[PATCH for-4.5 v10 00/19] 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 moves the mem_access and mem_event codebase
into Xen common, performs some code cleanup and architecture specific division
of components, then 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 is based on staging and has been fully tested on both
an Arndale board and on Intel hardware.

This is version 10 of the series as two patches have already been sent as v9. I hope
this helps in the review process to see which patches are the latest.

This PATCH series is also available at:
https://github.com/tklengyel/xen/tree/arm_memaccess10

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

Tamas K Lengyel (18):
  xen: Relocate mem_access and mem_event into common.
  xen: Relocate struct npfec definition into common
  xen: Relocate p2m_access_t into common and swap the order
  xen: Relocate p2m_mem_access_resume to mem_access common
  xen: Relocate set_access_required domctl into common
  xen: Relocate mem_event_op domctl and access_op memop into common.
  xen/mem_event: Clean out superfluous white-spaces
  xen/mem_event: Relax error condition on debug builds
  xen/mem_event: Abstract architecture specific sanity checks
  xen/mem_access: Abstract architecture specific sanity check
  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: Temporarily disable mem_access for hypervisor access
  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

 MAINTAINERS                         |   6 +
 config/arm32.mk                     |   1 +
 config/arm64.mk                     |   1 +
 config/x86_32.mk                    |   4 +
 config/x86_64.mk                    |   4 +
 tools/libxc/xc_dom_arm.c            |   6 +-
 tools/tests/xen-access/Makefile     |   9 +-
 tools/tests/xen-access/xen-access.c |  79 ++--
 xen/Rules.mk                        |   3 +
 xen/arch/arm/guestcopy.c            |  61 +++
 xen/arch/arm/mm.c                   |   2 +-
 xen/arch/arm/p2m.c                  | 549 ++++++++++++++++++++++----
 xen/arch/arm/traps.c                |  58 ++-
 xen/arch/x86/domctl.c               |  24 +-
 xen/arch/x86/hvm/hvm.c              |  63 +--
 xen/arch/x86/hvm/vmx/vmcs.c         |   8 +-
 xen/arch/x86/mm/Makefile            |   2 -
 xen/arch/x86/mm/hap/nested_ept.c    |   6 +-
 xen/arch/x86/mm/hap/nested_hap.c    |   8 +-
 xen/arch/x86/mm/mem_access.c        | 133 -------
 xen/arch/x86/mm/mem_event.c         | 716 ----------------------------------
 xen/arch/x86/mm/mem_paging.c        |   2 +-
 xen/arch/x86/mm/mem_sharing.c       |   4 +-
 xen/arch/x86/mm/p2m-pod.c           |   8 +-
 xen/arch/x86/mm/p2m-pt.c            |  10 +-
 xen/arch/x86/mm/p2m.c               | 144 ++++---
 xen/arch/x86/x86_64/compat/mm.c     |   8 +-
 xen/arch/x86/x86_64/mm.c            |   8 +-
 xen/common/Makefile                 |   2 +
 xen/common/compat/memory.c          |   5 +
 xen/common/domain.c                 |   1 +
 xen/common/domctl.c                 |  24 ++
 xen/common/mem_access.c             | 159 ++++++++
 xen/common/mem_event.c              | 742 ++++++++++++++++++++++++++++++++++++
 xen/common/memory.c                 |  72 +++-
 xen/include/asm-arm/domain.h        |   1 +
 xen/include/asm-arm/mm.h            |   1 -
 xen/include/asm-arm/p2m.h           |  60 +++
 xen/include/asm-arm/processor.h     |  13 +-
 xen/include/asm-x86/hvm/hvm.h       |   8 +-
 xen/include/asm-x86/mem_access.h    |  39 --
 xen/include/asm-x86/mem_event.h     |  82 ----
 xen/include/asm-x86/mm.h            |  23 --
 xen/include/asm-x86/p2m.h           |  50 +--
 xen/include/xen/mem_access.h        |  65 ++++
 xen/include/xen/mem_event.h         | 143 +++++++
 xen/include/xen/mm.h                |  27 ++
 xen/include/xen/p2m-common.h        |  29 ++
 xen/include/xsm/dummy.h             |  26 +-
 xen/include/xsm/xsm.h               |  29 +-
 xen/xsm/dummy.c                     |   7 +-
 xen/xsm/flask/hooks.c               |  33 +-
 52 files changed, 2197 insertions(+), 1371 deletions(-)
 delete mode 100644 xen/arch/x86/mm/mem_access.c
 delete mode 100644 xen/arch/x86/mm/mem_event.c
 create mode 100644 xen/common/mem_access.c
 create mode 100644 xen/common/mem_event.c
 delete mode 100644 xen/include/asm-x86/mem_access.h
 delete mode 100644 xen/include/asm-x86/mem_event.h
 create mode 100644 xen/include/xen/mem_access.h
 create mode 100644 xen/include/xen/mem_event.h

-- 
2.1.0