drm/amdgpu: set TMZ bits in PTEs for secure BO (v4)

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If a buffer object is secure, i.e. created with
AMDGPU_GEM_CREATE_ENCRYPTED, then the TMZ bit of
the PTEs that belong the buffer object should be
set.

v1: design and draft the skeletion of TMZ bits setting on PTEs (Alex)
v2: return failure once create secure BO on non-TMZ platform  (Ray)
v3: amdgpu_bo_encrypted() only checks the BO (Luben)
v4: move TMZ flag setting into amdgpu_vm_bo_update  (Christian)

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

...

This commit is contained in:

Alex Deucher 2019-08-07 22:32:46 -05:00

parent cb5fae143d

commit 4cd24494cc

3 changed files with 26 additions and 1 deletions

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12

drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

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11

drivers/gpu/drm/amd/amdgpu/amdgpu_object.h

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4

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

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