31f694b911
Add support for the query-cpu-model-expansion QMP command to LoongArch.
We support query the cpu features.
e.g
la464 and max cpu support LSX/LASX, default enable,
la132 not support LSX/LASX.
1. start with '-cpu max,lasx=off'
(QEMU) query-cpu-model-expansion type=static model={"name":"max"}
{"return": {"model": {"name": "max", "props": {"lasx": false, "lsx": true}}}}
2. start with '-cpu la464,lasx=off'
(QEMU) query-cpu-model-expansion type=static model={"name":"la464"}
{"return": {"model": {"name": "max", "props": {"lasx": false, "lsx": true}}}
3. start with '-cpu la132,lasx=off'
qemu-system-loongarch64: can't apply global la132-loongarch-cpu.lasx=off: Property 'la132-loongarch-cpu.lasx' not found
4. start with '-cpu max,lasx=off' or start with '-cpu la464,lasx=off' query cpu model la132
(QEMU) query-cpu-model-expansion type=static model={"name":"la132"}
{"return": {"model": {"name": "la132"}}}
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231020084925.3457084-4-gaosong@loongson.cn>
|
||
|---|---|---|
| .. | ||
| insn_trans | ||
| constant_timer.c | ||
| cpu-csr.h | ||
| cpu-param.h | ||
| cpu.c | ||
| cpu.h | ||
| csr_helper.c | ||
| disas.c | ||
| fpu_helper.c | ||
| gdbstub.c | ||
| helper.h | ||
| insns.decode | ||
| internals.h | ||
| iocsr_helper.c | ||
| Kconfig | ||
| loongarch-qmp-cmds.c | ||
| machine.c | ||
| meson.build | ||
| op_helper.c | ||
| README | ||
| tlb_helper.c | ||
| translate.c | ||
| translate.h | ||
| vec_helper.c | ||
| vec.h | ||
- 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/