qemu-e2k

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
cpu-csr.h	target/loongarch: Support LoongArch32 VPPN	2023-08-24 11:17:56 +08:00
cpu-param.h
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
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
loongarch-qmp-cmds.c
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
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/