package PVE::QemuServer::PCI;
+use warnings;
+use strict;
+
+use PVE::JSONSchema;
+use PVE::SysFSTools;
+
use base 'Exporter';
our @EXPORT_OK = qw(
print_pci_addr
print_pcie_addr
+print_pcie_root_port
+parse_hostpci
);
-my $devices = {
- piix3 => { bus => 0, addr => 1 },
- ehci => { bus => 0, addr => 1 }, # instead of piix3 on arm
- vga => { bus => 0, addr => 2 },
- balloon0 => { bus => 0, addr => 3 },
- watchdog => { bus => 0, addr => 4 },
- scsihw0 => { bus => 0, addr => 5 },
- 'pci.3' => { bus => 0, addr => 5 }, #can also be used for virtio-scsi-single bridge
- scsihw1 => { bus => 0, addr => 6 },
- ahci0 => { bus => 0, addr => 7 },
- qga0 => { bus => 0, addr => 8 },
- spice => { bus => 0, addr => 9 },
- virtio0 => { bus => 0, addr => 10 },
- virtio1 => { bus => 0, addr => 11 },
- virtio2 => { bus => 0, addr => 12 },
- virtio3 => { bus => 0, addr => 13 },
- virtio4 => { bus => 0, addr => 14 },
- virtio5 => { bus => 0, addr => 15 },
- hostpci0 => { bus => 0, addr => 16 },
- hostpci1 => { bus => 0, addr => 17 },
- net0 => { bus => 0, addr => 18 },
- net1 => { bus => 0, addr => 19 },
- net2 => { bus => 0, addr => 20 },
- net3 => { bus => 0, addr => 21 },
- net4 => { bus => 0, addr => 22 },
- net5 => { bus => 0, addr => 23 },
- vga1 => { bus => 0, addr => 24 },
- vga2 => { bus => 0, addr => 25 },
- vga3 => { bus => 0, addr => 26 },
- hostpci2 => { bus => 0, addr => 27 },
- hostpci3 => { bus => 0, addr => 28 },
- #addr29 : usb-host (pve-usb.cfg)
- 'pci.1' => { bus => 0, addr => 30 },
- 'pci.2' => { bus => 0, addr => 31 },
- 'net6' => { bus => 1, addr => 1 },
- 'net7' => { bus => 1, addr => 2 },
- 'net8' => { bus => 1, addr => 3 },
- 'net9' => { bus => 1, addr => 4 },
- 'net10' => { bus => 1, addr => 5 },
- 'net11' => { bus => 1, addr => 6 },
- 'net12' => { bus => 1, addr => 7 },
- 'net13' => { bus => 1, addr => 8 },
- 'net14' => { bus => 1, addr => 9 },
- 'net15' => { bus => 1, addr => 10 },
- 'net16' => { bus => 1, addr => 11 },
- 'net17' => { bus => 1, addr => 12 },
- 'net18' => { bus => 1, addr => 13 },
- 'net19' => { bus => 1, addr => 14 },
- 'net20' => { bus => 1, addr => 15 },
- 'net21' => { bus => 1, addr => 16 },
- 'net22' => { bus => 1, addr => 17 },
- 'net23' => { bus => 1, addr => 18 },
- 'net24' => { bus => 1, addr => 19 },
- 'net25' => { bus => 1, addr => 20 },
- 'net26' => { bus => 1, addr => 21 },
- 'net27' => { bus => 1, addr => 22 },
- 'net28' => { bus => 1, addr => 23 },
- 'net29' => { bus => 1, addr => 24 },
- 'net30' => { bus => 1, addr => 25 },
- 'net31' => { bus => 1, addr => 26 },
- 'xhci' => { bus => 1, addr => 27 },
- 'virtio6' => { bus => 2, addr => 1 },
- 'virtio7' => { bus => 2, addr => 2 },
- 'virtio8' => { bus => 2, addr => 3 },
- 'virtio9' => { bus => 2, addr => 4 },
- 'virtio10' => { bus => 2, addr => 5 },
- 'virtio11' => { bus => 2, addr => 6 },
- 'virtio12' => { bus => 2, addr => 7 },
- 'virtio13' => { bus => 2, addr => 8 },
- 'virtio14' => { bus => 2, addr => 9 },
- 'virtio15' => { bus => 2, addr => 10 },
- 'virtioscsi0' => { bus => 3, addr => 1 },
