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GeoHot Releases Sample PS3 Linux Isolated SPU Loader Code

1000°
238w 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. [Register or Login to view links] 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...
 
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