[Info-vax] kvm/qemu for OpenVMS ?

[Chris Townley]

On 02/04/2023 00:15, gah4 wrote:
> 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.
> 
> 

Is there nota VAX version of NetBSD? Could you install that on an 
alternate disk, then boot that?

-- 
Chris