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>
---
v2:
* fix memory leak, reported by pbonzini
* use link to ACPI device instead of looking it up in QOM tree
---
hw/i386/pc.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 40d0c78..8c80084 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1553,6 +1553,7 @@ static void pc_dimm_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
int slot;
+ HotplugHandlerClass *hhc;
Error *local_err = NULL;
PCMachineState *pcms = PC_MACHINE(hotplug_dev);
MachineState *machine = MACHINE(hotplug_dev);
@@ -1595,9 +1596,18 @@ static void pc_dimm_plug(HotplugHandler *hotplug_dev,
}
trace_mhp_pc_dimm_assigned_slot(slot);
+ if (!pcms->acpi_dev) {
+ error_setg(&local_err,
+ "memory hotplug is not enabled: missing acpi device");
+ goto out;
+ }
+
memory_region_add_subregion(&pcms->hotplug_memory,
addr - pcms->hotplug_memory_base, mr);
vmstate_register_ram(mr, dev);
+
+ hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
+ hhc->plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
out:
error_propagate(errp, local_err);
}
--
1.7.1
