diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2019-08-07 22:32:46 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-28 16:20:29 -0400 |
| commit | 4cd24494cc87468145ccacd885446b2fec6cb856 (patch) | |
| tree | 0c4a7acaefd666b7bad86e46862d2984a0317234 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | cb5fae143d79d255251921066dbf8eae16383639 (diff) | |
drm/amdgpu: set TMZ bits in PTEs for secure BO (v4)
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index bcdaf5204d05..0d8210553059 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1784,6 +1784,10 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va, if (bo) { flags = amdgpu_ttm_tt_pte_flags(adev, bo->tbo.ttm, mem); + + if (amdgpu_bo_encrypted(bo)) + flags |= AMDGPU_PTE_TMZ; + bo_adev = amdgpu_ttm_adev(bo->tbo.bdev); } else { flags = 0x0; |