diff options
| author | Jean-Philippe Brucker <[email protected]> | 2021-04-01 17:47:12 +0200 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2021-04-07 10:54:28 +0200 |
| commit | 34b48c704d194738eef0893aa06e412bdc8a972f (patch) | |
| tree | 1dda798acf14d87c1f3358c6202e5311158eba13 /scripts/gdb/linux/proc.py | |
| parent | 434b73e61cc65cdd26618af6fa4736c2ba1eb29b (diff) | |
iommu: Separate IOMMU_DEV_FEAT_IOPF from IOMMU_DEV_FEAT_SVA
Some devices manage I/O Page Faults (IOPF) themselves instead of relying
on PCIe PRI or Arm SMMU stall. Allow their drivers to enable SVA without
mandating IOMMU-managed IOPF. The other device drivers now need to first
enable IOMMU_DEV_FEAT_IOPF before enabling IOMMU_DEV_FEAT_SVA. Enabling
IOMMU_DEV_FEAT_IOPF on its own doesn't have any effect visible to the
device driver, it is used in combination with other features.
Reviewed-by: Eric Auger <[email protected]>
Reviewed-by: Lu Baolu <[email protected]>
Signed-off-by: Jean-Philippe Brucker <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'scripts/gdb/linux/proc.py')
0 files changed, 0 insertions, 0 deletions