This patchset adds the support for zlib compressed kernel images (Image.gz) for arm64 kexec-tools. This was discussed a bit with the arm64 kernel maintainers (see [0]) and after discussing the pros and cons of adding this support in kernel-space v/s in user-space, we decided it makes more sense to add this support to the user-space kexec-tools. Note that this series adds support for unsigned arm64 Image.gz files only as signing an Image.gz type file is not a easy implementation from kexec-tools p-o-v. Also even standard signing tools like sbsign fail to recongize the Image.gz format: $ sbsign --key certs/signing_key.pem --cert certs/signing_key.pem Image.gz Invalid DOS header magic ... because that gzip file isn't a PE32+ that can be loaded by UEFI. So I will work on the same in coming days and try to send a RFC patchset for the same later on. [0]. http://lists.infradead.org/pipermail/kexec/2019-June/023156.html Bhupesh Sharma (4): kexec/kexec.c: Add the missing close() for fd used for kexec_file_load() kexec-uImage-arm64.c: Fix return value of uImage_arm64_probe() kexec/kexec-zlib.h: Add 'is_zlib_file()' helper function kexec/arm64: Add support for handling zlib compressed (Image.gz) image kexec/arch/arm64/Makefile | 3 +- kexec/arch/arm64/kexec-arm64.c | 1 + kexec/arch/arm64/kexec-arm64.h | 7 ++ kexec/arch/arm64/kexec-image-arm64.c | 4 +- kexec/arch/arm64/kexec-uImage-arm64.c | 13 ++- kexec/arch/arm64/kexec-zImage-arm64.c | 199 ++++++++++++++++++++++++++++++++++ kexec/kexec-zlib.h | 1 + kexec/kexec.c | 14 +++ kexec/zlib.c | 32 ++++++ 9 files changed, 270 insertions(+), 4 deletions(-) create mode 100644 kexec/arch/arm64/kexec-zImage-arm64.c -- 2.7.4 _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
