[Qemu-devel] [PATCH for-2.3 0/3] ioport fixes

[Paolo Bonzini <pbonzini@redhat.com>]

These fix the problem with OpenBIOS's accesses to the VBE DISPI ports.
The problem stems from weird memory regions created by ioport.c.

Patches 1-3 simplify some of the MemoryRegionPortio arrays.  This makes it
easier to ascertain the effect of patch 6, since the patch only affects
MemoryRegionPortio entries whose size is greater than one.

Patch 4 fixes a comment.  ioport.c is crazy enough without wrong
documentation.

The fix is in patch 6; however it makes it possible to trigger some
assertions in ioport.c so patch 5 is needed in order to loosen them.

Peter, if you prefer you can just revert c3c1bb99.

Paolo

Paolo Bonzini (6):
  sb16: remove useless mixer_write_indexw
  gus: clean up MemoryRegionPortio
  ide: there is only one data port
  ioport: remove wrong comment
  ioport: loosen assertions on emulation of 16-bit ports
  ioport: reserve the whole range of an I/O port in the AddressSpace

 hw/audio/gus.c  | 22 ++--------------------
 hw/audio/sb16.c |  7 -------
 hw/ide/core.c   |  4 ++--
 ioport.c        | 30 +++++++++++++++++-------------
 4 files changed, 21 insertions(+), 42 deletions(-)

-- 
2.3.4