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This PR removes the OP-TEE shim's guest TA allocation (i.e., no punchthrough). It assumes that TAs are built with patched libutee and entry function to configure the x86_64 stack guard. For example, the AES TA test succeeds because it is rebuilt whereas the KMPP TA test fails (other two TAs don't access fs at all).
Note: this does not mean API is unchanged, or even that there are no breaking changes; simply, none of the detections triggered.
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DRAFT
This PR removes the OP-TEE shim's guest TA allocation (i.e., no punchthrough). It assumes that TAs are built with patched
libuteeand entry function to configure thex86_64stack guard. For example, the AES TA test succeeds because it is rebuilt whereas the KMPP TA test fails (other two TAs don't accessfsat all).Ref: https://github.com/MSRSSP/op-tee-ia/blob/main/stack_guard.patch