kexec support for Linux/m68k (tools part) This is a set of patches to add kexec support for m68k to kexec-tools. - Kexec only, no kdump support yet (do you have enough RAM to keep a crashdump kernel in memory at all times? ;-) Patches: - [PATCH 1/3] kexec: Let slurp_file_len() return the number of bytes - v2: no changes - [PATCH 2/3] kexec: Extract slurp_fd() - v2: new patch - [PATCH 3/3] kexec: Add m68k support - v2: - Fix handling of virtual and physical addresses, for machines where memory doesn't start at zero, - Print a warning if the kernel size exceeds 4 MiB, as current kernels cannot handle that, - Check struct bootversion at the start of the kernel, and print a warning if it cannot be found or doesn't match, - Replace literal 4096 by PAGE_SIZE, - Handle removal of page zero at the ELF program segment level, as m68kboot does, - Remove -PAGE_SIZE for the ramdisk location now the bug in locate_hole() is fixed, - Use endian-correct types for bootinfo, - Remove unused -? option handling, cfr. commit bf9d0f055c791a26b2237b5a12b48ae1b7e0d550 ("kexec: Remove unused -? option handling"), - Use <asm/bootinfo.h> instead of our own definitions. Notes: - Based on git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git - Tagged bootinfo is read from /proc/bootinfo by default, but this can be overridden using --bootinfo. No bootinfo editor is provided. The kexec command will replace/delete command line and ramdisk tags in the bootinfo. Have fun! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds