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authorHaozhong Zhang <haozhong.zhang@intel.com>2018-03-11 11:02:12 +0800
committerMichael S. Tsirkin <mst@redhat.com>2018-03-20 03:34:52 +0200
commit6388e18de9c6842de9a1307b61d42c8e4549009c (patch)
treebe1792214afae93fe5d31671afdf0d6898cbc4d6 /hw/mem
parent52c95cae4e1299e0a2a9709093581a3a96473aa5 (diff)
qmp: distinguish PC-DIMM and NVDIMM in MemoryDeviceInfoList
It may need to treat PC-DIMM and NVDIMM differently, e.g., when deciding the necessity of non-volatile flag bit in SRAT memory affinity structures. A new field 'nvdimm' is added to the union type MemoryDeviceInfo for such purpose. Its type is currently PCDIMMDeviceInfo and will be updated when necessary in the future. It also fixes "info memory-devices"/query-memory-devices which currently show nvdimm devices as dimm devices since object_dynamic_cast(obj, TYPE_PC_DIMM) happily cast nvdimm to TYPE_PC_DIMM which it's been inherited from. Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/mem')
-rw-r--r--hw/mem/pc-dimm.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index 4d050fe2cd..51350d9c2d 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "hw/mem/pc-dimm.h"
+#include "hw/mem/nvdimm.h"
#include "qapi/error.h"
#include "qemu/config-file.h"
#include "qapi/visitor.h"
@@ -250,6 +251,7 @@ MemoryDeviceInfoList *qmp_pc_dimm_device_list(void)
MemoryDeviceInfoList *elem = g_new0(MemoryDeviceInfoList, 1);
MemoryDeviceInfo *info = g_new0(MemoryDeviceInfo, 1);
PCDIMMDeviceInfo *di = g_new0(PCDIMMDeviceInfo, 1);
+ bool is_nvdimm = object_dynamic_cast(obj, TYPE_NVDIMM);
DeviceClass *dc = DEVICE_GET_CLASS(obj);
DeviceState *dev = DEVICE(obj);
@@ -265,7 +267,13 @@ MemoryDeviceInfoList *qmp_pc_dimm_device_list(void)
di->size = object_property_get_uint(obj, PC_DIMM_SIZE_PROP, NULL);
di->memdev = object_get_canonical_path(OBJECT(dimm->hostmem));
- info->u.dimm.data = di;
+ if (!is_nvdimm) {
+ info->u.dimm.data = di;
+ info->type = MEMORY_DEVICE_INFO_KIND_DIMM;
+ } else {
+ info->u.nvdimm.data = di;
+ info->type = MEMORY_DEVICE_INFO_KIND_NVDIMM;
+ }
elem->value = info;
elem->next = NULL;
if (prev) {