Modify arm64/Kconfig and Makefile to enable kexec_file_load support. 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 | 22 ++++++++++++++++++++++ arch/arm64/kernel/Makefile | 2 +- 2 files changed, 23 insertions(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index dfd908630631..cf10bc720d9e 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -756,6 +756,28 @@ 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. + +config KEXEC_VERIFY_SIG + bool "Verify kernel signature during kexec_file_load() syscall" + depends on KEXEC_FILE + select SYSTEM_DATA_VERIFICATION + ---help--- + This option makes kernel signature verification mandatory for + the kexec_file_load() syscall. + + In addition to that option, you need to enable signature + verification for the corresponding kernel image type being + loaded in order for this to work. + config CRASH_DUMP bool "Build kdump crash kernel" help diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index 16e9f56b536a..5df003d6157c 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -48,7 +48,7 @@ arm64-obj-$(CONFIG_ARM64_ACPI_PARKING_PROTOCOL) += acpi_parking_protocol.o arm64-obj-$(CONFIG_PARAVIRT) += paravirt.o arm64-obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o arm64-obj-$(CONFIG_HIBERNATION) += hibernate.o hibernate-asm.o -arm64-obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o \ +arm64-obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o relocate_kernel.o \ cpu-reset.o arm64-obj-$(CONFIG_KEXEC_FILE) += machine_kexec_file.o arm64-obj-$(CONFIG_ARM64_RELOC_TEST) += arm64-reloc-test.o -- 2.14.1
