On April 27, 2016 11:48 PM, George Dunlap <george.dun...@citrix.com> wrote: > On 18/04/16 15:00, Quan Xu wrote: > > If IOMMU mapping and unmapping failed, the domain (with the exception > > of the hardware domain) is crashed, treated as a fatal error. Rollback > > can be lighter weight. > > > > For the hardware domain, we do things on a best effort basis. When > > rollback is not feasible (in early initialization phase or trade-off > > of complexity), at least, unmap upon maps error or then throw out error > message. > > > > IOMMU unmapping should perhaps continue despite an error, in an > > attempt to do best effort cleanup. > > > > Signed-off-by: Quan Xu <quan...@intel.com> > > FWIW, looking through this I think Jan and Kevin covered everything I would > have brought up. > George, thanks for your attention. Your comments as always are greatly appreciated too. :) Quan
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