So I think it a good idea for Linux gamers and gamers in general to try to be patient while Valve does its work. The worst thing that could happen is for Valve to prematurely release SteamOS or the Steam Machines before they are ready for prime time. A buggy, slow version of SteamOS would cause many gamers to think twice about using it. And a badly designed controller or other hardware screw up would also damage the entire SteamOS platform.
The PowerPC architecture updates for the Linux 3.20 kernel, including some improvements for the Sony PlayStation 3 game console.
While Sony long ago removed the "Other OS" functionality from the PlayStation 3, it seems some open-source developers are still working on the PS3 support for Linux.
Geoff Levand landed a few PS3 kernel patches for mainline Linux kernel integration via the 3.20 POWER pull request.
In terms of what these new PS3 patches allow, Geoff explained recently, "It will allow a kexec based bootloader (petitboot for example) to pre-allocate a highmem region and store things like an initrd or other large data needed to boot an OS. With some PS3 configurations the boot memory region is not large enough to fit all the boot data."