Sponsored Links

Sponsored Links

Patent Reveals Sony to Increase PS3 Power via External Processor


Sponsored Links
188w ago - As a follow-up to his recent PS3 SELF Decrypter PSGroove Payload and PS3 3.50 Firmware Decryption work, today PlayStation 3 developer graf_chokolo has released a PS3 LV2 Kernel Decrypter payload for PSGroove.

Download: PS3 LV2 Kernel Decrypter PSGroove Payload / [Register or Login to view links]

To quote from his comment on xorloser's blog, linked above:

graf_chokolo says:

I just release my lv2 kernel decrypter You need metldr, lv2ldr, RL_FOR_PROGRAM.img and lv2_kernel.self. You have first to dump your metldr from FLASH memory. lv2ldr you will find also in your FLASH memory or in decrypted CORE_OS_PACKAGE.pkg from PUP files.

RL_FOR_PROGRAM.img is a revoke list for programs and can be also found in PUP files. lv2_kernel.self is on your FLASH memory or in decrypted CORE_OS_PACKAGE.pkg.

First i send all files to PS3 and store them in memory. After that i load metldr in isolation mode and pass it the addr e ss of lv2ldr. The code is very low level and many things are done by directly manipulating SPU registers

If you have any questions or problems then feel free to contact me or ask here. I will try to help you. I will try to document my findings on my homepage

I also uploaded a code which can communicate with USB Dongle AUthenticator by using Dispatcher Manager without using any GameOS functions It’s exactly what GameOS does, just low level

Have fun guys

lv2_kernel.self from 1.10 firmware decrypted

[Register or Login to view links]

Guys, just to make sure that you know LV2 decrypter is also PS2 emu decrypter, just change LPAR auth id in code PS2 emu is like GameOS, it’s LV2 and is decrypted by lv2ldr

Just decrypted vsh.self from 1.10 firmware Just like old good days

I decrypted software_update_plugin.sprx but didn’t have time to reverse it yet

metldr

Loading metldr

  • Physical/Virtual memory address of an isolation module that should be loaded by metldr is written into SPU register SPU_In_Mbox. The SPU register SPU_In_Mbox is 32bit, so 64bit memory address is written in 2 steps.
  • MFC relocation is turned off by clearing R-bit in SPU register MFC_SR1. By doing this, HV enables real address mode for MFC of SPU.
  • On GameOS, it also works with relocation on. You just have to initialize SLB of SPU and insert valid SLB entries.
  • Physical/Virtual memory address of metldr is written to SPU registers Sig_Notify1 and Sig_Notify2
  • Isolation load request is enabled by writing SPU register SPU_PrivCntl
  • Isolation load request is made by writing value 0x3 into SPU register SPU_RunCntl

Methods

SPE_load_request_metldr - 0x002B00A4 (3.15)

lv2ldr

  • lv2ldr is used to decrypt lv2_kernel.self
  • syscalls 0x10042 and 0x1004A use lv2ldr
  • syscall 0x10042 is used by HV Process 3 during LV2 LPAR construction
  • syscall 0x1004A uses different parameters as syscall 0x10042

Methods

SPE_load_request_lv2ldr_1 - 0x002AE82C (3.15)

SPE_load_request_lv2ldr_2 - 0x002AE8D8 (3.15)

Loading lv2ldr

  • 64 bit memory address of lv2ldr is written into 32 bit SPU register SPU_In_Mbox
  • metldr is loaded

Decrypting SELFs with appldr and lv1_undocumented_function_99

  • lv1_undocumented_function_99 loads and prepares appldr for SELF decryption.
  • When appldr is ready to decrypt data, it sends a message via mailbox.
  • The address and the size of the encrypted data is passed to appldr via a shared memory.







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 39 Comments - Go to Forum Thread »

• Please Register at PS3News.com or Login to make comments on Site News articles. Thanks!

KrzyInuYasha's Avatar
#4 - KrzyInuYasha - 188w ago
Interesting concept though I wonder how it will connect to the system. Will it be a specialized port added to a new revision of PS3s. Or will it be backwards compatible to the current line using either USB or LAN connection. Both could work but I wonder how badly the USB bandwidth would limit it While the Ethernet would be faster it could add extra cost.

PS3 News's Avatar
#3 - PS3 News - 188w ago
Thanks for the news fattysc, moved it to the main page now and +Rep!

moja's Avatar
#2 - moja - 188w ago
I read the patent on this thing... It is worded to be usable for several computer-based applications, but then describes 'hypothetical' uses for sharing bandwidth between graphics and external memory subsystems. I cannot decide how to speculate on this, but given the increasing R&D cost of developing new systems, I can understand creating an incremental upgrade of sorts (to at least extend the console life). I think boosting the system memory and graphics hardware would be a sound investment.

I wonder if it could be used to leverage the rumored PS2 compatibility hardware add-on.

fattysc's Avatar
#1 - fattysc - 188w ago
According to a recent SCEI [Register or Login to view links], Sony plans to increase the PS3's power with an external processor.

To quote from PlayStationLifeStyle.net (linked above): "A Sony patent has hinted that they will release external processors to make the console even more powerful – without the need for a PS4.

The benefits of an upgrade to the PS3 are obvious – allowing for a more powerful machine, without having to pay so much for a new console. However, the “PS3 External Processor” has its drawbacks: it wouldn’t give consumers the same experience as a full new console, and would run the risk of both fragmenting and confusing the market.

The patent expressly states that several external processors may be used:

In accordance with an alternative embodiment, two processor elements may be cascaded by each employing its respective BIC in a coherent symmetric multiprocessor (SMP) interface (or BIF) configuration. The coherent SMP interface (BIF) of each processing element is coupled to one another to set up a coherent interface there between."

More PlayStation 3 News...

Sponsored Links

Sponsored Links
Sponsored Links

Sponsored Links







Affiliates - Contact Us - PS3 Downloads - Privacy Statement - Site Rules - Top - © 2014 PlayStation 3 News