[v7,00/21] Add LoongArch linux-user emulation support

Message

gaosong Oct. 18, 2021, 12:47 p.m. UTC

Hi,

This series only support linux-user emulation.
More about LoongArch at: https://github.com/loongson/

The latest kernel:
  * https://github.com/loongson/linux/tree/loongarch-next

Missing review:
  * 0017-LoongArch-Linux-User-Emulation.patch


Changes for v7:
  * scripts/gensyscalls.sh support loongarch64
    if we use gensyscalls.sh, we need disable __BITS_PER_LONG at arch/loongarch/include/uapi/asm/bitsperlong.h

Changes for v6:
  * Resolve patch10 and patch6 code issues.

Changes for v5:
  * Follow Richard's code review comments [1].
  * Use force_sig_fault().
  * Implement setup_sigtramp.

    [1]: https://patchew.org/QEMU/[e-mail]/

Changes for v4:
  * Update README，add LoongArch linux-user emulation Introduction.
  * Add 'make check-tcg' support(patch 20).
  * Add binfmt config(patch 21).
  * Fix bugs when running loongarch basic commands.

Changes for v3:
  * Split trans.inc.c.
  * Remove csr registers.
  * Delete patchs 2, 4, 5.
  * Follow Richard's code review comments [1].
  * Follow Richard's riscv patches [2].

    [1]: https://patchew.org/QEMU/[e-mail]/
    [2]: https://patchew.org/QEMU/[e-mail]/

Changes for v2:
  * Patch 1, remove unnecessary introduction;
  * Patch 3, follow the ARM/AVR pattern to add new CPU features;
  * Patch 6, remove decode_lsx();
  * Patches 7-18, delete opcode definition, modify translation function;
  * Patches 20-22, split V1 patch20 to V2 patch20-22.

V6: https://patchew.org/QEMU/[e-mail]/
V5: https://patchew.org/QEMU/[e-mail]/
V4: https://patchew.org/QEMU/[e-mail]/
V3: https://patchew.org/QEMU/[e-mail]/
V2: https://patchew.org/QEMU/[e-mail]/
V1: https://patchew.org/QEMU/[e-mail]/

Please review!

Thanks.


Song Gao (21):
  target/loongarch: Add README
  target/loongarch: Add core definition
  target/loongarch: Add main translation routines
  target/loongarch: Add fixed point arithmetic instruction translation
  target/loongarch: Add fixed point shift instruction translation
  target/loongarch: Add fixed point bit instruction translation
  target/loongarch: Add fixed point load/store instruction translation
  target/loongarch: Add fixed point atomic instruction translation
  target/loongarch: Add fixed point extra instruction translation
  target/loongarch: Add floating point arithmetic instruction
    translation
  target/loongarch: Add floating point comparison instruction
    translation
  target/loongarch: Add floating point conversion instruction
    translation
  target/loongarch: Add floating point move instruction translation
  target/loongarch: Add floating point load/store instruction
    translation
  target/loongarch: Add branch instruction translation
  target/loongarch: Add disassembler
  LoongArch Linux User Emulation
  default-configs: Add loongarch linux-user support
  target/loongarch: Add target build suport
  target/loongarch: 'make check-tcg' support
  scripts: add loongarch64 binfmt config

