mirror_qemu

History

Song Gao fc70099621 target/loongarch/kvm: Enable LSX/LASX extension The kernel had already support LSX and LASX [1], but QEMU is disable LSX/LASX for kvm. This patch adds kvm_check_cpucfg2() to check CPUCFG2. [1]: https://lore.kernel.org/all/CABgObfZHRf7E_7Jk4uPRmSyxTy3EiuuYwHC35jQncNL9s-zTDA@mail.gmail.com/ Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Message-Id: <20240122090206.1083584-1-gaosong@loongson.cn>		2024-01-25 15:25:31 +08:00
..
kvm	target/loongarch/kvm: Enable LSX/LASX extension	2024-01-25 15:25:31 +08:00
tcg	hw/loongarch/virt: Set iocsr address space per-board rather than percpu	2024-01-11 19:22:47 +08:00
Kconfig	hw/loongarch: Add support loongson3 virt machine type.	2022-06-06 18:09:03 +00:00
README	docs/system/loongarch: Update the LoongArch document	2022-08-13 04:45:03 -07:00
cpu-csr.h	target/loongarch: Support LoongArch32 VPPN	2023-08-24 11:17:56 +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	hw/loongarch/virt: Set iocsr address space per-board rather than percpu	2024-01-11 19:22:47 +08:00
cpu.h	hw/loongarch/virt: Set iocsr address space per-board rather than percpu	2024-01-11 19:22:47 +08:00
disas.c	target/loongarch: Add preldx instruction	2023-10-13 09:50:16 +08:00
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: Implement kvm get/set registers	2024-01-11 19:14:00 +08:00
loongarch-qmp-cmds.c	target: Use generic cpu_model_from_type()	2024-01-05 16:20:14 +01:00
machine.c	target/loongarch: Constify VMState in machine.c	2023-12-29 11:17:30 +11:00
meson.build	target/loongarch: Add loongarch kvm into meson build	2024-01-11 19:22:47 +08:00
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/