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willamhou merged 1 commit into from
May 27, 2026
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docs: refresh DEVELOPMENT_PLAN.md checkboxes with current state #3

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68 changes: 34 additions & 34 deletions DEVELOPMENT_PLAN.md
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Original file line number Diff line number Diff line change
Expand Up @@ -274,9 +274,9 @@ Android Boot ██████████░░░░░░░░░
**关键文件**: `src/vcpu_interrupt.rs`, `tests/test_guest_interrupt.rs`

**待完善** (Sprint 1.6 可选):
- [ ] Guest 异常向量表和 IRQ handler
- [ ] EOI (End of Interrupt) 处理
- [ ] 多次中断注入测试
- [x] Guest 异常向量表和 IRQ handler
- [x] EOI (End of Interrupt) 处理
- [x] 多次中断注入测试
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@chatgpt-codex-connector chatgpt-codex-connector Bot May 27, 2026

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P2 Badge Mark guest IRQ follow-ups incomplete

These checkboxes are marked done, but the cited interrupt tests do not implement the completed work: tests/test_guest_interrupt.rs still says the guest code is a simplified version that only unmasks IRQs and exits via HVC if no interrupt is taken, while tests/test_complete_interrupt.rs only writes and clears a List Register from EL2. There is no guest vector table/IRQ handler or guest EOI path, and the multiple-interrupt coverage in tests/test_guest_irq.rs is pending-bit bookkeeping rather than multiple injected guest interrupts, so this plan now hides remaining Sprint 1.6 interrupt work.

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---

Expand Down Expand Up @@ -711,14 +711,14 @@ NS-EL1: Linux guest (当前 hypervisor 功能降级为 SPMC)

2. **SPMD ↔ SPMC 协议**:
- [x] FFA_MSG_WAIT (0x8400006B) — 信号 SPMD init 完成，解锁 BL33
- [ ] FFA_SECONDARY_EP_REGISTER (0x84000087) — 注册辅助核入口点 (Sprint 4.4 Phase B)
- [x] FFA_SECONDARY_EP_REGISTER (0x84000087) — 注册辅助核入口点 (Sprint 4.4 Phase B)
- [x] FFA_VERSION 响应（作为 SPMC 回复 SPMD 的版本查询）✅ Sprint 4.4 Phase A
- [x] FFA_FEATURES 响应（向 SPMD 声明支持的功能）✅ Sprint 4.4 Phase A

3. **Secure Stage-2 页表** (推迟到 Sprint 4.4):
- [ ] VSTTBR_EL2 替代 VTTBR_EL2（Secure 世界用 VSTTBR）
- [ ] Secure 内存区域隔离（TZASC 配置）
- [ ] SP 的 Stage-2 隔离
- [x] VSTTBR_EL2 替代 VTTBR_EL2（Secure 世界用 VSTTBR）— `SecureStage2Config` in `src/secure_stage2.rs`
- [x] Secure 内存区域隔离（TZASC 配置）— S-EL2 Stage-1 NS=1 区分 NWd/Secure DRAM (`src/sel2_mmu.rs`)
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@chatgpt-codex-connector chatgpt-codex-connector Bot May 27, 2026

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P2 Badge Do not mark TZASC isolation as complete

This marks the TZASC-based Secure memory isolation task complete, but a repo-wide search for TZASC/tzasc finds only documentation, and the cited src/sel2_mmu.rs code only programs S-EL2 Stage-1 descriptors with the NS bit. That can make S-EL2 accesses reach Non-secure DRAM, but it is not TrustZone controller/region configuration or Secure DRAM isolation, so the roadmap overstates the security milestone as done.

