>>> On 23.12.14 at 07:52, <kevin.t...@intel.com> wrote: >> From: Jan Beulich [mailto:jbeul...@suse.com] >> Sent: Friday, December 19, 2014 7:26 PM >> >> This can (and will) be legitimately the case when sharing page tables >> with EPT (more of a problem before p2m_access_rwx became zero, but >> still possible even now when other than that is the default for a >> guest), leading to an unconditional crash (in print_vtd_entries()) >> when a DMA remapping fault occurs. > > could you elaborate the scenarios when bits 52+ are non-zero?
This happens with shared page tables and a non-zero access type. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
