Re: [PATCH v10 07/14] arm64: enable KEXEC_FILE config

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Hi Akashi,

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"
>  	help


Acked-by: James Morse <james.morse@xxxxxxx>


Thanks,

James

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