[Qemu-devel] [PATCH 0/7] int128: reparing broken 128 bit memory calculations

[Pierre Morel]

The size of a memory area can never be negative.
It follows it must be defined as an unsigned value.
    
Let's modify the memory regions size to unsigned 128 integer
and modify accordingly the 128 bit arithmetic.
    
This makes memory size calculations easier and easier to understand.
    
I fear loud protest but really, it is a broken concept that
obfuscate the code.


Pierre Morel (7):
  int128: use unsigned 128 bit arithmetic
  memory: modify memory size for an unsigned 128bit int
  128bit: adapt core files for unsigned 128bits
  128bit: adapt sparc mmu_helper for UInt128
  128bit: adapt VFIO for UInt128 arithmetic
  128bit: adapt Virtio for UInt128 arithmetic
  128bits: some HW components use 128bit arithmetic.

 exec.c                       |   32 ++++----
 hw/core/loader.c             |    2 +-
 hw/display/exynos4210_fimd.c |    4 +-
 hw/display/framebuffer.c     |    2 +-
 hw/mem/pc-dimm.c             |    6 +-
 hw/pci-host/ppce500.c        |    2 +-
 hw/vfio/common.c             |   20 +++---
 hw/virtio/dataplane/vring.c  |    2 +-
 hw/virtio/vhost.c            |    4 +-
 hw/virtio/virtio-balloon.c   |    2 +-
 include/exec/memory.h        |    4 +-
 include/qemu/int128.h        |   95 ++++++++++-----------
 kvm-all.c                    |   16 ++--
 memory.c                     |  184 +++++++++++++++++++++---------------------
 memory_mapping.c             |    2 +-
 target-sparc/mmu_helper.c    |    2 +-
 16 files changed, 187 insertions(+), 192 deletions(-)