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| author | Anshuman Gupta <[email protected]> | 2020-02-20 12:32:16 +0000 |
|---|---|---|
| committer | Ramalingam C <[email protected]> | 2020-03-04 01:28:36 +0000 |
| commit | beb7712923e57e36b4db7d00cc70968065a5b265 (patch) | |
| tree | 43c729e2829ae2e7334276a28bb035a13282fcce /drivers/gpu/drm/drm_dp_mst_topology.c | |
| parent | drm/i915/gem: Only call eb_lookup_vma once during execbuf ioctl (diff) | |
| download | kernel-beb7712923e57e36b4db7d00cc70968065a5b265.tar.gz kernel-beb7712923e57e36b4db7d00cc70968065a5b265.zip | |
drm/i915/hdcp: Mandate (seq_num_V==0) at first RecvId msg
HDCP Repeater initializes seq_num_V to 0 at the beginning of
hdcp Session i.e. after AKE_init received, refer
HDCP 2.2 Spec HDMI PAGE 19, DP PAGE 20.
HDCP 2.2 Comp specs 1B-06 test verifies that whether DUT
considers failure of authentication if the repeater provides a
non-zero value in seq_num_V in the first,
RepeaterAuth_Send_ReceiverID_List message.
Make sure that HDCP repeater initializes seq_num_V to zero at
beginning of session i.e. after AKE_Init, fail the Auth if
there is non zero seq_num_V.
v2:
- Used existing hdcp2_encrypted flag instead of
declaring new flag. [Ram]
Cc: Ramalingam C <[email protected]>
Reviewed-by: Ramalingam C <[email protected]>
Signed-off-by: Anshuman Gupta <[email protected]>
Signed-off-by: Ramalingam C <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/gpu/drm/drm_dp_mst_topology.c')
0 files changed, 0 insertions, 0 deletions