diff --git a/target/board/generic_64bitonly_x86_64/BoardConfig.mk b/target/board/generic_64bitonly_x86_64/BoardConfig.mk
new file mode 100644
index 0000000..71c4357
--- /dev/null
+++ b/target/board/generic_64bitonly_x86_64/BoardConfig.mk
@@ -0,0 +1,45 @@
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# x86_64 emulator specific definitions
+TARGET_CPU_ABI := x86_64
+TARGET_ARCH := x86_64
+TARGET_ARCH_VARIANT := x86_64
+
+# Keep the following for 32-bit native code support
+# There are a few native services still on 32-bit modes, e.g. media & audio.
+# Remove them in S.
+TARGET_2ND_CPU_ABI := x86
+TARGET_2ND_ARCH := x86
+TARGET_2ND_ARCH_VARIANT := x86_64
+
+TARGET_PRELINK_MODULE := false
+include build/make/target/board/BoardConfigGsiCommon.mk
+include build/make/target/board/BoardConfigEmuCommon.mk
+
+BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
+
+BOARD_SEPOLICY_DIRS += device/generic/goldfish/sepolicy/x86
+
+# Wifi.
+BOARD_WLAN_DEVICE           := emulator
+BOARD_HOSTAPD_DRIVER        := NL80211
+BOARD_WPA_SUPPLICANT_DRIVER := NL80211
+BOARD_HOSTAPD_PRIVATE_LIB   := lib_driver_cmd_simulated
+BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_simulated
+WPA_SUPPLICANT_VERSION      := VER_0_8_X
+WIFI_DRIVER_FW_PATH_PARAM   := "/dev/null"
+WIFI_DRIVER_FW_PATH_STA     := "/dev/null"
+WIFI_DRIVER_FW_PATH_AP      := "/dev/null"
diff --git a/target/board/generic_64bitonly_x86_64/README.txt b/target/board/generic_64bitonly_x86_64/README.txt
new file mode 100644
index 0000000..dc7efd3
--- /dev/null
+++ b/target/board/generic_64bitonly_x86_64/README.txt
@@ -0,0 +1,7 @@
+The "generic_x86_64_app" product defines a non-hardware-specific IA target
+without a kernel or bootloader.
+
+It can be used to build the entire user-level system, and
+will work with the IA version of the emulator,
+
+This supports 64-bit apps only.
diff --git a/target/board/generic_64bitonly_x86_64/device.mk b/target/board/generic_64bitonly_x86_64/device.mk
new file mode 100644
index 0000000..bb49057
--- /dev/null
+++ b/target/board/generic_64bitonly_x86_64/device.mk
@@ -0,0 +1,24 @@
+#
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+ifdef NET_ETH0_STARTONBOOT
+  PRODUCT_PROPERTY_OVERRIDES += net.eth0.startonboot=1
+endif
+
+# Ensure we package the BIOS files too.
+PRODUCT_HOST_PACKAGES += \
+    bios.bin \
+    vgabios-cirrus.bin \
diff --git a/target/board/generic_64bitonly_x86_64/system.prop b/target/board/generic_64bitonly_x86_64/system.prop
new file mode 100644
index 0000000..ed9d173
--- /dev/null
+++ b/target/board/generic_64bitonly_x86_64/system.prop
@@ -0,0 +1,5 @@
+#
+# system.prop for generic sdk
+#
+
+rild.libpath=/vendor/lib64/libreference-ril.so
diff --git a/target/product/AndroidProducts.mk b/target/product/AndroidProducts.mk
index 8c069ba..61a7583 100644
--- a/target/product/AndroidProducts.mk
+++ b/target/product/AndroidProducts.mk
@@ -43,6 +43,7 @@
 
 else
 PRODUCT_MAKEFILES := \
+    $(LOCAL_DIR)/aosp_64bitonly_x86_64.mk \
     $(LOCAL_DIR)/aosp_arm64_ab.mk \
     $(LOCAL_DIR)/aosp_arm64.mk \
     $(LOCAL_DIR)/aosp_arm_ab.mk \
diff --git a/target/product/aosp_64bitonly_x86_64.mk b/target/product/aosp_64bitonly_x86_64.mk
new file mode 100644
index 0000000..4de4e0c
--- /dev/null
+++ b/target/product/aosp_64bitonly_x86_64.mk
@@ -0,0 +1,72 @@
+#
+# Copyright 2020 The Android Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+PRODUCT_USE_DYNAMIC_PARTITIONS := true
+
+# The system image of aosp_x86_64_app-userdebug is a GSI for the devices with:
+# - x86 64 bits user space
+# - 64 bits binder interface
+# - system-as-root
+# - VNDK enforcement
+# - compatible property override enabled
+
+# This is a build configuration for a full-featured build of the
+# Open-Source part of the tree. It's geared toward a US-centric
+# build quite specifically for the emulator, and might not be
+# entirely appropriate to inherit from for on-device configurations.
+
+# GSI for system/product & support 64-bit apps only
+$(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit_only.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/mainline_system.mk)
+
+# Enable mainline checking for excat this product name
+ifeq (aosp_64bitonly_x86_64,$(TARGET_PRODUCT))
+PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS := relaxed
+endif
+
+#
+# All components inherited here go to system_ext image
+#
+$(call inherit-product, $(SRC_TARGET_DIR)/product/handheld_system_ext.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/telephony_system_ext.mk)
+
+#
+# All components inherited here go to product image
+#
+$(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_product.mk)
+
+#
+# All components inherited here go to vendor image
+#
+$(call inherit-product-if-exists, device/generic/goldfish/x86_64-vendor.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/emulator_vendor.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/board/generic_x86_64/device.mk)
+
+#
+# Special settings for GSI releasing
+#
+ifeq (aosp_64bitonly_x86_64,$(TARGET_PRODUCT))
+$(call inherit-product, $(SRC_TARGET_DIR)/product/gsi_release.mk)
+endif
+
+PRODUCT_ARTIFACT_PATH_REQUIREMENT_ALLOWED_LIST += \
+    root/init.zygote64.rc
+
+# This build configuration supports 64-bit apps only
+PRODUCT_NAME := aosp_64bitonly_x86_64
+PRODUCT_DEVICE := generic_64bitonly_x86_64
+PRODUCT_BRAND := Android
+PRODUCT_MODEL := AOSP on x86_64 App