小任务：合并面向starry-next的arceos和axvisor的arceos到主线arceos中

[chyyuu]

目标：逐步合并面向starry-next的arceos和axvisor的arceos到主线arceos中

[elebirds]

相关信息总览

git仓库：

• https://github.com/elebirds/arceos
• https://github.com/numpy1314/arceos
• https://github.com/aluojibuzhu/arceos

面向starry-next的arceos合并工作进度：https://docs.qq.com/smartsheet/DVnp5VVV0R3Z2b2hU?tab=000001&viewId=vEJF46

[elebirds]

elebirds 2025.6.30进度：
已合并：

• feat: replace Mutex with lock_api arceos-org/arceos#238
• replace Mutex with lock_api in axstd arceos-org/arceos#240 （衍生提交）
• feat: support requeue, len, is_empty in WaitQueue arceos-org/arceos#241
• fix: make AxNamespace Send + Sync arceos-org/arceos#244
• feat: FP/SIMD support for LoongArch64  arceos-org/axcpu#5
• feat: introduced the check_region_access method in the AddrSpace arceos-org/arceos#246
• feat: FP/SIMD support for riscv64 arceos-org/axcpu#2

待审查：

• feat: improve context with more api arceos-org/axcpu#4
• feat: POST_TRAP callback arceos-org/axcpu#8
• feat: POST_TRAP callback linker support arceos-org/arceos#266
• fix: frequent context switch leads to IRQ being silenced arceos-org/axcpu#9

已关闭：

• feat: build without axstd arceos-org/arceos#245
• fix: save kernel stack position when exiting from trap handler on LoongArch64 arceos-org/axcpu#3

[numpy1314]

numpy1314 2025.6.13进度：
等待审查：
[feat] Support for ext4 junior #251 [https://github.com/arceos-org/arceos/pull/251]

[aluojibuzhu]

aluojibuzhu 2025.6.13进度：
修改中：[fix]:This constitutes a compilation of fixes for axmm
已提交待审查：fix(task): add weak linkage