>>> On 18.09.17 at 17:31, <paul.durr...@citrix.com> wrote: > Certain memory resources associated with a guest are not necessarily > present in the guest P2M and so are not necessarily available to be > foreign-mapped by a tools domain unless they are inserted, which risks > shattering a super-page mapping.
Btw., I'm additionally having trouble seeing this shattering of a superpage: For one, xc_core_arch_get_scratch_gpfn() could be a little less simplistic. And then even with the currently chosen value (outside of the range of valid GFNs at that point in time) there shouldn't be a larger page to be shattered, as there should be no mapping at all at that index. But perhaps I'm just blind and don't see the obvious ... Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
