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Thu, 26 Jun 2025 16:33:43 -0700 (PDT) Received: from MN2PR20MB3168.namprd20.prod.outlook.com ([2603:1036:302:40c1::5]) by smtp.gmail.com with ESMTPSA id e9e14a558f8ab-3df49fd566dsm2708595ab.1.2025.06.26.16.33.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jun 2025 16:33:42 -0700 (PDT) From: Robert Cocker To: Nuno Teixeira , Stephan Althaus CC: "virtualization@freebsd.org" Subject: Re: bhyve: GPU passthrough for Nvidia cards Thread-Topic: bhyve: GPU passthrough for Nvidia cards Thread-Index: AWw1NGUwNXUheFQ2uQax0hKrn7q3HTg3MDQxZ3hGU27aZgB13w== X-MS-Exchange-MessageSentRepresentingType: 1 Date: Thu, 26 Jun 2025 23:33:41 +0000 Message-ID: References: <4785074a005d66ed92e5670b9fa4ce45a5d65eba.camel@FreeBSD.org> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-Exchange-Organization-SCL: -1 X-MS-TNEF-Correlator: X-MS-Exchange-Organization-RecordReviewCfmType: 0 x-ms-reactions: allow Content-Type: multipart/alternative; boundary="_000_MN2PR20MB31681D1566D16CA5E9DA7B5DFE7AAMN2PR20MB3168namp_" List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 X-Rspamd-Queue-Id: 4bSw496jDsz3PYK X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US] --_000_MN2PR20MB31681D1566D16CA5E9DA7B5DFE7AAMN2PR20MB3168namp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hey group, I am also interested in this space of base system. Has anyone pulled the do= cumentation for what is currently available for GPU drivers for base system Robert ________________________________ From: owner-freebsd-virtualization@FreeBSD.org on behalf of Nuno Teixeira Sent: Thursday, June 26, 2025 4:47:36 PM To: Stephan Althaus Cc: virtualization@freebsd.org Subject: Re: bhyve: GPU passthrough for Nvidia cards Hello Stephan, A year a go I did try passtrhu a dedicated nvidia GTX 1650 while using inte= grated intel graphics (laptop Lenovo Legion 5 15IMH05). Windows detected ca= rd but nvidia drivers install failed at some point. On this laptop I did setup bios to use integrated graphics so I can passthr= u dedicated nvidia. Think I will give a new try since I follow main. Are you using laptops for this usecase? Thanks! Stephan Althaus > escreveu (quinta, 26/06/2025 =E0(s) 15:50): On 6/26/25 15:07, Corvin K=F6hne wrote: > Hi, > > I'm currently experimenting with GPU passthrough for Nvidia cards. All I = have to > do to make it work with Ubuntu guests, is setting the INTPIN register to = any > value instead of just 0x00. Unfortunately, I'm unfamiliar with PCI legacy > interrupts and how they work. The INTLINE register is set to 0xFF (unconn= ected). > So, is it safe to set the INTPIN register or what has to be done for it t= o work > as expected? > > Any help would be appreciated. > > Hi! You surely mean 'newer' NVidia cards, as my GT1030 works with FreeBSD 14.2 Host and ubuntu guest, NVIdia driver 570, (and Win guest btw) out-of-the-box, no kernel/driver modding... Regards, Stephan -- Nuno Teixeira FreeBSD UNIX: Web: https://FreeBSD.org --_000_MN2PR20MB31681D1566D16CA5E9DA7B5DFE7AAMN2PR20MB3168namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hey group,

I am also interested in this space of base system. Has anyone pulled the do= cumentation for what is currently available for GPU drivers for base system=  

Robert
From: owner-freebsd-virtual= ization@FreeBSD.org <owner-freebsd-virtualization@FreeBSD.org> on beh= alf of Nuno Teixeira <eduardo@freebsd.org>
Sent: Thursday, June 26, 2025 4:47:36 PM
To: Stephan Althaus <Stephan.Althaus@duedinghausen.eu>
Cc: virtualization@freebsd.org <virtualization@freebsd.org> Subject: Re: bhyve: GPU passthrough for Nvidia cards
 
Hello Stephan,

A year a go I did try passtrhu a dedicated nvidia GTX 1650 while using inte= grated intel graphics (laptop Lenovo Legion 5 15IMH05). Windows detected ca= rd but nvidia drivers install failed at some point.
On this laptop I did setup bios to use integrated graphics so I can passthr= u dedicated nvidia.

Think I will give a new try since I follow main.

Are you using laptops for this usecase?

Thanks!

Stephan Althaus <Stephan.Althaus@duedinghausen.eu&g= t; escreveu (quinta, 26/06/2025 =E0(s) 15:50):
On 6/26/25 15:07, Corvin K=F6hne wrote:
> Hi,
>
> I'm currently experimenting with GPU passthrough for Nvidia cards. All= I have to
> do to make it work with Ubuntu guests, is setting the INTPIN register = to any
> value instead of just 0x00. Unfortunately, I'm unfamiliar with PCI leg= acy
> interrupts and how they work. The INTLINE register is set to 0xFF (unc= onnected).
> So, is it safe to set the INTPIN register or what has to be done for i= t to work
> as expected?
>
> Any help would be appreciated.
>
>
Hi!

You surely mean 'newer' NVidia cards, as my GT1030 works with FreeBSD
14.2 Host and ubuntu guest, NVIdia driver 570, (and Win guest btw)
out-of-the-box, no kernel/driver modding...

Regards,

Stephan





--
Nuno Teixeira
FreeBSD UNIX:  <eduardo@FreeBSD.org>= ;   Web:  https://FreeBSD.org
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