26.01.2010, 19:11
Hi,
wer seinen Blog nicht verfolgt hier ein neuer blogpost:
Also er spielt gerade mit den "isolated SPU's" und dem Grafikprozessor es ist gut möglich das man vollen GPU zugriff via Otheros hat aber es gibt eben keine Treiber würde die einer schreiben ( und das ist verdammt hart wenn man mal zum normalen PC rüberschaut wo die besten treiber Closed Source sind und vom Hersteller direkt programmiert wurden)
Derjeneige der einen GPU treiber für otheros schreibt bekommt den exploit sagt er außerdem!
wer seinen Blog nicht verfolgt hier ein neuer blogpost:
Zitat:A Level Playing Field
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.
And something has to be done about the comments. Theres a couple of good ones, mixed in with tons of trash. Please, if you don't have something technical and useful to say, don't say it. This is not the place for congratulations(go back to the hello hypervisor post), debates about piracy(go somewhere else, the internet is big), or trying to convince me to do X.
Also er spielt gerade mit den "isolated SPU's" und dem Grafikprozessor es ist gut möglich das man vollen GPU zugriff via Otheros hat aber es gibt eben keine Treiber würde die einer schreiben ( und das ist verdammt hart wenn man mal zum normalen PC rüberschaut wo die besten treiber Closed Source sind und vom Hersteller direkt programmiert wurden)
Derjeneige der einen GPU treiber für otheros schreibt bekommt den exploit sagt er außerdem!