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Allow PCI VGA devices to be detached.
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Authored by grehan on May 2 2018, 5:20 PM.
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Details

Summary

GPUs often have VGA PCI device IDs and are probed/attached
by the VGA driver. Allow them to be detached so they can
be presented as passthru devices to VM guests.

Diff Detail

Repository
rS FreeBSD src repository - subversion
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Event Timeline

jhb added inline comments.
sys/dev/pci/vga_pci.c
290 ↗(On Diff #42069)

Cosmetic nits. Existing style in this file is to use 'error' instead of 'rc' and to not do assignments inside of conditionals, so:

int error;

error = bus_generic_detach(dev);
if (error == 0)
    errror = device_delete_children(dev);
return (error);
This revision is now accepted and ready to land.May 2 2018, 5:25 PM

How do you trigger a call to this DEVMETHOD?

How do you trigger a call to this DEVMETHOD?

  1. devctl detatch vga0
This revision now requires review to proceed.May 2 2018, 5:47 PM
This revision is now accepted and ready to land.May 2 2018, 5:51 PM
This revision was automatically updated to reflect the committed changes.