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diff --git a/docs/porting-guide.md b/docs/porting-guide.md index 747cb005..a30535d7 100644 --- a/docs/porting-guide.md +++ b/docs/porting-guide.md @@ -392,6 +392,17 @@ The ARM FVP port uses this function to initialize the mailbox memory used for providing the warm-boot entry-point addresses. +### Function: plat_match_rotpk() + + Argument : const unsigned char *, unsigned int + Return : int + +This function is mandatory when Trusted Board Boot is enabled. It receives a +pointer to a buffer containing a signing key and its size as parameters and +returns 0 (success) if that key matches the ROT (Root Of Trust) key stored in +the platform. Any other return value means a mismatch. + + 2.3 Common optional modifications --------------------------------- |