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| author | Aparna Das <aparnad@nvidia.com> | 2018-02-05 15:36:11 -0500 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2018-02-06 23:03:26 -0500 |
| commit | 2a9431bbe008d9d6bcd10113341e4106cb3e564a (patch) | |
| tree | 331bfc47a6ee84fb17b5c5e66e62f0a08412ef29 /drivers/gpu/nvgpu/lpwr/rppg.c | |
| parent | 9402f4165b7a5568363f793e47bb893719639ca2 (diff) | |
gpu: nvgpu: add speculative load barrier (ctrl IOCTLs)
Data can be speculatively loaded from memory and stay in cache even
when bound check fails. This can lead to unintended information
disclosure via side-channel analysis.
To mitigate this problem insert a speculation barrier.
bug 2041355
Change-Id: I03fbc81c105632e788d8a0f97fb4e233d1124b49
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1652230
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/lpwr/rppg.c')
0 files changed, 0 insertions, 0 deletions