diff options
Diffstat (limited to 'kexec/kexec-syscall.h')
| -rw-r--r-- | kexec/kexec-syscall.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/kexec/kexec-syscall.h b/kexec/kexec-syscall.h index 6238044..ce2e20b 100644 --- a/kexec/kexec-syscall.h +++ b/kexec/kexec-syscall.h @@ -53,6 +53,19 @@ #endif #endif /*ifndef __NR_kexec_load*/ +#ifndef __NR_kexec_file_load + +#ifdef __x86_64__ +#define __NR_kexec_file_load 320 +#endif + +#ifndef __NR_kexec_file_load +/* system call not available for the arch */ +#define __NR_kexec_file_load 0xffffffff /* system call not available */ +#endif + +#endif /*ifndef __NR_kexec_file_load*/ + struct kexec_segment; static inline long kexec_load(void *entry, unsigned long nr_segments, @@ -61,10 +74,29 @@ static inline long kexec_load(void *entry, unsigned long nr_segments, return (long) syscall(__NR_kexec_load, entry, nr_segments, segments, flags); } +static inline int is_kexec_file_load_implemented(void) { + if (__NR_kexec_file_load != 0xffffffff) + return 1; + return 0; +} + +static inline long kexec_file_load(int kernel_fd, int initrd_fd, + unsigned long cmdline_len, const char *cmdline_ptr, + unsigned long flags) +{ + return (long) syscall(__NR_kexec_file_load, kernel_fd, initrd_fd, + cmdline_len, cmdline_ptr, flags); +} + #define KEXEC_ON_CRASH 0x00000001 #define KEXEC_PRESERVE_CONTEXT 0x00000002 #define KEXEC_ARCH_MASK 0xffff0000 +/* Flags for kexec file based system call */ +#define KEXEC_FILE_UNLOAD 0x00000001 +#define KEXEC_FILE_ON_CRASH 0x00000002 +#define KEXEC_FILE_NO_INITRAMFS 0x00000004 + /* These values match the ELF architecture values. * Unless there is a good reason that should continue to be the case. */ |