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pci: allow override of PCI vendor/device ids
This allows mobile- and vGPUs to be presented to the guest as if they were the original desktop variants of the card. It also allows device-ID variants that guests don't know about to be renamed to match compatible sibling devices the guest does have drivers for (e.g. to remove manufacturer-specific vendor ID variants that prevent the use of a device which would otherwise have a supported chipset) e.g. hostpci0: 03:00,vendor-id=0x8086,device-id=0x10f6 Signed-off-by: Nicholas Sherlock <n.sherlock@gmail.com> Reviewed-by: Dominik Csapak <d.csapak@proxmox.com> Tested-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Nicholas Sherlock
Thomas Lamprecht
parent
ea18b60455
commit
d806b017ac
@ -77,6 +77,34 @@ The type of mediated device to use.
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An instance of this type will be created on startup of the VM and
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will be cleaned up when the VM stops.
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EODESCR
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},
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'vendor-id' => {
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type => 'string',
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pattern => qr/^0x[0-9a-fA-F]{4}$/,
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format_description => 'hex id',
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optional => 1,
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description => "Override PCI vendor ID visible to guest"
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},
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'device-id' => {
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type => 'string',
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pattern => qr/^0x[0-9a-fA-F]{4}$/,
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format_description => 'hex id',
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optional => 1,
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description => "Override PCI device ID visible to guest"
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},
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'sub-vendor-id' => {
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type => 'string',
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pattern => qr/^0x[0-9a-fA-F]{4}$/,
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format_description => 'hex id',
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optional => 1,
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description => "Override PCI subsystem vendor ID visible to guest"
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},
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'sub-device-id' => {
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type => 'string',
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pattern => qr/^0x[0-9a-fA-F]{4}$/,
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format_description => 'hex id',
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optional => 1,
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description => "Override PCI subsystem device ID visible to guest"
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}
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};
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PVE::JSONSchema::register_format('pve-qm-hostpci', $hostpci_fmt);
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@ -457,6 +485,9 @@ sub print_hostpci_devices {
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$devicestr .= ",multifunction=on" if $multifunction;
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$devicestr .= ",romfile=/usr/share/kvm/$d->{romfile}" if $d->{romfile};
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$devicestr .= ",bootindex=$bootorder->{$id}" if $bootorder->{$id};
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for my $option (qw(vendor-id device-id sub-vendor-id sub-device-id)) {
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$devicestr .= ",x-pci-$option=$d->{$option}" if $d->{$option};
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}
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}
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push @$devices, '-device', $devicestr;
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16
test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf
Normal file
16
test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf
Normal file
@ -0,0 +1,16 @@
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# TEST: Overriding PCI vendor/device IDs reported to guest
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bios: ovmf
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bootdisk: scsi0
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cores: 1
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efidisk0: local:100/vm-100-disk-1.qcow2,size=128K
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hostpci0: 00:ff.1,vendor-id=0x1234,device-id=0x5678,sub-vendor-id=0x2233,sub-device-id=0x0000
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hostpci1: d0:13.0,pcie=1,vendor-id=0x1234,device-id=0x5678
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machine: q35
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memory: 512
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net0: virtio=2E:01:68:F9:9C:87,bridge=vmbr0
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numa: 1
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ostype: l26
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scsihw: virtio-scsi-pci
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smbios1: uuid=3dd750ce-d910-44d0-9493-525c0be4e687
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sockets: 2
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vmgenid: 54d1c06c-8f5b-440f-b5b2-6eab1380e13d
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35
test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf.cmd
Normal file
35
test/cfg2cmd/q35-linux-hostpci-x-pci-overrides.conf.cmd
Normal file
@ -0,0 +1,35 @@
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/usr/bin/kvm \
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-id 8006 \
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-name vm8006 \
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-no-shutdown \
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-chardev 'socket,id=qmp,path=/var/run/qemu-server/8006.qmp,server=on,wait=off' \
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-mon 'chardev=qmp,mode=control' \
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-chardev 'socket,id=qmp-event,path=/var/run/qmeventd.sock,reconnect=5' \
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-mon 'chardev=qmp-event,mode=control' \
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-pidfile /var/run/qemu-server/8006.pid \
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-daemonize \
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-smbios 'type=1,uuid=3dd750ce-d910-44d0-9493-525c0be4e687' \
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-drive 'if=pflash,unit=0,format=raw,readonly=on,file=/usr/share/pve-edk2-firmware//OVMF_CODE.fd' \
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-drive 'if=pflash,unit=1,format=qcow2,id=drive-efidisk0,file=/var/lib/vz/images/100/vm-100-disk-1.qcow2' \
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-global 'ICH9-LPC.acpi-pci-hotplug-with-bridge-support=off' \
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-smp '2,sockets=2,cores=1,maxcpus=2' \
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-nodefaults \
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-boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' \
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-vnc 'unix:/var/run/qemu-server/8006.vnc,password=on' \
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-cpu kvm64,enforce,+kvm_pv_eoi,+kvm_pv_unhalt,+lahf_lm,+sep \
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-m 512 \
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-object 'memory-backend-ram,id=ram-node0,size=256M' \
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-numa 'node,nodeid=0,cpus=0,memdev=ram-node0' \
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-object 'memory-backend-ram,id=ram-node1,size=256M' \
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-numa 'node,nodeid=1,cpus=1,memdev=ram-node1' \
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-readconfig /usr/share/qemu-server/pve-q35-4.0.cfg \
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-device 'vmgenid,guid=54d1c06c-8f5b-440f-b5b2-6eab1380e13d' \
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-device 'usb-tablet,id=tablet,bus=ehci.0,port=1' \
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-device 'vfio-pci,host=0000:00:ff.1,id=hostpci0,bus=pci.0,addr=0x10,x-pci-vendor-id=0x1234,x-pci-device-id=0x5678,x-pci-sub-vendor-id=0x2233,x-pci-sub-device-id=0x0000' \
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-device 'vfio-pci,host=0000:d0:13.0,id=hostpci1,bus=ich9-pcie-port-2,addr=0x0,x-pci-vendor-id=0x1234,x-pci-device-id=0x5678' \
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-device 'VGA,id=vga,bus=pcie.0,addr=0x1' \
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-device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' \
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-iscsi 'initiator-name=iqn.1993-08.org.debian:01:aabbccddeeff' \
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-netdev 'type=tap,id=net0,ifname=tap8006i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
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-device 'virtio-net-pci,mac=2E:01:68:F9:9C:87,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300' \
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-machine 'type=q35+pve0'
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