It all started when I wanted to analyze some MeP code. Usually, I do all my disassembly in IDA Pro, but this is one of the few processors that isn’t supported by IDA. Luckily, there is objdump for this obscure architecture. After fumbling around for a bit, I was convinced that porting the disassembler to IDA would be a much better use of my time than manually drawing arrows and annotating the objdump output.
Rejuvenate for Unity (and VitaTV support)
Thanks to work done almost entirely by Netrix (and also thanks to SMOKE for testing and modifications to the setup script), Rejuvenate is now supported on both PSM Unity and PSM Unity for VitaTV.
On the future of Rejuvenate
Since, the announcement ten days ago, Rejuvenate received tons of positive reception and thousands of downloads. Progress on both SDK projects is moving at fast speeds. There are already Vita homebrew projects in the works. No doubt, there are more to come. However, Sony’s response has not been positive. Yesterday, Sony released firmware 3.52 which revokes access to PSM DevAssistant and PSM Unity DevAssistant along with a friendly request for PSM developers to delete the DevAssistant from their devices. This means that if you ever want to run homebrew on your Vita, regardless of your opinions on the current limitations and regardless of your ability to use PSM, do NOT update to 3.52.
Hacking the PS Vita
The following was taken from a series of unpublished posts I wrote back in September 2012 (almost three years ago). The posts not only detail the exploit I found but also the thought process that led me to it. I intended to publish it as soon as the exploit was patched by Sony or after someone found another exploit on the system by examining the memory dumps. However, as of today, the PSM privilege escalation is still the only known way to execute native ARM code on the PS Vita. Apologizes for the outdated references.
Rejuvenate Public Beta Release
Rejuvenate, announced last week allows users to install unofficial applications and games (homebrew) onto their PS Vita device. Please read that announcement post for more information. Today, the public beta is ready for testing.