When memory-backend-xen is used, the label_data pointer can not be got
via memory_region_get_ram_ptr(). We will use other functions to get
label_data once we introduce NVDIMM label support to Xen.
Signed-off-by: Haozhong Zhang <haozhong.zh...@intel.com>
---
Cc: Xiao Guangrong <guangrong.x...@linux.intel.com>
Cc: "Michael S. Tsirkin" <m...@redhat.com>
Cc: Igor Mammedov <imamm...@redhat.com>
---
hw/mem/nvdimm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
index 7895805..d25993b 100644
--- a/hw/mem/nvdimm.c
+++ b/hw/mem/nvdimm.c
@@ -87,7 +87,9 @@ static void nvdimm_realize(PCDIMMDevice *dimm, Error **errp)
align = memory_region_get_alignment(mr);
pmem_size = size - nvdimm->label_size;
- nvdimm->label_data = memory_region_get_ram_ptr(mr) + pmem_size;
+ if (nvdimm->label_size) {
+ nvdimm->label_data = memory_region_get_ram_ptr(mr) + pmem_size;
+ }
pmem_size = QEMU_ALIGN_DOWN(pmem_size, align);
if (size <= nvdimm->label_size || !pmem_size) {
--
2.10.1
