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Roger Pau Monne
7379f9e10a
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. Note the version is specified using 4 bits, which leaves room to specify up to grant table version 15. Given that we only have 2 grant table versions right now, and a new version is unlikely in the near future using 4 bits seems more than enough. xenstored stubdomains are limited to grant table v1 because the current MiniOS code used to build them only has support for grants v1. There are existing limits set for xenstored stubdomains at creation time that already match the defaults in MiniOS. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Christian Lindig <christian.lindig@citrix.com> Reviewed-by: Ian Jackson <iwj@xenproject.org> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Release-Acked-by: Ian Jackson <iwj@xenproject.org>