On Sun, 2007-09-23 at 12:05 +0200, Avi Kivity wrote: > Rusty Russell wrote: > > On Thu, 2007-09-20 at 14:43 +0200, Avi Kivity wrote: > >> 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 like to feel that I make these mistakes to ensure others are paying > > attention. However, it does mean that I can just put an address in > > there and increase the length field to 32 bits. Much rejoicing. > > > > Why are we sending page numbers anyway? See below. Perhaps I was unclear. I already changed to a 64-bit address. I haven't send out another set of patches because I'm changing to Arnd's explicit virtio bus too. Will send out a new set tomorrow at this rate. > Where one of the flags is VRING_DESC_INDIRECT, which means that the > memory within (address, length) is a bunch of descriptors instead of raw > data. If that's all we wanted, it's fairly easy to do as a future extension even if we didn't change it today. My concern was the allocation and management of those sg pages; hence my desire for a patch 8) Rusty. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
