[PATCH v6 09/10] arm64: enable KEXEC_FILE config
From: AKASHI Takahiro <hidden>
Date: 2017-10-24 06:22:49
Also in:
kexec, lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Modify arm64/Kconfig and Makefile to enable kexec_file_load support. Signed-off-by: AKASHI Takahiro <redacted> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <redacted> --- arch/arm64/Kconfig | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0df64a6a56d4..e37be8a59a88 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig@@ -757,6 +757,28 @@ 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. + + In addition to this option, you need to enable a specific type + of image support. + +config KEXEC_VERIFY_SIG + bool "Verify kernel signature during kexec_file_load() syscall" + depends on KEXEC_FILE + select SYSTEM_DATA_VERIFICATION + ---help--- + Select this option to verify a signature with loaded kernel + image. If configured, any attempt of loading a image without + valid signature will fail. + config CRASH_DUMP bool "Build kdump crash kernel" help
--
2.14.1