diff --git a/emhttp/plugins/dynamix/SysDevs.page b/emhttp/plugins/dynamix/SysDevs.page
index 675c0d07d..08b4944ce 100644
--- a/emhttp/plugins/dynamix/SysDevs.page
+++ b/emhttp/plugins/dynamix/SysDevs.page
@@ -57,30 +57,45 @@ function formatFullInput(input) {
         })
         .join('<br>');
 }
-function ackPCI(pcidevice,action) {
-  switch(action) {
-    case 'removed':
-      // Remove entry from saved.
-      swaltext = "_(Acknowledge removal of PCI Address)_: "+pcidevice;
-      break;
-    case 'changed':
-      // Update saved with current
-      swaltext = "_(Acknowledge update of PCI Address)_: "+pcidevice;
-      break;
-    case 'added': 
-      // Add to saved.
-      swaltext = "_(Acknowledge addition of PCI Address)_: "+pcidevice;
-      break;
-    case 'all': 
-      // Add to saved.
-      swaltext = "_(Acknowledge all PCI Address modifications)_: <br>"+formatFullInput(pcidevice);
-      break;
-  }
-  swal({title:"Are you sure?",text:swaltext,type:"warning",html:true,showCancelButton:true},function(){
-        $.post('/webGui/include/PCIUpdate.php',{action:action,pciid:pcidevice}).done(function(d) {
-          if (d == "OK") $('#t1').load('/webGui/include/SysDevs.php',{table:'t1'});
-        });
+function formatVMS(input) {
+    return input
+        .split(';')
+        .filter(Boolean) // remove empty trailing entry
+        .join('<br>');
+}
+function ackPCI(pcidevice, action) {
+  $.post('/webGui/include/PCIUpdate.php', { action: "getvm", pciid: pcidevice }).done(function(vms) {
+    let swaltext = "";
+
+    switch(action) {
+      case 'removed':
+        swaltext = "_(Acknowledge removal of PCI Address)_: " + pcidevice + "<br>_(VMs where PCI device used)_<br>" + formatVMS(vms);
+        break;
+      case 'changed':
+        swaltext = "_(Acknowledge update of PCI Address)_: " + pcidevice + "<br>_(VMs where PCI device used)_<br>"+ formatVMS(vms);
+        break;
+      case 'added':
+        swaltext = "_(Acknowledge addition of PCI Address)_: " + pcidevice + "<br>_(VMs where PCI device used)_<br>" + formatVMS(vms);
+        break;
+      case 'all':
+        swaltext = "_(Acknowledge all PCI Address modifications)_: <br>" + formatFullInput(pcidevice) + "<br>_(VMs where PCI device used)_<br>" + formatVMS(vms);
+        break;
+    }
+
+    swal({
+      title: "Are you sure?",
+      text: swaltext,
+      type: "warning",
+      html: true,
+      showCancelButton: true
+    }, function() {
+      $.post('/webGui/include/PCIUpdate.php', { action: action, pciid: pcidevice }).done(function(d) {
+        if (d === "OK") {
+          $('#t1').load('/webGui/include/SysDevs.php', { table: 't1' });
+        }
+      });
     });
+  });
 }
 
 </script>
diff --git a/emhttp/plugins/dynamix/include/PCIUpdate.php b/emhttp/plugins/dynamix/include/PCIUpdate.php
index ae19c8fab..8acff1ba1 100644
--- a/emhttp/plugins/dynamix/include/PCIUpdate.php
+++ b/emhttp/plugins/dynamix/include/PCIUpdate.php
@@ -14,6 +14,7 @@
 <?
 $docroot ??= ($_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp');
 require_once "$docroot/webGui/include/Helpers.php";
+require_once "$docroot/plugins/dynamix.vm.manager/include/libvirt_helpers.php";
 
 
 function process_action($pciaddr,$action)
@@ -30,6 +31,20 @@ function process_action($pciaddr,$action)
     }
 }
 
+function build_pci_vm_map() {
+  global $lv;
+  $pci_device_changes = comparePCIData();
+  $vms = $lv->get_domains();
+  foreach ($vms as $vm) {
+    $vmpciids = $lv->domain_get_vm_pciids($vm);
+    foreach($vmpciids as $pciid => $pcidetail) {
+      if (isset($pci_device_changes["0000:".$pciid])) {
+        $pcitovm["0000:".$pciid][$vm] = $vm;
+      }
+    }
+  }
+  return $pcitovm;
+}
 
 $savedfile = "/boot/config/savedpcidata.json";
 $saved = loadSavedData($savedfile);
@@ -38,15 +53,43 @@ $current = loadCurrentPCIData();
 $pciaddr = $_POST['pciid'];
 $action = $_POST['action']??'';
 
-if ($action == 'all') {
+switch($action) {
+case "all":
   $pciaddrs = explode(";", $pciaddr);
   foreach ($pciaddrs as $pciaddraction){
     $values = explode(',',$pciaddraction);
     process_action($values[0],$values[1]);
   }
-} else {
-  process_action($pciaddr,$action);
+  file_put_contents($savedfile,json_encode($saved,JSON_PRETTY_PRINT));
+  break;
+case "removed":
+case "added":
+case "changed":
+    process_action($pciaddr,$action);
+    file_put_contents($savedfile,json_encode($saved,JSON_PRETTY_PRINT));
+    break;
+case "getvm":
+    $pcimap = build_pci_vm_map();
+    $pciaddrs = explode(";", $pciaddr);
+    $vmact =[];
+
+    foreach ($pciaddrs as $pcidev) {
+      if ($pcidev == "") continue;
+      if (strpos($pcidev,",")) {
+        $values = explode(',',$pcidev);
+        $pcidev = $values[0];
+      }    
+      foreach ($pcimap[$pcidev] as $key => $vmname) {
+        $vmact[$vmname]= $vmname; 
+      }
+    }
+    $ret = implode(";",$vmact);
+
+    echo $ret;
+    exit;
+
 }
+
 file_put_contents($savedfile,json_encode($saved,JSON_PRETTY_PRINT));
 echo "OK";
 ?>