[Xen-devel] [PATCH v4 0/7] xen/arm: Add support for mapping mmio-sram nodes into dom0

["Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxx>]

From: "Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxxx>

This series adds support for mapping mmio-sram nodes into dom0
as normal uncached MEMORY with RW perms.

If the no-memory-wc prop is present in the DTB node, we create
DEVICE RW mappings instead.

Comments welcome!

Best regards,
Edgar

ChangeLog:

v3 -> v4:
* Rename p2m_mmio_direct_nc -> p2m_mmio_direct_dev
* Rename p2m_mem_nc p2m_mmio_direct_nc
* Make p2m_mmio_direct_nc non-executable to match p2m_mmio_direct_c
* Fix typos in comments regarding shareability
* Add reference to ARMv8 specs for outer sharability attr
* Add comment describing map_regions_p2mt
* Mention the p2m type inheritance in the commit msg of path #6

v2 -> v3:
* Drop RFC
* Add comment on outer-shareable choice for non-cached mem
* Spellfix existance -> existence
* Add comment on props usage
* Props matching now only supports a single property
* Dropped p2m_access in plumbing for mapping attributes
* Rename un/map_regions to un/map_regions_p2mt
* Add path to mmio-sram device-tree bindings docs in commit msg
* Add a comment on inheriting parent mem attributes
* Dropped the mmio-sram bus

v1 -> v2
* Replace the .map method with a list of match -> map attributes
* Handle no-memory-wc by mapping as DEVICE RW
* Generalize map_regions_rw_cache instead of adding new functions

Edgar E. Iglesias (7):
  xen/arm: p2m: Rename p2m_mmio_direct_nc -> p2m_mmio_direct_dev
  xen/arm: p2m: Add support for normal non-cacheable memory
  xen/arm: Rename and generalize un/map_regions_rw_cache
  xen/device-tree: Add __DT_MATCH macros without braces
  xen/device-tree: Make dt_match_node match props
  xen/arm: domain_build: Plumb for different mapping attributes
  xen/arm: Map mmio-sram nodes as un-cached memory

 xen/arch/arm/domain_build.c   | 90 +++++++++++++++++++++++++++++++++----------
 xen/arch/arm/p2m.c            | 42 ++++++++++++++------
 xen/common/device_tree.c      |  5 ++-
 xen/include/asm-arm/p2m.h     | 24 +++++++-----
 xen/include/asm-arm/page.h    |  1 +
 xen/include/xen/device_tree.h | 20 ++++++++--
 6 files changed, 136 insertions(+), 46 deletions(-)

-- 
2.7.4


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