[PATCH v2 0/6] Add initial support for booting x86_64 from grub

[Luca Dariz]

Updates from previous submission:
* added more description of the changes in the commit message
* removed some minor changes needed only when running the kernel from
  high addreses (>4G), currently it fails to link and it will be
  handled in another patch
* updated pre-processor condition for write access in PDP table, it's
  not impacting current 32-bit builds (non-PAE)
* updated command line fix for console=comX
* better fix for rbx corruption in x86_64/interrupt.S
* improved x86_64/boothdr.S, removing most magic numbers or adding an
  explanatory comment

Luca Dariz (6):
  add support for booting from grub with x86_64
  cleanup multiboot
  fix register corruption in irq on qemu
  fix console setting from cmdline
  enable user access
  fix Task State Segment layout for 64 bit

 Makefrag.am                        |   1 -
 configure.ac                       |   3 +-
 i386/configfrag.ac                 |   2 +
 i386/i386/i386asm.sym              |   5 +
 i386/i386/ktss.c                   |   8 +-
 i386/i386/pcb.c                    |   4 +
 i386/i386/tss.h                    |  24 ++-
 i386/i386/vm_param.h               |   2 +-
 i386/i386at/com.c                  |   5 +
 i386/i386at/model_dep.c            |  23 +--
 i386/include/mach/i386/multiboot.h | 108 +------------
 i386/intel/pmap.c                  |   8 +-
 i386/intel/pmap.h                  |   1 +
 include/mach/multiboot.h           |  82 ----------
 kern/bootstrap.c                   |  20 ++-
 x86_64/Makefrag.am                 |  18 ++-
 x86_64/boothdr.S                   | 238 +++++++++++++++++++++++++++++
 x86_64/interrupt.S                 |  12 +-
 x86_64/ldscript                    |  28 ++--
 19 files changed, 361 insertions(+), 231 deletions(-)
 delete mode 100644 include/mach/multiboot.h
 create mode 100644 x86_64/boothdr.S

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2.30.2