Kammy Userland PS3 LV2 GameOS Patches for PSGroove Arrive

[naughtydog]

AerialX has Tweeted that the beginnings of a PS3 LV2 Userland (GameOS) patch framework dubbed Kammy are now available for PSGroove on Github.

Kammy is a system for loading patches to lv2 (PlayStation 3's Game OS) from a user application, using PSGroove or any other implementation of the exploit that adds the peek/poke syscalls. Kammy was inspired by Treeki's Nintendo Wii game patching system, Kamek.

Building

Building Kammy requires three different gcc compiler toolchains.

• gcc: A normal host gcc is required to build the raw2h application.
• ppu-lv2-gcc: Used to compile the loader, only available from Sony.
• ppu-gcc, ppu-binutils: A version of gcc that will compile 64bit PowerPC instructions is required to build the patches. Linux packages can be found on BSC.es. (note: ppu-lv2-gcc may suffice for this, untested)
• xxd: Creating patch bin files requires the xxd tool to be installed.

With these dependencies installed, you can build Kammy by simply cd'ing to the loader directory and running:

make clean
make

Usage

Kammy must be used with a payload that supports poke/peek. This includes PSGroove and most of its forks - including my own - among others. To apply a Kammy patch, a loader application must be started on the PS3. This is usually done from XMB from an installed package, or from USB using my PSGroove fork's apploader payload.

Customizing

Kammy is made up of two main components:

• lv2: This folder contains the lv2 patches to be built. See the main kammy patch for an example. It is up to the patch to apply any hooks needed to lv2.
• libkammy: This is the basic library that handles the loading of Kammy patches.

The loader/ folder contains an example of using libkammy to load a patch from the lv2 folder.

Notes

Internally, Kammy obliderates syscalls 8 and 9, so try not to run it with payloads that provide those syscalls (like my debug payload).

News Source PS3NEWS

For AerialX's PSGroove Kammy source visit Github: http://github.com/AerialX/Kammy

[KiasuKiasiMan]

Not quite sure what it means but basically its to apply patches to the GameOS right? Not the games?

[Jammol]

God damn can someone dumb that down to my level please? Which is pretty low!

[Razor1993]

CAN SOMEON EeXPLAIN IT EXACTLIß
WHAT does it exactli do if i Install it on my PS3? what can i doo with it?

[stevepb]

Coool............hmmmmmm.....

[darkmater_101]

I think I know what this does, this is pure speculation, but seems likly.

It appears to load patches (changes) to the GameOS (XMB)
You need to have the desired patches in a folder and get an application to call this program to apply them.

As for what patches that's up to developers, they need to be made.
This could be used (is intended to be???) as a sort of plugin system like cfw on a psp

[moh.sakhaii]

Basically what he calls kammy is a loader for loading binary patches to lv2(gameOS) and these binary patches can only be made currently with Sony's own SDK.
It's just a new name for lv2 patching, which can already be done, but more systematically.

[smx]

I don't really get it, the only thing I know treeki did for the wii is creat a lvl editor for New Super Mario. I don't recall him doing anything regarding patching Game OS!

edit: I think treeki also figured a way to apply those edits as updates on the wii!

[Ceph]

If i understand it right it is used to apply patches to the gameos, the only thing i can think of it being used for on the gameos would be region free or backup loading, possibly patching the games themself as they run on the game OS.

[DeadlyFoez]

I think the parrallel with this app and what Treeki wrote was Riivolution which allows you to download levels for NSMBW and put them on your sd card and then launch Riivolution and it will patch the levels into the game on the fly.

I really wish that people would stop begging for CFW or people thinking that everything that comes out is going to be one step closer to CFW. People need to just wait. CFW will come in due time.

Although there is no use for this app at this very moment, it will be very useful soon.