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author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-02-07 17:26:57 +1100 |
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committer | Alex Williamson <alex.williamson@redhat.com> | 2017-02-07 11:48:16 -0700 |
commit | 930a42ded3fede7ca3acafc9153f4f2d0f56a92c (patch) | |
tree | 7702a14229684c63fd7de1caa8440f17e5fad392 /drivers/pwm | |
parent | d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c (diff) | |
download | op-kernel-dev-930a42ded3fede7ca3acafc9153f4f2d0f56a92c.zip op-kernel-dev-930a42ded3fede7ca3acafc9153f4f2d0f56a92c.tar.gz |
vfio/spapr_tce: Set window when adding additional groups to container
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 6f01cc692a16 ("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: 6f01cc692a16 ("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>
Diffstat (limited to 'drivers/pwm')
0 files changed, 0 insertions, 0 deletions