On 02/22/2013 12:07 PM, Yinghai Lu wrote: > Now we have limit kdump reserved under 896M, because kexec has the limitation. > and also bzImage need to stay under 4g. I think the kernel patches has been merged in linus tree, I got a crash memory address above 4G during my test, kexec tools need this patchset to load the 2nd kernel.. BTW, Simon, do you have plan to release the 2.0.4? > > kernel parts changes get merged to linus tree already. > > here patches are for kexec tools to load bzImage and ramdisk above 4G > acccording to new added boot header fields. > > it will only load high with 64bit kernel with 2.12 setup header. > > -v3: address review from Eric to use locate_hole at first. > use xloadflags instead. > -v4: remove the restriction about bzImage not crossing GB boundary. > add real-mode fix for bzImage. > add --entry-32bit and --real-mode for skip bzImage64. > -v5: use USE_EXT_BOOT_PARAMS bit in xloadflags. > -v6: use sentinel instead of USE_EXT_BOOT_PARAMS. > add crashkernel_low support > -v7: Separate bootloader id setting in another patch > -v8: update for CAN_BE_LOADED_ABOVE_4G is changed to bit1. > also make it appliable to current kexec-tools devel tree. > -v9: only copy setup_header when it is not with real_mode_entry. > > Yinghai Lu (7): > kexec, x86: set booloader id in setup_header > kexec, x86: add boot header member for version 2.12 > kexec, x86: clean boot_params area for entry-32bit path > kexec, x86: Fix bzImage real-mode booting > kexec, x86: put ramdisk/cmd_line above 4G for 64bit bzImage > kexec, x86_64: Load bzImage64 above 4G > kexec, x86: handle Crash low kernel range > > include/x86/x86-linux.h | 27 ++- > kexec/arch/i386/crashdump-x86.c | 21 +++ > kexec/arch/i386/include/arch/options.h | 4 +- > kexec/arch/i386/kexec-bzImage.c | 76 ++++++-- > kexec/arch/i386/x86-linux-setup.c | 38 ++-- > kexec/arch/i386/x86-linux-setup.h | 15 +- > kexec/arch/x86_64/Makefile | 1 + > kexec/arch/x86_64/kexec-bzImage64.c | 304 ++++++++++++++++++++++++++++++++ > kexec/arch/x86_64/kexec-x86_64.c | 1 + > kexec/arch/x86_64/kexec-x86_64.h | 5 + > 10 files changed, 460 insertions(+), 32 deletions(-) > create mode 100644 kexec/arch/x86_64/kexec-bzImage64.c > -- Thanks Dave