- 'virtioscsi1' => { bus => 3, addr => 2 },
- 'virtioscsi2' => { bus => 3, addr => 3 },
- 'virtioscsi3' => { bus => 3, addr => 4 },
- 'virtioscsi4' => { bus => 3, addr => 5 },
- 'virtioscsi5' => { bus => 3, addr => 6 },
- 'virtioscsi6' => { bus => 3, addr => 7 },
- 'virtioscsi7' => { bus => 3, addr => 8 },
- 'virtioscsi8' => { bus => 3, addr => 9 },
- 'virtioscsi9' => { bus => 3, addr => 10 },
- 'virtioscsi10' => { bus => 3, addr => 11 },
- 'virtioscsi11' => { bus => 3, addr => 12 },
- 'virtioscsi12' => { bus => 3, addr => 13 },
- 'virtioscsi13' => { bus => 3, addr => 14 },
- 'virtioscsi14' => { bus => 3, addr => 15 },
- 'virtioscsi15' => { bus => 3, addr => 16 },
- 'virtioscsi16' => { bus => 3, addr => 17 },
- 'virtioscsi17' => { bus => 3, addr => 18 },
- 'virtioscsi18' => { bus => 3, addr => 19 },
- 'virtioscsi19' => { bus => 3, addr => 20 },
- 'virtioscsi20' => { bus => 3, addr => 21 },
- 'virtioscsi21' => { bus => 3, addr => 22 },
- 'virtioscsi22' => { bus => 3, addr => 23 },
- 'virtioscsi23' => { bus => 3, addr => 24 },
- 'virtioscsi24' => { bus => 3, addr => 25 },
- 'virtioscsi25' => { bus => 3, addr => 26 },
- 'virtioscsi26' => { bus => 3, addr => 27 },
- 'virtioscsi27' => { bus => 3, addr => 28 },
- 'virtioscsi28' => { bus => 3, addr => 29 },
- 'virtioscsi29' => { bus => 3, addr => 30 },
- 'virtioscsi30' => { bus => 3, addr => 31 },
+our $MAX_HOSTPCI_DEVICES = 16;
+
+my $PCIRE = qr/([a-f0-9]{4}:)?[a-f0-9]{2}:[a-f0-9]{2}(?:\.[a-f0-9])?/;
+my $hostpci_fmt = {
+ host => {
+ default_key => 1,
+ type => 'string',
+ pattern => qr/$PCIRE(;$PCIRE)*/,
+ format_description => 'HOSTPCIID[;HOSTPCIID2...]',
+ description => <<EODESCR,
+Host PCI device pass through. The PCI ID of a host's PCI device or a list
+of PCI virtual functions of the host. HOSTPCIID syntax is:
+
+'bus:dev.func' (hexadecimal numbers)
+
+You can us the 'lspci' command to list existing PCI devices.
+EODESCR
+ },
+ rombar => {
+ type => 'boolean',
+ description => "Specify whether or not the device's ROM will be visible in the"
+ ." guest's memory map.",
+ optional => 1,
+ default => 1,
+ },
+ romfile => {
+ type => 'string',
+ pattern => '[^,;]+',
+ format_description => 'string',
+ description => "Custom pci device rom filename (must be located in /usr/share/kvm/).",
+ optional => 1,
+ },
+ pcie => {
+ type => 'boolean',
+ description => "Choose the PCI-express bus (needs the 'q35' machine model).",
+ optional => 1,
+ default => 0,
+ },
+ 'x-vga' => {
+ type => 'boolean',
+ description => "Enable vfio-vga device support.",
+ optional => 1,
+ default => 0,
+ },
+ 'legacy-igd' => {
+ type => 'boolean',
+ description => "Pass this device in legacy IGD mode, making it the primary and exclusive"
+ ." graphics device in the VM. Requires 'pc-i440fx' machine type and VGA set to 'none'.",
+ optional => 1,
+ default => 0,
+ },
+ 'mdev' => {
+ type => 'string',
+ format_description => 'string',
+ pattern => '[^/\.:]+',
+ optional => 1,
+ description => <<EODESCR
+The type of mediated device to use.
