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qemu/target/loongarch
Richard Henderson 09d16ef11c loongarch queue
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Merge tag 'pull-loongarch-20250829' of https://github.com/bibo-mao/qemu into staging

loongarch queue

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# gpg: Signature made Fri 29 Aug 2025 12:05:16 PM AEST
# 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
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* tag 'pull-loongarch-20250829' of https://github.com/bibo-mao/qemu:
  target/loongarch: Use correct address when flush tlb
  target/loongarch: Use MMUContext in get_physical_address()
  target/loongarch: Use MMUContext in loongarch_map_address()
  target/loongarch: Use MMUContext in loongarch_get_addr_from_tlb
  target/loongarch: Use MMUConext in loongarch_map_tlb_entry()
  target/loongarch: Use loongarch_check_pte in loongarch_page_table_walker
  target/loongarch: Add common function loongarch_check_pte()
  target/loongarch: Use MMUAccessType in loongarch_map_tlb_entry()
  target/loongarch: Use vaddr in get_physical_address()
  target/loongarch: Add enum type TLBRet definition
  target/loongarch: Add header file cpu-mmu.h
  target/loongarch: Set page size in TLB entry with STLB
  target/loongarch: Define function loongarch_cpu_post_init as static
  target/loongarch: Move some function definition to kvm directory

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
1 week ago
..
kvm target/loongarch: Move some function definition to kvm directory 2 weeks ago
tcg loongarch queue 1 week ago
Kconfig
README treewide: fix paths for relocated files in comments 2 months ago
arch_dump.c include: Rename sysemu/ -> system/ 9 months ago
cpu-csr.h target/loongarch: Fix tlb huge page loading issue 1 year ago
cpu-mmu.h target/loongarch: Use MMUContext in get_physical_address() 2 weeks ago
cpu-param.h tcg: Remove the TCG_GUEST_DEFAULT_MO definition globally 5 months ago
cpu-qom.h target: Move ArchCPUClass definition to 'cpu.h' 2 years ago
cpu.c loongarch queue 1 week ago
cpu.h target/loongarch: Define function loongarch_cpu_post_init as static 2 weeks ago
cpu_helper.c target/loongarch: Use MMUContext in get_physical_address() 2 weeks ago
csr.c target/loongarch: Dump all generic CSR registers 8 months ago
csr.h target/loongarch: Dump all generic CSR registers 8 months ago
disas.c target/loongarch: honour show_opcodes when disassembling 2 years ago
gdbstub.c target/loongarch/gdbstub: Fix gdbstub incorrectly handling some registers 7 months ago
helper.h target/loongarch: Move header file helper.h to directory tcg 5 months ago
insns.decode target/loongarch: Add preldx instruction 2 years ago
internals.h target/loongarch: Add header file cpu-mmu.h 2 weeks ago
loongarch-qmp-cmds.c target/qmp: Use target_cpu_type() 2 months ago
machine.c include: Rename sysemu/ -> system/ 9 months ago
meson.build target/loongarch: Add common source file for CSR register 8 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 weeks 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/