[Xen-devel] [PATCH 0 of 2] x86/mm: Two hypervisor paging fixes

[Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>]

- Disallow for good paging_prep: it's unsafe
- Allow paging in of a page in paged-out state. This shortcuts the 
  need to reference the page and trigger a populate event, thus saving
  a complete control stack round-trip.

Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>
Acked-by: Tim Deegan <tim@xxxxxxx>

 xen/arch/x86/mm/p2m.c |  15 +++++++++++----
 xen/arch/x86/mm/p2m.c |   4 ++++
 2 files changed, 15 insertions(+), 4 deletions(-)

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