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qemu-e2k/target/loongarch
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Song Gao 65bfaaae6a
target/loongarch: Fix the vinsgr2vr/vpickve2gr instructions cause system coredump 
The vinsgr2vr/vpickve2gr instructions need use get_src/get_dst to get
gpr registers value, not cpu_gpr[]. The $zero register does not
have cpu_gpr[0] allocated.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1662

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230525120005.2223413-1-gaosong@loongson.cn>
2023-05-26 17:21:16 +08:00
..
insn_trans target/loongarch: Fix the vinsgr2vr/vpickve2gr instructions cause system coredump 2023-05-26 17:21:16 +08:00
constant_timer.c
cpu-csr.h
cpu-param.h target/loongarch: Remove NB_MMU_MODES define 2023-03-13 06:44:37 -07:00
cpu.c target/loongarch: Fix LD/ST{LE/GT} instructions get wrong CSR_ERA and CSR_BADV 2023-05-26 17:21:12 +08:00
cpu.h target/loongarch: Implement LSX fpu arith instructions 2023-05-06 11:19:48 +08:00
csr_helper.c target/loongarch: Do not include tcg-ldst.h 2023-05-11 09:53:41 +01:00
disas.c target/loongarch: Implement vldi 2023-05-06 11:19:49 +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 LSX data type VReg 2023-05-06 11:19:42 +08:00
helper.h target/loongarch: Implement vilvl vilvh vextrins vshuf 2023-05-06 11:19:49 +08:00
insns.decode target/loongarch: Implement vldi 2023-05-06 11:19:49 +08:00
internals.h target/loongarch: Implement LSX fpu arith instructions 2023-05-06 11:19:48 +08:00
iocsr_helper.c target/loongarch: Do not include tcg-ldst.h 2023-05-11 09:53:41 +01:00
Kconfig
loongarch-qmp-cmds.c
lsx_helper.c target/loongarch: Implement vilvl vilvh vextrins vshuf 2023-05-06 11:19:49 +08:00
machine.c target/loongarch: Terminate vmstate subsections list 2023-05-10 09:52:36 +01:00
meson.build target/loongarch: meson.build support build LSX 2023-05-06 11:19:44 +08:00
op_helper.c target/loongarch: Fix LD/ST{LE/GT} instructions get wrong CSR_ERA and CSR_BADV 2023-05-26 17:21:12 +08:00
README
tlb_helper.c
translate.c target/loongarch: Use {set/get}_gpr replace to cpu_fpr 2023-05-06 11:19:50 +08:00
translate.h target/loongarch: Implement vadd/vsub 2023-05-06 11:19:45 +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/