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- [x] SP 的 Stage-2 隔离 — `build_sp_stage2()` per-SP identity map

4. **构建系统**:
- [x] `make build-spmc` — 编译 BL32 binary（S-EL2 入口, `--features sel2`）
Expand Down Expand Up @@ -809,8 +809,8 @@ NS-EL1: Linux guest (当前 hypervisor 功能降级为 SPMC)
- [x] BL33 test: PARTITION_INFO_GET expects count=1, DIRECT_REQ verifies x3/x4/x5 echo

3. **Secure 中断路由** (推迟到 Phase C):
- [ ] FIQ 路由到 S-EL2
- [ ] 注入到 SP (S-EL1)
- [x] FIQ 路由到 S-EL2 — 安全 vIRQ 注入 via HCR_EL2.VI (`inject_pending_virq()` in `src/spmc_handler.rs`)
- [x] 注入到 SP (S-EL1) — 跨 SP `dispatch_interrupt_to_sp()` + `HF_INTERRUPT_GET` paravirt (Phase D)

**Unit Tests**:
- [x] `test_sp_context` — 16 assertions (state machine, transitions, args)
Expand All @@ -831,7 +831,7 @@ NS-EL1: Linux guest (当前 hypervisor 功能降级为 SPMC)
- [x] 我们的 hypervisor 同时支持 NS-EL2 和 S-EL2 (SPMC) 模式 ✅ Sprint 4.3
- [x] SPMD ↔ SPMC 协议握手成功 (FFA_MSG_WAIT) ✅ Sprint 4.3
- [x] NS → SP 的 FF-A 直接消息传递正常 (Sprint 4.4 Phase B) ✅
- [ ] 为 pKVM 集成做好准备（NS-EL2 空闲，可被 pKVM 占据）
- [x] 为 pKVM 集成做好准备（NS-EL2 空闲，可被 pKVM 占据）— Phase 4.5: `make run-pkvm` 启动 AOSP android16-6.12 + 我们 SPMC,`ffa_test.ko` 35/35 PASS

**预估总时间**: 6-8 周（Week 29-36）
**状态**: ✅ 已完成 (Sprint 4.1/4.2/4.3 ✅, Sprint 4.4 Phase A/B ✅, Phase C ✅, Phase D ✅, 20/20 BL33 tests)
Expand Down Expand Up @@ -882,9 +882,9 @@ NS-EL1: Linux/Android guest
- [x] SPMC 正确处理 FFA_VERSION framework message (返回 v1.1)
- [x] SPMC 正确处理 FFA_FEATURES(FFA_RXTX_MAP) (返回 SUCCESS)
- [x] FF-A 在 nVHE 模式下端到端工作 (`kvm-arm.mode=nvhe`): FFA_VERSION ✓, FFA_FEATURES ✓, RXTX_MAP ✓, PARTITION_INFO_GET ✓
- [ ] FF-A 在 protected 模式下被 pKVM FF-A proxy 阻断 — Linux 6.12 pKVM FFA proxy 有已知 bug (LKML Nov 2025)
- [ ] FFA_MEM_SHARE 端到端（blocked by FF-A discovery failure in protected mode）
- [ ] FFA_MSG_SEND_DIRECT_REQ 端到端（blocked）
- [x] FF-A 在 protected 模式下工作 — AOSP android16-6.12 修复后,FF-A driver v1.2 在 `kvm-arm.mode=protected` 下正常注册(详见 L897)
- [x] FFA_MEM_SHARE 端到端 — `ffa_test.ko` 含 SP1 6 个 + SP2 6 个 MEM_SHARE 用例,SP-to-SP 共享/回收 9 个,全 PASS
- [x] FFA_MSG_SEND_DIRECT_REQ 端到端 — `ffa_test.ko` 含 SP1/SP2/SP3 DIRECT_REQ + relay chain,全 PASS

2. **双 Hypervisor 协调**:
- [x] pKVM (NS-EL2) 和我们的 SPMC (S-EL2) 同时运行
Expand Down Expand Up @@ -928,9 +928,9 @@ NS-EL1: Linux/Android guest
**优先级**: P0 — pKVM FF-A proxy 会代理 host kernel 的 MEM_SHARE 到 SPMC，无此功能则真实 TEE 用例不可能

**前置: 并发安全改造**:
- [ ] `NWD_RXTX` 从 `static mut` 改为 `SpinLock<NwdRxtxState>`
- [ ] `SpStore` (sp_context.rs) 从 `UnsafeCell` 改为 `SpinLock` 保护（或 per-CPU 分片）
- [ ] 新增 `SpinLock<ShareRecordStore>` 全局 share 记录管理
- [x] `NWD_RXTX` 从 `static mut` 改为 `SpinLock<NwdRxtxState>`
- [x] `SpStore` (sp_context.rs) 从 `UnsafeCell` 改为 `SpinLock` 保护（或 per-CPU 分片）
- [x] 新增 `SpinLock<ShareRecordStore>` 全局 share 记录管理(`SpinLock<SpmcShareRecordStore>` in `spmc_handler.rs`)

