"Michael S. Tsirkin" <[email protected]> writes: > On Mon, Mar 25, 2013 at 08:30:28PM +1030, Rusty Russell wrote: >> Let's go back a level. Do we still need I/O bars at all now? Or can we >> say "if you want hundreds of vqs, use mem bars"? >> >> hpa wanted the option to have either, but do we still want that? > > hpa says having both is required for BIOS, not just for speed with KVM.
OK so the offset must not be applied to the I/O bar as you suggested. Since AFAICT I/O bars are deprecated, should we insist that there be a memory bar, and the I/O bar is optional? Or just leave it entirely undefined, and say there can be either or both? I dislike the idea of BIOS code which assumed an I/O bar and thus won't work with a compliant device which doesn't provide one. I'd prefer all compliant drivers to work with all compliant devices. Cheers, Rusty. _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
