Kernel debugging with VirtualBox

Instructions

Retrieved from https://www.virtualbox.org/manual/topics/AdvancedTopics.html

Configure VM while being powered off

From a regular command prompt:

set VM_NAME=Win10_22H2
set PATH=%PATH%;C:\Program Files\Oracle\VirtualBox

VBoxManage.exe showvminfo %VM_NAME%
VBoxManage.exe modifyvm %VM_NAME% --paravirt-debug "enabled=1"

Then reboot.

VM configuration while running

From an admin command prompt within the VM:

bcdedit /dbgsettings net hostip:5.5.5.5 port:50000 key:1.2.3.4
bcdedit /set debug on
bcdedit /set testsigning on

WinDBG connection from host

Enable driver debug logging

Either, break WinDBG execution and send the following command to enable display of debug messages: kd>

ed nt!Kd_IHVDRIVER_Mask 0xffffffff

Or, merge the following IHVDRIVER-debugging.reg file on the target machine:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Debug Print Filter]
"IHVDRIVER"=dword:ffffffff