GeoHot Releases Sample PS3 Linux Isolated SPU Loader Code


221w ago - Today GeoHot has released sample PS3 Linux isolated SPU loader code for those with OtherOS to experiment with.

To quote: "Right now, I'm playing with the isolated SPEs, trying to get metldr to load from OtherOS. Interesting thing, I am not using the exploit. I always assumed the enable isolation mode register was hypervisor privileged.

It's not, it's kernel privileged, which means using hypervisor calls you can all get to it. So, get to hacking. Here is the code I am playing with.

I'm not that opposed to releasing the exploit, but I think the majority of you are going to be disappointed, even if you do get it working. Unless you have pushed the HV to it's limits, this exploit really isn't going to do much for you... yet.

So install OtherOS and start playing around. If people start coming up with convincing reasons why they need the exploit to go further, I'll release it. It's just a waste to release if people can't make use of it.

As far as the GPU goes, I have full access to the GPU memory space 0x2800... But without a driver, it's useless. 3D video card drivers are notoriously hard to write, look at the ATI and NVIDIA ones for linux. The best are still the closed source manufacturer ones.

I'm not even sure I believe that the HV restricts video card access, just that the OtherOS driver is 2D. If someone skilled in video card driver development comes forward, and they can explain in detail what the HV is restricting, I'll send them the exploit."



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Nivdeb's Avatar
#4 - Nivdeb - 221w ago
So do you think geohot will give the exploit? (just wanna ask it to you)
Sure he will. He seems waiting for the good time and that it's advanced enough.

mekisi's Avatar
#3 - mekisi - 221w ago
The hacking can't start... without the exploit you can't doing nothing
So do you think geohot will give the exploit? (just wanna ask it to you)

Hemp's Avatar
#2 - Hemp - 221w ago
Actually if i were rich i would buy the games, but unfortunately i'm not

If the game developers would sell the games cheaper (lets say 20 euro) then i would also buy alot more games, but as long as they want me to pay 60-70 euro for a game, piracy is the only solution for me (no i dont wanna wait a year for platinum editions and i still buy games that are worth it like MGS4, Uncharted1+2, GTA4...)

xplozion's Avatar
#1 - xplozion - 221w ago
If people start coming up with convincing reasons why they need the exploit to go further, I'll release it. It's just a waste to release if people can't make use of it.
The hacking can't start... without the exploit you can't doing nothing













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