Demystifying the Secure Enclave Processor
LytVKz
LytVKz
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SEPOS App Initialization<br />
Initialize Apps<br />
Read application list<br />
from sep-firmware<br />
Creates new process<br />
and address space<br />
(L4_SpaceControl)<br />
proc_create( ) No Last app in list?<br />
Yes<br />
Compute CRC of<br />
loaded images<br />
Compares CRC with value<br />
stored in sep-firmware<br />
CRC valid?<br />
Yes<br />
Done<br />
Maps <strong>the</strong> Mach-O<br />
header from physical<br />
memory<br />
ertp_map_page( )<br />
No<br />
Panic<br />
Reads Mach-O header<br />
and maps segments<br />
(L4_MapControl)<br />
macho2vm( ) thread_create( )<br />
Create and start new<br />
thread at app entry point<br />
(L4_ThreadControl)
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