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ovmf cmd assembly: rework now that it's in a separate method

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We can now do a few things that would be not really possible, or at
least mess with readability when this was still mostly inline
config2command, shaves of quite a few lines of code.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2022-12-12 11:35:19 +01:00
parent 2ceb59d4b1
commit 3d07669cf1
1 changed files with 17 additions and 38 deletions
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55
PVE/QemuServer.pm
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@ -3517,63 +3517,42 @@ my sub should_disable_smm {
my sub print_ovmf_drive_commandlines {
my ($conf, $storecfg, $vmid, $arch, $q35, $version_guard) = @_;
my $d;
if (my $efidisk = $conf->{efidisk0}) {
$d = parse_drive('efidisk0', $efidisk);
}
my $d = $conf->{efidisk0} ? parse_drive('efidisk0', $conf->{efidisk0}) : undef;
my ($ovmf_code, $ovmf_vars) = get_ovmf_files($arch, $d, $q35);
die "uefi base image '$ovmf_code' not found\n" if ! -f $ovmf_code;
my ($path, $format);
my $read_only_str = '';
my $var_drive_str = "if=pflash,unit=1,id=drive-efidisk0";
if ($d) {
my ($storeid, $volname) = PVE::Storage::parse_volume_id($d->{file}, 1);
$format = $d->{format};
my ($path, $format) = $d->@{'file', 'format'};
if ($storeid) {
$path = PVE::Storage::path($storecfg, $d->{file});
if (!defined($format)) {
my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
$format = qemu_img_format($scfg, $volname);
}
} else {
$path = $d->{file};
die "efidisk format must be specified\n"
if !defined($format);
} elsif (!defined($format)) {
die "efidisk format must be specified\n";
}
# SPI flash does lots of read-modify-write OPs, without writeback this gets really slow #3329
if ($path =~ m/^rbd:/) {
$var_drive_str .= ',cache=writeback';
$path .= ':rbd_cache_policy=writeback'; # avoid write-around, we *need* to cache writes too
}
$var_drive_str .= ",format=$format,file=$path";
$read_only_str = ',readonly=on' if drive_is_read_only($conf, $d);
$var_drive_str .= ",size=" . (-s $ovmf_vars) if $format eq 'raw' && $version_guard->(4, 1, 2);
$var_drive_str .= ',readonly=on' if drive_is_read_only($conf, $d);
} else {
log_warn("no efidisk configured! Using temporary efivars disk.");
$path = "/tmp/$vmid-ovmf.fd";
my $path = "/tmp/$vmid-ovmf.fd";
PVE::Tools::file_copy($ovmf_vars, $path, -s $ovmf_vars);
$format = 'raw';
$var_drive_str .= ",format=raw,file=$path";
$var_drive_str .= ",size=" . (-s $ovmf_vars) if $version_guard->(4, 1, 2);
}
my $size_str = "";
if ($format eq 'raw' && $version_guard->(4, 1, 2)) {
$size_str = ",size=" . (-s $ovmf_vars);
}
# SPI flash does lots of read-modify-write OPs, without writeback this gets really slow #3329
my $cache = "";
if ($path =~ m/^rbd:/) {
$cache = ',cache=writeback';
$path .= ':rbd_cache_policy=writeback'; # avoid write-around, we *need* to cache writes too
}
my $code_drive_str = "if=pflash,unit=0,format=raw,readonly=on,file=$ovmf_code";
my $var_drive_str = "if=pflash"
. ",unit=1"
. ",id=drive-efidisk0"
. "$cache"
. ",format=$format"
. ",file=$path"
. "$size_str"
. "$read_only_str";
return ($code_drive_str, $var_drive_str);
return ("if=pflash,unit=0,format=raw,readonly=on,file=$ovmf_code", $var_drive_str);
}
sub config_to_command {