ok,
Well, the bug report I read said that all addr values must be 00.0 for
it all to work.
That fixed it for me.
On 6/23/20 11:48 PM, Alex Williamson wrote:
On Tue, 23 Jun 2020 23:33:22 -0400
Roger Lawhorn <r...@twc.com> wrote:
I have the answer.
I had to change my lines from:
-device
vfio-pci,host=0c:00.0,bus=root_port1,addr=00.0,multifunction=on,x-vga=on \
-device vfio-pci,host=0c:00.1,bus=root_port2,addr=00.1,multifunction=on \
-device vfio-pci,host=0d:00.0,bus=root_port3,addr=01.0,multifunction=on \
to:
-device
vfio-pci,host=0c:00.0,bus=root_port1,addr=00.0,multifunction=on,x-vga=on \
-device vfio-pci,host=0c:00.1,bus=root_port2,addr=00.0,multifunction=on \
-device vfio-pci,host=0d:00.0,bus=root_port3,addr=00.0,multifunction=on \
Apparently, this is a known bug.
All cards must be on the same addr.
I have both gpus and 8gb of vmem instead of just 4gb.
Nice to know you CAN have more than one video card with gpu passthrough.
That's not a bug, that's how PCI function number and PCIe slot numbering
works. You can't have a function number >0 without a function 0 with
multifunction=on in the same slot and you can't have a slot number >0
under a PCIe downstream port.
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