+An instance of this type will be created on startup of the VM and
+will be cleaned up when the VM stops.
+EODESCR
+ }
+};
+PVE::JSONSchema::register_format('pve-qm-hostpci', $hostpci_fmt);
+
+our $hostpcidesc = {
+ optional => 1,
+ type => 'string', format => 'pve-qm-hostpci',
+ description => "Map host PCI devices into guest.",
+ verbose_description => <<EODESCR,
+Map host PCI devices into guest.
+
+NOTE: This option allows direct access to host hardware. So it is no longer
+possible to migrate such machines - use with special care.
+
+CAUTION: Experimental! User reported problems with this option.
+EODESCR
+};
+PVE::JSONSchema::register_standard_option("pve-qm-hostpci", $hostpcidesc);
+
+my $pci_addr_map;
+sub get_pci_addr_map {
+ $pci_addr_map = {
+ piix3 => { bus => 0, addr => 1, conflict_ok => qw(ehci) },
+ ehci => { bus => 0, addr => 1, conflict_ok => qw(piix3) }, # instead of piix3 on arm
+ vga => { bus => 0, addr => 2, conflict_ok => qw(legacy-igd) },
+ 'legacy-igd' => { bus => 0, addr => 2, conflict_ok => qw(vga) }, # legacy-igd requires vga=none
+ balloon0 => { bus => 0, addr => 3 },
+ watchdog => { bus => 0, addr => 4 },
+ scsihw0 => { bus => 0, addr => 5, conflict_ok => qw(pci.3) },
+ 'pci.3' => { bus => 0, addr => 5, conflict_ok => qw(scsihw0) }, # also used for virtio-scsi-single bridge
+ scsihw1 => { bus => 0, addr => 6 },
+ ahci0 => { bus => 0, addr => 7 },
+ qga0 => { bus => 0, addr => 8 },
+ spice => { bus => 0, addr => 9 },
+ virtio0 => { bus => 0, addr => 10 },
+ virtio1 => { bus => 0, addr => 11 },
+ virtio2 => { bus => 0, addr => 12 },
+ virtio3 => { bus => 0, addr => 13 },
+ virtio4 => { bus => 0, addr => 14 },
+ virtio5 => { bus => 0, addr => 15 },
+ hostpci0 => { bus => 0, addr => 16 },
+ hostpci1 => { bus => 0, addr => 17 },
+ net0 => { bus => 0, addr => 18 },
+ net1 => { bus => 0, addr => 19 },
+ net2 => { bus => 0, addr => 20 },
+ net3 => { bus => 0, addr => 21 },
+ net4 => { bus => 0, addr => 22 },
+ net5 => { bus => 0, addr => 23 },
+ vga1 => { bus => 0, addr => 24 },
+ vga2 => { bus => 0, addr => 25 },
+ vga3 => { bus => 0, addr => 26 },
+ hostpci2 => { bus => 0, addr => 27 },
+ hostpci3 => { bus => 0, addr => 28 },
+ #addr29 : usb-host (pve-usb.cfg)
+ 'pci.1' => { bus => 0, addr => 30 },
+ 'pci.2' => { bus => 0, addr => 31 },
+ 'net6' => { bus => 1, addr => 1 },
+ 'net7' => { bus => 1, addr => 2 },
+ 'net8' => { bus => 1, addr => 3 },
+ 'net9' => { bus => 1, addr => 4 },
+ 'net10' => { bus => 1, addr => 5 },
+ 'net11' => { bus => 1, addr => 6 },
+ 'net12' => { bus => 1, addr => 7 },
+ 'net13' => { bus => 1, addr => 8 },
+ 'net14' => { bus => 1, addr => 9 },
+ 'net15' => { bus => 1, addr => 10 },
+ 'net16' => { bus => 1, addr => 11 },
+ 'net17' => { bus => 1, addr => 12 },
+ 'net18' => { bus => 1, addr => 13 },
+ 'net19' => { bus => 1, addr => 14 },
+ 'net20' => { bus => 1, addr => 15 },
