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backup: allow adding fleecing images also for EFI and TPM

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For the external backup API, it will be necessary to add a fleecing
image even for small disks like EFI and TPM, because there is no other
place the old data could be copied to when a new guest write comes in.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Reviewed-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Link: https://lore.proxmox.com/20250404133204.239783-13-f.ebner@proxmox.com
This commit is contained in:
Fiona Ebner 2025-04-04 15:31:47 +02:00 committed by Thomas Lamprecht
parent 6c7e74c9d0
commit 2ba39f3251
1 changed files with 8 additions and 6 deletions
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14
PVE/VZDump/QemuServer.pm
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@ -541,7 +541,7 @@ my sub cleanup_fleecing_images {
}
my sub allocate_fleecing_images {
my ($self, $disks, $vmid, $fleecing_storeid, $format) = @_;
my ($self, $disks, $vmid, $fleecing_storeid, $format, $all_images) = @_;
die "internal error - no fleecing storage specified\n" if !$fleecing_storeid;
@ -552,7 +552,8 @@ my sub allocate_fleecing_images {
my $n = 0; # counter for fleecing image names
for my $di ($disks->@*) {
next if $di->{virtdev} =~ m/^(?:tpmstate|efidisk)\d$/; # too small to be worth it
# EFI/TPM are usually too small to be worth it, but it's required for external providers
next if !$all_images && $di->{virtdev} =~ m/^(?:tpmstate|efidisk)\d$/;
if ($di->{type} eq 'block' || $di->{type} eq 'file') {
my $scfg = PVE::Storage::storage_config($self->{storecfg}, $fleecing_storeid);
my $name = "vm-$vmid-fleece-$n";
@ -624,7 +625,7 @@ my sub attach_fleecing_images {
}
my sub check_and_prepare_fleecing {
my ($self, $vmid, $fleecing_opts, $disks, $is_template, $qemu_support) = @_;
my ($self, $vmid, $fleecing_opts, $disks, $is_template, $qemu_support, $all_images) = @_;
# Even if the VM was started specifically for fleecing, it's possible that the VM is resumed and
# then starts doing IO. For VMs that are not resumed the fleecing images will just stay empty,
@ -647,7 +648,8 @@ my sub check_and_prepare_fleecing {
$self->{storecfg}, $fleecing_opts->{storage});
my $format = scalar(grep { $_ eq 'qcow2' } $valid_formats->@*) ? 'qcow2' : 'raw';
allocate_fleecing_images($self, $disks, $vmid, $fleecing_opts->{storage}, $format);
allocate_fleecing_images(
$self, $disks, $vmid, $fleecing_opts->{storage}, $format, $all_images);
attach_fleecing_images($self, $disks, $vmid, $format);
}
@ -738,7 +740,7 @@ sub archive_pbs {
my $is_template = PVE::QemuConfig->is_template($self->{vmlist}->{$vmid});
$task->{'use-fleecing'} = check_and_prepare_fleecing(
$self, $vmid, $opts->{fleecing}, $task->{disks}, $is_template, $qemu_support);
$self, $vmid, $opts->{fleecing}, $task->{disks}, $is_template, $qemu_support, 0);
my $fs_frozen = $self->qga_fs_freeze($task, $vmid);
@ -911,7 +913,7 @@ sub archive_vma {
$attach_tpmstate_drive->($self, $task, $vmid);
$task->{'use-fleecing'} = check_and_prepare_fleecing(
$self, $vmid, $opts->{fleecing}, $task->{disks}, $is_template, $qemu_support);
$self, $vmid, $opts->{fleecing}, $task->{disks}, $is_template, $qemu_support, 0);
my $outfh;
if ($opts->{stdout}) {