linux/drivers/vfio
Alexey Kardashevskiy d536202202 vfio/spapr_tce: Set window when adding additional groups to container
[ Upstream commit 930a42ded3 ]

If a container already has a group attached, attaching a new group
should just program already created IOMMU tables to the hardware via
the iommu_table_group_ops::set_window() callback.

However commit 6f01cc692a ("vfio/spapr: Add a helper to create
default DMA window") did not just simplify the code but also removed
the set_window() calls in the case of attaching groups to a container
which already has tables so it broke VFIO PCI hotplug.

This reverts set_window() bits in tce_iommu_take_ownership_ddw().

Fixes: 6f01cc692a ("vfio/spapr: Add a helper to create default DMA window")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-06-17 06:41:51 +02:00
..
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.c vfio: fix possible use after free of vfio group 2016-07-14 14:28:16 -06:00
vfio_iommu_spapr_tce.c vfio/spapr_tce: Set window when adding additional groups to container 2017-06-17 06:41:51 +02:00
vfio_iommu_type1.c vfio/type1: Remove locked page accounting workqueue 2017-05-20 14:28:38 +02:00
vfio_spapr_eeh.c drivers/vfio: Support EEH error injection 2015-05-12 20:33:35 +10:00
virqfd.c vfio: Split virqfd into a separate module for vfio bus drivers 2015-03-17 08:33:38 -06:00