[PATCH v6 00/31] target-arm: Implement ARMv8.5-MemTag, user mode

[Richard Henderson]

Changes for v6:
  * Drop the change to probe_access.  The cpu_untagged_addr function
    isn't correct, since that's specifically for syscalls.  The uses
    of probe_access in target/arm/ are already done with clean addresses.
  * Move unlock_user comparison change from p19 to p18.

The only unreviewed patch is 19.


r~


Richard Henderson (31):
  tcg: Introduce target-specific page data for user-only
  linux-user: Introduce PAGE_ANON
  exec: Use uintptr_t for guest_base
  exec: Use uintptr_t in cpu_ldst.h
  exec: Improve types for guest_addr_valid
  linux-user: Check for overflow in access_ok
  linux-user: Tidy VERIFY_READ/VERIFY_WRITE
  bsd-user: Tidy VERIFY_READ/VERIFY_WRITE
  linux-user: Do not use guest_addr_valid for h2g_valid
  linux-user: Fix guest_addr_valid vs reserved_va
  exec: Introduce cpu_untagged_addr
  exec: Use cpu_untagged_addr in g2h; split out g2h_untagged
  linux-user: Explicitly untag memory management syscalls
  linux-user: Use guest_range_valid in access_ok
  exec: Rename guest_{addr,range}_valid to *_untagged
  linux-user: Use cpu_untagged_addr in access_ok; split out *_untagged
  linux-user: Move lock_user et al out of line
  linux-user: Fix types in uaccess.c
  linux-user: Handle tags in lock_user/unlock_user
  linux-user/aarch64: Implement PR_TAGGED_ADDR_ENABLE
  target/arm: Improve gen_top_byte_ignore
  target/arm: Use the proper TBI settings for linux-user
  linux-user/aarch64: Implement PR_MTE_TCF and PR_MTE_TAG
  linux-user/aarch64: Implement PROT_MTE
  target/arm: Split out syndrome.h from internals.h
  linux-user/aarch64: Pass syndrome to EXC_*_ABORT
  linux-user/aarch64: Signal SEGV_MTESERR for sync tag check fault
  linux-user/aarch64: Signal SEGV_MTEAERR for async tag check error
  target/arm: Add allocation tag storage for user mode
  target/arm: Enable MTE for user-only
  tests/tcg/aarch64: Add mte smoke tests

 bsd-user/qemu.h                     |   9 +-
 include/exec/cpu-all.h              |  47 ++++-
 include/exec/cpu_ldst.h             |  39 ++--
 include/exec/exec-all.h             |   2 +-
 linux-user/aarch64/target_signal.h  |   3 +
 linux-user/aarch64/target_syscall.h |  13 ++
 linux-user/qemu.h                   |  76 +++-----
 linux-user/syscall_defs.h           |   1 +
 target/arm/cpu-param.h              |   3 +
 target/arm/cpu.h                    |  32 ++++
 target/arm/internals.h              | 249 +------------------------
 target/arm/syndrome.h               | 273 ++++++++++++++++++++++++++++
 tests/tcg/aarch64/mte.h             |  60 ++++++
 accel/tcg/translate-all.c           |  32 +++-
 accel/tcg/user-exec.c               |  51 +++---
 bsd-user/main.c                     |   4 +-
 linux-user/aarch64/cpu_loop.c       |  38 +++-
 linux-user/elfload.c                |  18 +-
 linux-user/flatload.c               |   2 +-
 linux-user/hppa/cpu_loop.c          |  39 ++--
 linux-user/i386/cpu_loop.c          |   6 +-
 linux-user/i386/signal.c            |   5 +-
 linux-user/main.c                   |   4 +-
 linux-user/mmap.c                   |  86 +++++----
 linux-user/ppc/signal.c             |   4 +-
 linux-user/syscall.c                | 165 +++++++++++++----
 linux-user/uaccess.c                |  82 +++++++--
 target/arm/cpu.c                    |  25 ++-
 target/arm/helper-a64.c             |   4 +-
 target/arm/mte_helper.c             |  39 +++-
 target/arm/tlb_helper.c             |  15 +-
 target/arm/translate-a64.c          |  25 +--
 target/hppa/op_helper.c             |   2 +-
 target/i386/tcg/mem_helper.c        |   2 +-
 target/s390x/mem_helper.c           |   4 +-
 tests/tcg/aarch64/mte-1.c           |  28 +++
 tests/tcg/aarch64/mte-2.c           |  45 +++++
 tests/tcg/aarch64/mte-3.c           |  51 ++++++
 tests/tcg/aarch64/mte-4.c           |  45 +++++
 tests/tcg/aarch64/pauth-2.c         |   1 -
 tests/tcg/aarch64/Makefile.target   |   6 +
 tests/tcg/configure.sh              |   4 +
 42 files changed, 1122 insertions(+), 517 deletions(-)
 create mode 100644 target/arm/syndrome.h
 create mode 100644 tests/tcg/aarch64/mte.h
 create mode 100644 tests/tcg/aarch64/mte-1.c
 create mode 100644 tests/tcg/aarch64/mte-2.c
 create mode 100644 tests/tcg/aarch64/mte-3.c
 create mode 100644 tests/tcg/aarch64/mte-4.c

-- 
2.25.1