qemu-e2k

History

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
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
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
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/