Modify arm64/Kconfig and Makefile to enable kexec_file_load support. File-format specific hook functions to load a kernel image will follow this patch. Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org> Cc: Catalin Marinas <catalin.marinas at arm.com> Cc: Will Deacon <will.deacon at arm.com> --- arch/arm64/Kconfig | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index a93339f5178f..865d110809f9 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -794,6 +794,19 @@ config KEXEC but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux. +config KEXEC_FILE + bool "kexec file based system call" + select KEXEC_CORE + select BUILD_BIN2C + ---help--- + This is new version of kexec system call. This system call is + file based and takes file descriptors as system call argument + for kernel and initramfs as opposed to list of segments as + accepted by previous system call. + + In addition to this option, you need to enable a specific type + of image support. + config CRASH_DUMP bool "Build kdump crash kernel" help -- 2.14.1
