Date: Thu, 26 Jun 2025 15:07:34 +0200 From: Corvin =?ISO-8859-1?Q?K=F6hne?= <corvink@FreeBSD.org> To: freebsd-virtualization@freebsd.org Subject: bhyve: GPU passthrough for Nvidia cards Message-ID: <4785074a005d66ed92e5670b9fa4ce45a5d65eba.camel@FreeBSD.org>
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[-- Attachment #1 --] 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 (unconnected). So, is it safe to set the INTPIN register or what has to be done for it to work as expected? Any help would be appreciated. -- Kind regards, Corvin [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEgvRSla3m2t/H2U9G2FTaVjFeAmoFAmhdRhYACgkQ2FTaVjFe AmreXA/+MfZTTqB4tvJDjf4AJAyZzpRfgtX2qCAu4QkEBzbLpQCmO5gKIdqy2JXi S3LVHLRcCjFOvyuZHLjzwQ6x7JytOucwZSDetR/YWlw6WUNh6qiZr5O5nIGClwZg GP8I3BbtbaDXIIvZsHGZBoV4kOAtdyL5oXXtvZZk2zEufcJO93d6wM9v754M8V0v MSERARtEyfNSRAL+X16N/KuhkGjDncPtxH2g7+S2KeZMWJnZOWv7cSMmQPiomGLW sXocIOccHPk+TmfpPQRBrDcXUtObE8qpw/O4aF0DsI70hjq6VmCcOEaagfKkb6KP jb0aewbE7kH/d2O85T2nRq8JdIgtWCiRc2Q0SdK3vehiZLn1K2VX/idwSGm6eRgI ItkimGYJpXO3MyVS7/9svGXlxSVtAJ16mcO7s/h81hc628l7gGN2AjjStunyR7e4 4yX5XJGM8NVj86AOFiJbx+w1zJyMy/9Pc4FI4lF1Q0j0U3CFfV+77139Q2AvKbaT lAStzDAZbDOeaa+aA/gWG5qk/bPdfrlzIy6WZWHXN1obCo5eXgjBOxcaoUi8or8T AJfIrSvljbwZf5Hh3w0fv4KC/jc6jhJjp5/ecl+FYTphp0glWj9YO9iOBBIQL8zY 3fCJoXwm9b15jQfA8/50que00l9I2bjwcVheOuD4p5JJM7YnDjg= =krP2 -----END PGP SIGNATURE-----
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