SMC in tz_vmm

[Stefan Brenner]

Hi,

Have a look at section "World switch between non-secure world and secure
world" in http://genode.org/documentation/articles/trustzone. There it
says "Given this approach, the software stack running in the secure
world must not execute the smc instruction. This drastically simplifies
the assembler world-switch routine."

Best.

Am 23.01.15 um 06:11 schrieb chirag garg:
> Hi all,
> 
> I have some doubts in Genode Flow, ARM provides the smc instruction to
> enter in the monitor-mode which performs the world switch between normal
> world and secure world.
> 
> As tz_vmm script is also successfully achieving the above objective of
> world switch from the secure world to the normal world. But i am not
> able to figure out flow which will which execute a call of smc
> instruction in the run of tz_vmm script.
> 
> Can anyone explain me the flow ?
> 
> Thanks in advance.
> 
> Regards
> Chirag Garg
> IIT Madras , Rise Lab
> 
> 
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