TrustZone on i.MX53 QSB

[Daeyoung Kim]

Hi Stefan,

Thank you for your help.


2014-07-01 12:03 GMT-04:00 Stefan Kalkowski <
stefan.kalkowski at ...1...>:

> Hi Daeyoung Kim,
>
> On 06/23/2014 11:18 PM, Daeyoung Kim wrote:
> > Hi everyone,
> >
> > I have two questions during testing the tz_vmm on i.MX53 QSB.
> >
> > 1. I want to set up the TrustZone environment like switching between SW
> and
> > NW on Android in NW on top of Genode in SW, but don't know what I should
> do
> > exactly. Do you have any manual or advice for this? Which part should I
> > look into?
>
> I assume you want to reproduce the same demo scenario we presented on
> the i.MX53 SABRE Tablet in this video [1]? If this is the case, you've
> first to develop an input driver for the touchscreen of the  i.MX53
> Quickstart Board, which is in contrast to the SABRE Tablet not yet
> available. The whole setup, as well as how to reproduce that scenario on
> the SABRE tablet can you read in this article [2].
> If you've more specific questions regarding the scenario, feel free to
> ask them.
>
> [1] http://www.youtube.com/watch?feature=player_embedded&v=voFV1W4yyY8
> [2] http://genode.org/documentation/articles/trustzone
>
> OK, I see. I will ask them later.


> >
> > 2. How can I test switching the two worlds on the tz_vmm?
>
> If you run the automated run test 'tz_vmm' that can be found in Genode's
> mainline repository, you don't have to do anything to test the world
> switch, the test is fully automatic, and if it succeeds the world switch
> worked perfectly. That test is not meant for demonstration purposes to
> switch manually between one world and the other, but it starts a Genode
> system including a TrustZone "normal world monitor", which boots a Linux
> kernel giving it access to almost all hardware resources e.g.: Ethernet
> card, and serial line. The Linux kernel boots till the end, and the
> automated run script instructs Linux' command prompt to access Genode's
> website via 'wget'. If the page was loaded correctly, the test succeeds.
> During this process a lot of world-switches between the secure world
> (Genode), and the normal world (Linux)
> occur, e.g.: each time a timer interrupt used by the scheduler of
> Genode's hw-kernel occurs.
> Of course you can extend the 'tz_vmm' run script to start more
> applications on the Genode side to see that part in action in parallel.
>
>
Yes, I made a simple application to test it.


Now I understand clearly this. Thanks again.

Regards,
Daeyoung


Regards
> Stefan
>
> >
> > Any help appreciated.
> >
> > Thank you!
> >
> > Regards,
> > Daeyoung
> >
> >
> >
> >
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>
> --
> Stefan Kalkowski
> Genode Labs
>
> http://www.genode-labs.com/ · http://genode.org/
>
>
> ------------------------------------------------------------------------------
> Open source business process management suite built on Java and Eclipse
> Turn processes into business applications with Bonita BPM Community Edition
> Quickly connect people, data, and systems into organized workflows
> Winner of BOSSIE, CODIE, OW2 and Gartner awards
> http://p.sf.net/sfu/Bonitasoft
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