Create diagrams of SGX stack changes - Githubissues

enarx / outreach

Outreach efforts for the Enarx project

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Create diagrams of SGX stack changes #28

Closed lkatalin closed 2 years ago

lkatalin commented 4 years ago

This should illustrate the entire trusted stack space and state changes. The stack space should include:

the randomized space before crt0
crt0
the space after crt0 (considered just part of stack from POV of jump())
CSSA[0]'s area after AEX
the AEX "red zone"
the trusted stack area as used by start.S to hold trusted and untrusted nonvolatile register info as depicted here

Specifically, a flow diagram should include how the stack changes through the handling of a syscall and the state of the stack pointer at each step.