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[Qemu-devel] [PATCH v4 16/24] memory-device: trace when pre_assigning/as
From: |
David Hildenbrand |
Subject: |
[Qemu-devel] [PATCH v4 16/24] memory-device: trace when pre_assigning/assigning/unassigning addresses |
Date: |
Wed, 26 Sep 2018 11:42:11 +0200 |
Let's trace the address when pre_pluggin/plugging/unplugging a memory device.
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 <address@hidden>
Reviewed-by: Igor Mammedov <address@hidden>
Signed-off-by: David Hildenbrand <address@hidden>
---
hw/mem/memory-device.c | 6 ++++++
hw/mem/pc-dimm.c | 8 --------
hw/mem/trace-events | 5 ++++-
3 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c
index e8e282bf5e..cf85199a72 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)
{
@@ -271,6 +272,9 @@ 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_assign_address(addr);
+ }
out:
error_propagate(errp, local_err);
}
@@ -290,6 +294,7 @@ 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_assign_address(addr);
}
void memory_device_unplug(MemoryDeviceState *md, MachineState *ms)
@@ -305,6 +310,7 @@ 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_unassign_address(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 5a9a3d831d..9c0c487cb6 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -34,7 +34,6 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState
*machine,
{
DeviceState *dev = DEVICE(dimm);
Error *local_err = NULL;
- uint64_t addr;
int slot;
slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP,
@@ -49,13 +48,6 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState
*machine,
memory_device_pre_plug(MEMORY_DEVICE(dev), machine, legacy_align,
&local_err);
- if (local_err) {
- goto out;
- }
-
- addr = object_property_get_uint(OBJECT(dev), 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..b40482077e 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_assign_address(uint64_t addr) "0x%"PRIx64
+memory_device_assign_address(uint64_t addr) "0x%"PRIx64
+memory_device_unassign_address(uint64_t addr) "0x%"PRIx64
--
2.17.1
- [Qemu-devel] [PATCH v4 10/24] memory-device: factor out get_memory_region() from pc-dimm, (continued)
- [Qemu-devel] [PATCH v4 10/24] memory-device: factor out get_memory_region() from pc-dimm, David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 11/24] memory-device: drop get_region_size(), David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 12/24] memory-device: add device class function set_addr(), David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 13/24] memory-device: complete factoring out pre_plug handling, David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 14/24] memory-device: complete factoring out plug handling, David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 15/24] memory-device: complete factoring out unplug handling, David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 16/24] memory-device: trace when pre_assigning/assigning/unassigning addresses,
David Hildenbrand <=
- [Qemu-devel] [PATCH v4 17/24] memory-device: add class function get_device_id(), David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 18/24] qdev: hotplug: provide do_unplug handler, David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 19/24] virtio-pmem: prototype, David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 20/24] virtio-pci: proxy for virtio-pmem, David Hildenbrand, 2018/09/26
- [Qemu-devel] [PATCH v4 22/24] numa: handle virtio-pmem in NUMA stats, David Hildenbrand, 2018/09/26