_dsm_epyc7002/drivers/vfio
Robin Murphy d16e0faab9 iommu: Allow selecting page sizes per domain
Many IOMMUs support multiple page table formats, meaning that any given
domain may only support a subset of the hardware page sizes presented in
iommu_ops->pgsize_bitmap. There are also certain use-cases where the
creator of a domain may want to control which page sizes are used, for
example to force the use of hugepage mappings to reduce pagetable walk
depth.

To this end, add a per-domain pgsize_bitmap to represent the subset of
page sizes actually in use, to make it possible for domains with
different requirements to coexist.

Signed-off-by: Will Deacon <will.deacon@arm.com>
[rm: hijacked and rebased original patch with new commit message]
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-05-09 15:33:29 +02:00
..
pci VFIO updates for v4.6-rc1 2016-03-17 13:05:09 -07:00
platform vfio: fix ioctl error handling 2016-02-28 07:38:52 -07:00
Kconfig vfio: Include No-IOMMU mode 2015-12-21 15:28:11 -07:00
Makefile vfio: Split virqfd into a separate module for vfio bus drivers 2015-03-17 08:33:38 -06:00
vfio_iommu_spapr_tce.c vfio: powerpc/spapr: Support Dynamic DMA windows 2015-06-11 15:16:55 +10:00
vfio_iommu_type1.c iommu: Allow selecting page sizes per domain 2016-05-09 15:33:29 +02:00
vfio_spapr_eeh.c drivers/vfio: Support EEH error injection 2015-05-12 20:33:35 +10:00
vfio.c vfio: Add capability chain helpers 2016-02-22 16:10:08 -07:00
virqfd.c vfio: Split virqfd into a separate module for vfio bus drivers 2015-03-17 08:33:38 -06:00