MacBook – how to turn on hardware virtualization on Macbook pro with BootCamp with no OSX

I believe that this is a problem with Windows as opposed to Boot Camp. Windows, if I remember correctly looks for the serial numbers and unique identifiers when it starts up and has a conniption if they're not what it's expecting. I ran into this a few years ago when I had the logic board replaced on my iMac. I think your best bet might be to reinstall Windows on your new machine and migrate your data and settings over within Windows (that might also help Windows by giving a fresh, healthy install).

Actually, VMware Fusion does support hardware-assisted breakpoints. However, gdb has trouble creating them while the program is not running (which was my issue; you can issue break commands even when the program is off, but you need it to be running for hbreak to work, or something along these lines).