diff --git a/Android.mk b/Android.mk
index ab18a86..39d18d0 100755
--- a/Android.mk
+++ b/Android.mk
@@ -94,3 +94,17 @@ LOCAL_CFLAGS := $(EFIWRAPPER_CFLAGS)
 LOCAL_SRC_FILES := \
 	main.c
 include $(BUILD_IAFW_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_PATH := $(EFIWRAPPER_LOCAL_PATH)
+LOCAL_MODULE := efiwrapper-cd-$(TARGET_BUILD_VARIANT)
+LOCAL_STATIC_LIBRARIES := \
+	libefiwrapper-cd-$(TARGET_BUILD_VARIANT) \
+	libgnuefi \
+	libefi \
+	libefiwrapper_drivers-cd-$(TARGET_BUILD_VARIANT)
+LOCAL_CFLAGS := $(EFIWRAPPER_CFLAGS)
+LOCAL_CFLAGS += -D__CRASH_DUMP
+LOCAL_SRC_FILES := \
+	main.c
+include $(BUILD_IAFW_STATIC_LIBRARY)
\ No newline at end of file
diff --git a/drivers/Android.mk b/drivers/Android.mk
index c0bc20b..c075e99 100644
--- a/drivers/Android.mk
+++ b/drivers/Android.mk
@@ -40,3 +40,42 @@ LOCAL_CFLAGS := $(EFIWRAPPER_CFLAGS)
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/../include/hardware
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/../../external/coreboot/payloads/libpayload/include
 include $(BUILD_IAFW_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libefiwrapper_drivers-cd-$(TARGET_BUILD_VARIANT)
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+LOCAL_STATIC_LIBRARIES := \
+	libpayload \
+	libefiwrapper-cd-$(TARGET_BUILD_VARIANT) \
+	libgnuefi \
+	libefi
+LOCAL_SRC_FILES := \
+	$(foreach drv, $(LIBEFIWRAPPER_DRIVERS_CD), \
+		$(subst $(LOCAL_PATH)/,,$(wildcard $(LOCAL_PATH)/$(drv)/*.c)))
+GEN := $(local-generated-sources-dir)/drivers.c
+ifeq ($(LIBEFIWRAPPER_DRIVERS_CD),)
+$(GEN):
+	$(hide) mkdir -p $(dir $@)
+	$(hide)	echo "/* Do not modify this auto-generated file. */" > $@
+	$(hide) echo "#error \"no driver selected.  Cf. LIBEFIWRAPPER_DRIVERS_CD Makefile variable.\"" >> $@
+else
+$(GEN):
+	$(hide) mkdir -p $(dir $@)
+	$(hide) echo "/* Do not modify this auto-generated file. */" > $@
+	$(hide) echo "#include \"ewdrv.h\"" >> $@
+	$(hide) $(foreach drv, $(LIBEFIWRAPPER_DRIVERS_CD), echo "#include" \"$(drv)/$(drv).h\" >> $@;)
+	$(hide) echo "" >> $@
+	$(hide) echo "static ewdrv_t *drivers[] = {" >> $@
+	$(hide) $(foreach drv, $(LIBEFIWRAPPER_DRIVERS_CD), echo "&"$(drv)_drv, >> $@;)
+	$(hide) echo  "NULL" >> $@
+	$(hide) echo "};" >> $@
+	$(hide) echo "" >> $@
+	$(hide) echo "ewdrv_t **ew_drivers = drivers;" >> $@
+endif
+LOCAL_GENERATED_SOURCES := $(GEN)
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
+LOCAL_CFLAGS := $(EFIWRAPPER_CFLAGS)
+LOCAL_CFLAGS += -D__CRASH_DUMP
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/../include/hardware
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/../../external/coreboot/payloads/libpayload/include
+include $(BUILD_IAFW_STATIC_LIBRARY)
diff --git a/drivers/lpmemmap/lpmemmap.c b/drivers/lpmemmap/lpmemmap.c
index ed23833..e9e6e9c 100644
--- a/drivers/lpmemmap/lpmemmap.c
+++ b/drivers/lpmemmap/lpmemmap.c
@@ -46,6 +46,7 @@ static EFI_MEMORY_DESCRIPTOR *efimemmap;
 #define E820_ACPI         3
 #define E820_NVS          4
 #define E820_UNUSABLE     5
+#define E820_VENDOR_RSVD  6
 #define EFI_MAX_ADDRESS ((UINTN)~0)
 
 static EFI_STATUS e820_to_efi(unsigned int e820, UINT32 *efi)
@@ -71,6 +72,10 @@ static EFI_STATUS e820_to_efi(unsigned int e820, UINT32 *efi)
 		*efi = EfiUnusableMemory;
 		return EFI_SUCCESS;
 
+	case E820_VENDOR_RSVD:
+		*efi = EfiLoaderCode;
+		return EFI_SUCCESS;
+
 	default:
 		return EFI_NOT_FOUND;
 	}
@@ -400,7 +405,9 @@ static EFI_GET_MEMORY_MAP saved_memmap_bs;
 static EFI_STATUS lpmemmap_init(EFI_SYSTEM_TABLE *st)
 {
 	EFI_STATUS ret;
+#ifndef __CRASH_DUMP
 	EFI_PHYSICAL_ADDRESS start, data, end;
+#endif
 
 	if (!st)
 		return EFI_INVALID_PARAMETER;
@@ -413,6 +420,7 @@ static EFI_STATUS lpmemmap_init(EFI_SYSTEM_TABLE *st)
 	if (EFI_ERROR(ret))
 		return ret;
 
