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qemu/target/loongarch
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Song Gao 77642f92c0 target/loongarch: Fix qemu-loongarch64 hang when executing 'll.d $t0, $t0, 0' 
On gen_ll, if a->imm is zero, make_address_x return src1,
but the load to destination may clobber src1. We use a new
destination to fix this problem.

Fixes: c5af6628f4 (target/loongarch: Extract make_address_i() helper)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240320013955.1561311-1-gaosong@loongson.cn>
2024-03-20 10:20:08 +08:00
..
kvm * Add missing ERRP_GUARD() statements in functions that need it 2024-03-12 16:55:42 +00:00
tcg target/loongarch: Fix qemu-loongarch64 hang when executing 'll.d $t0, $t0, 0' 2024-03-20 10:20:08 +08:00
cpu_helper.c target/loongarch: Prefer fast cpu_env() over slower CPU QOM cast macro 2024-03-12 12:04:24 +01:00
cpu-csr.h target/loongarch: Fix tlb huge page loading issue 2024-03-20 10:20:03 +08:00
cpu-param.h target/loongarch: Support 4K page size 2023-11-03 14:13:13 +08:00
cpu-qom.h target: Move ArchCPUClass definition to 'cpu.h' 2023-11-07 13:08:48 +01:00
cpu.c target/loongarch: Prefer fast cpu_env() over slower CPU QOM cast macro 2024-03-12 12:04:24 +01:00
cpu.h include/exec: Implement cpu_mmu_index generically 2024-02-03 16:46:10 +10:00
disas.c target/loongarch: honour show_opcodes when disassembling 2024-03-06 12:35:51 +00:00
gdbstub.c target/loongarch: Prefer fast cpu_env() over slower CPU QOM cast macro 2024-03-12 12:04:24 +01:00
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: Fix tlb huge page loading issue 2024-03-20 10:20:03 +08:00
Kconfig hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
loongarch-qmp-cmds.c target/loongarch: Fix query-cpu-model-expansion to reject props 2024-03-12 14:03:37 +01:00
machine.c target/loongarch: Constify VMState in machine.c 2023-12-29 11:17:30 +11:00
meson.build target/loongarch: Fix qtest test-hmp error when KVM-only build 2024-02-01 15:29:40 +08:00
README docs/system/loongarch: Update the LoongArch document 2022-08-13 04:45:03 -07:00
trace-events target/loongarch: Implement set vcpu intr for kvm 2024-01-11 19:22:32 +08:00
trace.h target/loongarch: Implement kvm get/set registers 2024-01-11 19:14:00 +08:00
translate.h target/loongarch: Add avail_LASX to check LASX instructions 2023-09-20 11:43:11 +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/