[PATCH for-4.5 v11 0/9] Mem_event and mem_access for ARM

[Tamas K Lengyel <tklengyel@sec.in.tum.de>]

The ARM virtualization extension provides 2-stage paging, a similar mechanisms
to Intel's EPT, which can be used to trace the memory accesses performed by
the guest systems. This series sets up the necessary infrastructure in the ARM code
to deliver the event on R/W/X traps. Finally, we turn on the compilation of
mem_access and mem_event on ARM and perform the necessary changes to the tools side.

This version of the series has been fully tested and is functional on both an
Arndale board and on Intel hardware.

This version is based on staging as to skip the patches that have already
been merged.

This PATCH series is also available at:
https://github.com/tklengyel/xen/tree/arm_memaccess11

Julien Grall (1):
  xen/arm: Implement domain_get_maximum_gpfn

Tamas K Lengyel (8):
  xen/arm: p2m changes for mem_access support
  xen/arm: Add p2m_set_permission and p2m_shatter_page helpers.
  xen/arm: Data abort exception (R/W) mem_events.
  xen/arm: Allow hypervisor access to mem_access protected pages
  xen/arm: Instruction prefetch abort (X) mem_event handling
  xen/arm: Enable the compilation of mem_access and mem_event on ARM.
  tools/libxc: Allocate magic page for mem access on ARM
  tools/tests: Enable xen-access on ARM

 config/arm32.mk                     |   1 +
 config/arm64.mk                     |   1 +
 tools/libxc/xc_dom_arm.c            |   6 +-
 tools/tests/xen-access/Makefile     |   9 +-
 tools/tests/xen-access/xen-access.c |  79 +++--
 xen/arch/arm/guestcopy.c            | 120 +++++++-
 xen/arch/arm/mm.c                   |   2 +-
 xen/arch/arm/p2m.c                  | 558 +++++++++++++++++++++++++++++++-----
 xen/arch/arm/traps.c                |  57 +++-
 xen/include/asm-arm/domain.h        |   1 +
 xen/include/asm-arm/p2m.h           |  41 ++-
 xen/include/asm-arm/processor.h     |  13 +-
 xen/include/xsm/dummy.h             |  26 +-
 xen/include/xsm/xsm.h               |  29 +-
 xen/xsm/dummy.c                     |   7 +-
 xen/xsm/flask/hooks.c               |  33 ++-
 16 files changed, 833 insertions(+), 150 deletions(-)

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2.1.0