On Wed, Mar 01, 2017 at 09:03:47AM +0200, Marcel Apfelbaum wrote: > On 03/01/2017 06:14 AM, Jason Wang wrote:
[...] > Hi Jason, > > I am not saying we don't need to create the IOMMU before some other device, > I just don't think that the command line order should matter to user. > > BTW, are you working on a way to limit the IOMMU scope to a specific set of > devices? > If yes, this approach will also help you work. Marcel, Do you have any plan after 2.9 to re-arrange the init order thing a bit? In general, maybe we need an ordering support for devices. Besides that, I am thinking whether it would be wise that we just init the IOMMUs during machine init just like before, but keep the "-device" interface? After all, at least the root IOMMU device should be with root complex, and it feels a little strange we just split the init process apart (we delay the IOMMU init into device initializations). Not sure whether above makes sense though. Thanks, -- peterx
