"Michael S. Tsirkin" writes:
> Some setups don't support enabling BAR0 (IO BAR). Reasons range from CPU
> limitations (e.g. on some powerpc setups) to architecture limmitations
> (e.g. a setup with >15 PCI bridges, with one virtio device behind each,
> on x86).
>
> PCI Express spec made IO optiona
Some setups don't support enabling BAR0 (IO BAR). Reasons range from CPU
limitations (e.g. on some powerpc setups) to architecture limmitations
(e.g. a setup with >15 PCI bridges, with one virtio device behind each,
on x86).
PCI Express spec made IO optional, so future guests will disable IO for
a
