On Sun, 16 Jul 2017 07:44:01 +0200 Andreas Hartmann <andihartmann@xxxxxxxxxxxxxxx> wrote: > Hello! > > I've got a Asus X370-Pro motherboard with enabled iommu. Unfortunately, > the group 0 is mostly all of the system :-). > > [ 2.602426] iommu: Adding device 0000:00:01.0 to group 0 > [ 2.602440] iommu: Adding device 0000:00:01.3 to group 0 > [ 2.603368] iommu: Adding device 0000:03:00.0 to group 0 > [ 2.603377] iommu: Adding device 0000:03:00.1 to group 0 > [ 2.603385] iommu: Adding device 0000:03:00.2 to group 0 > [ 2.603396] iommu: Adding device 0000:1d:00.0 to group 0 > [ 2.603406] iommu: Adding device 0000:1d:02.0 to group 0 > [ 2.603417] iommu: Adding device 0000:1d:03.0 to group 0 > [ 2.603428] iommu: Adding device 0000:1d:04.0 to group 0 > [ 2.603439] iommu: Adding device 0000:1d:06.0 to group 0 > [ 2.603450] iommu: Adding device 0000:1d:07.0 to group 0 > [ 2.603466] iommu: Adding device 0000:24:00.0 to group 0 > [ 2.603481] iommu: Adding device 0000:25:00.0 to group 0 > [ 2.603498] iommu: Adding device 0000:26:00.0 to group 0 > [ 2.603513] iommu: Adding device 0000:27:00.0 to group 0 Update your motherboard BIOS, AMD AGESA 1.0.0.6 is supposed to enable ACS in the PCIe root ports. Thanks, Alex
