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add win7 pcie quirk

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Win7 is very picky about pcie assignments and fails with
'error 12' the way we add hospci devices.

To combat that, we simply give the hostpci device a normal port
instead.

Start with address 0x10, so that we have space before those devices,
and between them and the ones configured in pve-q35.cfg should we
need it in the future.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Dominik Csapak 2018-12-17 13:57:08 +01:00 committed by Thomas Lamprecht
parent 86c9fafefc
commit 739ba34024
2 changed files with 12 additions and 1 deletions
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8
PVE/QemuServer.pm
View File

@ -3524,7 +3524,13 @@ sub config_to_command {
my $pcie = $d->{pcie};
if($pcie){
die "q35 machine model is not enabled" if !$q35;
$pciaddr = print_pcie_addr("hostpci$i");
# win7 wants to have the pcie devices directly on the pcie bus
# instead of in the root port
if ($winversion == 7) {
$pciaddr = print_pcie_addr("hostpci${i}bus0");
} else {
$pciaddr = print_pcie_addr("hostpci$i");
}
}else{
$pciaddr = print_pci_addr("hostpci$i", $bridges, $arch, $machine_type);
}

5
PVE/QemuServer/PCI.pm
View File

@ -145,6 +145,11 @@ sub print_pcie_addr {
hostpci1 => { bus => "ich9-pcie-port-2", addr => 0 },
hostpci2 => { bus => "ich9-pcie-port-3", addr => 0 },
hostpci3 => { bus => "ich9-pcie-port-4", 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 },
};
if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {