>>> Roger Pau Monne <roger....@citrix.com> 04/24/17 1:52 PM >>> >Make sure the reserved regions are setup before enabling the DMA remapping in >the IOMMU, by calling dom0_setup_permissions before iommu_hwdom_init. Also, in >order to workaround IOMMU issues seen on pre-Haswell Intel hardware, make sure >the DMA remapping is enabled after populating Dom0 p2m.
Looks reasonable (especially considering that iommu_hwdom_init() is being called fairly late in the PV case as well), but please explain the "IOMMU issues seen on pre-Haswell Intel hardware" a little here (or if it all is mean to refer to what patch 3 does, refer to it). Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
