[PATCH v3 00/10] xen/arm: Handle correctly foreign mapping

[Julien Grall <julien.grall@linaro.org>]

Hello,

This patch series aims to fix "Failed to unmap" message in dom0 when a guest is
creating. Without this patch series, dom0 will leak memory each time a domain
is created. It should be considered as a blocker for Xen 4.4 release.

The series is based on pvh dom0 v6 patch series from Mukesh with patch #7
(http://lists.xenproject.org/archives/html/xen-devel/2013-12/msg01026.html)
replaced by the version V6.1
(http://lists.xenproject.org/archives/html/xen-devel/2013-12/msg01168.html)

    - Patch #1-2: prepare work for the others patches
    - Patch #3-6: add support for p2m type
    - Patch #7-9: handle correctly foreign mapping
    - Patch #10: it's not really part of this series. It adds support
    for read-only grant-mapping

All the patches can be found on this git:
    git clone -b map-foreign-v3 git://xenbits.xen.org/people/julieng/xen-unstable.git

Major changes since v2:
    - Rework relinquish p2m mapping to reuse existing code
    - Fixing typoes
    - Reordering code
    - Fixing separate compilation to allow bisection

For all the changes, see in each patch.

Sincerely yours,

Release-acked-by: George Dunlap <george.dunlap@eu.citrix.com>

Julien Grall (10):
  xen/arm: Introduce steps in domain_relinquish_resource
  xen/arm: move mfn_to_p2m_entry in arch/arm/p2m.c
  xen/arm: Implement p2m_type_t as an enum
  xen/arm: Store p2m type in each page of the guest
  xen/arm: p2m: Extend p2m_lookup parameters to retrieve the p2m type
  xen/arm: Retrieve p2m type in get_page_from_gfn
  xen/arm: Implement xen_rem_foreign_from_p2m
  xen/arm: Add relinquish_p2m_mapping to remove reference on every
    mapped page
  xen/arm: Set foreign page type to p2m_map_foreign
  xen/arm: grant-table: Support read-only mapping

 xen/arch/arm/domain.c        |   45 +++++++++++--
 xen/arch/arm/mm.c            |   39 ++++++-----
 xen/arch/arm/p2m.c           |  151 +++++++++++++++++++++++++++++++++++++-----
 xen/arch/arm/traps.c         |    6 +-
 xen/include/asm-arm/domain.h |    9 +++
 xen/include/asm-arm/p2m.h    |   74 +++++++++++++++++----
 xen/include/asm-arm/page.h   |   24 +------
 7 files changed, 269 insertions(+), 79 deletions(-)

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1.7.10.4