On 05/19/2011 07:38 PM, Anthony Liguori wrote:
You can always create a new memory region with higher priority, pointing
to the RAM window you want to have above VGA. That's what we do today as
well, just with different effects on the internal representation.
But then we're no better than we are today. I thought the whole point
of this thread of discussion was to allow overlapping I/O regions to
be handled in a better way than we do today?
It is, and the goal is achieved. Right now the code saves the old
contents in isa_page_descs. With the new approach it calls
memory_region_del_subregion() and the previous contents magically appear
(or new contents if they changed in the meanwhile).
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
