TrustZone Vmm Questions

[Ofer Hasson]

I managed to pass data, solved it using "ioremap_nocache",
With regards to the restart, still no success.

Thanks.

On Sun, Jun 7, 2015 at 9:07 AM, Ofer Hasson <hassonof at ...310...> wrote:

> Hello,
>
> I'm trying to pass data between worlds, currently I'm allocating kernel
> space buffer in the normal world (Linux), passing the address using r0
> register and the size using r1 register.
> I manage to read the buffers reliably.
> When I'm trying to change the buffers in the secure world, I don't see the
> change in the normal world, at first i thought there was some compiler
> optimization issues, now I use -O0, next i thought this was CPU cache
> issues and now i use "flush_kernel_kmaps()" but still nothing.
> Any idea's on this issue ?
>
> Another question, how to i restart the board (iMX53) from genode code in
> the secure world ?
>
> Thanks a lot
>
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