git: DragonFly_RELEASE_2_4 boot - Bring in real-mode fixes for BIOS calls

[Matthew Dillon]

commit 5e0f257b4560979e89beaca51e3761def38b1c15
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Fri Sep 18 12:18:55 2009 -0700

    boot - Bring in real-mode fixes for BIOS calls
    
    * Make BIOS calls in real mode now (I think), and no longer use the
      pmap hacks.
    
      Improves BIOS compatibility, particularly when booting from a USB
      mass storage device.
    
    Taken-from: FreeBSD
    Submitted-by: Jordan Gordeev <smtms at crater.dragonflybsd.org>

Summary of changes:
 sys/boot/pc32/boot2/boot2.c    |    6 +-
 sys/boot/pc32/bootasm.h        |   14 +-
 sys/boot/pc32/btx/btx/Makefile |    4 -
 sys/boot/pc32/btx/btx/btx.S    | 1144 ++++++++++++++++++----------------------
 sys/boot/pc32/loader/main.c    |    6 +
 5 files changed, 527 insertions(+), 647 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/5e0f257b4560979e89beaca51e3761def38b1c15


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