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    The following form allows you to view linux man pages.

    Command:

    kexec_load

    
    
    

    SYNOPSIS

           #include <linux/kexec.h>
           long kexec_load(unsigned long entry, unsigned long nr_segments,
                           struct kexec_segment *segments, unsigned long flags);
    
           Note: There is no glibc wrapper for this system call; see NOTES.
    
    
    

    DESCRIPTION

           The  kexec_load()  system  call loads a new kernel that can be executed
           later by reboot(2).
    
           The flags argument is a mask whose high-order bits control  the  opera-
           tion of the call.  The following values can be specified in flags:
    
           KEXEC_ON_CRASH (since Linux 2.6.13)
                  Execute the new kernel automatically on a system crash.
    
           KEXEC_PRESERVE_CONTEXT (since Linux 2.6.27)
                  Preserve  the system hardware and software states before execut-
                  ing the new kernel.  This could  be  used  for  system  suspend.
                  This  flag  is  available only if the kernel was configured with
                  CONFIG_KEXEC_JUMP, and  is  effective  only  if  nr_segments  is
                  greater than 0.
    
           The  low-order bits of flags contain the architecture of the to-be-exe-
           cuted kernel.  Specify (OR) the constant KEXEC_ARCH_DEFAULT to use  the
           current  architecture,  or  one of the following architecture constants
           KEXEC_ARCH_386,  KEXEC_ARCH_X86_64,  KEXEC_ARCH_PPC,  KEXEC_ARCH_PPC64,
           KEXEC_ARCH_IA_64,   KEXEC_ARCH_ARM,   KEXEC_ARCH_S390,   KEXEC_ARCH_SH,
           KEXEC_ARCH_MIPS, and KEXEC_ARCH_MIPS_LE.  The architecture must be exe-
           cutable on the CPU of the system.
    
           The  entry  argument is the physical entry address in the kernel image.
           The nr_segments argument is the number of segments pointed  to  by  the
           segments  pointer.   The segments argument is an array of kexec_segment
           structures which define the kernel layout:
    
               struct kexec_segment {
                   void   *buf;        /* Buffer in user space */
                   size_t  bufsz;      /* Buffer length in user space */
                   void   *mem;        /* Physical address of kernel */
                   size_t  memsz;      /* Physical address length */
               };
    
           The kernel image defined by segments is copied from the calling process
           into previously reserved memory.
    
    
    

    RETURN VALUE

           On success, kexec_load() returns 0.  On error, -1 is returned and errno
           is set to indicate the error.
    
    
    

    ERRORS

           Currently,  there  is no glibc support for kexec_load().  Call it using
           syscall(2).
    
           The  required  constants  are  in  the   Linux   kernel   source   file
           linux/kexec.h,  which  is  not currently exported to glibc.  Therefore,
           these constants must be defined manually.
    
           This system call is available only if the kernel  was  configured  with
           CONFIG_KEXEC.
    
    
    

    SEE ALSO

           reboot(2), syscall(2)
    
    
    

    Linux 2012-07-13 KEXEC_LOAD(2)

    
    
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