Il 25/06/2014 19:06, Nikolay Nikolaev ha scritto:
> I understand now what you mean. Yeah, the format should be changed
> to include the offset (why does vhost-user need the ua at all?
> perhaps the offset can replace the ua).
I am trying to do the math here. So if this file is mapped by QEMU
into a single file then probably
(region[4].ua - region[3].ua) should give you the offset. And also
(region[4].ua - region[1].ua) shoudl give the above 3G offset. Or I am
missing something?
This is correct, but in principle it's not required to map all the
areas. The lowest region could correspond to a offset=65536, or
something like that. It's better to change the vring values to use
offsets instead of absolute addresses.
Paolo
