memory-device: trace when pre_plugging/plugging/unplugging
Let's trace the address and the id of a memory device when
pre_plugging/plugging/unplugging succeeded.
Trace it when pre_plugging as well as when plugging, so we really know
when a specific address is actually used.
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181005092024.14344-17-david@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index 30585d6..7de1ccd 100644
--- a/hw/mem/memory-device.c
+++ b/hw/mem/memory-device.c
@@ -17,6 +17,7 @@
#include "qemu/range.h"
#include "hw/virtio/vhost.h"
#include "sysemu/kvm.h"
+#include "trace.h"
static gint memory_device_addr_sort(gconstpointer a, gconstpointer b)
{
@@ -269,6 +270,10 @@
goto out;
}
mdc->set_addr(md, addr, &local_err);
+ if (!local_err) {
+ trace_memory_device_pre_plug(DEVICE(md)->id ? DEVICE(md)->id : "",
+ addr);
+ }
out:
error_propagate(errp, local_err);
}
@@ -288,6 +293,7 @@
memory_region_add_subregion(&ms->device_memory->mr,
addr - ms->device_memory->base, mr);
+ trace_memory_device_plug(DEVICE(md)->id ? DEVICE(md)->id : "", addr);
}
void memory_device_unplug(MemoryDeviceState *md, MachineState *ms)
@@ -303,6 +309,8 @@
g_assert(ms->device_memory);
memory_region_del_subregion(&ms->device_memory->mr, mr);
+ trace_memory_device_unplug(DEVICE(md)->id ? DEVICE(md)->id : "",
+ mdc->get_addr(md));
}
uint64_t memory_device_get_region_size(const MemoryDeviceState *md,