+ 'net21' => { bus => 1, addr => 16 },
+ 'net22' => { bus => 1, addr => 17 },
+ 'net23' => { bus => 1, addr => 18 },
+ 'net24' => { bus => 1, addr => 19 },
+ 'net25' => { bus => 1, addr => 20 },
+ 'net26' => { bus => 1, addr => 21 },
+ 'net27' => { bus => 1, addr => 22 },
+ 'net28' => { bus => 1, addr => 23 },
+ 'net29' => { bus => 1, addr => 24 },
+ 'net30' => { bus => 1, addr => 25 },
+ 'net31' => { bus => 1, addr => 26 },
+ 'xhci' => { bus => 1, addr => 27 },
+ 'pci.4' => { bus => 1, addr => 28 },
+ 'rng0' => { bus => 1, addr => 29 },
+ 'pci.2-igd' => { bus => 1, addr => 30 }, # replaces pci.2 in case a legacy IGD device is passed through
+ 'virtio6' => { bus => 2, addr => 1 },
+ 'virtio7' => { bus => 2, addr => 2 },
+ 'virtio8' => { bus => 2, addr => 3 },
+ 'virtio9' => { bus => 2, addr => 4 },
+ 'virtio10' => { bus => 2, addr => 5 },
+ 'virtio11' => { bus => 2, addr => 6 },
+ 'virtio12' => { bus => 2, addr => 7 },
+ 'virtio13' => { bus => 2, addr => 8 },
+ 'virtio14' => { bus => 2, addr => 9 },
+ 'virtio15' => { bus => 2, addr => 10 },
+ 'ivshmem' => { bus => 2, addr => 11 },
+ 'audio0' => { bus => 2, addr => 12 },
+ hostpci4 => { bus => 2, addr => 13 },
+ hostpci5 => { bus => 2, addr => 14 },
+ hostpci6 => { bus => 2, addr => 15 },
+ hostpci7 => { bus => 2, addr => 16 },
+ hostpci8 => { bus => 2, addr => 17 },
+ hostpci9 => { bus => 2, addr => 18 },
+ hostpci10 => { bus => 2, addr => 19 },
+ hostpci11 => { bus => 2, addr => 20 },
+ hostpci12 => { bus => 2, addr => 21 },
+ hostpci13 => { bus => 2, addr => 22 },
+ hostpci14 => { bus => 2, addr => 23 },
+ hostpci15 => { bus => 2, addr => 24 },
+ 'virtioscsi0' => { bus => 3, addr => 1 },
+ 'virtioscsi1' => { bus => 3, addr => 2 },
+ 'virtioscsi2' => { bus => 3, addr => 3 },
+ 'virtioscsi3' => { bus => 3, addr => 4 },
+ 'virtioscsi4' => { bus => 3, addr => 5 },
+ 'virtioscsi5' => { bus => 3, addr => 6 },
+ 'virtioscsi6' => { bus => 3, addr => 7 },
+ 'virtioscsi7' => { bus => 3, addr => 8 },
+ 'virtioscsi8' => { bus => 3, addr => 9 },
+ 'virtioscsi9' => { bus => 3, addr => 10 },
+ 'virtioscsi10' => { bus => 3, addr => 11 },
+ 'virtioscsi11' => { bus => 3, addr => 12 },
+ 'virtioscsi12' => { bus => 3, addr => 13 },
+ 'virtioscsi13' => { bus => 3, addr => 14 },
+ 'virtioscsi14' => { bus => 3, addr => 15 },
+ 'virtioscsi15' => { bus => 3, addr => 16 },
+ 'virtioscsi16' => { bus => 3, addr => 17 },
+ 'virtioscsi17' => { bus => 3, addr => 18 },
+ 'virtioscsi18' => { bus => 3, addr => 19 },
+ 'virtioscsi19' => { bus => 3, addr => 20 },
+ 'virtioscsi20' => { bus => 3, addr => 21 },
+ 'virtioscsi21' => { bus => 3, addr => 22 },
+ 'virtioscsi22' => { bus => 3, addr => 23 },
+ 'virtioscsi23' => { bus => 3, addr => 24 },
+ 'virtioscsi24' => { bus => 3, addr => 25 },
+ 'virtioscsi25' => { bus => 3, addr => 26 },
+ 'virtioscsi26' => { bus => 3, addr => 27 },
