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List: freebsd-virtualization
Subject: RE: Virtio-win driver (virtio-blk and virtio-scsi) don't work when they are used on bhyve with Windo
From: Corvin Köhne <C.Koehne () beckhoff ! com>
Date: 2022-03-28 12:59:32
Message-ID: 751e6ce5c5b641e899a3d9f94f3b4605 () beckhoff ! com
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Hi Mario,
> Maybe I can make a lighter /boot/loader.conf file,excluding the USB controllers.....
You can always exclude pptdevs from /boot/loader.conf.
Sadly, it's nowhere documented properly.
FreeBSD is able to switch to the ppt driver at runtime.
1. Remove the pptdevs line from /boot/loader.conf
2. Reboot your system
3. "devctl detach pci0:0:20:0"
4. "devctl set driver pci0:0:20:0 ppt"
5. "bhyve … -s 20,passthru,0/20/0 … vmname"
Sometimes it's possible to successfully reattach a driver:
1. "bhyve … -s 20,passthru,0/20/0 … vmname"
2. "bhyvectl --destroy --vm=vmname"
3. "devctl detach pci0:0:20:0"
4. "devctl set driver pci0:0:20:0 xhci"
Best regards
Corvin
Beckhoff Automation GmbH & Co. KG | Managing Director: Dipl. Phys. Hans Beckhoff
Registered office: Verl, Germany | Register court: Guetersloh HRA 7075
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<p class="MsoNormal">Hi Mario,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">> Maybe I can make a lighter /boot/loader.conf file,excluding \
the USB controllers.....<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">You can always exclude pptdevs from \
/boot/loader.conf.<o:p></o:p></p> <p class="MsoNormal">Sadly, it's nowhere documented \
properly.<o:p></o:p></p> <p class="MsoNormal">FreeBSD is able to switch to the ppt \
driver at runtime.<o:p></o:p></p> <p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo1">Remove \
the pptdevs line from /boot/loader.conf<o:p></o:p></li><li class="MsoListParagraph" \
style="margin-left:0in;mso-list:l1 level1 lfo1">Reboot your system<o:p></o:p></li><li \
class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo1">"devctl \
detach pci0:0:20:0"<o:p></o:p></li><li class="MsoListParagraph" \
style="margin-left:0in;mso-list:l1 level1 lfo1">"devctl set driver pci0:0:20:0 \
ppt"<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 \
level1 lfo1">"bhyve … -s 20,passthru,0/20/0 … vmname"<o:p></o:p></li></ol> <p \
class="MsoNormal"><o:p> </o:p></p> <p class="MsoNormal">Sometimes it's possible \
to successfully reattach a driver:<o:p></o:p></p> <p \
class="MsoNormal"><o:p> </o:p></p> <ol style="margin-top:0in" start="1" \
type="1"> <li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 \
lfo2">"bhyve … -s 20,passthru,0/20/0 … vmname"<o:p></o:p></li><li \
class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo2">"bhyvectl \
--destroy --vm=vmname"<o:p></o:p></li><li class="MsoListParagraph" \
style="margin-left:0in;mso-list:l0 level1 lfo2">"devctl detach \
pci0:0:20:0"<o:p></o:p></li><li class="MsoListParagraph" \
style="margin-left:0in;mso-list:l0 level1 lfo2">"devctl set driver pci0:0:20:0 \
xhci"<o:p></o:p></li></ol> <p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards<o:p></o:p></p>
<p class="MsoNormal">Corvin<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<br>
<span style="FONT-FAMILY: Arial, Helvetica, sans-serif; FONT-SIZE: 8pt">Beckhoff \
Automation GmbH & Co. KG | Managing Director: Dipl. Phys. Hans Beckhoff<br> \
Registered office: Verl, Germany | Register court: Guetersloh HRA 7075</span> <br> \
<br> </body>
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