Il 09/08/2013 12:20, Benjamin Herrenschmidt ha scritto: > On Fri, 2013-08-09 at 11:40 +0200, Paolo Bonzini wrote: >> (BTW, do you need to enable bus-master DMA on PCI bridges, to do DMA >> for devices sitting on the secondary bus?) > > In theory yes though I have seen bridges who ignore it...
And we would need a compatibility property anyway. So let's choose to be among the ones who ignore it (i.e. the same as this patch). But it needs a comment. Paolo
