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linux/arch/riscv/kernel/machine_kexec_file.c
Liao Chang 6261586e0c
RISC-V: Add kexec_file support
This patch adds support for kexec_file on RISC-V. I tested it on riscv64
QEMU with busybear-linux and single core along with the OpenSBI firmware
fw_jump.bin for generic platform.

On SMP system, it depends on CONFIG_{HOTPLUG_CPU, RISCV_SBI} to
resume/stop hart through OpenSBI firmware, it also needs a OpenSBI that
support the HSM extension.

Signed-off-by: Liao Chang <liaochang1@huawei.com>
Signed-off-by: Li Zhengyu <lizhengyu3@huawei.com>
Link: https://lore.kernel.org/r/20220408100914.150110-4-lizhengyu3@huawei.com
[Palmer: Make 64-bit only]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-05-19 12:14:18 -07:00

15 lines
335 B
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* kexec_file for riscv, use vmlinux as the dump-capture kernel image.
*
* Copyright (C) 2021 Huawei Technologies Co, Ltd.
*
* Author: Liao Chang (liaochang1@huawei.com)
*/
#include <linux/kexec.h>
const struct kexec_file_ops * const kexec_file_loaders[] = {
&elf_kexec_ops,
NULL
};