**可复用的 NS-proxy 代码**:
| NS-proxy 文件 | 复用方式 | 说明 |
Expand Down Expand Up @@ -975,18 +975,18 @@ FFA_MEM_RECLAIM → handle_mem_reclaim()
```

**测试**:
- [ ] NWd MEM_SHARE → SPMC 记录 ShareRecord
- [ ] SP MEM_RETRIEVE → Secure Stage-2 映射验证
- [ ] SP MEM_RELINQUISH → Secure Stage-2 unmap 验证
- [ ] NWd MEM_RECLAIM → ShareRecord 删除
- [ ] MEM_RECLAIM while retrieved → DENIED
- [ ] 并发: 两个 CPU 同时 MEM_SHARE 不死锁
- [x] NWd MEM_SHARE → SPMC 记录 ShareRecord
- [x] SP MEM_RETRIEVE → Secure Stage-2 映射验证
- [x] SP MEM_RELINQUISH → Secure Stage-2 unmap 验证
- [x] NWd MEM_RECLAIM → ShareRecord 删除
- [x] MEM_RECLAIM while retrieved → DENIED
- [x] 并发: 两个 CPU 同时 MEM_SHARE 不死锁(STAGE2_LOCK 序列化 map/unmap)

**验收**:
- [ ] `dispatch_ffa()` 处理 MEM_SHARE/LEND/RETRIEVE/RELINQUISH/RECLAIM
- [ ] Secure Stage-2 动态 map/unmap 工作
- [ ] ShareRecord 全局管理（SpinLock 保护）
- [ ] 单元测试全部通过
- [x] `dispatch_ffa()` 处理 MEM_SHARE/LEND/RETRIEVE/RELINQUISH/RECLAIM(另含 DONATE)
- [x] Secure Stage-2 动态 map/unmap 工作(`Stage2Walker` + `STAGE2_LOCK`)
- [x] ShareRecord 全局管理（SpinLock 保护）
- [x] 单元测试全部通过(`test_spmc_handler` 182 assertions)

**预估**: 2-3 周

Expand Down Expand Up @@ -1014,14 +1014,14 @@ FFA_MEM_RECLAIM → handle_mem_reclaim()
- SET 后触发 vIRQ 唤醒目标 SP（通过现有 `inject_pending_virq()` 机制）

**测试**:
- [ ] BITMAP_CREATE/DESTROY 生命周期
- [ ] BIND + SET + GET 端到端
- [ ] INFO_GET 返回正确的 SP ID 列表
- [ ] 未 BIND 的 SET → DENIED
- [x] BITMAP_CREATE/DESTROY 生命周期
- [x] BIND + SET + GET 端到端
- [x] INFO_GET 返回正确的 SP ID 列表
- [x] 未 BIND 的 SET → DENIED

**验收**:
- [ ] 6 个通知 FF-A 调用在 SPMC 侧全部实现
- [ ] 单元测试通过
- [x] 6 个通知 FF-A 调用在 SPMC 侧全部实现(BITMAP_CREATE/DESTROY/BIND/UNBIND/SET/GET/INFO_GET)
- [x] 单元测试通过(`test_ffa` + `test_spmc_handler` 通知子集全 PASS)

**预估**: 1-2 周

Expand Down Expand Up @@ -1434,10 +1434,10 @@ GitHub Actions配置：

### 8.2 工程成功标准

- [ ] 代码质量：通过clippy无警告
- [x] 代码质量：通过clippy无警告(CI: Check/Clippy/Format pass)
- [ ] 测试覆盖率：核心模块>80%
- [ ] 文档完善：每个模块有设计文档
- [ ] CI/CD：自动化测试和构建
- [x] CI/CD：自动化测试和构建(GitHub Actions: Check/Clippy/Format + QEMU Unit Tests)

### 8.3 社区成功标准

Expand Down
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