 MAINTAINERS                                 |    6 +
 accel/tcg/user-exec.c                       |   15 +
 configs/targets/loongarch64-linux-user.mak  |    3 +
 configure                                   |    5 +
 disas/loongarch.c                           | 2511 +++++++++++++++++++++++++++
 disas/meson.build                           |    1 +
 include/disas/dis-asm.h                     |    2 +
 include/elf.h                               |    2 +
 linux-user/elfload.c                        |   58 +
 linux-user/host/loongarch/hostdep.h         |   11 +
 linux-user/loongarch64/cpu_loop.c           |   98 ++
 linux-user/loongarch64/signal.c             |  163 ++
 linux-user/loongarch64/sockbits.h           |    1 +
 linux-user/loongarch64/syscall_nr.h         |  312 ++++
 linux-user/loongarch64/target_cpu.h         |   35 +
 linux-user/loongarch64/target_elf.h         |   14 +
 linux-user/loongarch64/target_errno_defs.h  |    7 +
 linux-user/loongarch64/target_fcntl.h       |   12 +
 linux-user/loongarch64/target_signal.h      |   30 +
 linux-user/loongarch64/target_structs.h     |   49 +
 linux-user/loongarch64/target_syscall.h     |   46 +
 linux-user/loongarch64/termbits.h           |    1 +
 linux-user/syscall_defs.h                   |   10 +-
 meson.build                                 |    3 +-
 scripts/gensyscalls.sh                      |    1 +
 scripts/qemu-binfmt-conf.sh                 |    6 +-
 target/loongarch/README                     |   76 +
 target/loongarch/cpu-param.h                |   19 +
 target/loongarch/cpu.c                      |  286 +++
 target/loongarch/cpu.h                      |  151 ++
 target/loongarch/fpu_helper.c               |  865 +++++++++
 target/loongarch/helper.h                   |   97 ++
 target/loongarch/insn_trans/trans_arith.c   |  322 ++++
 target/loongarch/insn_trans/trans_atomic.c  |  133 ++
 target/loongarch/insn_trans/trans_bit.c     |  255 +++
 target/loongarch/insn_trans/trans_branch.c  |   85 +
 target/loongarch/insn_trans/trans_extra.c   |   87 +
 target/loongarch/insn_trans/trans_farith.c  |  108 ++
 target/loongarch/insn_trans/trans_fcmp.c    |   59 +
 target/loongarch/insn_trans/trans_fcnv.c    |   36 +
 target/loongarch/insn_trans/trans_fmemory.c |  187 ++
 target/loongarch/insn_trans/trans_fmov.c    |  153 ++
 target/loongarch/insn_trans/trans_memory.c  |  235 +++
 target/loongarch/insn_trans/trans_shift.c   |  131 ++
 target/loongarch/insns.decode               |  480 +++++
 target/loongarch/internals.h                |   29 +
 target/loongarch/meson.build                |   18 +
 target/loongarch/op_helper.c                |   85 +
 target/loongarch/translate.c                |  288 +++
 target/loongarch/translate.h                |   46 +
 target/meson.build                          |    1 +
 tests/tcg/configure.sh                      |    1 +
 52 files changed, 7629 insertions(+), 6 deletions(-)
 create mode 100644 configs/targets/loongarch64-linux-user.mak
 create mode 100644 disas/loongarch.c
 create mode 100644 linux-user/host/loongarch/hostdep.h
 create mode 100644 linux-user/loongarch64/cpu_loop.c
 create mode 100644 linux-user/loongarch64/signal.c
 create mode 100644 linux-user/loongarch64/sockbits.h
 create mode 100644 linux-user/loongarch64/syscall_nr.h
 create mode 100644 linux-user/loongarch64/target_cpu.h
 create mode 100644 linux-user/loongarch64/target_elf.h
 create mode 100644 linux-user/loongarch64/target_errno_defs.h
 create mode 100644 linux-user/loongarch64/target_fcntl.h
 create mode 100644 linux-user/loongarch64/target_signal.h
 create mode 100644 linux-user/loongarch64/target_structs.h
 create mode 100644 linux-user/loongarch64/target_syscall.h
 create mode 100644 linux-user/loongarch64/termbits.h
 create mode 100644 target/loongarch/README
 create mode 100644 target/loongarch/cpu-param.h
 create mode 100644 target/loongarch/cpu.c
 create mode 100644 target/loongarch/cpu.h
 create mode 100644 target/loongarch/fpu_helper.c
 create mode 100644 target/loongarch/helper.h
 create mode 100644 target/loongarch/insn_trans/trans_arith.c
 create mode 100644 target/loongarch/insn_trans/trans_atomic.c
 create mode 100644 target/loongarch/insn_trans/trans_bit.c
 create mode 100644 target/loongarch/insn_trans/trans_branch.c
 create mode 100644 target/loongarch/insn_trans/trans_extra.c
 create mode 100644 target/loongarch/insn_trans/trans_farith.c
 create mode 100644 target/loongarch/insn_trans/trans_fcmp.c
 create mode 100644 target/loongarch/insn_trans/trans_fcnv.c
 create mode 100644 target/loongarch/insn_trans/trans_fmemory.c
 create mode 100644 target/loongarch/insn_trans/trans_fmov.c
 create mode 100644 target/loongarch/insn_trans/trans_memory.c
 create mode 100644 target/loongarch/insn_trans/trans_shift.c
 create mode 100644 target/loongarch/insns.decode
 create mode 100644 target/loongarch/internals.h
 create mode 100644 target/loongarch/meson.build
 create mode 100644 target/loongarch/op_helper.c
 create mode 100644 target/loongarch/translate.c
 create mode 100644 target/loongarch/translate.h