[Info-vax] kvm/qemu for OpenVMS ?

[gah4]

On Saturday, April 1, 2023 at 12:18:27 PM UTC-7, I Kea wrote:
> I would like to use my VAX station currently running OpenVMS 7.3 as an 
> hypervisor to install and run inside it a little instance of NetBSD/vax... 
 
> Is there any ( free ) virtualization software for OpenVMS like the kvm 
> or qemu for Linux, or does the VAX processor lack capabilities of this kind ? 
 
There are rules on virtualizable architectures, but I am not sure about VAX.
The important rule is that you have to be able to not tell if you are in user
or supervisor mode.  Virtual machines run in user mode, where the
hypervisor emulates any privileged instructions.  There are some where
the mode bits are visible, and so technically can't be truly virtualizable.

In any case, I don't know that anyone has written one for VAX.