[PATCH v3 00/14] xen/arm: Properly disable M2P on Arm

From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xenproject.org
Cc: "Stefano Stabellini" <sstabellini@kernel.org>,
	andrii_anisov@epam.com, "Wei Liu" <wl@xen.org>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
	"George Dunlap" <george.dunlap@eu.citrix.com>,
	"Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Tim Deegan" <tim@xen.org>, "Gang Wei" <gang.wei@intel.com>,
	oleksandr_tyshchenko@epam.com,
	"Julien Grall" <julien.grall@arm.com>,
	"Tamas K Lengyel" <tamas@tklengyel.com>,
	"Jan Beulich" <jbeulich@suse.com>,
	"Shane Wang" <shane.wang@intel.com>,
	"Ian Jackson" <ian.jackson@eu.citrix.com>,
	"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [PATCH v3 00/14] xen/arm: Properly disable M2P on Arm
Date: Mon,  3 Jun 2019 17:03:36 +0100	[thread overview]
Message-ID: <20190603160350.29806-1-julien.grall@arm.com> (raw)

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/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/x86: p2m: Remove duplicate error message in p2m_pt_audit_p2m()
  xen/x86: p2m: Rework printk format in audit_p2m()
  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/x86/Kconfig                |   1 +
 xen/arch/x86/cpu/mcheck/mcaction.c  |  20 +++----
 xen/arch/x86/domain.c               |  34 ++++++------
 xen/arch/x86/mm.c                   | 102 ++++++++++++++++++------------------
 xen/arch/x86/mm/mem_sharing.c       |  19 +++----
 xen/arch/x86/mm/p2m-pod.c           |   4 +-
 xen/arch/x86/mm/p2m-pt.c            |  35 ++++++-------
 xen/arch/x86/mm/p2m.c               |  71 +++++++++++++------------
 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                |   7 ++-
 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                 |   9 +++-
 xen/common/grant_table.c            |   4 +-
 xen/common/memory.c                 |   4 ++
 xen/common/page_alloc.c             |  28 +++++-----
 xen/common/sysctl.c                 |  14 ++---
 xen/drivers/passthrough/iommu.c     |  15 ++++--
 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            |  25 +++------
 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         |   6 +++
 xen/include/xen/domain.h            |  12 +++++
 xen/include/xen/mm.h                |  20 +++++--
 35 files changed, 344 insertions(+), 295 deletions(-)

-- 
2.11.0

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