Am 29.04.2012 10:32, schrieb 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).
So, what's your conclusion here? Should we add .valid.max_access_size = 1? Or shall I apply as is? Andreas
