[Qemu-devel] [PATCH v6 00/37] AArch64 system emulation

[Peter Maydell]

Here's v5 of the AArch64 system emulation patchset.
Still missing/TODO:
 * SMP support (needs PSCI emulation in QEMU; being prototyped)
 * save/restore (I have a patch which adds this but I think it will
   look better if we consolidate AArch32 cpsr and AArch64 pstate
   handling)
but both of these I think are best done once this main series
is committed to master.

The changes v5->v6 are pretty minor, and these patches have
been kicking around onlist for a long time, so I plan to
put these in a pull request pretty much as soon as we reopen
trunk after 2.0 releases. Last chance for review!


Changes v5->v6:
 * add extract64() when putting together 32-bit CBAR value
 * be consistent about int vs bool for 1 bit fields in the
   syn_insn_abort/syn_data_abort functions
 * added some FIXMEs about inaccurate syndrome info for A32/T32
   Neon unallocated insns when FP is disabled
 * decided that using a15mpcore_priv in the virt machine is actually
   the best approach, and added a suitable comment
Changes v4->v5:
 * new patches:
   + MVFR registers
   + various extra system registers
   + don't expose wildcards for ARMv8
   + make A15's CBAR R/O
   + support interprocessing in set_pc
 * minor tweaks per review (I haven't always taken the review
   suggestion; see mail threads on the previous version of the
   patch series)
 * DC ZVA: use helper_ret_stb_mmu
           make tlb_vaddr_to_host take param for access type
 * NB: I didn't make gen_exception and gen_exception_internal shared
   in patch 5: I think keeping the A64 and A32 decoders independent
   is preferable
 * have syn_insn_abort and syn_data_abort set the syndrome bit
   for 'exception to same level' rather than making caller do it
Changes v3->v4:
 * reviewed patches from bottom of stack got committed to master
 * new patches at top of stack
 * addressed review issues on v8 mmu translation patch and DAIF patch

thanks
-- PMM


Peter Maydell (33):
  target-arm: Split out private-to-target functions into internals.h
  target-arm: Implement AArch64 DAIF system register
  target-arm: Define exception record for AArch64 exceptions
  target-arm: Provide correct syndrome information for cpreg access
    traps
  target-arm: Add support for generating exceptions with syndrome
    information
  target-arm: A64: Correctly fault FP/Neon if CPACR.FPEN set
  target-arm: A64: Add assertion that FP access was checked
  target-arm: Fix VFP enables for AArch32 EL0 under AArch64 EL1
  target-arm: Don't mention PMU in debug feature register
  target-arm: A64: Implement DC ZVA
  target-arm: Use dedicated CPU state fields for ARM946 access bit
    registers
  target-arm: Add AArch64 ELR_EL1 register.
  target-arm: Implement SP_EL0, SP_EL1
  target-arm: Implement AArch64 SPSR_EL1
  target-arm: Move arm_log_exception() into internals.h
  target-arm: Implement ARMv8 MVFR registers
  target-arm: Add Cortex-A57 processor
  hw/arm/virt: Add support for Cortex-A57
  target-arm: Implement AArch64 views of AArch32 ID registers
  target-arm: Implement AArch64 view of CONTEXTIDR
  target-arm: Implement AArch64 view of ACTLR
  target-arm: Implement ISR_EL1 register
  target-arm: Remove THUMB2EE feature from AArch64 'any' CPU
  target-arm: Don't expose wildcard ID register definitions for ARMv8
  target-arm: Replace wildcarded cpreg definitions with precise ones for
    ARMv8
  target-arm: Implement auxiliary fault status registers
  target-arm: Implement AArch64 address translation operations
  target-arm: Implement RVBAR register
  target-arm: Implement Cortex-A57 implementation-defined system
    registers
  target-arm: Implement CBAR for Cortex-A57
  target-arm: Make Cortex-A15 CBAR read-only
  target-arm: Handle the CPU being in AArch32 mode in the AArch64 set_pc
  target-arm: Dump 32-bit CPU state if 64 bit CPU is in AArch32

Rob Herring (4):
  target-arm: Provide syndrome information for MMU faults
  target-arm: Add v8 mmu translation support
  target-arm: Implement AArch64 views of fault status and data registers
  target-arm: Implement AArch64 EL1 exception handling

 hw/arm/virt.c               |   8 +
 include/exec/softmmu_exec.h |  52 +++
 linux-user/main.c           |  56 ++-
 target-arm/cpu-qom.h        |  10 +-
 target-arm/cpu.c            |  30 +-
 target-arm/cpu.h            |  81 +++--
 target-arm/cpu64.c          | 115 ++++++-
 target-arm/helper-a64.c     |  75 ++++
 target-arm/helper.c         | 809 +++++++++++++++++++++++++++++++++-----------
 target-arm/helper.h         |   7 +-
 target-arm/internals.h      | 267 +++++++++++++++
 target-arm/kvm32.c          |  19 +-
 target-arm/kvm64.c          |  71 +++-
 target-arm/machine.c        |  13 +-
 target-arm/op_helper.c      |  92 ++++-
 target-arm/translate-a64.c  | 441 +++++++++++++++++++++---
 target-arm/translate.c      | 195 ++++++++---
 target-arm/translate.h      |  23 +-
 18 files changed, 1987 insertions(+), 377 deletions(-)
 create mode 100644 target-arm/internals.h

-- 
1.9.1