qemu/loongarch at master - qemu

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History

Philippe Mathieu-Daudé f756b7745a target/loongarch: Do not use target_ulong type for LDDIR level The LDDIR level page table is a 5-bit immediate. Using the uint32_t type for it is sufficient. Avoid the target_ulong type. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Song Gao <gaosong@loongson.cn> Message-Id: <20251009201947.34643-5-philmd@linaro.org>		3 days ago
..
kvm	accel/kvm: Introduce KvmPutState enum	5 days ago
tcg	target/loongarch: Do not use target_ulong type for LDDIR level	3 days ago
Kconfig	hw/loongarch: Add support loongson3 virt machine type.	3 years ago
README	treewide: fix paths for relocated files in comments	4 months ago
arch_dump.c	include: Rename sysemu/ -> system/	10 months ago
cpu-csr.h	loongarch queue	3 weeks ago
cpu-mmu.h	target/loongarch: Do not use target_ulong type for LDDIR level	3 days ago
cpu-param.h	tcg: Remove the TCG_GUEST_DEFAULT_MO definition globally	6 months ago
cpu-qom.h	target: Move ArchCPUClass definition to 'cpu.h'	2 years ago
cpu.c	target/loongarch: Move function do_raise_exception() to tcg_cpu.c	1 week ago
cpu.h	hw/loongarch: Implement dintc realize and unrealize	3 weeks ago
cpu_helper.c	target/loongarch: Do not use target_ulong type for LDDIR level	3 days ago
csr.c	target/loongarch:Implement csrrd CSR_MSGIR register	3 weeks ago
csr.h	target/loongarch: Dump all generic CSR registers	9 months ago
disas.c	target/loongarch: honour show_opcodes when disassembling	2 years ago
gdbstub.c	target/loongarch: Remove target_ulong use in gdb_write_register handler	3 days ago
helper.h	target/loongarch: Move header file helper.h to directory tcg	6 months ago
insns.decode	target/loongarch: Add preldx instruction	2 years ago
internals.h	target/loongarch: Define loongarch_exception_name() as static	1 week ago
loongarch-qmp-cmds.c	target/qmp: Use target_cpu_type()	3 months ago
machine.c	target/loongarch: Replace VMSTATE_UINTTL() -> VMSTATE_UINT64()	3 days ago
meson.build	target/loongarch: Add common source file for CSR register	9 months ago
trace-events	target/loongarch: Implement set vcpu intr for kvm	2 years ago
trace.h	target/loongarch: Implement kvm get/set registers	2 years ago
translate.h	target/loongarch: Guard 64-bit-only insn translation with TRANS64 macro	2 months ago
vec.h	target/loongarch: Move simply DO_XX marcos togther	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/virt.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/