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qemu/target/loongarch
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Jiajie Chen 505aa8d8f2
target/loongarch: Fix CSR.DMW0-3.VSEG check 
The previous code checks whether the highest 16 bits of virtual address
equal to that of CSR.DMW0-3. This is incorrect according to the spec,
and is corrected to compare only the highest four bits instead.

Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230614065556.2397513-1-c@jia.je>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2023-06-16 17:58:46 +08:00
..
insn_trans
accel/tcg: Introduce translator_io_start
2023-06-05 12:04:29 -07:00
constant_timer.c
target/loongarch: Add constant timer support
2022-06-06 18:09:03 +00:00
cpu-csr.h
target/loongarch: Add CSRs definition
2022-06-06 18:09:03 +00:00
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
hw/intc: Set physical cpuid route for LoongArch ipi device
2023-06-16 17:58:46 +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
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
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
docs/system/loongarch: Update the LoongArch document
2022-08-13 04:45:03 -07:00
tlb_helper.c
target/loongarch: Fix CSR.DMW0-3.VSEG check
2023-06-16 17:58:46 +08:00
translate.c
target/*: Add missing includes of exec/translation-block.h
2023-06-05 12:04:29 -07:00
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/