bare-hw trustzone on the Freescale i.MX 6 Sabre SD board
Mahdi Aichouch
foxmehdi at ...9...
Tue Jan 13 16:06:55 CET 2015
Hello,
I have a question about how the tz_vmm protects the memory reserved to the
"Secure World"
in the case of the versatile express cortex a9 (vea9x4) implementation.
In the case of the imx53, I saw that the Multi-Master Multi Memory
Interface (MI4F)
controller is used to secure memory region reserved to the "Secure World".
According to the arm versatile express cortex a9 board, the Trustzone
Address Space Controller (TZASC) is used,
which is also the case on the i.MX6 board.
However, I didn't find out in the vea9x4 implementation how the memory
region reserved to the "Secure World"
is protected is by the TZASC?
In the i.mx53 implementation of tz_vmm , the secure memory space is
explicitly specified at the creation of MI4F object.
Could someone give some explanation about this point.
Thanks very much in advance.
best regards,
Mahdi
On Fri, Jan 9, 2015 at 12:27 PM, Mahdi Aichouch <foxmehdi at ...9...> wrote:
> Ah, yes thank you very much ! You're right I was on the wrong branch.
>
> On Fri, Jan 9, 2015 at 12:14 PM, Stefan Kalkowski <
> stefan.kalkowski at ...1...> wrote:
>
>> Hello,
>>
>> On 01/09/2015 10:51 AM, Mahdi Aichouch wrote:
>> > Hello,
>> >
>> > Thank you very much for your helpful answers.
>> >
>> > However, I checked the
>> > repository https://bitbucket.org/casl/secureos, but I did not find a
>> > support of
>> > trustzone on the imx6 platform based on neither older or recent version
>> > of genode.
>>
>> Maybe you didn't checked the right branch?
>>
>> At least I can see TrustZone related code for i.MX6 in this branch of
>> the same repository:
>>
>>
>>
>> https://bitbucket.org/casl/secureos/src/e79eef4169050c321aaff38c59e429e2e88fbe2f/?at=Genode-14.11
>>
>> Regards
>> Stefan
>>
>> >
>> > kindest regards,
>> > Mahdi
>> >
>> >
>> >
>> > On Fri, Jan 9, 2015 at 2:02 AM, Madhu (Macaque Labs) <madhu at ...275...
>> > <mailto:madhu at ...275...>> wrote:
>> >
>> > I thought we were ! If it is not happening, I will make sure we do
>> > so from today.
>> >
>> > On Fri, Jan 9, 2015 at 1:00 AM, Christian Helmuth
>> > <christian.helmuth at ...1...
>> > <mailto:christian.helmuth at ...1...>> wrote:
>> >
>> > Hello,
>> >
>> > On Thu, Jan 08, 2015 at 07:17:32PM +0100, Stefan Kalkowski
>> wrote:
>> > > Alternatively, maybe Chirag Garg and the IIT Madras Rise Lab
>> like to
>> > > share their work on i.MX6 platform with you, or respectively
>> the public
>> > > in general? AFAIK they already ported that work to the recent
>> Genode
>> > > release.
>> >
>> > IIRC IIT Madras shares its work at Bitbucket
>> >
>> > https://bitbucket.org/casl/secureos
>> >
>> > Unfortunately, they don't preserve Genode commit history from
>> what I
>> > understand after a quick look.
>> >
>> > Regards
>> > --
>> > Christian Helmuth
>> > Genode Labs
>> >
>> > http://www.genode-labs.com/ · http://genode.org/
>> > https://twitter.com/GenodeLabs · /ˈdʒiː.nəʊd/
>> >
>> > Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz
>> Dresden
>> > Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth
>> >
>> >
>> ------------------------------------------------------------------------------
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>> >
>> >
>> > --
>> > Regards,
>> > Madhu
>> >
>> >
>> ------------------------------------------------------------------------------
>> > Dive into the World of Parallel Programming! The Go Parallel
>> Website,
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>> thought
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>> > Take a
>> > look and join the conversation now.
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>> >
>> >
>> ------------------------------------------------------------------------------
>> > 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
>> >
>> >
>> >
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>> >
>>
>> --
>> 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
>>
>
>
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