CPU: Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz

MOBO:         Manufacturer: ASUSTeK COMPUTER INC.
        Product Name: P8H61-M LX3 PLUS R2.0
 

qemu-kvm-0.12.1.2-2.506.el6_10.1.x86_64
 

This is weird but the only OS I've found this machine doesn't work with is Windows 2019 Server.  I have no idea, when 2008, 2012 work fine.  Windows 2019 also works with the same software (KVM version) on a different MOBO and CPU, so I suspect it is something CPU or MOBO related that is not playing nicely.

Solution:

Windows 2016+ (eg 2019) will NOT boot without using the "-cpu host" parameter which passes through the host CPU. 

On most machines I run, especially server hardware this doesn't seem to matter (eg. I normally just use the default QEMU-CPU and all is fine even on 2019 and 2016).

Here is an example:

qemu-system-x86_64 --enable-kvm -cpu host -smp 8 -m 8192 -drive format=raw,file=the-file.img

When booting my Windows 2019 template all I get is the Windows logo:

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