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-rw-r--r--hw/acpi/pcihp.c15
-rw-r--r--hw/acpi/piix4.c16
2 files changed, 16 insertions, 15 deletions
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 5e7cef1..05e3f8d 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -30,6 +30,7 @@
#include "hw/hw.h"
#include "hw/i386/pc.h"
#include "hw/pci/pci.h"
+#include "hw/pci/pci_bridge.h"
#include "hw/acpi/acpi.h"
#include "sysemu/sysemu.h"
#include "exec/address-spaces.h"
@@ -240,6 +241,20 @@ void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s,
* it is present on boot, no hotplug event is necessary. We do send an
* event when the device is disabled later. */
if (!dev->hotplugged) {
+ /*
+ * Overwrite the default hotplug handler with the ACPI PCI one
+ * for cold plugged bridges only.
+ */
+ if (!s->legacy_piix &&
+ object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)) {
+ PCIBus *sec = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev));
+
+ qbus_set_hotplug_handler(BUS(sec), DEVICE(hotplug_dev),
+ &error_abort);
+ /* We don't have to overwrite any other hotplug handler yet */
+ assert(QLIST_EMPTY(&sec->child));
+ }
+
return;
}
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index f68e62d..07dfeb0 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -447,15 +447,6 @@ static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
}
}
-static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque)
-{
- PIIX4PMState *s = opaque;
-
- /* pci_bus cannot outlive PIIX4PMState, because /machine keeps it alive
- * and it's not hot-unpluggable */
- qbus_set_hotplug_handler(BUS(pci_bus), DEVICE(s), &error_abort);
-}
-
static void piix4_pm_machine_ready(Notifier *n, void *opaque)
{
PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready);
@@ -469,12 +460,6 @@ static void piix4_pm_machine_ready(Notifier *n, void *opaque)
pci_conf[0x63] = 0x60;
pci_conf[0x67] = (memory_region_present(io_as, 0x3f8) ? 0x08 : 0) |
(memory_region_present(io_as, 0x2f8) ? 0x90 : 0);
-
- if (s->use_acpi_pci_hotplug) {
- pci_for_each_bus(pci_get_bus(d), piix4_update_bus_hotplug, s);
- } else {
- piix4_update_bus_hotplug(pci_get_bus(d), s);
- }
}
static void piix4_pm_add_propeties(PIIX4PMState *s)
@@ -548,6 +533,7 @@ static void piix4_pm_realize(PCIDevice *dev, Error **errp)
piix4_acpi_system_hot_add_init(pci_address_space_io(dev),
pci_get_bus(dev), s);
+ qbus_set_hotplug_handler(BUS(pci_get_bus(dev)), DEVICE(s), &error_abort);
piix4_pm_add_propeties(s);
}