install/55390: Can't install NetBSD 9 (or 8) as virtual machine under KVM using Q35 Hardware Profile

[joselito%sharklasers.com@localhost]

>Number:         55390
>Category:       install
>Synopsis:       Can't install NetBSD 9 (or 8) as virtual machine under KVM using Q35 Hardware Profile
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 15 16:10:00 +0000 2020
>Originator:     Joselito sem Limites
>Release:        
>Organization:
Hermes e Renato, MTV
>Environment:
Machine either doesn't even boot or do not has working disk and/or network support.
>Description:
Can't install NetBSD 9.0 (or 8.2) as virtual machine under KVM using Q35 Hardware Profile. Tested amd64 only.

KVM version used for tests is 4.1.0; libvirt 5.5.0. Linux (kernel) version 5.2.9; Arch.
>How-To-Repeat:
try to install NetBSD as a guest OS in a machine running any Linux distro with proper KVM support and use Q35 as hardware profile.
>Fix: