配置需求
- 目標主機有USB3.0 xHCI主機控制器，支持調試
[Port1]
Is Port User Connectable: yes
Is Port Debug Capable: yes
Companion Port Number: 3
Companion Hub Symbolic Link Name: USB#ROOT_HUB30#5&32bab638&0&0#{…}
Protocols Supported:
USB 1.1: no
USB 2.0: no
USB 3.0: yes
- host主機支持USB3.0 xHCI主機控制器(使用UsbView查看)
- USB 3.0 調試線(國外購買地址)（可以用普通USB3.0 公對公線改造，剪掉紅綠百三根線）
先從淘寶買一根USB 3的A對A連線，有時也稱公對公連線，很便宜。這根線需要加工一下才可以支持調試，加工的方法是選取線的某個位置，剝開外皮，然後把其中的紅綠白三根線剪斷，然後包上就可以了。USB 3電纜的線是有固定顏色的，如圖3所示，
其中SDP是Shielded Differential Pair的縮寫，即屏蔽起來的差分信號線，是USB 3.0的數據線，UTP是Unshielded Twisted Pair的縮寫，即未屏蔽的雙絞線，是USB1/2使用的數據線，所謂的D+，D-。要做的加工其實就是把2.0的三根弦剪斷。剝開後，很容易找到紅綠白三根，膽大心細，下剪子吧:-)。
- 兩臺主機系統必須是Win8以上
On the host computer, an xHCI (USB 3.0) host controller
On the target computer, an xHCI (USB 3.0) host controller that supports debugging
步驟
在目標主機配置調試模式。
命令：
bcdedit /debug on
bcdedit /dbgsettings usb targetname:TargetName
//如果目標主機有多個xHCI主機控制器，則需要配置需要使用的，b.d.f在usbview中可以看到
bcdedit /set "{dbgsettings}" busparams b.d.f
//重啓主機
使用msconfig配置，引導，高級模式，勾選調試，選擇USB模式，USB目標名：usbdbg
host主機配置。
第一次配置，如果host是X64，開啓X64 windbg，如果是x86，選擇開啓x86 windbg，需要管理員權限運行。
Ctrl+K，選擇USB，填入目標主機配置的名字（usbdbg），確認，等待。
Microsoft (R) Windows Debugger Version 10.0.14321.1024 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.
Using USB for debugging
Waiting to reconnect...
USB: Write opened
當將USB調試線插入host主機接口時，會自動安裝相關驅動（usb2dbg等，管理員，位數等要求的原因）。
然後出現USB: Write opened表示與目標主機連接成功。
按下Ctrl+break，即可開始調試目標主機了
Connected to Windows 10 16299 x64 target at (Tue Dec 12 09:47:18.535 2017 (UTC + 8:00)), ptr64 TRUE
Kernel Debugger connection established.
************* Symbol Path validation summary **************
Response Time (ms) Location
Deferred SRV*e:\symbols* http://msdl.microsoft.com/download/symbols
Deferred SRV*e:\symbols*http://msdl.microsoft.com/download/symbols
Symbol search path is: SRV*e:\symbols* http://msdl.microsoft.com/download/symbols;SRV*e:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows 10 Kernel Version 16299 MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 16299.15.amd64fre.rs3_release.170928-1534
Machine Name:
Kernel base = 0xfffff800`9e21d000 PsLoadedModuleList = 0xfffff800`9e57efb0
Debug session time: Tue Dec 12 09:47:12.452 2017 (UTC + 8:00)
System Uptime: 3 days 17:11:46.032
WARNING: Whitespace at end of path element
************* Symbol Path validation summary **************
Response Time (ms) Location
Deferred SRV*e:\symbols* http://msdl.microsoft.com/download/symbols
Deferred SRV*e:\symbols*http://msdl.microsoft.com/download/symbols
Break instruction exception - code 80000003 (first chance)
*******************************************************************************
* *
* You are seeing this message because you pressed either *
* CTRL+C (if you run console kernel debugger) or, *
* CTRL+BREAK (if you run GUI kernel debugger), *
* on your debugger machine's keyboard. *
* *
* THIS IS NOT A BUG OR A SYSTEM CRASH *
* *
* If you did not intend to break into the debugger, press the "g" key, then *
* press the "Enter" key now. This message might immediately reappear. If it *
* does, press "g" and "Enter" again. *
* *
*******************************************************************************
nt!DbgBreakPointWithStatus:
fffff800`9e386c60 cc int 3
連接成功，設備管理中出現USB Debug Connection Device。
參考：
- setting-up-a-usb-3-0-debug-cable-connection
- USB3 Kernel Debugging with Dell PowerEdge 13G Servers
- http://blog.techlab-xe.net/archives/1961
- 使用USB3.0調試Windows 8