Help:Contents

IRC

Server ⇒ irc.oftc.net
Channel ⇒ #free60 ; #free60-chat ; #free60-dev
or if theres nobody replying try:

Server ⇒ irc.efnet.nl
Channel ⇒ #libxenon

Want to Help?

Here is what you can do to help this project:

• Documentation: We need the individual bits&pieces, for example from xboxhacker.net, nicely assembled into wiki pages, Howtos etc. This does not require coding skills!
• Take a look at wiibrew.org: They have nice categories for the available software, features applications etc.
• Tell more people about what you can do with Linux on the 360.
• We need more applications so people have a reason to try out free Libxenon based code and Linux on 360.
• Work to implement End User Requirements
• Test and improve the Linux live CD images
• Add useful ideas to this list.

Seeking Information On

Some documentation must already exist, though perhaps not in the wild. We are seeking:

• CPU instruction set reference --> See VisualStudio 2005 Reference (Exact CPU instruction set reference)
• Verification that the CPUs have a memory management unit (can do virtual memory)
• Details of Multi-processor memory coherency and synchronization requirements

Documentation To Develop

Some documentation will either not exist, or won't be made available

• Memory usage map for boot code
• Hypervisor details. What is checked and how it is checked
• Chain of trust: how execution integrity is designed to work
• Chinks in the armor: Holes in the chain of trust
• Hard drive locking (if any) and filesystem details (Harddrive)
• Wireless hardware and software protocol for controllers
• Xbox1 software emulation details

XeLL / Libxenon

• Libxenon: Improve Libxenon and write apps.
• Libxenon/XeLL: Fix the usb driver so it gets proper speed and Power supply does not need to get replugged to get usb mass storage recognized
• Libxenon/XeLL: Write a fatx/xtaf driver
• XeLL: Implement parsing of a bootconfig + passing bootarguments to the linux kernel

Xenon linux kernel

• Needs urgent fixing: Linux Kernel - a hardware CPU bug causes powerpc locking primitives to fail between hyper threads unless a special register is set properly
• Fix usb driver (random freez under heavy usage)
• Patch RTC driver for hardware clock access
• Xenosfb: add support for mode switching
• Audio driver
• If possible: Modify the ATI 3D driver to work with the Xenos-Chip

Linux Live CD / Installer

Ideally, what we need is a binary patch for KK, resulting in a single DVD-DL doing the following:

• Load KK shader exploit
• Start XeLL from the same disk (video partition?)
• Open a Boot Menu with the following options:
  • Load Linux Kernel from HDD (default, 10s timeout? auto detection of valid Linux HDD?)
  • Load Linux Kernel from CD and use root filesystem on HDD
  • Load Rescue/Installer Linux LiveCD
  • Load Linux over TFTP (optionally configuring the network)

The Menu can either be created in XeLL (requiring reading from CD, SATA, plus interactivity over serial / IR remote or USB controller), or possibly in a Linux initramfs (which is easier to implement, but locks the user in to one single kernel)

Such a disk would allow using one single DVD-DL for all tasks, from Linux installation to daily bootup and recovery. Packing everything on a single disk also allows booting Linux without disk swapping, serial console, etc., making it really convenient.

There is a problem with the implementation though, we can only access around 200MB of the KK disk (the video partition), or only the game data, depending on the mode of the drive.