[Qemu-devel] [PATCH v1 00/22] target-arm: Preparations for A64 EL2 and 3

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

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

Hi,

I've been doing some work on modeling parts of EL2 and 3 + some of
the system-wide virtualization features for ARMv8. A lot is missing
but I've got a series with enough to for example run KVM A64 guests
on top of EL3 firmware inside emulated QEMU A64 VMs.
I'm working on cleaning things up and plan to send patches and publish
things as I go.

This series does a first round of preparations. Most of it has little
or no user visible impact as the EL2 and 3 features remain disabled.

For the arrayification of the various EL regs that do not exist for
EL0, I've used index macros. I don't really have a preference here,
so if you have better/less ugly ideas or preferences I'm happy to change
the pattern (getters/setters or whatever).

Happy to address any comments people may have.

Cheers,
Edgar

Edgar E. Iglesias (22):
  target-arm: A64: Add friendly logging of PSTATE A and I flags
  target-arm: Make elr_el1 an array
  target-arm: Make esr_el1 an array
  target-arm: c12_vbar -> vbar_el[]
  target-arm: Add arm_el_to_mmu_idx()
  target-arm: Move get_mem_index to translate.h
  target-arm: A64: Add SP entries for EL2 and 3
  target-arm: A64: Add ELR entries for EL2 and 3
  target-arm: Add SPSR entries for EL2/HYP and EL3/MON
  target-arm: A64: Introduce arm64_banked_spsr_index()
  target-arm: Add a feature flag for EL2
  target-arm: Add a feature flag for EL3
  target-arm: Register EL2 versions of ELR and SPSR
  target-arm: Register EL3 versions of ELR and SPSR
  target-arm: A64: Forbid ERET to increase the EL
  target-arm: A64: Forbid ERET to unimplemented ELs
  target-arm: A64: Generalize ERET to various ELs
  target-arm: A64: Generalize update_spsel for the various ELs
  target-arm: Add storage for VBAR_EL2 and 3
  target-arm: Make vbar_write writeback to any CPREG
  target-arm: A64: Register VBAR_EL2
  target-arm: A64: Register VBAR_EL3

 target-arm/cpu.h           | 38 +++++++++++++++++++++-----
 target-arm/helper-a64.c    | 15 ++++++-----
 target-arm/helper.c        | 67 +++++++++++++++++++++++++++++++++++++++-------
 target-arm/internals.h     | 25 ++++++++++++-----
 target-arm/kvm64.c         |  4 +--
 target-arm/machine.c       | 12 ++++-----
 target-arm/op_helper.c     | 19 ++++++++-----
 target-arm/translate-a64.c | 13 +++------
 target-arm/translate.h     |  5 ++++
 9 files changed, 145 insertions(+), 53 deletions(-)

-- 
1.8.3.2