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

[Peter Maydell]

On 30 March 2015 at 12:45, Paolo Bonzini <address@hidden> wrote:
> 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.

Given the SPARC reset breakage also, I agree with you
(in the other thread) that we should revert c3c1bb99
for 2.3, and fix this all properly in 2.4.

thanks
-- PMM