Para-virtualization of Android on ARM PB11MPCORE Varun Ganesh Prasanna kumar CSC 714

Goals of the project San-boxed environments like Dalvik do not provide complete security Virtualization can enhance security and other obvious advantages like multiple subscriptions ARM v6 instruction set – Not all sensitive instructions are privileged ARM – 11 series does not have H/W support like Vtd -- full virtualization is not possible Hence Para-virtualize the Android stack with L4 as the hypervisor The goal was to extend the existing work done in this area and boot L4Android over NFS, achieve a stable prompt and solve graphics related issues

Accomplishments Compiled L4 re,Fiasco kernel,L4Linux and L4Android for ARMv6 (PB11 MPCORE) - got a bootable image Configured the baud rate on the boot monitor as well as in fiasco to fix exiting baud rate issues Partitioned and used the SD card to boot L4Linux with a ramdisk image as rootFS. Achieved a stable prompt Configure boot loader and a tftp server to download the kernel image over tftp and boot the board Identified the vbus configuration to create a virtual bus so that L4Linux can detect the NIC card. Configured a static IP and gateway and the kernel sends a MNT request to mount the rootFS over NFS Repeated the same for L4Android and reached the same state Built the Android rootFS that can be mounted by the kernel

Current position and future work Init.rc fails with errors which need to fixed to achieve a stable prompt Instead of assigning a static IP. L4Android should be configured to send a DHCP request to obtain IP address, default gateway and other details. DHCP server should be configured to achieve the same Once the init issues are solved, the graphics related issues should be identified and resolved. We suspect it could some modules in L4re such as mag and fbdrv that need to looked at.