On 26/05/2015 12:15, Alexey Kardashevskiy wrote: > There was a "[RFC PATCH 00/15] spapr: add support for PHB hotplug" > patchset from Mike, this patch added "unrealize" for spapr_phb: > > [RFC PATCH 05/15] spapr_pci: add PHB unrealize > > I believe I am dealing with the fixed version of this patch so I'll ask > Mike to respin it. > > >> >>> So, the sentences after that one note an exception for alias and >>> container regions. I think iommu regions should behave similarly >>> - in a sense they're just a procedurally generated collection of >>> alias regions. >> >> The difference is that containers and aliases are resolved at the time >> the memory region tree is flattened, while IOMMU regions are resolved >> at run time. > > So they are not parts of flattened view and I should be able to > add/remove these IOMMU subregions any time I like?
Yes. Paolo
