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#requires -Version 5.1
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<#
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.SYNOPSIS
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linux-compat — UTSM+Linux 双内核兼容层端到端（docs/RE/test-cases/linux-compat.md）
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.DESCRIPTION
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动态检测 VMM/Linux guest 可用性，自动分流两条验证路径：
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路径 A（guest VMX 可用，真机/KVM）：
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[UTSM] VMM init ok → VMM self-test PASS → bzImage 解析 → IPC shm →
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vmlaunch → Linux version → initramfs init → daemon park →
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[LNXC] service ready → DSK → shell dev_tests → dsl 命令实测
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路径 B（QEMU WHPX/TCG 无 nested VMX —— 本环境预期路径）：
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[UTSM] VMM unavailable → Linux loader 跳过 → DSK 正常启动不崩溃 →
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shell 收到 linux_compat 服务表 → dsl 报告运行态不可用 → desktop。
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A5.1~A5.12 标记 SKIP（环境限制，非产品缺陷）。
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依据 ISO/run_qemu.bat 说明：WHPX 下 VMXON 会触发致命 hypervisor exit，
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因此框架默认 -cpu qemu64,-vmx 关闭 guest VMX CPUID，UTSM 走优雅降级。
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若未来 WHPX/KVM 支持 nested VMX，可用 -Cpu 'max' 复测路径 A。
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退出码：全部通过 0，任一 FAIL 1。
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#>
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param(
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[switch]$Build,
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[string]$Cpu = ''
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)
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$ErrorActionPreference = 'Stop'
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. (Join-Path $PSScriptRoot 'lib\QemuTest.ps1')
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Initialize-QemuTest -Build:$Build
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$result = New-TestCaseResult 'linux-compat'
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Set-DeshabFirstInit -First 1 -DevMode 1
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Set-DeshabAutoexec -Lines @('ver', 'exit')
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$s = Start-QemuSession -Name 'linux-compat' -Cpu $Cpu
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try {
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# ---- 分流点：VMM 自检通过 还是 VMM 不可用 ----
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$fork = Wait-QemuLog -Session $s -Patterns @(
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'[UTSM] VMM self-test PASS',
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'[UTSM] VMM unavailable'
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) -TimeoutSeconds 180
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if ($fork -eq '[UTSM] VMM self-test PASS') {
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# ================= 路径 A：VMX 可用，完整双内核流程 =================
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Write-Host "`n--- 路径 A: guest VMX 可用，验证完整 Linux 兼容层 ---"
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$hit = Wait-QemuLog -Session $s -Patterns @('=== 自动测试完成 ===', '[PANIC]') -TimeoutSeconds 300
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$log = Read-QemuLogText $s.LogPath
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$result.LogPath = $s.LogPath
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# A5.1 ~ A5.7 启动链
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Assert-QemuLog $result $log -Ordered @(
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'[UTSM] VMM init ok',
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'[UTSM] VMM self-test PASS',
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'[LINUX] found bzImage module:',
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'[UTSM] Linux loader init ok',
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'[UTSM] IPC shm init ok',
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'[VMM] launching guest',
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'Linux version',
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'[utsm-linux] init started',
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'[LINUX] guest parked (daemon ready)',
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'[LNXC] service ready',
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'[DSK] boot',
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'[shell] linux_compat service ok'
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) -MustNotContain @('[PANIC]')
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if (-not $hit -or $hit -eq '[PANIC]') {
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Add-TestCheck $result 'A5.7: DSK/shell 接管' 'FAIL' 'dev_tests did not complete'
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} else {
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Add-TestCheck $result 'A5.7: DSK/shell 接管' 'PASS'
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}
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# A5.8 ~ A5.12 shell dsl 交互（dev_mode 串口镜像开启）
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if ($hit -eq '=== 自动测试完成 ===') {
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Start-Sleep -Seconds 1
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Send-QemuText -Session $s -Text 'dsl' -Enter
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$h1 = Wait-QemuLog -Session $s -Patterns @('Linux 兼容层已就绪') -TimeoutSeconds 60
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if ($h1) { Add-TestCheck $result 'A5.8: dsl 状态查询' 'PASS' }
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else { Add-TestCheck $result 'A5.8: dsl 状态查询' 'FAIL' 'missing 兼容层已就绪' }
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Send-QemuText -Session $s -Text 'dsl ls' -Enter
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$h2 = Wait-QemuLog -Session $s -Patterns @('bin', 'etc', 'deshab#') -TimeoutSeconds 60
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if ($h2) { Add-TestCheck $result 'A5.9: dsl ls 目录列表' 'PASS' }
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else { Add-TestCheck $result 'A5.9: dsl ls 目录列表' 'FAIL' 'no listing output' }
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Send-QemuText -Session $s -Text 'dsl uname -a' -Enter
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$h3 = Wait-QemuLog -Session $s -Patterns @('Linux') -TimeoutSeconds 60
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if ($h3) { Add-TestCheck $result 'A5.10: dsl uname -a' 'PASS' }
