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authorDavid Hildenbrand <david@redhat.com>2018-10-05 11:20:24 +0200
committerEduardo Habkost <ehabkost@redhat.com>2018-10-24 06:44:59 -0300
commit005feccf626ad2078e27d831173c88f29832d99e (patch)
tree34ffb74f71610c7f047bad9c4280eea284c954c1
parent8288590d230c31e891965c30fa579ba3ac0f4c80 (diff)
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>
-rw-r--r--hw/mem/memory-device.c8
-rw-r--r--hw/mem/pc-dimm.c8
-rw-r--r--hw/mem/trace-events5
3 files changed, 12 insertions, 9 deletions
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index 30585d6148..7de1ccd497 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 @@ void memory_device_pre_plug(MemoryDeviceState *md, MachineState *ms,
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 @@ void memory_device_plug(MemoryDeviceState *md, MachineState *ms)
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 @@ void memory_device_unplug(MemoryDeviceState *md, MachineState *ms)
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,
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index 6c854139a7..0c9b9e8292 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -33,7 +33,6 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
const uint64_t *legacy_align, Error **errp)
{
Error *local_err = NULL;
- uint64_t addr;
int slot;
slot = object_property_get_int(OBJECT(dimm), PC_DIMM_SLOT_PROP,
@@ -49,13 +48,6 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
memory_device_pre_plug(MEMORY_DEVICE(dimm), machine, legacy_align,
&local_err);
- if (local_err) {
- goto out;
- }
-
- addr = object_property_get_uint(OBJECT(dimm), PC_DIMM_ADDR_PROP,
- &error_abort);
- trace_mhp_pc_dimm_assigned_address(addr);
out:
error_propagate(errp, local_err);
}
diff --git a/hw/mem/trace-events b/hw/mem/trace-events
index e150dcc497..0f2f278ff2 100644
--- a/hw/mem/trace-events
+++ b/hw/mem/trace-events
@@ -2,4 +2,7 @@
# hw/mem/pc-dimm.c
mhp_pc_dimm_assigned_slot(int slot) "%d"
-mhp_pc_dimm_assigned_address(uint64_t addr) "0x%"PRIx64
+# hw/mem/memory-device.c
+memory_device_pre_plug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64
+memory_device_plug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64
+memory_device_unplug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64