docs: consolidate 10 docs per language into 3 + bilingual index

README.md

@@ -191,16 +191,11 @@ to gem5's vfio-user server and maps all BARs through the standard vfio-user prot
 
 ## Documentation
 
-Detailed technical documentation is available in [`docs/`](docs/):
-
-- [Complete Usage Guide](docs/en/cosim-usage-guide.md) — build, run, test
-- [Technical Notes](docs/en/cosim-technical-notes.md) — architecture, pitfalls, fixes
-- [MI300X Memory Management](docs/en/mi300x-memory-management.md) — GART, address translation
-- [GPU FS Guide](docs/en/gpu-fs-guide.md) — gem5 standalone GPU full-system simulation
-- [Guest GPU Init](docs/en/cosim-guest-gpu-init.md) — driver initialization flow
-- [Memory Architecture](docs/en/cosim-memory-architecture.md) — shared memory, VRAM routing, DMA
-- [Debugging Pitfalls](docs/en/cosim-debugging-pitfalls.md) — common issues and solutions
-- [Development Story](docs/en/cosim-dev-story.md) — how this project was built in one day with Claude
+Detailed technical documentation is available in [`docs/`](docs/README.md):
+
+- [Getting Started](docs/en/getting-started.md) — build, launch, and run your first HIP test
+- [Architecture](docs/en/architecture.md) — system design, memory sharing, address translation
+- [Reference](docs/en/reference.md) — parameters, troubleshooting, debugging commands
 
 ## License
 

README.zh.md

@@ -161,16 +161,11 @@ cosim/
 
 ## 技术文档
 
-详细技术文档位于 [`docs/`](docs/) 目录下：
-
-- [完整使用指南](docs/zh/cosim-usage-guide.md) — 从编译到运行 HIP 测试的全流程
-- [技术笔记](docs/zh/cosim-technical-notes.md) — 架构设计、踩坑记录、修复方案
-- [MI300X 内存管理](docs/zh/mi300x-memory-management.md) — GART、地址翻译、内存映射
-- [GPU 全系统仿真指南](docs/zh/gpu-fs-guide.md) — gem5 单机 GPU FS 仿真复现
-- [Guest GPU 初始化流程](docs/zh/cosim-guest-gpu-init.md) — 驱动加载与设备初始化
-- [内存架构](docs/zh/cosim-memory-architecture.md) — 共享内存、VRAM 路由、DMA
-- [调试踩坑记录](docs/zh/cosim-debugging-pitfalls.md) — 常见问题与解决方案
-- [开发故事](docs/zh/cosim-dev-story.md) — 一天时间用 Claude 构建 cosim-gpu 的全过程
+详细技术文档位于 [`docs/`](docs/README.md) 目录下：
+
+- [快速入门](docs/zh/getting-started.md) — 从编译到运行首个 HIP 测试的全流程
+- [架构文档](docs/zh/architecture.md) — 系统设计、内存共享、地址翻译
+- [参考手册](docs/zh/reference.md) — 参数表、故障排查、调试命令
 
 ## 版本矩阵
 

docs/README.md

@@ -0,0 +1,14 @@
+# QEMU + gem5 MI300X Co-simulation Documentation
+
+Documentation is available in two languages:
+
+- **中文文档 (Chinese)** — 中文版本
+- **English Documentation** — English version
+
+## Quick Links
+
+| Document | 中文 | English |
+|----------|------|---------|
+| Getting Started | [快速入门](zh/getting-started.md) | [Getting Started](en/getting-started.md) |
+| Architecture | [架构文档](zh/architecture.md) | [Architecture](en/architecture.md) |
+| Reference | [参考手册](zh/reference.md) | [Reference](en/reference.md) |