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PS3 Hypervisor and Bootloader Dumped from RAM and More!

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245w ago - We are happy to report that the PS3 Hypervisor LV1 and Bootloader LV0 are dumped from the PlayStation 3's RAM after getting our SX28 Hardware a few days ago, utilizing code for glitching and mashing buttons for hours - the exploit eventually will get triggered!

We tried a few different ways to dump out the real memory - the biggest "problem" was the fact that you can't just simply use File I/O code in a kernel module. Furthermore, you can't call the lv1_peek function from user mode either.

Luckily, resident DEV kakarotoks was up to the challenge. After some trial and error (and too many PS3 crashes!) he made a kernel module which maps the "real" PS3 memory to a device in /proc. The /proc area lets the kernel and userland interact some.

Basically, the device /proc/ps3_hv_mem is created when the kernel module is inserted. Once it is inserted, you can use dd to read the device. By doing this, the device gets passed arguments, which is passed along to lv1_peek - which in turns reads out the real memory.

Be advised, don't go beyond the PS3's upper memory limit. At around 260MB, the PS3 tends to crash - it does not like trying to read beyond RAM limits! So, for usage:

First, run the exploit, and get it triggered and working - that's the hard part!

Next, download the attached file, inside are three files, a Makefile, the ps3_hv_mem.c and a pre-compiled version. Stick these in a folder, and run make. It will then compile a kernel module for you (ps3_hv_mem.ko, or use the pre-compiled one). Then simply type: sudo insmod ps3_hv_mem.ko

Enter your password and check /proc for a ps3_hv_mem entry, or your dmesg. If it is there - let the dumping begin!

You can dump out the PS3 Hypervisor and Bootloader (and the rest of the real memory) via dd. You can use the command:

dd if=/proc/ps3_hv_mem of=PS3_Memory_Dump.bin bs=1024 count=10K

That command will dump out 10485760 bytes, or about 10MB - which nicely includes the goodies like LV0 and LV1. Finally, you can also increase the count, which will increase the amount dumped (multiply by blocksize).

Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!

Comments 129 Comments - Go to Forum Thread »

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ionbladez's Avatar
#109 - ionbladez - 245w ago
Quote Originally Posted by Neo Cyrus View Post
Even those who like to buy the actual games download the games to try them before buying, like a demo. But unfortunately that's not possible with the PS3... yet!

There are Demos out on PSN. That's no excuse here, the demos they already offer are feature-rich and would indeed be good enough to "try before you buy".

imo, I hope they don't release a backup laucher. ISO, sure, but backup DVD launcher = no.

ramensama's Avatar
#108 - ramensama - 245w ago
Quote Originally Posted by jabberosx View Post

Oh you poor pirate you...!! tsk tsk.. shame on you. First thing you can think of is Pirating. I'm looking forward to the SNES emulator.. Great Stuff!!

Last time i checked playing SNES games via an emulator is also pirating.

sapperlott's Avatar
#107 - sapperlott - 245w ago
Nice one. Next thing of interest would be a memory map of the HV area. Keep it up

Neo Cyrus's Avatar
#106 - Neo Cyrus - 245w ago
Quote Originally Posted by thinnpikkins View Post
Not really, The #1 reason people want a game is to play online. scea knows this. I'm pretty sure they will implement disc ID's once again. the technology has been there since PS2, look at the Socom series, no matter what you did, you could not get online with a backup copy of it, even if you injected an ID into the file. so i think a lot of people will be disappointed. But then again thats just a opinion also...

I somehow doubt that's the #1 reason. I don't even remember the last time I played a game online. I couldn't care less if I could never go online again with my PS3 once I finally get a chance to mod it.

Warrorar's Avatar
#105 - Warrorar - 245w ago
i'm pretty sure that piracy won't effect the ps3 scene. sony will implent an account activation. that games have to be injected into the online acount and thats it, trought a disc key, injected into the online account and you have no problems.

you can play your games through hdd, and piracy will be only available for older games.

okay its a dream off me, but i will hope, i like backup launcher for saving the disc from beeing dmged, but i hate piracy. sony dont desreve to get kicked by piracy.

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