On June 15, 2017 11:33:22 AM EDT, Borislav Petkov <bp@xxxxxxxxx> wrote: >On Thu, Jun 15, 2017 at 09:59:45AM -0500, Tom Lendacky wrote: >> Actually the detection routine, amd_iommu_detect(), is part of the >> IOMMU_INIT_FINISH macro support which is called early through >mm_init() >> from start_kernel() and that routine is called before init_amd(). > >Ah, we do that there too: > > for (p = __iommu_table; p < __iommu_table_end; p++) { > >Can't say that that code with the special section and whatnot is >obvious. :-\ > Patches to make it more obvious would be always welcome! Thanks!