qemu-server/test/run_pci_addr_checks.pl
Thomas Lamprecht 30680751dc move qemu-configs to own directory
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2019-09-24 18:59:35 +02:00

143 lines
3.5 KiB
Perl
Executable File

#!/usr/bin/perl
use strict;
use warnings;
use experimental 'smartmatch';
use lib qw(..);
use Test::More;
use PVE::Tools qw(file_get_contents);
use PVE::QemuServer::PCI;
my $qemu_cfg_base_path = "../qemu-configs";
# not our format but that what QEMU gets passed with '-readconfig'
sub slurp_qemu_config {
my ($fn) = @_;
my $raw = file_get_contents($fn);
my $lineno = 0;
my $cfg = {};
my $group;
my $skip_to_next_group;
while ($raw =~ /^\h*(.*?)\h*$/gm) {
my $line = $1;
$lineno++;
next if !$line || $line =~ /^#/;
# tried to follow qemu's qemu_config_parse function
if ($line =~ /\[(\S{1,63}) "([^"\]]{1,63})"\]/) {
$group = $2;
$skip_to_next_group = 0;
if ($1 ne 'device') {
$group = undef;
$skip_to_next_group = 1;
}
} elsif ($line =~ /\[([^\]]{1,63})\]/) {
$group = undef;
$skip_to_next_group = 1;
} elsif ($group) {
if ($line =~ /(\S{1,63}) = "([^\"]{1,1023})"/) {
my ($k, $v) = ($1, $2);
$cfg->{$group}->{$k} = $v;
} else {
print "ignoring $fn:$lineno: $line\n";
}
} else {
warn "ignore $fn:$lineno, currently no group\n" if !$skip_to_next_group;
}
}
return $cfg;
}
sub extract_qemu_config_addrs {
my ($qemu_cfg) = @_;
my $addr_map = {};
for my $k (keys %$qemu_cfg) {
my $v = $qemu_cfg->{$k};
next if !$v || !defined($v->{bus}) || !defined($v->{addr});
my $bus = $v->{bus};
$bus =~ s/pci\.//;
$addr_map->{$k} = { bus => $bus, addr => $v->{addr} };
}
return $addr_map;
}
print "testing PCI(e) address conflicts\n";
# exec tests
#FIXME: make cross PCI <-> PCIe check sense at all??
my $addr_map = {};
my ($fail, $ignored) = (0, 0);
sub check_conflict {
my ($id, $what, $ignore_if_same_key) = @_;
my ($bus, $addr) = $what->@{qw(bus addr)};
my $full_addr = "$bus:$addr";
if (defined(my $conflict = $addr_map->{$full_addr})) {
if (my @ignores = $what->{conflict_ok}) {
if ($conflict ~~ @ignores) {
note("OK: ignore conflict for '$full_addr' between '$id' and '$conflict'");
$ignored++;
return;
}
}
# this allows to read multiple pve-*.cfg qemu configs, and check them
# normally their OK if they conflict is on the same key. Else TODO??
return if $ignore_if_same_key && $id eq $conflict;
note("ERR: conflict for '$full_addr' between '$id' and '$conflict'");
$fail++;
} else {
$addr_map->{$full_addr} = $id;
}
}
my $pci_map = PVE::QemuServer::PCI::get_pci_addr_map();
while (my ($id, $what) = each %$pci_map) {
check_conflict($id, $what);
}
my $pcie_map = PVE::QemuServer::PCI::get_pcie_addr_map();
while (my ($id, $what) = each %$pcie_map) {
check_conflict($id, $what);
}
my $pve_qm_cfg = slurp_qemu_config("$qemu_cfg_base_path/pve-q35.cfg");
my $pve_qm_cfg_map = extract_qemu_config_addrs($pve_qm_cfg);
while (my ($id, $what) = each %$pve_qm_cfg_map) {
check_conflict($id, $what);
}
# FIXME: restart with clean conflict $addr_map with only get_pci*_addr_map ones?
my $pve_qm4_cfg = slurp_qemu_config("$qemu_cfg_base_path/pve-q35-4.0.cfg");
my $pve_qm4_cfg_map = extract_qemu_config_addrs($pve_qm4_cfg);
while (my ($id, $what) = each %$pve_qm4_cfg_map) {
check_conflict($id, $what, 1);
}
my $pve_qm_usb_cfg = slurp_qemu_config("$qemu_cfg_base_path/pve-usb.cfg");
my $pve_qm_usb_cfg_map = extract_qemu_config_addrs($pve_qm_usb_cfg);
while (my ($id, $what) = each %$pve_qm_usb_cfg_map) {
check_conflict($id, $what, 1);
}
if ($fail) {
fail("PCI(e) address conflict check, ignored: $ignored, conflicts: $fail");
} else {
pass("PCI(e) address conflict check, ignored: $ignored");
}
done_testing();