drm/amd/display: add handling for hdcp2 rx id list validation

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[why]
the current implementation of hdcp2 rx id list validation does not
have handler/checker for invalid message status, e.g. HMAC, the V
parameter calculated from PSP not matching the V prime from Rx.

[how]
return a generic FAILURE for any message status not SUCCESS or
REVOKED.

Signed-off-by: Dingchen (David) Zhang <dingchen.zhang@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Dingchen (David) Zhang 2021-01-25 18:05:50 -05:00 • committed by Alex Deucher

parent 2673969035

commit 4ccf9446b2

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c

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