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linux-sg2042/drivers/vfio
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Shivaprasad G Bhat 4ef01846c6 vfio/spapr: Always clear TCEs before unsetting the window 
[ Upstream commit 4ba2fdff2e ]

The PAPR expects the TCE table to have no entries at the time of
unset window(i.e. remove-pe). The TCE clear right now is done
before freeing the iommu table. On pSeries, the unset window
makes those entries inaccessible to the OS and the H_PUT/GET calls
fail on them with H_CONSTRAINED.

On PowerNV, this has no side effect as the TCE clear can be done
before the DMA window removal as well.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/171923273535.1397.1236742071894414895.stgit@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-09-12 11:11:31 +02:00
..
cdx vfio/cdx: Remove redundant initialization owner in vfio_cdx_driver 2023-08-16 11:13:51 -06:00
fsl-mc vfio/fsl-mc: Block calling interrupt handler without trigger 2024-04-03 15:28:49 +02:00
mdev vfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent() 2023-09-22 12:48:04 -06:00
pci vfio/pci: Init the count variable in collecting hot-reset devices 2024-07-18 13:21:10 +02:00
platform vfio/platform: Create persistent IRQ handlers 2024-04-03 15:28:49 +02:00
Kconfig vfio: Compile vfio_group infrastructure optionally 2023-07-25 10:20:50 -06:00
Makefile vfio: Compile vfio_group infrastructure optionally 2023-07-25 10:20:50 -06:00
container.c VFIO updates for v6.3-rc1 2023-02-25 11:52:57 -08:00
device_cdev.c vfio: Add VFIO_DEVICE_[AT|DE]TACH_IOMMUFD_PT 2023-07-25 10:20:37 -06:00
group.c vfio: Move the IOMMU_CAP_CACHE_COHERENCY check in __vfio_register_dev() 2023-07-25 10:20:41 -06:00
iommufd.c vfio: Support IO page table replacement 2023-07-28 13:31:24 -03:00
iova_bitmap.c iommufd/iova_bitmap: Consider page offset for the pages to be pinned 2024-03-01 13:35:05 +01:00
vfio.h vfio: Compile vfio_group infrastructure optionally 2023-07-25 10:20:50 -06:00
vfio_iommu_spapr_tce.c vfio/spapr: Always clear TCEs before unsetting the window 2024-09-12 11:11:31 +02:00
vfio_iommu_type1.c vfio: align capability structures 2023-08-17 12:17:44 -06:00
vfio_main.c iommufd for 6.6 2023-08-30 20:41:37 -07:00
virqfd.c vfio: Introduce interface to flush virqfd inject workqueue 2024-04-03 15:28:49 +02:00