+#ifndef __CRASH_DUMP
 	start = ALIGN_DOWN((EFI_PHYSICAL_ADDRESS)(UINTN)_start, EFI_PAGE_SIZE);
 	data = ALIGN_UP((EFI_PHYSICAL_ADDRESS)(UINTN)_heap, EFI_PAGE_SIZE);
 	ret = insert_mem_descr(start, data, EfiLoaderCode);
@@ -423,7 +431,7 @@ static EFI_STATUS lpmemmap_init(EFI_SYSTEM_TABLE *st)
 	ret = insert_mem_descr(data, end, EfiLoaderData);
 	if (EFI_ERROR(ret))
 		goto err;
-
+#endif
 	saved_memmap_bs = st->BootServices->GetMemoryMap;
 	st->BootServices->GetMemoryMap = get_memory_map;
 	st->BootServices->AllocatePages = allocate_pages;
@@ -432,9 +440,11 @@ static EFI_STATUS lpmemmap_init(EFI_SYSTEM_TABLE *st)
 
 	return EFI_SUCCESS;
 
+#ifndef __CRASH_DUMP
 err:
 	free_efimemmap();
 	return ret;
+#endif
 }
 
 static EFI_STATUS lpmemmap_exit(EFI_SYSTEM_TABLE *st)
diff --git a/drivers/nvme/NvmExpressBlockIo.c b/drivers/nvme/NvmExpressBlockIo.c
index a045b1f..7da5829 100644
--- a/drivers/nvme/NvmExpressBlockIo.c
+++ b/drivers/nvme/NvmExpressBlockIo.c
@@ -482,8 +482,10 @@ NvmeBlockIoWriteBlocks (
 	if (MediaId != Media->MediaId)
 		return EFI_MEDIA_CHANGED;
 
-	if (Buffer == NULL)
+#ifndef __CRASH_DUMP   // crash dump will dump from the address 0
+	if (Buffer == NULL) //remove this check, allow to write content of zero address to nvme
 		return EFI_INVALID_PARAMETER;
+#endif
 
 	if (BufferSize == 0)
 		return EFI_SUCCESS;
diff --git a/drivers/nvme/NvmExpressPassthru.c b/drivers/nvme/NvmExpressPassthru.c
index f03ddd6..edd04b5 100644
--- a/drivers/nvme/NvmExpressPassthru.c
+++ b/drivers/nvme/NvmExpressPassthru.c
@@ -635,6 +635,7 @@ NvmExpressPassThru (
 			Status = EFI_SUCCESS;
 		else {
 			Status = EFI_DEVICE_ERROR;
+			DEBUG_NVME ((EFI_D_ERROR, "NvmExpressPassThru:Cq->Sct = %d, Cq->Sc = %d\n",Cq->Sct,Cq->Sc ));
 			//
 			// Copy the Respose Queue entry for this command to the callers response buffer
 			//
diff --git a/drivers/nvme/nvme.c b/drivers/nvme/nvme.c
index 080bebd..98607cb 100644
--- a/drivers/nvme/nvme.c
+++ b/drivers/nvme/nvme.c
@@ -39,6 +39,9 @@ static struct supported_device {
 	u16 did;
 } SUPPORTED_DEVICES[] = {
 	{ .vid = 0x144d, .did = NVME_PCI_DID },
+	{ .vid = 0x144d, .did = 0xA808 },
+	{ .vid = 0x15b7, .did = 0x5019 },
+	{ .vid = 0x1344, .did = 0x6001 }, // for Micron device
 	{ .vid = 0x8086, .did = 0xF1A6 },
 };
 
diff --git a/libefiwrapper/Android.mk b/libefiwrapper/Android.mk
index 4563d48..39cdd1f 100644
--- a/libefiwrapper/Android.mk
+++ b/libefiwrapper/Android.mk
@@ -48,3 +48,18 @@ LOCAL_C_INCLUDES := \
 LOCAL_MODULE_HOST_ARCH := $(EFIWRAPPER_HOST_ARCH)
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/../include/libefiwrapper
 include $(BUILD_HOST_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libefiwrapper-cd-$(TARGET_BUILD_VARIANT)
+LOCAL_STATIC_LIBRARIES := \
+	libgnuefi \
+	libefi
+LOCAL_SRC_FILES := $(LIBEFIWRAPPER_SRC_FILES)
+LOCAL_CFLAGS := $(EFIWRAPPER_CFLAGS)
+LOCAL_CFLAGS += -D__CRASH_DUMP
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/../include/libefiwrapper \
+	$(LOCAL_PATH)/../../external/gnu-efi/gnu-efi-3.0/inc \
+	$(LOCAL_PATH)/../../external/gnu-efi/gnu-efi-3.0/inc/$(TARGET_EFI_ARCH_NAME) \
+	$(LOCAL_PATH)/../../external/gnu-efi/gnu-efi-3.0/inc/protocol
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/../include/libefiwrapper
+include $(BUILD_IAFW_STATIC_LIBRARY)
\ No newline at end of file
diff --git a/libefiwrapper/diskio.c b/libefiwrapper/diskio.c
index ba86efc..e48c3e9 100644
--- a/libefiwrapper/diskio.c
+++ b/libefiwrapper/diskio.c
@@ -134,7 +134,11 @@ diskio_write(_EFI_DISK_IO *This,
 	unsigned char *buf = Buffer, *block;
 	media_t *media;
 
-	if (!This || !Buffer)
+#ifndef __CRASH_DUMP
+	if (!This && !Buffer)
+#else  // crash dump need dump the address 0
+	if (!This)
+#endif
 		return EFI_INVALID_PARAMETER;
 
 	if (!diskio->media)