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Finding the memory layout of the vita?

Open discussions on programming specifically for the PS Vita.
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rafael707
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Re: Finding the memory layout of the vita?

Post by rafael707 » Thu Mar 29, 2012 1:17 am

http://lolhax.org/2012/03/29/kermit/

hmm interesting info about sceKermit, this is off topic though..
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yifanlu
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Re: Finding the memory layout of the vita?

Post by yifanlu » Thu Mar 29, 2012 4:31 am

So we're moving off topic quickly, and I want to restate some points that I hope we'll discuss.

1) the ram is embedded in the CPU. That could (and most likely will) be a huge problem.
2) official sdk (not the pssuite) could provide debugging tools to reveal memory layout
3) there could be an privilege escalation exploit with the vita->psp Kermit protocol, it's a good place to look
4) there could even be psp Kermit commands that will directly or indirectly reveal the memory location

Basically, my no-evidence-supported advice is to poke more in psp mode and basically gather information.
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m0skit0
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Re: Finding the memory layout of the vita?

Post by m0skit0 » Thu Mar 29, 2012 9:26 am

yifanlu wrote:1) the ram is embedded in the CPU. That could (and most likely will) be a huge problem.
Hmmm, still, there should be a way other hardware parts communicate with RAM (DMA, etc...). Hooking those buses will surely give useful info.
yifanlu wrote:3) there could be an privilege escalation exploit with the vita->psp Kermit protocol, it's a good place to look
Probably, but still useless because we don't know anything about PSV's internals.
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Re: Finding the memory layout of the vita?

Post by konit_oo » Thu Mar 29, 2012 11:00 am

I know that i'm going to say is a bit off topic but I've other idea. It isn't connected with creating CFW for vita. So the idea... I read somewhere that if you make back up of PSV system, CMA will make a copy on your computer that'll include all of your videos, photos, applications and games. So if that's right we could theoretically find all of those back upped files and share them to other computer and then put them in another PS Vita system via CMA. So, on that way if my supposition is right we can share some 'legal' games on 'legal way', right? I haven't tried that so say what is the obstacle/flaw on entire idea or just your thought. :)

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Re: Finding the memory layout of the vita?

Post by SymphoniC » Thu Mar 29, 2012 11:30 am

konit_oo wrote:I know that i'm going to say is a bit off topic but I've other idea. It isn't connected with creating CFW for vita. So the idea... I read somewhere that if you make back up of PSV system, CMA will make a copy on your computer that'll include all of your videos, photos, applications and games. So if that's right we could theoretically find all of those back upped files and share them to other computer and then put them in another PS Vita system via CMA. So, on that way if my supposition is right we can share some 'legal' games on 'legal way', right? I haven't tried that so say what is the obstacle/flaw on entire idea or just your thought. :)
I don't think you understand what we are working to accomplish here.

What we are trying to do, is exploit the Vita in a manner that enables us to run homebrew (home made apps and games) and understand how the Vita works. What you are trying to do, is called piracy. Our goal isn't to be able to share copywritten games. It's to be able to write our own software for the Vita, understand how the Vita's OS and hardware works, and enjoy a fresh challenge in hacking. Please keep these kinds of suggestions off of these forums.

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Re: Finding the memory layout of the vita?

Post by m0skit0 » Thu Mar 29, 2012 12:00 pm

@konit_oo: nonsense. Such backup are surely signed with a per device key. Also please abstain posting off-topic.

@SymphoniC: definitely right :)
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Re: Finding the memory layout of the vita?

Post by garrei » Fri Mar 30, 2012 12:26 am

m0skit0 wrote:Probably, but still useless because we don't know anything about PSV's internals.
http://www.ifixit.com/Teardown/PlayStat ... own/7872/1 there you go :P
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Re: Finding the memory layout of the vita?

Post by yifanlu » Fri Mar 30, 2012 1:08 am

garrei wrote:
m0skit0 wrote:Probably, but still useless because we don't know anything about PSV's internals.
http://www.ifixit.com/Teardown/PlayStat ... own/7872/1 there you go :P
That provides no useful information unfortunately.

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Re: Finding the memory layout of the vita?

Post by garrei » Fri Mar 30, 2012 2:57 am

yeah i know... i was making a joke because it was a very broad statement. haha... anyway, thats enough trolling for today.
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Re: Finding the memory layout of the vita?

Post by m0skit0 » Fri Mar 30, 2012 6:30 am

Meh, those are not "internals" enough.
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