[PATCH v5 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.

Compare to the previous version, I have removed all specific modification
in common code (ie p2m foreing check).

    - 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

For all the changes, see in each patch.

Sincerely yours,
Release-acked-by: George Dunlap <george.dunlap@eu.citrix.com>
Cc: George Dunlap <george.dunlap@eu.citrix.com>
Cc: Mukesh Rathor <mukesh.rathor@oracle.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: Handle remove foreign mapping
  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            |   50 +++++++++-----
 xen/arch/arm/p2m.c           |  148 +++++++++++++++++++++++++++++++++++++-----
 xen/arch/arm/traps.c         |    6 +-
 xen/include/asm-arm/domain.h |    9 +++
 xen/include/asm-arm/p2m.h    |   80 ++++++++++++++++++++---
 xen/include/asm-arm/page.h   |   24 +------
 7 files changed, 287 insertions(+), 75 deletions(-)

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1.7.10.4