mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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809a11eea8
This patch creates image_kexec_ops to load Image binary file for kexec_file_load() syscall. Signed-off-by: Song Shuai <songshuaishuai@tinylab.org> Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20250409193004.643839-3-bjorn@kernel.org Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2019 FORTH-ICS/CARV
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* Nick Kossifidis <mick@ics.forth.gr>
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*/
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#ifndef _RISCV_KEXEC_H
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#define _RISCV_KEXEC_H
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#include <asm/page.h> /* For PAGE_SIZE */
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/* Maximum physical address we can use pages from */
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#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
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/* Maximum address we can reach in physical address mode */
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#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
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/* Maximum address we can use for the control code buffer */
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#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
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/* Reserve a page for the control code buffer */
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#define KEXEC_CONTROL_PAGE_SIZE PAGE_SIZE
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#define KEXEC_ARCH KEXEC_ARCH_RISCV
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extern void riscv_crash_save_regs(struct pt_regs *newregs);
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static inline void
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crash_setup_regs(struct pt_regs *newregs,
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struct pt_regs *oldregs)
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{
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if (oldregs)
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memcpy(newregs, oldregs, sizeof(struct pt_regs));
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else
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riscv_crash_save_regs(newregs);
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}
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#define ARCH_HAS_KIMAGE_ARCH
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struct kimage_arch {
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void *fdt; /* For CONFIG_KEXEC_FILE */
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unsigned long fdt_addr;
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};
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extern const unsigned char riscv_kexec_relocate[];
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extern const unsigned int riscv_kexec_relocate_size;
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typedef void (*riscv_kexec_method)(unsigned long first_ind_entry,
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unsigned long jump_addr,
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unsigned long fdt_addr,
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unsigned long hartid,
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unsigned long va_pa_off);
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extern riscv_kexec_method riscv_kexec_norelocate;
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#ifdef CONFIG_KEXEC_FILE
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extern const struct kexec_file_ops elf_kexec_ops;
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extern const struct kexec_file_ops image_kexec_ops;
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struct purgatory_info;
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int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
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Elf_Shdr *section,
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const Elf_Shdr *relsec,
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const Elf_Shdr *symtab);
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#define arch_kexec_apply_relocations_add arch_kexec_apply_relocations_add
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struct kimage;
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int arch_kimage_file_post_load_cleanup(struct kimage *image);
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#define arch_kimage_file_post_load_cleanup arch_kimage_file_post_load_cleanup
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int load_extra_segments(struct kimage *image, unsigned long kernel_start,
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unsigned long kernel_len, char *initrd,
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unsigned long initrd_len, char *cmdline,
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unsigned long cmdline_len);
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#endif
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#endif
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