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qemu/target/loongarch
Richard Henderson a0ea8654e5
target/loongarch: Use VADDR_PRIx for logging pc_next 		1 year ago
..
kvm target/loongarch: Use auto method with LASX feature 1 year ago
tcg target/loongarch: Use VADDR_PRIx for logging pc_next 1 year ago
Kconfig hw/loongarch: Add support loongson3 virt machine type. 4 years ago
README docs/system/loongarch: Update the LoongArch document 4 years ago
arch_dump.c include: Rename sysemu/ -> system/ 1 year ago
cpu-csr.h target/loongarch: Fix tlb huge page loading issue 2 years ago
cpu-param.h target/*: Remove TARGET_LONG_BITS from cpu-param.h 1 year ago
cpu-qom.h target: Move ArchCPUClass definition to 'cpu.h' 2 years ago
cpu.c target/loongarch: Dump all generic CSR registers 1 year ago
cpu.h hw/loongarch/virt: Remove unused ipistate 1 year ago
cpu_helper.c target/loongarch: Add page table walker support for debugger usage 1 year ago
csr.c target/loongarch: Dump all generic CSR registers 1 year ago
csr.h target/loongarch: Dump all generic CSR registers 1 year ago
disas.c target/loongarch: honour show_opcodes when disassembling 2 years ago
gdbstub.c target/loongarch: Use explicit little-endian LD/ST API 1 year ago
helper.h target/loongarch: Only support 64bit pte width 1 year ago
insns.decode target/loongarch: Add preldx instruction 3 years ago
internals.h target/loongarch: Add page table walker support for debugger usage 1 year ago
loongarch-qmp-cmds.c qapi: Move include/qapi/qmp/ to include/qobject/ 1 year ago
machine.c include: Rename sysemu/ -> system/ 1 year ago
meson.build target/loongarch: Add common source file for CSR register 1 year ago
trace-events target/loongarch: Implement set vcpu intr for kvm 2 years ago
trace.h target/loongarch: Implement kvm get/set registers 2 years ago
translate.h target/loongarch: Add avail_LASX to check LASX instructions 3 years ago
vec.h target/loongarch: Move simply DO_XX marcos togther 3 years ago

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/