topic SSA and TCS Data Structure in SGX in Intel Confidential Computing

SSA and TCS Data Structure in SGX

SAM_R_2 — Thu, 08 Sep 2016 06:04:33 GMT

Hi,

I want to advance RIP to ignore the faulting instruction, but I can't find a way to access TCS or SSA to change the stored RIP. Could you let me know how can I access such data structures available in SGX?

-Thanks

Hi Sam,

Surenthar_S_Intel — Thu, 08 Sep 2016 06:41:35 GMT

Hi Sam,

The exception handler has one parameter, a pointer to sgx_exception_info_t.

The sgx_cpu_context_t part of this parameter is loaded with the CPU registers from the SSA frame.

After the exception handler returns and only if it returns EXCEPTION_CONTINUE_EXECUTION, which indicates the exception has been handled, the updated CPU context values will be stored back into the SSA frame.

Thanks and Regards,
Surenthar Selvaraj

Thanks Surenthar

SAM_R_2 — Thu, 08 Sep 2016 06:49:43 GMT

Thanks Surenthar