[Xen-devel] [PATCH 0 of 9] x86/mm: Fixes to sharing, paging and p2m

[Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>]

This patch series aggregates a number of fixes to different areas of mm:

Sharing:
 - Make sharing play nice with balloon
 - Make physmap manipulations deall correctly with shared pages
 - Make sharing debug calls use locked accessors and return useful information

Paging:
 - Eliminate a needless state in the paging state machine
 - Fix stats/accounting
 - Fix page type check when nominating or evicting a page

P2M:
This changes clear hurdles in advance of a fully-synchronized p2m
 - Eliminate possibility of deadlock in nested lookups
 - Reorder some locks taken by the sharing subsystem

Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>
Signed-off-by: Adin Scannell <adin@xxxxxxxxxxx>

 xen/arch/x86/mm.c               |    8 +-
 xen/arch/x86/mm/p2m-ept.c       |    3 +-
 xen/arch/x86/mm/p2m.c           |    7 +-
 xen/include/asm-x86/p2m.h       |    7 +-
 xen/arch/x86/mm/p2m.c           |    4 +-
 xen/arch/x86/hvm/emulate.c      |   35 ++---
 xen/arch/x86/mm/mem_sharing.c   |   28 ++--
 xen/include/asm-x86/p2m.h       |   91 ++++++++++++++++
 xen/arch/x86/mm/shadow/common.c |    3 +
 xen/arch/x86/mm/shadow/multi.c  |   18 +-
 xen/arch/x86/mm/p2m.c           |   21 +++-
 xen/common/memory.c             |   12 +-
 xen/arch/x86/mm/mem_sharing.c   |    6 +-
 xen/arch/x86/mm/p2m.c           |   12 +-
 xen/common/memory.c             |    2 +-
 xen/include/asm-x86/p2m.h       |    6 +-
 xen/arch/x86/mm/mem_sharing.c   |    7 +-
 xen/arch/x86/mm/mem_sharing.c   |  224 ++++++++++++++++++++-------------------
 18 files changed, 315 insertions(+), 179 deletions(-)

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