[+cc Rafael, linux-acpi] On Tue, Jul 30, 2013 at 6:35 PM, Takao Indoh <indou.takao at jp.fujitsu.com> wrote: > On x86, currently IOMMU initialization run *after* PCI enumeration, but > what you are talking about is that it should be changed so that x86 > IOMMU initialization is done *before* PCI enumeration like sparc, right? Yes. I don't know whether or when that initialization order will ever be changed, but I do think we should avoid building more infrastructure that depends on the current order. Changing the order is a pretty big deal because it's a lot more than just the IOMMU. Basically I think we should be enumerating ACPI devices, including the IOMMU, before PCI devices, but there's a lot of legacy involved in that area. Added Rafael in case he has any thoughts. > Hmm, ok, I think I need to post attached patch to iommu list and > discuss it including current order of x86 IOMMU initialization.
