Alex Waterman
37b8298a48
gpu: nvgpu: add speculative load barrier (sched 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 2039126
CVE-2017-5753
Change-Id: Iec23eb75ce2a9251c8a5c8cbdd21a32910e1a71a
Signed-off-by: Alex Waterman <alexw@nvidia.com >
Reviewed-on: https://git-master.nvidia.com/r/1640502
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com >
Reviewed-by: Richard Zhao <rizhao@nvidia.com >
GVS: Gerrit_Virtual_Submit
Reviewed-by: Konsta Holtta <kholtta@nvidia.com >
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com >
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com >
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com >
2018-01-25 14:25:47 -08:00
Terje Bergstrom
2f6698b863
gpu: nvgpu: Make graphics context property of TSG
...
Move graphics context ownership to TSG instead of channel. Combine
channel_ctx_gk20a and gr_ctx_desc to one structure, because the split
between them was arbitrary. Move context header to be property of
channel.
Bug 1842197
Change-Id: I410e3262f80b318d8528bcbec270b63a2d8d2ff9
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com >
Reviewed-on: https://git-master.nvidia.com/r/1639532
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com >
Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com >
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com >
GVS: Gerrit_Virtual_Submit
Reviewed-by: Konsta Holtta <kholtta@nvidia.com >
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com >
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com >
2018-01-17 12:29:09 -08:00
Terje Bergstrom
d7fe2fbacb
gpu: nvgpu: Move sched to be Linux specific
...
Move sched parameter APIs to be Linux specific implementation. At
the same time the sched_ctrl fields were moved to nvgpu_os_linux.
JIRA NVGPU-259
Change-Id: I2397e2602e1c4783f2bebf3aec462634b7f86d4a
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com >
Reviewed-on: https://git-master.nvidia.com/r/1580649
GVS: Gerrit_Virtual_Submit
2017-10-20 10:05:29 -07:00
