Re: [PATCH v10 07/14] arm64: enable KEXEC_FILE config
From: James Morse
Date: Tue Jul 03 2018 - 12:33:30 EST
On 23/06/18 03:20, AKASHI Takahiro wrote:
> Modify arm64/Kconfig to enable kexec_file_load support.
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 42c090cf0292..f68318f61c85 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -835,6 +835,16 @@ 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
Wasn't BIN2C only needed for purgatory?
x86/powerpc/s390 all select CRYPTO_SHA256 here, presumably for arch-specific
verification mechanisms. I assume we're using SIGNED_PE_FILE_VERIFICATION instead.
> + 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 CRASH_DUMP
> bool "Build kdump crash kernel"
Acked-by: James Morse <james.morse@xxxxxxx>