| 摘要 |
A platform independent secure domain providing apparatus, which determines whether an execution environment is to be in a secure domain and a non-secure domain by a secure bit. The apparatus includes a secure monitor that is adapted to generate a branch instruction when a call to a secure code is sensed, turn on the secure bit when the branch instruction has been successfully executed, and turn off the secure bit when the execution of the secure code is finished, an instruction bypass read only memory (ROM) adapted to receive the branch instruction from the secure monitor, and a processor adapted to execute the branch instruction that is fetched from the instruction bypass ROM. |
