Search found 24 matches

by lotharx
Sun Feb 21, 2010 9:41 am
Forum: PS3 Development
Topic: geohot on the PS3 ...
Replies: 40
Views: 33947

Geohot, and other people all literally said the GPU has been unlocked the entire time in all firmwares, it just needed a driver. This is for the guy why tried to patronize my post. If you don't like it go bite at their ankles, not mine. Also dumps and dump tools have been published, and a SPU can be...
by lotharx
Sat Feb 06, 2010 3:29 pm
Forum: PS3 Development
Topic: geohot on the PS3 ...
Replies: 40
Views: 33947

Now that we can dump the hypervisor and reverse engineer it, does that mean we can search the undocumented HV calls for the (rumored to exist) GPU setup calls we need for full GPU access? Yep. Failing actually finding one undocumented just sitting there (which would be ideal as once learned, anyone...
by lotharx
Wed Jan 27, 2010 2:56 pm
Forum: PS3 Development
Topic: geohot on the PS3 ...
Replies: 40
Views: 33947

How can you claim that the Slim is vulnerable to this when it doesn't have OtherOS? Cause it has an identical interface on the RAM bus. Glitching RAM also dates back to the 80s so it's not a cutting edge reversing technique. It's been used a lot in paytv systems to get dumps when there was encrypti...
by lotharx
Wed Jan 27, 2010 11:26 am
Forum: PS3 Development
Topic: geohot on the PS3 ...
Replies: 40
Views: 33947

He did it by flooding htab then sending a call after a simple hardware glitch, he published everything. He made a peek and poke for real addresses too including the supervisor LPAR. Devs here I know can't use it because it isn't what Sony gave them(no "clean room"). It doesn't violate DMCA...
by lotharx
Tue Sep 01, 2009 2:40 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

Re: Sony explains PS3 Slim's loss of Linux option

Coding drivers too expensive? http://www.theregister.co.uk/2009/08/28/sony_ps3_slim_linux_install_loss/ Considering that most Sony engineers are on salary and probably spend most of their time playing minesweeper, the "cost" of drivers is just another excuse. Particularly when you realize...
by lotharx
Fri Aug 28, 2009 4:31 am
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

The PS3 design is so refined that anything outside the otherOS address space is pretty much attack vectors for piracy. Finding anything for 'homebrew' outside otherOS environment and publishing it will be a certain prelude to piracy because of the way the PS3 is designed. Most of the regulars here h...
by lotharx
Mon Aug 24, 2009 8:43 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

Has anyone extracted some signature check key yet, used to check game elfs? I think they frown upon most reversing talk here. The unencrypted ELF files that I've seen didn't do any check though, they merely handled meta data. Some of the .SELF files have code in them too, but the data sections are ...
by lotharx
Sun Aug 23, 2009 12:21 am
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

From what I've seen gameos is loaded from the 1st stage boot loader in the CBE from the SLC NAND doing my before mentioned signing method thus not needing loader change, and simply uses a LPAR and a SPE. All that being said though I think it's a weak excuse. The code that allows those calls is most ...
by lotharx
Sat Aug 22, 2009 5:41 am
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

On the cbe-oss-dev mailing list, Geoff from Sony says: The feature of "Install Other OS" was removed from the new "Slim" PS3 model to focus on delivering games and other entertainment content. Please be assured that SCE is committed to continue the support for previously sold mo...
by lotharx
Sat Aug 22, 2009 2:13 am
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

I actually seriously doubt firmware can change the 1st stage loader. If you research the obscured PCB traces on any revision you'll find the CBE is the first initialized chip in the entire system meaning it contains the 1st stage loader. There is no way to tell whether the 7th SPE has it hard flashe...
by lotharx
Fri Aug 21, 2009 5:40 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

No offense, but I think comments at the PS Blogs are a lot more likely to get noticed by Sony than complaints posted here or personal blogs. Well, both is even much better (my post is #666 on the US blog, sooo evil) I would suggest going to 4chan /b/ and getting a flash mob to comment on them but k...
by lotharx
Thu Aug 20, 2009 7:12 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

All the mags, yuppies, and marketing pukes are already getting them: http://www.youtube.com/watch?v=KrOS_0Ulv7M&feature=related I'll still get one probably later on. Depending on how things go. head crab fiasco...and the great chipmunk fires of 1981 EDIT: HDD extraction at the end http://www.you...
by lotharx
Thu Aug 20, 2009 1:55 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