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else { Add-TestCheck $result 'A5.10: dsl uname -a' 'FAIL' 'no uname output' }
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Send-QemuText -Session $s -Text 'dsl nosuchprog' -Enter
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$h4 = Wait-QemuLog -Session $s -Patterns @('deshab# ') -TimeoutSeconds 60
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Start-Sleep -Seconds 1
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$log2 = Read-QemuLogText $s.LogPath
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if ($h4 -and -not $log2.Contains('[PANIC]')) {
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Add-TestCheck $result 'A5.12: dsl 错误路径不崩溃' 'PASS'
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} else {
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Add-TestCheck $result 'A5.12: dsl 错误路径不崩溃' 'FAIL' 'shell did not recover'
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}
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Send-QemuKeys -Session $s -Keys @('esc')
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$h5 = Wait-QemuLog -Session $s -Patterns @('desktop ready') -TimeoutSeconds 150
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if ($h5) { Add-TestCheck $result 'A5.x: Esc 后到 desktop' 'PASS' }
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else { Add-TestCheck $result 'A5.x: Esc 后到 desktop' 'FAIL' 'no desktop ready' }
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}
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Add-TestNote $result '路径 A 执行：guest VMX 可用（真机/KVM 环境）'
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}
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elseif ($fork -eq '[UTSM] VMM unavailable') {
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# ================= 路径 B：无 nested VMX，优雅降级 =================
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Write-Host "`n--- 路径 B: guest 无 VMX（QEMU 预期），验证优雅降级 ---"
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$hit = Wait-QemuLog -Session $s -Patterns @('=== 自动测试完成 ===', '[PANIC]') -TimeoutSeconds 240
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$log = Read-QemuLogText $s.LogPath
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$result.LogPath = $s.LogPath
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# 降级锚点 + 系统继续正常启动
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Assert-QemuLog $result $log -MustContain @('[UTSM] VMM unavailable')
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Assert-QemuLog $result $log -Ordered @(
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'[UTSM] SELFTEST PASS',
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'[UTSM] VMM unavailable',
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'[DSK] boot',
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'[DSK] dev_mode=1 (developer auto-test)',
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'[shell] boot',
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'[shell] linux_compat service ok'
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) -MustNotContain @('[PANIC]')
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if ($hit -eq '=== 自动测试完成 ===') {
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Add-TestCheck $result '降级路径: dev_tests 完成（Linux 缺失不阻塞启动）' 'PASS'
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} else {
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Add-TestCheck $result '降级路径: dev_tests 完成（Linux 缺失不阻塞启动）' 'FAIL' "hit=$hit"
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}
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# dsl 运行态不可用报告（服务表已传递，is_available()=0）
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if ($hit -eq '=== 自动测试完成 ===') {
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Start-Sleep -Seconds 1
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Send-QemuText -Session $s -Text 'dsl' -Enter
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$h = Wait-QemuLog -Session $s -Patterns @('linux_compat: not initialized') -TimeoutSeconds 40
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if ($h) { Add-TestCheck $result '降级路径: dsl 报告运行态不可用' 'PASS' }
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else { Add-TestCheck $result '降级路径: dsl 报告运行态不可用' 'FAIL' 'missing linux_compat: not initialized' }
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Send-QemuKeys -Session $s -Keys @('esc')
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$h2 = Wait-QemuLog -Session $s -Patterns @('desktop ready') -TimeoutSeconds 150
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if ($h2) { Add-TestCheck $result '降级路径: Esc 后经 cmd 到 desktop' 'PASS' }
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else { Add-TestCheck $result '降级路径: Esc 后经 cmd 到 desktop' 'FAIL' 'no desktop ready' }
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}
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# A5.1~A5.12 环境性跳过
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foreach ($t in @('A5.1 VMM self-test', 'A5.2 bzImage 加载', 'A5.3 EPT+vmlaunch',
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'A5.4 Linux 内核启动', 'A5.5 init 脚本', 'A5.6 daemon park',
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'A5.8 dsl 状态就绪', 'A5.9 dsl ls', 'A5.10 dsl uname',
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'A5.11 dsl cat hostname', 'A5.12 dsl 错误路径')) {
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Add-TestCheck $result $t 'SKIP' 'QEMU WHPX/TCG 无 nested VMX（见 run_qemu.bat 注释），需真机或 KVM 复测'
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}
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Add-TestCheck $result 'A5.7: Linux 缺失时 DSK 正常接管' 'PASS'
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Add-TestNote $result '路径 B 执行：QEMU 无 nested VMX，Linux guest 不可用属预期环境限制'
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Add-TestNote $result '如需完整验证：真机（VT-x）或 Linux KVM (-enable-kvm -cpu host) 下以 -Cpu max 重跑'
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}
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else {
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$result.LogPath = $s.LogPath
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Add-TestCheck $result 'VMM 分流探测' 'FAIL' 'neither VMM self-test PASS nor VMM unavailable within 180s'
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}
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} finally {
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Stop-QemuSession $s
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Restore-DeshabScenario
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}
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Write-TestCaseResult $result
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if ($result.Status -eq 'FAIL') { exit 1 } else { exit 0 }
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