OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity
qemu-e2k/target/loongarch
History
Song Gao 5f1a3132c6 target/loongarch: Add preldx instruction 
Resolve the issue of starting the Loongnix 20.5[1] system failure.

Logs:
    Loading Linux 4.19.0-19-loongson-3 ...
    Loading initial ramdisk ...
    PROGRESS CODE: V02010004 I0
    PROGRESS CODE: V03101019 I0
    Error: unknown opcode. 90000000003a3e6c: 0x382c6d82

[1] http://pkg.loongnix.cn/loongnix/isos/Loongnix-20.5/Loongnix-20.5.cartoon.gui.loongarch64.en.qcow2

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230905123910.3052023-1-gaosong@loongson.cn>
2023-10-13 09:50:16 +08:00
..
insn_trans
target/loongarch: Add preldx instruction
2023-10-13 09:50:16 +08:00
constant_timer.c
target/loongarch: Add constant timer support
2022-06-06 18:09:03 +00:00
cpu-csr.h
target/loongarch: Support LoongArch32 VPPN
2023-08-24 11:17:56 +08:00
cpu-param.h
target/loongarch: Remove NB_MMU_MODES define
2023-03-13 06:44:37 -07:00
cpu.c
hw/core/cpu: Return static value with gdb_arch_name()
2023-10-11 08:46:33 +01:00
cpu.h
target/loongarch: fix ASXE flag conflict
2023-10-13 09:50:16 +08:00
csr_helper.c
target/loongarch: Fix the CSRRD CPUID instruction on big endian hosts
2023-07-24 18:44:48 +02:00
disas.c
target/loongarch: Add preldx instruction
2023-10-13 09:50:16 +08:00
fpu_helper.c
target/loongarch: Implement LSX fpu arith instructions
2023-05-06 11:19:48 +08:00
gdbstub.c
target/loongarch: Add LASX data support
2023-09-20 11:43:11 +08:00
helper.h
target/loongarch: Implement xvshuf xvperm{i} xvshuf4i
2023-09-20 14:33:42 +08:00
insns.decode
target/loongarch: Add preldx instruction
2023-10-13 09:50:16 +08:00
internals.h
target/loongarch: Add LASX data support
2023-09-20 11:43:11 +08:00
iocsr_helper.c
target/helpers: Remove unnecessary 'qemu/main-loop.h' header
2023-08-31 19:47:43 +02:00
Kconfig
hw/loongarch: Add support loongson3 virt machine type.
2022-06-06 18:09:03 +00:00
loongarch-qmp-cmds.c
target/loongarch: Restrict 'qapi-commands-machine.h' to system emulation
2023-03-02 07:51:33 +01:00
machine.c
target/loongarch: Add LASX data support
2023-09-20 11:43:11 +08:00
meson.build
meson: Rename target_softmmu_arch -> target_system_arch
2023-10-07 19:03:07 +02:00
op_helper.c
target/helpers: Remove unnecessary 'qemu/main-loop.h' header
2023-08-31 19:47:43 +02:00
README
docs/system/loongarch: Update the LoongArch document
2022-08-13 04:45:03 -07:00
tlb_helper.c
target/loongarch: Support LoongArch32 VPPN
2023-08-24 11:17:56 +08:00
translate.c
accel/tcg: Replace CPUState.env_ptr with cpu_env()
2023-10-04 11:03:54 -07:00
translate.h
target/loongarch: Add avail_LASX to check LASX instructions
2023-09-20 11:43:11 +08:00
vec_helper.c
target/loongarch: Move simply DO_XX marcos togther
2023-09-20 14:33:43 +08:00
vec.h
target/loongarch: Move simply DO_XX marcos togther
2023-09-20 14:33:43 +08:00

README 

- Introduction

  LoongArch is the general processor architecture of Loongson.

  The following versions of the LoongArch core are supported
    core: 3A5000
    https://github.com/loongson/LoongArch-Documentation/releases/download/2021.08.17/LoongArch-Vol1-v1.00-EN.pdf

  We can get the latest loongarch documents at https://github.com/loongson/LoongArch-Documentation/tags.


- System emulation

  You can reference docs/system/loongarch/loongson3.rst to get the information about system emulation of LoongArch.

- Linux-user emulation

  We already support Linux user emulation. We can use LoongArch cross-tools to build LoongArch executables on X86 machines,
  and We can also use qemu-loongarch64 to run LoongArch executables.

  1. Config cross-tools env.

     see System emulation.

  2. Test tests/tcg/multiarch.

     ./configure  --static  --prefix=/usr  --disable-werror --target-list="loongarch64-linux-user" --enable-debug

     cd build

     make && make check-tcg

  3. Run LoongArch system basic command with loongarch-clfs-system.

     - Config clfs env.

       wget https://github.com/loongson/build-tools/releases/download/2022.05.29/loongarch64-clfs-system-5.0.tar.bz2

       tar -vxf loongarch64-clfs-system-5.0.tar.bz2 -C /opt/clfs

       cp /opt/clfs/lib64/ld-linux-loongarch-lp64d.so.1  /lib64

       export LD_LIBRARY_PATH="/opt/clfs/lib64"

     - Run LoongArch system basic command.

       ./qemu-loongarch64  /opt/clfs/usr/bin/bash
       ./qemu-loongarch64  /opt/clfs/usr/bin/ls
       ./qemu-loongarch64  /opt/clfs/usr/bin/pwd

- Note.
  We can get the latest LoongArch documents or LoongArch tools at https://github.com/loongson/