[Qemu-devel] [PATCH v2 0/8] arm: Steps towards EL2 support round 5

[Edgar E. Iglesias]

From: "Edgar E. Iglesias" <address@hidden>

Hi,

Another round of patches towards EL2 support. This one adds partial
support for 2-stage MMU for AArch64. I've marked it RFC because I
expect a few iterations. Once we can settle on the approach I'll
add the AArch32 support (changes for arm_ldl_ptw etc). I've probably
missed alot of details aswell.

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).

Some of the patches at the start of the series might be good already,
please pick them up if you agree Peter!

Comments welcome!

Best regards,
Edgar

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

Edgar E. Iglesias (8):
  target-arm: Add HPFAR_EL2
  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 support for S1 PTW
  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    | 216 ++++++++++++++++++++++++++++++++++++++++---------
 target-arm/internals.h |  11 ++-
 target-arm/op_helper.c |  17 ++--
 4 files changed, 200 insertions(+), 45 deletions(-)

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1.9.1