[Qemu-devel] [PATCH v4 00/13] arm: Steps towards EL2 support round 5

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

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

Hi,

Another round of patches towards EL2 support. This one adds partial
support for 2-stage MMU. The AArch32/ARMv7 support is untested.

Some of the details of error reporting are intentionally missing, I
was thinking to add those incrementally as they get quite involved
(e.g the register target and memory access size).

Comments welcome!

Best regards,
Edgar

v3 -> v4:
* Introduce inputsize to simplify and better match ref manuals
* Rename granule_sz to stride to better match ref manuals
* Add support for AArch32 negative S2 t0sz
* Add support for computing the AArch32 S2 PTW starting level.
* Add support for trapping on bad S2 starting levels

v2 -> v3:
* Prettify comments for ARMMMUFaultInfo
* Add S2 translation for 32bit S1 PTWs
* Add more comments to S2 PTW starting level computation.

v1 -> v2:
* Fix HPFAR_EL2 access checks
* Prettify computation of starting level for S2 PTW
* Improve description of ap argument to get_S2prot
* Fix EXEC protection in get_S2prot
* Improve comments on S2 PTW attribute extraction
* Add comment describing ARMMMUFaultInfo

Edgar E. Iglesias (13):
  target-arm: Add HPFAR_EL2
  target-arm: lpae: Make t0sz and t1sz signed integers
  target-arm: Add support for AArch32 S2 negative t0sz
  target-arm: lpae: Replace tsz with computed inputsize
  target-arm: lpae: Rename granule_sz to stride
  target-arm: Add computation of starting level for S2 PTW
  target-arm: Add support for S2 page-table protection bits
  target-arm: Avoid inline for get_phys_addr
  target-arm: Add ARMMMUFaultInfo
  target-arm: Add S2 translation to 64bit S1 PTWs
  target-arm: Add S2 translation to 32bit S1 PTWs
  target-arm: Route S2 MMU faults to EL2
  target-arm: Add support for S1 + S2 MMU translations

 target-arm/cpu.h       |   1 +
 target-arm/helper.c    | 375 ++++++++++++++++++++++++++++++++++++++++---------
 target-arm/internals.h |  40 +++++-
 target-arm/op_helper.c |  17 ++-
 4 files changed, 361 insertions(+), 72 deletions(-)

-- 
1.9.1