tz_vmm on imx6

[Madhu (Macaque Labs)]

Chirag,
Just do not use the uart concurrently. Try using it only for normal mode.
See if that alleviated the issue.
On Jan 2, 2015 7:03 PM, "chirag garg" <chiragdthinker at ...9...> wrote:

> Thanks Stefan,
>
> So what could be the right approach to prevent the UART driver from
> getting corrupted ?
>
> Now, I want to switch the control from Normal world OS (Genode) back to
> the Secure world OS (Genode) by triggering(running a particular script in
> Normal world). So what could be the right approach to achieve this
> objective ?
>
> Regards
>
> Chirag Garg
> IIT Madras , Rise Lab
>
> On Fri, Jan 2, 2015 at 5:14 PM, Stefan Kalkowski <
> stefan.kalkowski at ...1...> wrote:
>
>> Hi,
>>
>> On 12/24/2014 10:49 AM, chirag garg wrote:
>> > Hi all,
>> >
>> > I was trying to run tz_vmm script over the imx6 platform. In which i
>> > have put Genode OS image (printf script) as a guest OS in the Normal
>> > world to test the switching between the Secure world to the Normal
>> > world. And the following is the output I am getting..
>> >
>> >
>> > Starting kernel ...
>> >
>> > kernel initialized
>> > Genode 14.11
>> > int main(): --- create local services ---
>> > Inside platform services 0
>> > Inside platform services 1
>> > Inside platform services 2
>> > Inside platform services 3
>> > int main(): --- start init ---
>> > int main(): transferred 250 MB to init
>> > int main(): --- init created, waiting for exit condition ---
>> > [init] Could not open file "ld.lib.so <http://ld.lib.so>"
>> > [init] parent provides
>> > [init]   service "ROM"
>> > [init]   service "RAM"
>> > [init]   service "IRQ"
>> > [init]   service "IO_MEM"
>> > [init]   service "CAP"
>> > [init]   service "PD"
>> > [init]   service "RM"
>> > [init]   service "CPU"
>> > [init]   service "LOG"
>> > [init]   service "SIGNAL"
>> > [init]   service "VM"
>> > [init] child "tz_vmm"
>> > [init]   RAM quota:  3932160
>> > [init]   ELF binary: tz_vmm
>> > [init]   priority:   0
>> > [init -> tz_vmm] Start virtual machine ...
>> > kernel initialized
>> > Genode 14.08
>> > int main(): --- create local services ---
>> > int main(): --- start init ---
>> > int main(): transferred 509 MB to init
>> > int main(): --- init created, waiting for exit condition ---
>> > [init] Could not open file "ld.lib.so <http://ld.lib.so>"
>> > [init -> test-printf] -1 = -1 = -1
>> > [init] virtual void Genode::Child_policy::exit(int): child exited with
>> > exit value 0
>> > [init -> tz_vmm]
>> >
>> > The last message on the window is [init -> tz_vmm] and nothing happens
>> > after that.
>> >
>> > Could you please let me know if this is the correct output?
>>
>> Well, in general it looks good the whole guest scenario seems to
>> succeed. I don't know why the last uncompleted message is printed, but
>> it may be that at last some VM exception is caught by the VMM, but the
>> UART driver gets corrupted, because you use the UART device from both
>> world concurrently.
>> However, in general the world switch seems to work as expected.
>>
>> Regards
>> Stefan
>>
>> >
>> > Regards
>> >
>> > Chirag Garg
>> > IIT Madras , Rise Lab
>> >
>> >
>> >
>> ------------------------------------------------------------------------------
>> > Dive into the World of Parallel Programming! The Go Parallel Website,
>> > sponsored by Intel and developed in partnership with Slashdot Media, is
>> your
>> > hub for all things parallel software development, from weekly thought
>> > leadership blogs to news, videos, case studies, tutorials and more.
>> Take a
>> > look and join the conversation now. http://goparallel.sourceforge.net
>> >
>> >
>> >
>> > _______________________________________________
>> > genode-main mailing list
>> > genode-main at lists.sourceforge.net
>> > https://lists.sourceforge.net/lists/listinfo/genode-main
>> >
>>
>> --
>> Stefan Kalkowski
>> Genode Labs
>>
>> http://www.genode-labs.com/ · http://genode.org/
>>
>>
>> ------------------------------------------------------------------------------
>> Dive into the World of Parallel Programming! The Go Parallel Website,
>> sponsored by Intel and developed in partnership with Slashdot Media, is
>> your
>> hub for all things parallel software development, from weekly thought
>> leadership blogs to news, videos, case studies, tutorials and more. Take a
>> look and join the conversation now. http://goparallel.sourceforge.net
>> _______________________________________________
>> genode-main mailing list
>> genode-main at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/genode-main
>>
>
>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming! The Go Parallel Website,
> sponsored by Intel and developed in partnership with Slashdot Media, is
> your
> hub for all things parallel software development, from weekly thought
> leadership blogs to news, videos, case studies, tutorials and more. Take a
> look and join the conversation now. http://goparallel.sourceforge.net
> _______________________________________________
> genode-main mailing list
> genode-main at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/genode-main
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.genode.org/pipermail/users/attachments/20150102/640c1567/attachment.html>