>>> On 10.05.17 at 06:08, <jgr...@suse.com> wrote: > When booted as pv-guest the p2m list presented by the Xen is already > mapped to virtual addresses. In dom0 case the hypervisor might make use > of 2M- or 1G-pages for this mapping. Unfortunately while being properly > aligned in virtual and machine address space, those pages might not be > aligned properly in guest physical address space. > > So when trying to obtain the guest physical address of such a page > pud_pfn() and pmd_pfn() must be avoided as those will mask away guest > physical address bits not being zero in this special case. > > Signed-off-by: Juergen Gross <jgr...@suse.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com> Perhaps worth Cc-ing stable@ ? Jan