+ 'virtioscsi27' => { bus => 3, addr => 28 },
+ 'virtioscsi28' => { bus => 3, addr => 29 },
+ 'virtioscsi29' => { bus => 3, addr => 30 },
+ 'virtioscsi30' => { bus => 3, addr => 31 },
+ 'scsihw2' => { bus => 4, addr => 1 },
+ 'scsihw3' => { bus => 4, addr => 2 },
+ 'scsihw4' => { bus => 4, addr => 3 },
+ } if !defined($pci_addr_map);
+ return $pci_addr_map;
+}
+
+my $get_addr_mapping_from_id = sub {
+ my ($map, $id) = @_;
+
+ my $d = $map->{$id};
+ return if !defined($d) || !defined($d->{bus}) || !defined($d->{addr});
+
+ return { bus => $d->{bus}, addr => sprintf("0x%x", $d->{addr}) };
};
sub print_pci_addr {
my $res = '';
- # We use the same bus slots on all hardware, so we need to check special
- # cases here:
+ # using same bus slots on all HW, so we need to check special cases here:
my $busname = 'pci';
if ($arch eq 'aarch64' && $machine =~ /^virt/) {
- die "aarch64/virt cannot use IDE devices\n"
- if $id =~ /^ide/;
+ die "aarch64/virt cannot use IDE devices\n" if $id =~ /^ide/;
$busname = 'pcie';
}
- if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
- my $addr = sprintf("0x%x", $devices->{$id}->{addr});
- my $bus = $devices->{$id}->{bus};
- $res = ",bus=$busname.$bus,addr=$addr";
- $bridges->{$bus} = 1 if $bridges;
+ my $map = get_pci_addr_map();
+ if (my $d = $get_addr_mapping_from_id->($map, $id)) {
+ $res = ",bus=$busname.$d->{bus},addr=$d->{addr}";
+ $bridges->{$d->{bus}} = 1 if $bridges;
}
- return $res;
+ return $res;
}
-sub print_pcie_addr {
- my ($id) = @_;
-
- my $res = '';
- my $devices = {
+my $pcie_addr_map;
+sub get_pcie_addr_map {
+ $pcie_addr_map = {
vga => { bus => 'pcie.0', addr => 1 },
hostpci0 => { bus => "ich9-pcie-port-1", addr => 0 },
hostpci1 => { bus => "ich9-pcie-port-2", addr => 0 },
hostpci2 => { bus => "ich9-pcie-port-3", addr => 0 },
hostpci3 => { bus => "ich9-pcie-port-4", addr => 0 },
+ hostpci4 => { bus => "ich9-pcie-port-5", addr => 0 },
+ hostpci5 => { bus => "ich9-pcie-port-6", addr => 0 },
+ hostpci6 => { bus => "ich9-pcie-port-7", addr => 0 },
+ hostpci7 => { bus => "ich9-pcie-port-8", addr => 0 },
+ hostpci8 => { bus => "ich9-pcie-port-9", addr => 0 },
+ hostpci9 => { bus => "ich9-pcie-port-10", addr => 0 },
+ hostpci10 => { bus => "ich9-pcie-port-11", addr => 0 },
+ hostpci11 => { bus => "ich9-pcie-port-12", addr => 0 },
+ hostpci12 => { bus => "ich9-pcie-port-13", addr => 0 },
+ hostpci13 => { bus => "ich9-pcie-port-14", addr => 0 },
+ hostpci14 => { bus => "ich9-pcie-port-15", addr => 0 },
+ hostpci15 => { bus => "ich9-pcie-port-16", addr => 0 },
# win7 is picky about pcie assignments
hostpci0bus0 => { bus => "pcie.0", addr => 16 },
hostpci1bus0 => { bus => "pcie.0", addr => 17 },
hostpci2bus0 => { bus => "pcie.0", addr => 18 },
hostpci3bus0 => { bus => "pcie.0", addr => 19 },
+ ivshmem => { bus => 'pcie.0', addr => 20 },
+ hostpci4bus0 => { bus => "pcie.0", addr => 9 },
