Re: [PATCH 6/6] virtio ring helper

Avi Kivity
2007-09-20T12:43:34Z

Rusty Russell wrote:
> These helper routines supply most of the virtqueue_ops for hypervisors
> which want to use a ring for virtio. Unlike the previous lguest
> implementation:
>
> 3) The page numbers are always 64 bit (PAE anyone?)
>

32 bits of page numbers give 44 bits of physical address on x86. That's
16TB per guest. Admittedly it's smaller on a VAX.

I don't like the chaining and would prefer the descriptor to refer to an
array of page descriptors. However I can't complain since this isn't
common code.

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