qemu-e2k

History

Jiajie Chen 17ffe331a9 target/loongarch: Split fcc register to fcc0-7 in gdbstub Since GDB 13.1(GDB commit ea3352172), GDB LoongArch changed to use fcc0-7 instead of fcc register. This commit partially reverts commit `2f149c759` (`target/loongarch: Update gdb_set_fpu() and gdb_get_fpu()`) to match the behavior of GDB. Note that it is a breaking change for GDB 13.0 or earlier, but it is also required for GDB 13.1 or later to work. Signed-off-by: Jiajie Chen <c@jia.je> Acked-by: Song Gao <gaosong@loongson.cn> Message-Id: <20230808054315.3391465-1-c@jia.je> Signed-off-by: Song Gao <gaosong@loongson.cn>		2023-08-24 11:17:59 +08:00
..
insn_trans	target/loongarch: Add avail_IOCSR to check iocsr instructions	2023-08-24 11:17:58 +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	target/loongarch: cpu: Implement get_arch_id callback	2023-08-24 11:17:59 +08:00
cpu.h	target/loongarch: cpu: Implement get_arch_id callback	2023-08-24 11:17:59 +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: Implement vldi	2023-05-06 11:19:49 +08:00
fpu_helper.c	target/loongarch: Implement LSX fpu arith instructions	2023-05-06 11:19:48 +08:00
gdbstub.c	target/loongarch: Split fcc register to fcc0-7 in gdbstub	2023-08-24 11:17:59 +08:00
helper.h	target/loongarch: Fix the CSRRD CPUID instruction on big endian hosts	2023-07-24 18:44:48 +02:00
insns.decode	target/loongarch: Implement vldi	2023-05-06 11:19:49 +08:00
internals.h	target/loongarch: Implement LSX fpu arith instructions	2023-05-06 11:19:48 +08:00
iocsr_helper.c	target/loongarch: Do not include tcg-ldst.h	2023-05-11 09:53:41 +01:00
Kconfig
loongarch-qmp-cmds.c
lsx_helper.c	target/loongarch: Implement vilvl vilvh vextrins vshuf	2023-05-06 11:19:49 +08:00
machine.c	target/loongarch: Terminate vmstate subsections list	2023-05-10 09:52:36 +01:00
meson.build	meson: Replace softmmu_ss -> system_ss	2023-06-20 10:01:30 +02:00
op_helper.c	target/loongarch: Extract set_pc() helper	2023-08-24 11:17:57 +08:00
README
tlb_helper.c	target/loongarch: Support LoongArch32 VPPN	2023-08-24 11:17:56 +08:00
translate.c	target/loongarch: Add avail_FP/FP_SP/FP_DP to check fpu instructions	2023-08-24 11:17:58 +08:00
translate.h	target/loongarch: Add avail_IOCSR to check iocsr instructions	2023-08-24 11:17:58 +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/