I have uploaded part 2 of the the RISC OS port to my website: http://www.majoroak.f2s.com/tim/grub/patches/grub2-patch6.diff.gz
Like before the remaining changes to my tree are at: http://www.majoroak.f2s.com/tim/grub/patches/grub2-patch6-remainder.diff.gz To avoid confusion I have created a (temporary) webpage for the RISC OS Port: http://www.majoroak.f2s.com/tim/grub/RISC_OS.html This part consists of a general purpose address space abstraction which allows: - Allocating and freeing memory from the target address space. - Allocating and freeing memory in GRUB's address space to store data intended for the corresponding area in the target address space. - Booting a system into the address space. The implemention for physical address space on RISC OS uses are: - memory/defragment.c, a generic page move list calculator. - memory/arm/mmu_off.S, MMU disabling code for ARM, uses the instruction cache to prevent reads from the physical address corresponding to it's virtual address. - memory/arm/relocate.S, an ARM page move routine. This code could also be used to: - Boot from Windows CE (aka PocketPC) and EPOC32. - Boot from Linux using the kexec system call. - Boot remote systems using the GDB protocol, often used on development boards. - Removing the requirement for the booted OS to be located in grub_os_area on i386. There are a couple of issues with this code: How should I print a grub_addr_t, so that it aligns up in columns? Their is no support for OS boot functions to return errors. I propose that the responsibility for calling grub_machine_fini be move to OS boot functions, which will return a grub_err_t in case of an error. -- Member AFFS, WYLUG, SWP (UK), UAF, RESPECT, StWC No to software patents! Victory to the iraqi resistance!
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