git: boot - Add EFI support for placing /boot in a disklabel's 'a' partition.

[Matthew Dillon]

commit f1591f08811f69cff80209cdee0b498dc92356ab
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Fri Oct 28 18:45:45 2016 -0700

    boot - Add EFI support for placing /boot in a disklabel's 'a' partition.
    
    * Add support to allow /boot to reside in the 'a' partition of a DragonFly
      disklabel64.  This allow /boot to be in either its own gpt partition or
      in the 'a' partition of a disklabel64 inside a gpt partition.
    
    * Nominally allows the following gpt setup where all of DragonFly except
      the EFI System partition is contained in a DragonFly disklabel.
    
           2048     204800      0  GPT part - EFI System
         206848  124837888      1  GPT part - DragonFly Label64
    
      The disklabel can then be initialized as per the DragonFlyBSD standard,
      typically something like (example only):
    
        16 partitions:
        #          size     offset    fstype   fsuuid
          a:    1048576          0    4.2BSD    #    1024.000MB
          b:    8388608          *      swap    #    8192.000MB
          d:          *          *    HAMMER

Summary of changes:
 sys/boot/efi/boot1/ufs_module.c | 23 +++++++++++++++++++++--
 sys/boot/efi/include/efilib.h   |  1 +
 sys/boot/efi/libefi/efipart.c   | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 2 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/f1591f08811f69cff80209cdee0b498dc92356ab


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