diff --git a/tests/libqos/pci-pc.c b/tests/libqos/pci-pc.c
index 0609294af0b1223c291e97d6033617a65563f2e1..6dba0db00ae3de26428a3ff741a3ca131edbc97e 100644
--- a/tests/libqos/pci-pc.c
+++ b/tests/libqos/pci-pc.c
@@ -20,6 +20,9 @@
 
 #include <glib.h>
 
+#define ACPI_PCIHP_ADDR         0xae00
+#define PCI_EJ_BASE             0x0008
+
 typedef struct QPCIBusPC
 {
     QPCIBus bus;
@@ -247,3 +250,49 @@ void qpci_free_pc(QPCIBus *bus)
 
     g_free(s);
 }
+
+void qpci_plug_device_test(const char *driver, const char *id,
+                           uint8_t slot, const char *opts)
+{
+    QDict *response;
+    char *cmd;
+
+    cmd = g_strdup_printf("{'execute': 'device_add',"
+                          " 'arguments': {"
+                          "   'driver': '%s',"
+                          "   'addr': '%d',"
+                          "   %s%s"
+                          "   'id': '%s'"
+                          "}}", driver, slot,
+                          opts ? opts : "", opts ? "," : "",
+                          id);
+    response = qmp(cmd);
+    g_free(cmd);
+    g_assert(response);
+    g_assert(!qdict_haskey(response, "error"));
+    QDECREF(response);
+}
+
+void qpci_unplug_acpi_device_test(const char *id, uint8_t slot)
+{
+    QDict *response;
+    char *cmd;
+
+    cmd = g_strdup_printf("{'execute': 'device_del',"
+                          " 'arguments': {"
+                          "   'id': '%s'"
+                          "}}", id);
+    response = qmp(cmd);
+    g_free(cmd);
+    g_assert(response);
+    g_assert(!qdict_haskey(response, "error"));
+    QDECREF(response);
+
+    outb(ACPI_PCIHP_ADDR + PCI_EJ_BASE, 1 << slot);
+
+    response = qmp("");
+    g_assert(response);
+    g_assert(qdict_haskey(response, "event"));
+    g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
+    QDECREF(response);
+}
diff --git a/tests/libqos/pci.h b/tests/libqos/pci.h
index d51eb9e2192796f5d262491080d6dd6490ce9d73..dfaee9ec37c2502df232d24a2f6b34be25182c9c 100644
--- a/tests/libqos/pci.h
+++ b/tests/libqos/pci.h
@@ -87,4 +87,7 @@ void qpci_io_writel(QPCIDevice *dev, void *data, uint32_t value);
 void *qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr);
 void qpci_iounmap(QPCIDevice *dev, void *data);
 
+void qpci_plug_device_test(const char *driver, const char *id,
+                           uint8_t slot, const char *opts);
+void qpci_unplug_acpi_device_test(const char *id, uint8_t slot);
 #endif