diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2016-09-12 12:14:00 -0400 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2016-09-16 04:34:22 -0400 |
| commit | fade1ec055dc6b6373e7487906b7899b41d0c46f (patch) | |
| tree | d8583918947bb5936ecf6e26f8b22598cca7e604 /net/lapb/lapb_in.c | |
| parent | 44bb7e243bd4b4e5c79de2452cd9762582f58925 (diff) | |
iommu/dma: Avoid PCI host bridge windows
With our DMA ops enabled for PCI devices, we should avoid allocating
IOVAs which a host bridge might misinterpret as peer-to-peer DMA and
lead to faults, corruption or other badness. To be safe, punch out holes
for all of the relevant host bridge's windows when initialising a DMA
domain for a PCI device.
CC: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Inki Dae <inki.dae@samsung.com>
Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'net/lapb/lapb_in.c')
0 files changed, 0 insertions, 0 deletions