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| author |   Hector Martin <marcan@marcan.st> | 2021-11-20 12:13:43 +0900 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2021-12-06 13:03:01 +0100 |
| commit | 9abe2ac834851a7d0b0756e295cf7a292c45ca53 (patch) | |
| tree | 9a4e00b2d77398f8aa8964d0e5ff9d0b7a5811eb /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | iommu: Extend mutex lock scope in iommu_probe_device() (diff) | |
| download | wireguard-linux-9abe2ac834851a7d0b0756e295cf7a292c45ca53.tar.xz wireguard-linux-9abe2ac834851a7d0b0756e295cf7a292c45ca53.zip | |
iommu/io-pgtable-arm: Fix table descriptor paddr formatting
Table descriptors were being installed without properly formatting the
address using paddr_to_iopte, which does not match up with the
iopte_deref in __arm_lpae_map. This is incorrect for the LPAE pte
format, as it does not handle the high bits properly.
This was found on Apple T6000 DARTs, which require a new pte format
(different shift); adding support for that to
paddr_to_iopte/iopte_to_paddr caused it to break badly, as even <48-bit
addresses would end up incorrect in that case.
Fixes: 6c89928ff7a0 ("iommu/io-pgtable-arm: Support 52-bit physical address")
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20211120031343.88034-1-marcan@marcan.st
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions