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Commit 3ddd9992 authored by AKASHI Takahiro's avatar AKASHI Takahiro Committed by Will Deacon
Browse files

arm64: enable KEXEC_FILE config 



Modify arm64/Kconfig to enable kexec_file_load support.

Signed-off-by: default avatarAKASHI Takahiro <takahiro.akashi@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: default avatarJames Morse <james.morse@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent bdd2c9d1

arch/arm64/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -858,6 +858,15 @@ 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

	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

arch/arm64/kernel/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -49,8 +49,9 @@ 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

arm64-reloc-test-y := reloc_test_core.o reloc_test_syms.o

arm64-obj-$(CONFIG_CRASH_DUMP)		+= crash_dump.o

arch/arm64/kernel/machine_kexec_file.c

0 → 100644
+16 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * kexec_file for arm64

 *

 * Copyright (C) 2018 Linaro Limited

 * Author: AKASHI Takahiro <takahiro.akashi@linaro.org>

 *

 */



#define pr_fmt(fmt) "kexec_file: " fmt



#include <linux/kexec.h>



const struct kexec_file_ops * const kexec_file_loaders[] = {

	NULL

};