On 22.09.2021 10:21, Roger Pau Monne wrote: > Introduce a new domain create field so that toolstack can specify the > maximum grant table version usable by the domain. This is plumbed into > xl and settable by the user as max_grant_version. > > Previously this was only settable on a per host basis using the > gnttab command line option.
One further remark: Already with the command line control is was questionable in how far people are aware that PV guests may need to use v2, if the host has memory beyond the 16Tb address boundary. I wonder whether permitting to restrict to v1 on such hosts isn't counterproductive. I guess at the very least a warning may want logging. Jan
