Re: [Qemu-ppc] [Qemu-devel] [PATCH v2 4/6] prep: move int-ack register from PReP to Raven PCI emulation

[Avi Kivity]

On 04/28/2012 09:46 PM, Andreas Färber wrote:
> Am 14.04.2012 22:48, schrieb Hervé Poussineau:
> > Register is one byte-wide (as per specification), so there is no need to 
> > specify endianness.
>
> The region was 4 bytes before, now it's 1. What happens when a 4-byte
> read is attempted at that address? Do we need to specify the valid
> widths for the MemoryRegion? Or is such a read constructed from this
> region and (assuming) the return value of an unassigned read?

This area of what happens during access that falls across region
boundaries is very underspecified in qemu; nor is it clear what happens
in real hardware (in all its variations).


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