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[Xen-devel,00/14] xen/arm: Properly disable M2P on Arm.

Message ID 20190507151458.29350-1-julien.grall@arm.com
Headers show
Series xen/arm: Properly disable M2P on Arm. | expand

Message

Julien Grall May 7, 2019, 3:14 p.m. UTC 
Hi all,

Arm never supported a M2P yet there are some helpers implemented to deal with
the common code. However, the implementation of mfn_to_gmfn is completely
bogus.

This series aims to properly disable the M2P on Arm. See patch #8 for the
rationale regarding the lack of M2P on Arm.

While looking at the code, I also continued to convert some code to use
typesafe MFN/GFN.

Cheers,

Julien Grall (14):
  xen/arm: Use mfn_to_pdx instead of pfn_to_pdx when possible
  xen/x86: Constify the parameter "d" in mfn_to_gfn
  xen/x86: Make mfn_to_gfn typesafe
  xen/x86: Use mfn_to_gfn rather than mfn_to_gmfn
  xen/grant-table: Make arch specific macros typesafe
  xen: Convert hotplug page function to use typesafe MFN
  xen: Convert is_xen_fixed_mfn to use typesafe MFN
  xen: Convert is_xen_heap_mfn to use typesafe MFN
  xen: Introduce HAS_M2P config and use to protect mfn_to_gmfn call
  xen: Remove mfn_to_gmfn macro
  xen/x86: mm: Re-implement set_gpfn_from_mfn() as a static inline
    function
  xen/x86: pv: Convert update_intpte() to use typesafe MFN
  xen/mm: Convert {s, g}et_gpfn_from_mfn() to use typesafe MFN
  xen/mm: Provide dummy M2P-related helpers when !CONFIG_HAVE_M2P

 xen/arch/arm/mm.c                   |   2 +-
 xen/arch/x86/Kconfig                |   1 +
 xen/arch/x86/cpu/mcheck/mcaction.c  |  20 ++++---
 xen/arch/x86/domain.c               |  34 ++++++-----
 xen/arch/x86/mm.c                   | 115 ++++++++++++++++++------------------
 xen/arch/x86/mm/mem_sharing.c       |  19 +++---
 xen/arch/x86/mm/p2m-pod.c           |   4 +-
 xen/arch/x86/mm/p2m-pt.c            |  37 ++++++------
 xen/arch/x86/mm/p2m.c               |  70 +++++++++++-----------
 xen/arch/x86/mm/paging.c            |   4 +-
 xen/arch/x86/mm/shadow/common.c     |  31 ++++++----
 xen/arch/x86/mm/shadow/multi.c      |   6 +-
 xen/arch/x86/pv/dom0_build.c        |   6 +-
 xen/arch/x86/pv/emul-priv-op.c      |   4 +-
 xen/arch/x86/pv/grant_table.c       |   6 +-
 xen/arch/x86/pv/mm.h                |   6 +-
 xen/arch/x86/pv/ro-page-fault.c     |   2 +-
 xen/arch/x86/tboot.c                |   2 +-
 xen/arch/x86/x86_64/traps.c         |  41 ++++++-------
 xen/common/Kconfig                  |   3 +
 xen/common/domctl.c                 |   2 +-
 xen/common/grant_table.c            |   4 +-
 xen/common/memory.c                 |   6 +-
 xen/common/page_alloc.c             |  28 ++++-----
 xen/common/sysctl.c                 |  14 ++---
 xen/drivers/passthrough/iommu.c     |  13 ++--
 xen/drivers/passthrough/x86/iommu.c |  16 ++---
 xen/include/asm-arm/domain.h        |   5 ++
 xen/include/asm-arm/grant_table.h   |  12 ++--
 xen/include/asm-arm/mm.h            |  31 +++-------
 xen/include/asm-x86/grant_table.h   |  19 +++---
 xen/include/asm-x86/mm.h            |  46 +++++++--------
 xen/include/asm-x86/p2m.h           |   6 +-
 xen/include/public/domctl.h         |   4 ++
 xen/include/xen/domain.h            |   8 +++
 xen/include/xen/mm.h                |  20 ++++++-
 36 files changed, 344 insertions(+), 303 deletions(-)