Demystifying the Secure Enclave Processor
LytVKz
LytVKz
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Mailbox Mechanism<br />
Start<br />
Write<br />
operation?<br />
No<br />
Read<br />
operation?<br />
Yes<br />
Yes<br />
Yes<br />
Address ==<br />
Inbox<br />
Address ==<br />
Outbox<br />
Yes<br />
No<br />
No<br />
Update inbox with<br />
write data<br />
Ignore write<br />
operation<br />
Respond to read<br />
with nonce data<br />
No<br />
Respond to read<br />
with outbox data<br />
Yes<br />
Generate interrupt<br />
for AP processor<br />
Generate interrupt<br />
for SEP processor<br />
Data written to<br />
outbox?<br />
No<br />
Done
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