Matthew Fioravante
2011-Mar-11 22:48 UTC
[Xen-devel] [PATCH 5/12] VTPM mini-os: mfn_is_ram check disable
Currently when mapping io memory regions into a mini-os domain a check is performed to make sure the memory region really is io memory. While this is a good idea in practice, the code doing the check fails if you have over 4GB since there may be system memory mapped after the io memory mappings. This patch disables the check and turns it into a stub. It is required for tpm passthrough to the vtpm manager domain. Signed off by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Samuel Thibault
2011-Mar-12 00:31 UTC
Re: [Xen-devel] [PATCH 5/12] VTPM mini-os: mfn_is_ram check disable
Matthew Fioravante, le Fri 11 Mar 2011 17:48:00 -0500, a écrit :> Currently when mapping io memory regions into a mini-os domain a check > is performed to make sure the memory region really is io memory. While > this is a good idea in practice, the code doing the check fails if you > have over 4GB since there may be system memory mapped after the io > memory mappings. > > This patch disables the check and turns it into a stub. It is required > for tpm passthrough to the vtpm manager domain. > > Signed off by: Matthew Fioravante <matthew.fioravante@jhuapl.edu>Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel