On 10/26/2010 07:27 PM, Anthony Liguori wrote:
Sorry, I don't follow your meaning.

When I said "size is implied" I meant that the IOPort object has a separate function pointer for sizes 1, 2, and 4, so it ioport_register() doesn't need a size parameter. But I don't see how that relates to your comment.


Yeah, I don't think it makes sense to combine "this is how to dispatch I/O" with "this is a region of I/O address space".

Oh, so Blue meant the size of the region in ports, not the size of the individual ports. I think that putting the range length (but not base address) in the IOPort structure may make sense.


I think an IORegion should contain an IOPort structure though. I think the name needs rethinking.

Maybe:

struct PortIOHandler;
struct MemoryIOHandler;

Why two types? I think some devices use PIO on a PC and MMIO on other architectures. Sharing the type would allow sharing code.

--
error compiling committee.c: too many arguments to function


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