On Sat, Nov 17, 2012 at 12:41 PM, H. Peter Anvin <hpa at zytor.com> wrote: > Sorry, with "real mode" are we talking about struct boot_params or the actual realmode trampoline? The latter needs to be < 640K as a hw requirement. boot_params. when kexec bzImage64, kexec will copy that from bzImage file, and update it....and pass pointer to arch/x86/boot/compressed/head_64.c via %rsi
