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Gpu Access Denied To Linux?

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#1 openxdkman


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Posted 15 November 2006 - 09:20 AM

I'm puzzled...

A few schematics show that the PS3 "guest" OS runs on a virtualized machine (like the OS of xbox 360), meaning that there is low chance to gain direct access to hardware parts.

Is there really an interest in running Linux on a machine less interesting than a powerful PC (because GPU can't be programmed)?

If half the memory is reserved to GPU, that would make only 256Mb for Linux.

Well... I guess a bunch of emulators can run with software-only graphics rendering... But no need for deluxe PS3 for that...

Either this situation can change or Sony will have really missed a major opportunity to avoid security hacking pressure.

Please report any journalist interviewing Sony officials on this subject... It's darn interesting to know what they think about guest OS restrictions.

Current documentation is clear. Access is "currently" denied.

Edited by openxdkman, 15 November 2006 - 09:25 AM.

#2 VinnySem


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Posted 15 November 2006 - 01:23 PM

If only half the memory is available, then only 128MB is available, the PS3 has 256MB system memory, 256MB graphics memory.

I have a lot of interest running linux on this bad boy, as an HTPC type unit.

#3 Pheidias


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Posted 15 November 2006 - 04:03 PM

256MB will be available only the gpus 256MB will be unavailable, and isn't needed for htpc use. you are probably gonna see some other restrictions too though like not being able to play BD.

Edited by Pheidias, 15 November 2006 - 04:04 PM.

#4 garyopa


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Posted 17 November 2006 - 01:47 AM

Sony also installed a small chip like the "Hypervisor" in the x360, and it watchs all the ATAPI command
packets send from your Linux app to the Marvell controller handling the SATA databus for the hard drive
and the Blue-Ray, and any "debug" or "security-hacking" type commands will be blocked and NOT transfer
to the drive. This is to stop software versions of programs to directly grab game or movie data from the
laser and transfer it into memory and to stop any "firmware" flashing of the devices connected to the SATA
bus controlled by the Marvell chipset.

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