[Qemu-devel] [PATCH 0/7] Fix some more EL3 things and enable EL3 for AArch64

[Peter Maydell]

This series fixes a couple more minor EL3 related missing parts,
and then turns on EL3 for AArch64 CPUs. The minor fixed things are:
 * implement MDCR_EL3 and SDCR
 * trap Secure EL1 accesses to SCR and MVBAR to EL3
 * add EL3 support to the code that decides whether to generate
   debug exceptions
 * fix corner cases in our NSACR handling

To do the NSACR fix I had to change the CPAccessFn API to take
an extra bool to tell the function if the access is a read or write.

The only major thing I know of that we're missing for 64-bit EL3
is that we need to go through the "EL3 configurable controls" section
of the ARM ARM to make sure we trap on the right things. But
(a) I expect we're missing some for 32-bit as well and (b) this
is enough to run some real-world EL3 code (ARM Trusted Firmware
and OP-TEE), so it makes sense to me to turn on EL3 now.


thanks
-- PMM

Peter Maydell (7):
  target-arm: Fix typo in comment in arm_is_secure_below_el3()
  target-arm: Implement MDCR_EL3 and SDCR
  target-arm: Use access_trap_aa32s_el1() for SCR and MVBAR
  target-arm: Update arm_generate_debug_exceptions() to handle EL2/EL3
  target-arm: Add isread parameter to CPAccessFns
  target-arm: Implement NSACR trapping behaviour
  target-arm: Enable EL3 for Cortex-A53 and Cortex-A57

 target-arm/cpu.h           |  55 +++++++++++++--
 target-arm/cpu64.c         |   2 +
 target-arm/helper.c        | 171 ++++++++++++++++++++++++++++++++++++---------
 target-arm/helper.h        |   2 +-
 target-arm/op_helper.c     |   5 +-
 target-arm/translate-a64.c |   6 +-
 target-arm/translate.c     |   7 +-
 7 files changed, 200 insertions(+), 48 deletions(-)

-- 
1.9.1