+ hostpci5bus0 => { bus => "pcie.0", addr => 10 },
+ hostpci6bus0 => { bus => "pcie.0", addr => 11 },
+ hostpci7bus0 => { bus => "pcie.0", addr => 12 },
+ hostpci8bus0 => { bus => "pcie.0", addr => 13 },
+ hostpci9bus0 => { bus => "pcie.0", addr => 14 },
+ hostpci10bus0 => { bus => "pcie.0", addr => 15 },
+ hostpci11bus0 => { bus => "pcie.0", addr => 21 },
+ hostpci12bus0 => { bus => "pcie.0", addr => 22 },
+ hostpci13bus0 => { bus => "pcie.0", addr => 23 },
+ hostpci14bus0 => { bus => "pcie.0", addr => 24 },
+ hostpci15bus0 => { bus => "pcie.0", addr => 25 },
+ } if !defined($pcie_addr_map);
+
+ return $pcie_addr_map;
+}
+
+sub print_pcie_addr {
+ my ($id) = @_;
+
+ my $res = '';
+
+ my $map = get_pcie_addr_map($id);
+ if (my $d = $get_addr_mapping_from_id->($map, $id)) {
+ $res = ",bus=$d->{bus},addr=$d->{addr}";
+ }
+
+ return $res;
+}
+
+# Generates the device strings for additional pcie root ports. The first 4 pcie
+# root ports are defined in the pve-q35*.cfg files.
+sub print_pcie_root_port {
+ my ($i) = @_;
+ my $res = '';
+
+ my $root_port_addresses = {
+ 4 => "10.0",
+ 5 => "10.1",
+ 6 => "10.2",
+ 7 => "10.3",
+ 8 => "10.4",
+ 9 => "10.5",
+ 10 => "10.6",
+ 11 => "10.7",
+ 12 => "11.0",
+ 13 => "11.1",
+ 14 => "11.2",
+ 15 => "11.3",
};
- if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
- my $addr = sprintf("0x%x", $devices->{$id}->{addr});
- my $bus = $devices->{$id}->{bus};
- $res = ",bus=$bus,addr=$addr";
+ if (defined($root_port_addresses->{$i})) {
+ my $id = $i + 1;
+ $res = "pcie-root-port,id=ich9-pcie-port-${id}";
+ $res .= ",addr=$root_port_addresses->{$i}";
+ $res .= ",x-speed=16,x-width=32,multifunction=on,bus=pcie.0";
+ $res .= ",port=${id},chassis=${id}";
}
+
return $res;
+}
+
+sub parse_hostpci {
+ my ($value) = @_;
+
+ return if !$value;
+
+ my $res = PVE::JSONSchema::parse_property_string($hostpci_fmt, $value);
+
+ my @idlist = split(/;/, $res->{host});
+ delete $res->{host};
+ foreach my $id (@idlist) {
+ my $devs = PVE::SysFSTools::lspci($id);
+ die "no PCI device found for '$id'\n" if !scalar(@$devs);
+ push @{$res->{pciid}}, @$devs;
+ }
+ return $res;
+}
+
+sub print_hostpci_devices {
+ my ($vmid, $conf, $devices, $vga, $winversion, $q35, $bridges, $arch, $machine_type, $bootorder) = @_;
+
+ my $kvm_off = 0;
+ my $gpu_passthrough = 0;
+ my $legacy_igd = 0;
+
+ my $pciaddr;
+ for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++) {
+ my $id = "hostpci$i";
+ my $d = parse_hostpci($conf->{$id});
+ next if !$d;
+
+ if (my $pcie = $d->{pcie}) {
+ die "q35 machine model is not enabled" if !$q35;
+ # win7 wants to have the pcie devices directly on the pcie bus
+ # instead of in the root port
+ if ($winversion == 7) {
+ $pciaddr = print_pcie_addr("${id}bus0");
+ } else {
+ # add more root ports if needed, 4 are present by default
+ # by pve-q35 cfgs, rest added here on demand.
