On Fri, Sep 13, 2019 at 10:47:38AM +0100, Paul Durrant wrote: > This patch defines a new bit reported in the hw_cap field of struct > xen_sysctl_physinfo to indicate whether the platform supports sharing of > HAP page tables (i.e. the P2M) with the IOMMU. This informs the toolstack > whether the domain needs extra memory to store discrete IOMMU page tables > or not. > > NOTE: This patch makes sure iommu_hap_pt_shared is clear if HAP is not > supported or the IOMMU is disabled, and defines it to false if > !CONFIG_HVM. > > Signed-off-by: Paul Durrant <paul.durr...@citrix.com> > Acked-by: Christian Lindig <christian.lin...@citrix.com> > --- > Cc: Ian Jackson <ian.jack...@eu.citrix.com> > Cc: Wei Liu <w...@xen.org> > Cc: Anthony PERARD <anthony.per...@citrix.com> > Cc: Andrew Cooper <andrew.coop...@citrix.com> > Cc: George Dunlap <george.dun...@eu.citrix.com> > Cc: Jan Beulich <jbeul...@suse.com> > Cc: Julien Grall <julien.gr...@arm.com> > Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> > Cc: Stefano Stabellini <sstabell...@kernel.org> > Cc: Tim Deegan <t...@xen.org> > Cc: Christian Lindig <christian.lin...@citrix.com> > Cc: David Scott <d...@recoil.org> > Cc: "Roger Pau Monné" <roger....@citrix.com> > Cc: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com> > Cc: Kevin Tian <kevin.t...@intel.com> > > v10: > - Set flag in common code (which means clearing iommu_hap_pt_share if > HAP cannot be enabled or is configured out). > > v9: > - New in v9 > --- > tools/libxl/libxl.c | 2 ++ > tools/libxl/libxl.h | 7 +++++++ > tools/libxl/libxl_types.idl | 1 +
Acked-by: Wei Liu <w...@xen.org> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
