diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig
index 9d3dd3d0aec007766bfff0383f30afe1569df517..c898da48a8df4027e92cb06beb0331ea433a5b0d 100644
--- a/arch/arm64/configs/openeuler_defconfig
+++ b/arch/arm64/configs/openeuler_defconfig
@@ -275,6 +275,8 @@ CONFIG_PGTABLE_LEVELS=3
 CONFIG_ARCH_SUPPORTS_UPROBES=y
 CONFIG_ARCH_PROC_KCORE_TEXT=y
 CONFIG_ARM64_CPU_PARK=y
+CONFIG_ARM64_PMEM_RESERVE=y
+CONFIG_ARM64_PMEM_LEGACY_DEVICE=y
 
 #
 # Platform selection
@@ -6001,6 +6003,7 @@ CONFIG_ND_BTT=m
 CONFIG_BTT=y
 CONFIG_OF_PMEM=m
 CONFIG_NVDIMM_KEYS=y
+CONFIG_PMEM_LEGACY=m
 CONFIG_DAX_DRIVER=y
 CONFIG_DAX=y
 CONFIG_DEV_DAX=m
diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig
index 44b7c7340d5961f1470455e07db0d8ef1eb0df01..c310e38fd6e72b43c4a19acad7b6776a2006f6f6 100644
--- a/arch/x86/configs/openeuler_defconfig
+++ b/arch/x86/configs/openeuler_defconfig
@@ -7373,6 +7373,7 @@ CONFIG_NVDIMM_PFN=y
 CONFIG_NVDIMM_DAX=y
 CONFIG_OF_PMEM=m
 CONFIG_NVDIMM_KEYS=y
+CONFIG_PMEM_LEGACY=m
 CONFIG_DAX_DRIVER=y
 CONFIG_DAX=y
 CONFIG_DEV_DAX=m