Re:_**[Help]_bhyve:_bootrom_alloc:_vm_mmap_mapseg:_I nvalid_argument_—_NVIDIA_passthrough_with_Corvin's_branch_ on_FreeBSD_15.0**

--> I was about to attempt this myself. Are all the required patches
present in 14.4 as well ?

It would be nice if you can apply the Corvin patches for FreeBSD 15.x and
tell if you get the error "bhyve: bootrom_alloc: vm_mmap_mapseg: Invalid
argument". This will help to understand if there is a problem between
Corvin's code and some component of FreeBSD 15.x or if it belongs only to
me.

Mario.


On Fri, Jun 5, 2026 at 6:21 PM Matthew Grooms <mgrooms@shrew.net> wrote:

> On 6/5/26 01:34, Corvin Köhne wrote:
> > On Thu, 2026-06-04 at 13:23 +0200, Mario Marietto wrote:
> >>          Hi everyone,
> >>   I'm trying to get NVIDIA GPU passthrough working with bhyve on
> FreeBSD 15.0-
> >> RELEASE-p5, using Corvin Köhne's nvidia-wip branch:
> >>
> https://github.com/Beckhoff/freebsd-src/tree/phab/corvink/15.0/nvidia-wip
> >>   The VM fails to start with the following error before the guest even
> boots:
> >>   bhyve: bootrom_alloc: vm_mmap_mapseg: Invalid argument
> > NVIDIA GPU passthrough should work with stock 15.0, no patches required.
>
> I was about to attempt this myself. Are all the required patches present
> in 14.4 as well?
>
> Thanks,
>
> -Matthew
>
>
>

-- 
Mario.