acpi/pcihp: Add a few more trace points related to unplug

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190402161900.7374-4-armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

hw/acpi/pcihp.c

@@ -152,6 +152,8 @@ static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slo
     int slot = ctz32(slots);
     PCIBus *bus = acpi_pcihp_find_hotplug_bus(s, bsel);
 
+    trace_acpi_pci_eject_slot(bsel, slot);
+
     if (!bus) {
         return;
     }
@@ -263,6 +265,8 @@ void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
 void acpi_pcihp_device_unplug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
                                  DeviceState *dev, Error **errp)
 {
+    trace_acpi_pci_unplug(PCI_SLOT(PCI_DEVICE(dev)->devfn),
+                          acpi_pcihp_get_bsel(pci_get_bus(PCI_DEVICE(dev))));
     object_property_set_bool(OBJECT(dev), false, "realized", NULL);
 }
 
@@ -273,6 +277,9 @@ void acpi_pcihp_device_unplug_request_cb(HotplugHandler *hotplug_dev,
     PCIDevice *pdev = PCI_DEVICE(dev);
     int slot = PCI_SLOT(pdev->devfn);
     int bsel = acpi_pcihp_get_bsel(pci_get_bus(pdev));
+
+    trace_acpi_pci_unplug_request(bsel, slot);
+
     if (bsel < 0) {
         error_setg(errp, "Unsupported bus. Bus doesn't have property '"
                    ACPI_PCIHP_PROP_BSEL "' set");

hw/acpi/trace-events

@@ -32,6 +32,9 @@ cpuhp_acpi_write_ost_ev(uint32_t slot, uint32_t ev) "idx[0x%"PRIx32"] OST EVENT:
 cpuhp_acpi_write_ost_status(uint32_t slot, uint32_t st) "idx[0x%"PRIx32"] OST STATUS: 0x%"PRIx32
 
 # pcihp.c
+acpi_pci_eject_slot(unsigned bsel, unsigned slot) "bsel: %u slot: %u"
+acpi_pci_unplug(int bsel, int slot) "bsel: %d slot: %d"
+acpi_pci_unplug_request(int bsel, int slot) "bsel: %d slot: %d"
 acpi_pci_up_read(uint32_t val) "%" PRIu32
 acpi_pci_down_read(uint32_t val) "%" PRIu32
 acpi_pci_features_read(uint32_t val) "%" PRIu32