kernel_optimize_test/drivers/vfio
Alexey Kardashevskiy 6f01cc692a vfio/spapr: Add a helper to create default DMA window
There is already a helper to create a DMA window which does allocate
a table and programs it to the IOMMU group. However
tce_iommu_take_ownership_ddw() did not use it and did these 2 calls
itself to simplify error path.

Since we are going to delay the default window creation till
the default window is accessed/removed or new window is added,
we need a helper to create a default window from all these cases.

This adds tce_iommu_create_default_window(). Since it relies on
a VFIO container to have at least one IOMMU group (for future use),
this changes tce_iommu_attach_group() to add a group to the container
first and then call the new helper.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-12-02 14:38:31 +11:00
..
pci vfio/pci: Fix integer overflows, bitmask check 2016-10-26 13:49:29 -06:00
platform vfio: platform: mark symbols static where possible 2016-09-13 16:11:37 -06:00
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/spapr: Add a helper to create default DMA window 2016-12-02 14:38:31 +11:00
vfio_iommu_type1.c vfio/type1: Fix build warning 2016-05-30 07:58:10 -06:00
vfio_spapr_eeh.c drivers/vfio: Support EEH error injection 2015-05-12 20:33:35 +10:00
vfio.c vfio: fix possible use after free of vfio group 2016-07-14 14:28:16 -06:00
virqfd.c vfio: Split virqfd into a separate module for vfio bus drivers 2015-03-17 08:33:38 -06:00