mirror of
https://github.com/ergosteur/ergo-proxmox-scripts.git
synced 2026-10-28 13:00:37 -04:00
ergosteur
0d55a6819d
Adding a PCIe card can renumber the buses behind it, so a hostpci entry that names a PCI address can pass through the wrong device. These start the VM only after finding each device by vendor/device/subsystem ID or by its MAC-pinned interface, repoint its resource mapping if it moved, and refuse to start on anything ambiguous. Its dependents then wait for a port on it to answer before starting, so they find their shares up.
33 lines
1.5 KiB
Plaintext
33 lines
1.5 KiB
Plaintext
# VM and devices for start-passthrough-vm.sh.
|
|
#
|
|
# Copy to conf/passthrough-vm.conf next to the scripts:
|
|
# cp conf/passthrough-vm.conf.example conf/passthrough-vm.conf
|
|
#
|
|
# The script looks for it relative to its own location, so this works both in a
|
|
# checkout and deployed at /opt/ergosteur. Override with PASSTHROUGH_VM_CONFIG.
|
|
#
|
|
# Give the VM onboot: 0 so that Proxmox's own autostart leaves it alone, and
|
|
# point its hostpci entries at resource mappings rather than PCI addresses:
|
|
# qm set <vmid> --onboot 0
|
|
# qm set <vmid> --hostpci0 mapping=<mapping-id>,pcie=1
|
|
|
|
VMID=100
|
|
|
|
# One entry per resource mapping the VM uses: "<mapping-id> <lookup> <args>".
|
|
#
|
|
# by-id <vendor:device:subvendor:subdevice>
|
|
# Exactly one device in the host must have these IDs, and it must already
|
|
# be on vfio-pci (or have no driver). Read them from sysfs:
|
|
# cat /sys/bus/pci/devices/<addr>/{vendor,device,subsystem_vendor,subsystem_device}
|
|
#
|
|
# by-netdev <interface> <mac> <vendor:device:subvendor:subdevice>
|
|
# For one port of a multi-port NIC, where every port has the same IDs:
|
|
# the device behind <interface>, which must be pinned to <mac> by a .link
|
|
# file in /etc/systemd/network so that its name survives renumbering. Note
|
|
# that the ports of one card need not share a subsystem ID; read it from
|
|
# the port itself.
|
|
DEVICES=(
|
|
"hba by-id 1000:0097:1000:3090"
|
|
"nic-port by-netdev nic0p1 00:11:22:33:44:55 8086:1572:8086:0000"
|
|
)
|