projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| 607ca46e DH |
2 | #ifndef _UAPILINUX_KEXEC_H |
| 3 | #define _UAPILINUX_KEXEC_H | |
| 4 | ||
| 5 | /* kexec system call - It loads the new kernel to boot into. | |
| 6 | * kexec does not sync, or unmount filesystems so if you need | |
| 7 | * that to happen you need to do that yourself. | |
| 8 | */ | |
| 9 | ||
| 10 | #include <linux/types.h> | |
| 11 | ||
| 12 | /* kexec flags for different usage scenarios */ | |
| 13 | #define KEXEC_ON_CRASH 0x00000001 | |
| 14 | #define KEXEC_PRESERVE_CONTEXT 0x00000002 | |
| 15 | #define KEXEC_ARCH_MASK 0xffff0000 | |
| 16 | ||
| cb105258 VG |
17 | /* |
| 18 | * Kexec file load interface flags. | |
| 19 | * KEXEC_FILE_UNLOAD : Unload already loaded kexec/kdump image. | |
| 20 | * KEXEC_FILE_ON_CRASH : Load/unload operation belongs to kdump image. | |
| 21 | * KEXEC_FILE_NO_INITRAMFS : No initramfs is being loaded. Ignore the initrd | |
| 22 | * fd field. | |
| 23 | */ | |
| 24 | #define KEXEC_FILE_UNLOAD 0x00000001 | |
| 25 | #define KEXEC_FILE_ON_CRASH 0x00000002 | |
| 26 | #define KEXEC_FILE_NO_INITRAMFS 0x00000004 | |
| 27 | ||
| 607ca46e DH |
28 | /* These values match the ELF architecture values. |
| 29 | * Unless there is a good reason that should continue to be the case. | |
| 30 | */ | |
| 31 | #define KEXEC_ARCH_DEFAULT ( 0 << 16) | |
| 32 | #define KEXEC_ARCH_386 ( 3 << 16) | |
| 7d5f5fa2 | 33 | #define KEXEC_ARCH_68K ( 4 << 16) |
| fc697dc0 | 34 | #define KEXEC_ARCH_PARISC (15 << 16) |
| 607ca46e DH |
35 | #define KEXEC_ARCH_X86_64 (62 << 16) |
| 36 | #define KEXEC_ARCH_PPC (20 << 16) | |
| 37 | #define KEXEC_ARCH_PPC64 (21 << 16) | |
| 38 | #define KEXEC_ARCH_IA_64 (50 << 16) | |
| 39 | #define KEXEC_ARCH_ARM (40 << 16) | |
| 40 | #define KEXEC_ARCH_S390 (22 << 16) | |
| 41 | #define KEXEC_ARCH_SH (42 << 16) | |
| 42 | #define KEXEC_ARCH_MIPS_LE (10 << 16) | |
| 43 | #define KEXEC_ARCH_MIPS ( 8 << 16) | |
| d28f6df1 | 44 | #define KEXEC_ARCH_AARCH64 (183 << 16) |
| d83e682e | 45 | #define KEXEC_ARCH_RISCV (243 << 16) |
| 08145b08 | 46 | #define KEXEC_ARCH_LOONGARCH (258 << 16) |
| 607ca46e DH |
47 | |
| 48 | /* The artificial cap on the number of segments passed to kexec_load. */ | |
| 49 | #define KEXEC_SEGMENT_MAX 16 | |
| 50 | ||
| 51 | #ifndef __KERNEL__ | |
| 52 | /* | |
| 53 | * This structure is used to hold the arguments that are used when | |
| 54 | * loading kernel binaries. | |
| 55 | */ | |
| 56 | struct kexec_segment { | |
| 57 | const void *buf; | |
| 8b4bca21 | 58 | __kernel_size_t bufsz; |
| 607ca46e | 59 | const void *mem; |
| 8b4bca21 | 60 | __kernel_size_t memsz; |
| 607ca46e DH |
61 | }; |
| 62 | ||
| 607ca46e DH |
63 | #endif /* __KERNEL__ */ |
| 64 | ||
| 65 | #endif /* _UAPILINUX_KEXEC_H */ |