Off course the obvious route would be buying a non-slim PS3 then, but the question is, would a firmware update to that older machine kill off OtherOS functionality... Just my thoughts, but I doubt it. Although new models no longer do SACD or play ps2 games, but successive firmware updates have not ...
by lotharx
Thu Aug 20, 2009 11:30 am
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

Really stupid decision by Sony... Off course the obvious route would be buying a non-slim PS3 then, but the question is, would a firmware update to that older machine kill off OtherOS functionality... How do you guys here think.. I still haven't bought a PS3 yet, so it's hard for me to decide what ...
by lotharx
Thu Aug 20, 2009 1:07 am
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

When I finally accepted there really is 240MiB RAM available to "Other OS" using PS3 Linux (took some convincing, thanks btw), then a smiling Kaz along with the other fools at $ony decide to remove it. I sure hope they will continue to support "Other OS" on the "old hardwar...
by lotharx
Wed Aug 19, 2009 4:44 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

So, does anyone feel like rehashing the old bust-the-hypervisor-to-load-homebrew-code discussion? I'm not saying rush out and do it, I'm just observing that many arguments against it have just been made obsolete. :) I agree, I think this is the most likely side effect of their decision. In practice...
by lotharx
Wed Aug 19, 2009 1:28 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

The majority of arguments I heard for not exploiting the PS3 was that we had OTHEROS. If Sony takes that away, they are only encouraging hacker to finally start digging into PS3 exploits. It's rather counter-productive if you ask me. My brother had a point though - he thinks the only reason Sony is...
by lotharx
Wed Aug 19, 2009 12:52 pm
Forum: PS3 Development
Topic: Slim PS3 = No More Otheros
Replies: 82
Views: 57567

The CECH2000 will have a new low power CBE and a reformed PCB. It's identical in bus to the recent 80gb; the WLAN is just compressed. It's also the only one in production, but Sony wants everyone to buy the older models off the shelf so they don't lose millions. If otheros gets cut I know some 'hack...
by lotharx
Wed Aug 12, 2009 7:24 pm
Forum: PS3 Development
Topic: The hunt for HV's FIFO/Push buffer...
Replies: 463
Views: 649513

What relation would this have to the updated PS3VRAM code they're using in the YDL 6.2 release? Do they use any of the operational functions? Also the few people I've seen that actually have done rational research on the security of the PS3 have all suggested this: CBE has the bootloader which does ...
by lotharx
Sun Jul 20, 2008 7:21 am
Forum: PS3 Development
Topic: otheros/file.bin?
Replies: 9
Views: 7771

Um. I'm not sure what you're trying to say here. Hypervisor is an execution state in the PPU, above both the "problem state" and "supervisor state". It is controlled by the HV (for HyperVisor) bit in the MSR. (See PowerPC architecture manuals) It has nothing in particular to do ...
by lotharx
Sat Jul 19, 2008 4:34 pm
Forum: PS3 Development
Topic: otheros/file.bin?
Replies: 9
Views: 7771

There isn't even a "BIOS". There is only the Hypervisor, but the services it provides are somewhat different from those of a PC BIOS. It can setup the screen video mode for you, it can map the hardware frame buffer into your address space, and it can copy blocks of data from CPU memory to...
by lotharx
Fri Jul 18, 2008 4:22 pm
Forum: General Discussion
Topic: Suggestion: Noob free zone for devs / testers
Replies: 12
Views: 17361

I'm a noob, and I support this idea. Instead of using the forum group policy system to post protect it from non-group members, you should just totally isolate it from the public like the other posts suggest. ^^
by lotharx
Thu Jul 17, 2008 5:04 am
Forum: PS3 Development
Topic: otheros/file.bin?
Replies: 9
Views: 7771

There is no "BIOS font". A PS3 is not a PC. ohh..usually systems have a font for the BIOS, or at least I thought they did. Are you allowed to share the makefile for your last otheros demo? EDIT: Never mind I eventually figured it out. If anyone wants a script to compile it, and a hello wo...
by lotharx
Wed Jul 16, 2008 4:20 pm
Forum: PS3 Development
Topic: otheros/file.bin?
Replies: 9
Views: 7771

otheros/file.bin?

Hey can anyone make a bare loader in C++? I looked at the otheros.bld/demo.bin demos and they where riddled with bit mapping code. I was thinking maybe something that used the BIOS font to output a simple text string. It'd probably help a lot of people who don't want to tear apart kboot when someone...