riscv/qemu: QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org - qemu

QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

emulation kvm qemu virtualization

History

Richard Henderson 4975b64efb loongarch queue -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQNhkKjomWfgLCz0aQfewwSUazn0QUCaNjtuwAKCRAfewwSUazn 0Z9VAQDuqEzBEj0I3L7AtJgwRxSau+sw9FqUdAjQguM9mA29ggD7BOBFwHpjx68t 8MMstQuZN2mFRwzfukIdLDZclPCKkAM= =L9oL -----END PGP SIGNATURE----- Merge tag 'pull-loongarch-20250928' of https://github.com/bibo-mao/qemu into staging loongarch queue # -----BEGIN PGP SIGNATURE----- # # iHUEABYKAB0WIQQNhkKjomWfgLCz0aQfewwSUazn0QUCaNjtuwAKCRAfewwSUazn # 0Z9VAQDuqEzBEj0I3L7AtJgwRxSau+sw9FqUdAjQguM9mA29ggD7BOBFwHpjx68t # 8MMstQuZN2mFRwzfukIdLDZclPCKkAM= # =L9oL # -----END PGP SIGNATURE----- # gpg: Signature made Sun 28 Sep 2025 01:11:39 AM PDT # gpg: using EDDSA key 0D8642A3A2659F80B0B3D1A41F7B0C1251ACE7D1 # gpg: Good signature from "bibo mao <maobibo@loongson.cn>" [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 7044 3A00 19C0 E97A 31C7 13C4 8E86 8FB7 A176 9D4C # Subkey fingerprint: 0D86 42A3 A265 9F80 B0B3 D1A4 1F7B 0C12 51AC E7D1 * tag 'pull-loongarch-20250928' of https://github.com/bibo-mao/qemu: target/loongarch: Only flush one TLB entry in helper_invtlb_page_asid() target/loongarch: Only flush one TLB entry in helper_invtlb_page_asid_or_g() target/loongarch: Invalid tlb entry in invalidate_tlb() target/loongarch: Use loongarch_tlb_search_cb in helper_invtlb_page_asid target/loongarch: Use loongarch_tlb_search_cb in helper_invtlb_page_asid_or_g target/loongarch: Change return value type with loongarch_tlb_search_cb() target/loongarch: Add common API loongarch_tlb_search_cb() target/loongarch: Add tlb search callback in loongarch_tlb_search() target/loongarch: Fix page size set issue with CSR_STLBPS target/loongarch: Update TLB index selection method target/loongarch: Reduce TLB flush with helper_tlbwr target/loongarch: Add parameter tlb pointer with fill_tlb_entry target/loongarch: Use mmu idx bitmap method when flush TLB Signed-off-by: Richard Henderson <richard.henderson@linaro.org>		10 months ago
..
kvm	target/loongarch: Move some function definition to kvm directory	11 months ago
tcg	loongarch queue	10 months ago
Kconfig	hw/loongarch: Add support loongson3 virt machine type.	4 years ago
README	treewide: fix paths for relocated files in comments	1 year ago
arch_dump.c	include: Rename sysemu/ -> system/	2 years ago
cpu-csr.h	loongarch queue	10 months ago
cpu-mmu.h	target/loongarch: Use MMUContext in get_physical_address()	11 months ago
cpu-param.h	tcg: Remove the TCG_GUEST_DEFAULT_MO definition globally	1 year ago
cpu-qom.h	target: Move ArchCPUClass definition to 'cpu.h'	3 years ago
cpu.c	hw/loongarch: add virt feature dmsi support	10 months ago
cpu.h	hw/loongarch: Implement dintc realize and unrealize	10 months ago
cpu_helper.c	target/loongarch: Use MMUContext in get_physical_address()	11 months ago
csr.c	target/loongarch:Implement csrrd CSR_MSGIR register	10 months ago
csr.h	target/loongarch: Dump all generic CSR registers	2 years ago
disas.c	target/loongarch: honour show_opcodes when disassembling	2 years ago
gdbstub.c	target/loongarch/gdbstub: Fix gdbstub incorrectly handling some registers	1 year ago
helper.h	target/loongarch: Move header file helper.h to directory tcg	1 year ago
insns.decode	target/loongarch: Add preldx instruction	3 years ago
internals.h	target/loongarch: Add header file cpu-mmu.h	11 months ago
loongarch-qmp-cmds.c	target/qmp: Use target_cpu_type()	1 year ago
machine.c	target/loongarch: add msg interrupt CSR registers	10 months ago
meson.build	target/loongarch: Add common source file for CSR register	2 years ago
trace-events	target/loongarch: Implement set vcpu intr for kvm	3 years ago
trace.h	target/loongarch: Implement kvm get/set registers	3 years ago
translate.h	target/loongarch: Guard 64-bit-only insn translation with TRANS64 macro	11 months ago
vec.h	target/loongarch: Move simply DO_XX marcos togther	3 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/