+ if ($i > 3) {
+ push @$devices, '-device', print_pcie_root_port($i);
+ }
+ $pciaddr = print_pcie_addr($id);
+ }
+ } else {
+ my $pci_name = $d->{'legacy-igd'} ? 'legacy-igd' : $id;
+ $pciaddr = print_pci_addr($pci_name, $bridges, $arch, $machine_type);
+ }
+
+ my $pcidevices = $d->{pciid};
+ my $multifunction = @$pcidevices > 1;
+
+ if ($d->{'legacy-igd'}) {
+ die "only one device can be assigned in legacy-igd mode\n"
+ if $legacy_igd;
+ $legacy_igd = 1;
+
+ die "legacy IGD assignment requires VGA mode to be 'none'\n"
+ if !defined($conf->{'vga'}) || $conf->{'vga'} ne 'none';
+ die "legacy IGD assignment requires rombar to be enabled\n"
+ if defined($d->{rombar}) && !$d->{rombar};
+ die "legacy IGD assignment is not compatible with x-vga\n"
+ if $d->{'x-vga'};
+ die "legacy IGD assignment is not compatible with mdev\n"
+ if $d->{mdev};
+ die "legacy IGD assignment is not compatible with q35\n"
+ if $q35;
+ die "legacy IGD assignment is not compatible with multifunction devices\n"
+ if $multifunction;
+ die "legacy IGD assignment only works for devices on host bus 00:02.0\n"
+ if $pcidevices->[0]->{id} !~ m/02\.0$/;
+ }
+
+ my $xvga = '';
+ if ($d->{'x-vga'}) {
+ $xvga = ',x-vga=on' if !($conf->{bios} && $conf->{bios} eq 'ovmf');
+ $kvm_off = 1;
+ $vga->{type} = 'none' if !defined($conf->{vga});
+ $gpu_passthrough = 1;
+ }
+
+ my $sysfspath;
+ if ($d->{mdev} && scalar(@$pcidevices) == 1) {
+ my $pci_id = $pcidevices->[0]->{id};
+ my $uuid = PVE::SysFSTools::generate_mdev_uuid($vmid, $i);
+ $sysfspath = "/sys/bus/pci/devices/$pci_id/$uuid";
+ } elsif ($d->{mdev}) {
+ warn "ignoring mediated device '$id' with multifunction device\n";
+ }
+
+ my $j = 0;
+ foreach my $pcidevice (@$pcidevices) {
+ my $devicestr = "vfio-pci";
+
+ if ($sysfspath) {
+ $devicestr .= ",sysfsdev=$sysfspath";
+ } else {
+ $devicestr .= ",host=$pcidevice->{id}";
+ }
+
+ my $mf_addr = $multifunction ? ".$j" : '';
+ $devicestr .= ",id=${id}${mf_addr}${pciaddr}${mf_addr}";
+
+ if ($j == 0) {
+ $devicestr .= ',rombar=0' if defined($d->{rombar}) && !$d->{rombar};
+ $devicestr .= "$xvga";
+ $devicestr .= ",multifunction=on" if $multifunction;
+ $devicestr .= ",romfile=/usr/share/kvm/$d->{romfile}" if $d->{romfile};
+ $devicestr .= ",bootindex=$bootorder->{$id}" if $bootorder->{$id};
+ }
+
+ push @$devices, '-device', $devicestr;
+ $j++;
+ }
+ }
+ return ($kvm_off, $gpu_passthrough, $legacy_igd);
}
1;
projects / qemu-server.git / blobdiff