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FRET-qemu/target/loongarch
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Xianglai Li 0c346576e4 target/loongarch: Fix the cpu unplug resource leak 
When the cpu is created, qemu_add_vm_change_state_handler
is called in the kvm_arch_init_vcpu function to create
the VMChangeStateEntry resource.

However, the resource is not released when the cpu is destroyed.
This results in a qemu process segment error when the virtual
machine restarts after the cpu is unplugged.

This patch solves the problem by adding the corresponding resource
release process to the kvm_arch_destroy_vcpu function.

Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20250324123328.518076-1-lixianglai@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2025-03-27 20:29:17 +08:00
..
kvm
target/loongarch: Fix the cpu unplug resource leak
2025-03-27 20:29:17 +08:00
tcg
Error reporting patches for 2025-03-21
2025-03-23 11:04:27 -04:00
arch_dump.c
include: Rename sysemu/ -> system/
2024-12-20 17:44:56 +01:00
cpu_helper.c
target/loongarch: Add page table walker support for debugger usage
2025-01-15 14:16:51 +08:00
cpu-csr.h
target/loongarch: Fix tlb huge page loading issue
2024-03-20 10:20:03 +08:00
cpu-param.h
target/*: Remove TARGET_LONG_BITS from cpu-param.h
2025-02-08 12:41:33 -08:00
cpu-qom.h
target: Move ArchCPUClass definition to 'cpu.h'
2023-11-07 13:08:48 +01:00
cpu.c
target/loongarch: Move has_work() from CPUClass to SysemuCPUOps
2025-03-09 17:00:47 +01:00
cpu.h
target/loongarch: Fix the cpu unplug resource leak
2025-03-27 20:29:17 +08:00
csr.c
target/loongarch: Dump all generic CSR registers
2025-01-24 14:49:24 +08:00
csr.h
target/loongarch: Dump all generic CSR registers
2025-01-24 14:49:24 +08:00
disas.c
target/loongarch: honour show_opcodes when disassembling
2024-03-06 12:35:51 +00:00
gdbstub.c
target/loongarch/gdbstub: Fix gdbstub incorrectly handling some registers
2025-02-25 16:05:31 +08:00
helper.h
target/loongarch: check tlb_ps
2025-03-07 10:15:08 +08:00
insns.decode
target/loongarch: Add preldx instruction
2023-10-13 09:50:16 +08:00
internals.h
target/loongarch: fix bad shift in check_ps()
2025-03-21 11:31:56 +08:00
Kconfig
hw/loongarch: Add support loongson3 virt machine type.
2022-06-06 18:09:03 +00:00
loongarch-qmp-cmds.c
target/loongarch: Add vCPU property for kvm steal time feature
2025-02-25 16:05:31 +08:00
machine.c
include: Rename sysemu/ -> system/
2024-12-20 17:44:56 +01:00
meson.build
target/loongarch: Add common source file for CSR register
2025-01-24 14:49:24 +08:00
README
docs/system/loongarch: Update the LoongArch document
2022-08-13 04:45:03 -07:00
trace-events
target/loongarch: Implement set vcpu intr for kvm
2024-01-11 19:22:32 +08:00
trace.h
target/loongarch: Implement kvm get/set registers
2024-01-11 19:14:00 +08:00
translate.h
target/loongarch: Add avail_LASX to check LASX instructions
2023-09-20 11:43:11 +08:00
vec.h
target/loongarch: Move simply DO_XX marcos togther
2023-09-20 14:33:43 +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/