On 21/11/14 15:38, Jan Beulich wrote: >>>> On 21.11.14 at 16:01, <andrew.coop...@citrix.com> wrote: >> On 21/11/14 14:54, Jan Beulich wrote: >>>>>> On 21.11.14 at 15:39, <jgr...@suse.com> wrote: >>>> Trying to do PCI-passthrough with a 32-bit pv-domain I passed the >>>> wrong device to the domain. The MMIO address was too large for a >>>> MFN of a 32-bit system (it was 380003200000-3800036fffff). >>>> >>>> Instead of rejecting the operation Xen tried to perform it resulting >>>> in a (quite understandable) failure in the domU. >>>> >>>> I think either the hypervisor or the tools should refuse to do >>>> PCI-passthrough in this case. >>> What's wrong with this large an address? >> >> It is wider than 44 bits, so doesn't fit in a 32bit pfn for p2m/m2p >> update operations. > > MMIO regions don't go into these tables.
They do in upstream kernels. David _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
