Re: detecting userconf disable

[Andrew Doran <ad%netbsd.org@localhost>]

On Fri, Apr 17, 2020 at 10:49:53PM +0200, Manuel Bouyer wrote:

> Hello,
> As part of my Xen HVM work, I'd like to be able to be able to disable Xen
> support from userconf to boot as a plain x86 emulated host
> 
> The obvious way would be to disable the
> hypervisor*     at mainbus?             # Xen hypervisor
> device. But, for CPU setup I need to do some Xen setup before attaching the
> hypervisor device. And I need CPUs to be set up to attach the hypervisor
> device. So I have a xen_hvm_init() function called early.
> Is there a way, in this function, to detect if hypervisor has been disabled by
> userconf ?

I know little about userconf but RB_MD4 (boot -4) is free on x86 which may
be another option.

Andrew