qemu/loongarch at u3-7.2.0 - qemu

You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

History

Rui Wang e913bace61 target/loongarch: Fix return value of CHECK_FPE Regarding the patchset v3 has been merged into main line, and not approved, this patch updates to patchset v4. Fixes: `2419978c` ("target/loongarch: Fix emulation of float-point disable exception") Link: https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg00808.html Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Rui Wang <wangrui@loongson.cn> Message-Id: <20221107024526.702297-3-wangrui@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>		2 years ago
..
insn_trans	target/loongarch: Fix return value of CHECK_FPE	2 years ago
Kconfig	hw/loongarch: Add support loongson3 virt machine type.	3 years ago
README	docs/system/loongarch: Update the LoongArch document	2 years ago
constant_timer.c	target/loongarch: Add constant timer support	3 years ago
cpu-csr.h	target/loongarch: Add CSRs definition	3 years ago
cpu-param.h	target/loongarch: Add MMU support for LoongArch CPU.	3 years ago
cpu.c	target/loongarch: Fix emulation of float-point disable exception	2 years ago
cpu.h	target/loongarch: Separate the hardware flags into MMU index and PLV	2 years ago
csr_helper.c	target/loongarch: Add lock when writing timer clear reg	2 years ago
disas.c	target/loongarch: Add timer related instructions support.	3 years ago
fpu_helper.c	target/loongarch: Remove cpu_fcsr0	2 years ago
gdbstub.c	target/loongarch: Update gdb_set_fpu() and gdb_get_fpu()	2 years ago
helper.h	target/loongarch: Remove cpu_fcsr0	2 years ago
insns.decode	target/loongarch: Add timer related instructions support.	3 years ago
internals.h	target/loongarch: Update gdb_set_fpu() and gdb_get_fpu()	2 years ago
iocsr_helper.c	hw/intc: Fix LoongArch extioi coreisr accessing	2 years ago
machine.c	target/loongarch: Add MMU support for LoongArch CPU.	3 years ago
meson.build	target/loongarch: Add gdb support.	3 years ago
op_helper.c	target/loongarch/op_helper: Fix coverity cond_at_most error	2 years ago
tlb_helper.c	target/loongarch: Separate the hardware flags into MMU index and PLV	2 years ago
translate.c	target/loongarch: Separate the hardware flags into MMU index and PLV	2 years ago
translate.h	target/loongarch: Separate the hardware flags into MMU index and PLV	2 years ago

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/