diff options
| author | Bartosz Pawlowski <[email protected]> | 2023-09-08 14:36:06 +0000 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2023-10-18 16:12:46 -0500 |
| commit | a18615b1cfc04f00548c60eb9a77e0ce56e848fd (patch) | |
| tree | 0e55b8416b88e512e01e9a3367a861033d290c58 /tools/perf/util/trace-event-scripting.c | |
| parent | f18b1137d38c091cc8c16365219f0a1d4a30b3d1 (diff) | |
PCI: Disable ATS for specific Intel IPU E2000 devices
Due to a hardware issue in A and B steppings of Intel IPU E2000, it expects
wrong endianness in ATS invalidation message body. This problem can lead to
outdated translations being returned as valid and finally cause system
instability.
To prevent such issues, add quirk_intel_e2000_no_ats() to disable ATS for
vulnerable IPU E2000 devices.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Pawlowski <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: Alexander Lobakin <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions