On Mon, Jan 21, 2019 at 07:02:25PM +0000, Andrew Cooper wrote: > This option is unique to x86 PV dom0's, but it is not sensible to have a > catch-all which blindly maps all non-RAM regions into the IOMMU. > > The map-reserved option remains, and covers all the buggy firmware issues that > I am aware of. The two common cases are legacy USB keyboard emulation, and > the BMC mailbox used by vendor firmware in NICs/HBAs to report information > back to the iLO/iDRAC/etc for remote remote management purposes. > > A specific advantage of this change is that x86 dom0's IOMMU setup is now > consistent between PV and PVH. > > This change is not expected to have any impact, due to map-reserved remaining. > In the unlikely case that it does cause an issue, we should introduce other > map-$SPECIFIC options rather than re-introducing this catch-all. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> > Release-acked-by: Juergen Gross <jgr...@suse.com>
Reviewed-by: Roger Pau Monné <roger....@citrix.com> Will it be worth printing a warning message in arch_iommu_hwdom_init about map-inclusive deprecation if it's enabled? Thanks, Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
