From b8acc0286be070f84aa5a9c0e19d711e323d8fc0 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Wed, 2 Jul 2025 18:27:41 +0200
Subject: [PATCH] zfs pool plugin: implement method to get qemu blockdevice
 options

ZFS does not have a filesystem_path() method, so the default
implementation for qemu_blockdev_options() cannot be re-used. This is
most likely, because snapshots are currently not directly accessible
via a filesystem path in the Proxmox VE storage layer.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
 src/PVE/Storage/ZFSPoolPlugin.pm | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/PVE/Storage/ZFSPoolPlugin.pm b/src/PVE/Storage/ZFSPoolPlugin.pm
index 713d26f..86c52ea 100644
--- a/src/PVE/Storage/ZFSPoolPlugin.pm
+++ b/src/PVE/Storage/ZFSPoolPlugin.pm
@@ -162,6 +162,20 @@ sub path {
     return ($path, $vmid, $vtype);
 }
 
+sub qemu_blockdev_options {
+    my ($class, $scfg, $storeid, $volname) = @_;
+
+    my $format = ($class->parse_volname($volname))[6];
+
+    die "volume '$volname' not usable as VM image\n" if $format ne 'raw';
+
+    my ($path) = $class->path($scfg, $volname, $storeid);
+
+    my $blockdev = { driver => 'host_device', filename => $path };
+
+    return $blockdev;
+}
+
 sub zfs_request {
     my ($class, $scfg, $timeout, $method, @params) = @_;