Notify PIIX4_PM/ICH9LPC device about hotplug event,
so that it would send SCI to guest notifying about
newly added memory.
Signed-off-by: Igor Mammedov <imamm...@redhat.com>
---
hw/i386/pc.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 734c6ee..ee5cf88 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -60,6 +60,8 @@
#include "acpi-build.h"
#include "hw/mem/dimm.h"
#include "trace.h"
+#include "hw/acpi/piix4.h"
+#include "hw/i386/ich9.h"
/* debug PC/ISA interrupts */
//#define DEBUG_IRQ
@@ -1484,6 +1486,8 @@ void qemu_register_pc_machine(QEMUMachine *m)
static void pc_dimm_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
+ Object *acpi_dev;
+ HotplugHandlerClass *hhc;
Error *local_err = NULL;
PCMachineState *pcms = PC_MACHINE(hotplug_dev);
DimmDevice *dimm = DIMM(dev);
@@ -1517,10 +1521,19 @@ static void pc_dimm_plug(HotplugHandler *hotplug_dev,
}
trace_mhp_pc_dimm_assigned_slot(dimm->slot);
+ acpi_dev = (acpi_dev = piix4_pm_find()) ? acpi_dev : ich9_lpc_find();
+ if (!acpi_dev) {
+ error_setg(&local_err,
+ "memory hotplug is not enabled: missing acpi device");
+ return;
+ }
+
+ hhc = HOTPLUG_HANDLER_GET_CLASS(acpi_dev);
memory_region_add_subregion(&pcms->hotplug_memory,
addr - pcms->hotplug_memory_base,
mr);
vmstate_register_ram(mr, dev);
+ hhc->plug(HOTPLUG_HANDLER(acpi_dev), dev, &local_err);
out:
error_propagate(errp, local_err);
--
1.9.0
