Re:_[Help]_bhyve:_bootrom_alloc:_vm_mmap _mapseg:_Invalid_argument_—_NVIDIA_passthrough_with_C orvin's_branch_on_FreeBSD_15.0

Reply: Mario Marietto : "Re:_**[Help]_bhyve:_bootrom_alloc:_vm_mmap_mapseg:_I nvalid_argument_—_NVIDIA_passthrough_with_Corvin's_branch_ on_FreeBSD_15.0**"
Reply: Corvin K�hne : "Re: **[Help] bhyve: bootrom_alloc: vm_mmap_mapseg: Invalid argument � NVIDIA passthrough with Corvin's branch on FreeBSD 15.0**"
In reply to: Corvin K�hne : "Re: **[Help] bhyve: bootrom_alloc: vm_mmap_mapseg: Invalid argument � NVIDIA passthrough with Corvin's branch on FreeBSD 15.0**"
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From: Matthew Grooms <mgrooms_at_shrew.net>
Date: Fri, 05 Jun 2026 16:20:47 UTC

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