From 6aada70c4af26716fe6e8287046c44eb82674666 Mon Sep 17 00:00:00 2001
From: Daan Hoogland <dahn@apache.org>
Date: Fri, 12 Dec 2025 08:40:58 +0100
Subject: [PATCH] do not add disk cache mode from an empty string

---
 .../cloud/hypervisor/kvm/resource/LibvirtDomainXMLParser.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/LibvirtDomainXMLParser.java b/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/LibvirtDomainXMLParser.java
index 8b26bc94e218..4d823783a99a 100644
--- a/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/LibvirtDomainXMLParser.java
+++ b/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/LibvirtDomainXMLParser.java
@@ -111,7 +111,9 @@ public boolean parseDomainXML(String domXML) {
                     def.defNetworkBasedDisk(diskPath, host, port, authUserName, poolUuid, diskLabel,
                         DiskDef.DiskBus.valueOf(bus.toUpperCase()),
                         DiskDef.DiskProtocol.valueOf(protocol.toUpperCase()), fmt);
-                    def.setCacheMode(DiskDef.DiskCacheMode.valueOf(diskCacheMode.toUpperCase()));
+                    if (StringUtils.isNotBlank(diskCacheMode)) {
+                        def.setCacheMode(DiskDef.DiskCacheMode.valueOf(diskCacheMode.toUpperCase()));
+                    }
                 } else {
                     String diskFmtType = getAttrValue("driver", "type", disk);
                     String diskCacheMode = getAttrValue("driver", "cache", disk);