[PATCH v3 0/5] xen/arm: Add option to optionally disable trapping on unmapped acceses

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

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

This follows up on the virtio-pci discussion and adds a per-domain
option to select the behaviour of accesses to unmapped address ranges.
The new option is trap_unmapped_accesses, it's general but for now
only implemented for ARM.

I'm happy with any name, so if you have better ideas please suggest them!

I've included regenerated golang bindings as a separate patch.
We can drop it if it's not needed.

Thanks,
Edgar

ChangeLog:

v2 -> v3:
* Reword descriptions to clarify reads of all bits as ones.
* Use GENMASK as GENMASK_ULL not needed
* Style fix in if/else
* Regenerate golang bindings
* Update ocaml bindings

v1 -> v2:
* Rename trap_unmapped_mmio to trap_unmapped_accesses
* Generalize to allow other archs to later support this option
* Change dom0less DT binding from boolean to integer
* Remove changes to autogenerated go bindings

Edgar E. Iglesias (5):
  xen/arm: Add way to disable traps on accesses to unmapped addresses
  xen/arm: dom0less: Add trap-unmapped-accesses
  tools/arm: Add the trap_unmapped_accesses xl config option
  tools/ocaml: Update bindings for CDF_TRAP_UNMAPPED_ACCESSES
  tools/golang: Regenerate bindings for trap_unmapped_accesses

 docs/man/xl.cfg.5.pod.in              |  9 +++++++
 docs/misc/arm/device-tree/booting.txt | 10 ++++++++
 tools/golang/xenlight/helpers.gen.go  |  6 +++++
 tools/golang/xenlight/types.gen.go    |  1 +
 tools/libs/light/libxl_arm.c          |  3 +++
 tools/libs/light/libxl_create.c       |  3 +++
 tools/libs/light/libxl_types.idl      |  1 +
 tools/libs/light/libxl_x86.c          |  6 +++++
 tools/ocaml/libs/xc/xenctrl.ml        |  1 +
 tools/ocaml/libs/xc/xenctrl.mli       |  1 +
 tools/xl/xl_parse.c                   |  3 +++
 xen/arch/arm/dom0less-build.c         | 10 ++++++++
 xen/arch/arm/domain.c                 |  3 ++-
 xen/arch/arm/domain_build.c           |  3 ++-
 xen/arch/arm/io.c                     | 37 +++++++++++++++++++++++++--
 xen/common/domain.c                   |  3 ++-
 xen/include/public/domctl.h           |  4 ++-
 17 files changed, 98 insertions(+), 6 deletions(-)

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2.43.0