diff --git a/transport/Android.mk b/transport/Android.mk
deleted file mode 100644
index 8060f3b..0000000
--- a/transport/Android.mk
+++ /dev/null
@@ -1,62 +0,0 @@
-# This is a legacy library which is depended on by some old hidl-generated
-# makefiles. Now, '-java' libraries can work as both static and non-static
-# libraries.
-
-################################################################################
-LOCAL_PATH:= $(call my-dir)
-
-# TODO(b/68433855): re-enable building this in the PDK
-ifneq ($(TARGET_BUILD_PDK),true)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hidl.base-V1.0-java-static
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES := core-oj hwbinder
-
-#
-# Build types.hal (DebugInfo)
-#
-GEN := $(intermediates)/android/hidl/base/V1_0/DebugInfo.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/base/1.0/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hidl:system/libhidl/transport \
-        android.hidl.base@1.0::types.DebugInfo
-
-$(GEN): $(LOCAL_PATH)/base/1.0/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IBase.hal
-#
-GEN := $(intermediates)/android/hidl/base/V1_0/IBase.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/base/1.0/IBase.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/base/1.0/types.hal
-$(GEN): $(LOCAL_PATH)/base/1.0/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hidl:system/libhidl/transport \
-        android.hidl.base@1.0::IBase
-
-$(GEN): $(LOCAL_PATH)/base/1.0/IBase.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_STATIC_JAVA_LIBRARY)
-
-endif # TARGET_BUILD_PDK not true
-
-include $(LOCAL_PATH)/base/1.0/vts/functional/Android.mk
diff --git a/transport/HidlTransportUtils.cpp b/transport/HidlTransportUtils.cpp
index eda9b8a..4e952eb 100644
--- a/transport/HidlTransportUtils.cpp
+++ b/transport/HidlTransportUtils.cpp
@@ -16,16 +16,25 @@
 
 #include <hidl/HidlTransportUtils.h>
 
+#include <android/hidl/base/1.0/IBase.h>
+
 namespace android {
 namespace hardware {
 namespace details {
 
-Return<bool> canCastInterface(::android::hidl::base::V1_0::IBase* interface,
-        const char* castTo, bool emitError) {
+using ::android::hidl::base::V1_0::IBase;
+
+Return<bool> canCastInterface(IBase* interface, const char* castTo, bool emitError) {
     if (interface == nullptr) {
         return false;
     }
 
+    // b/68217907
+    // Every HIDL interface is a base interface.
+    if (std::string(IBase::descriptor) == castTo) {
+        return true;
+    }
+
     bool canCast = false;
     auto chainRet = interface->interfaceChain([&](const hidl_vec<hidl_string> &types) {
         for (size_t i = 0; i < types.size(); i++) {
@@ -46,7 +55,7 @@
     return canCast;
 }
 
-std::string getDescriptor(::android::hidl::base::V1_0::IBase* interface) {
+std::string getDescriptor(IBase* interface) {
     std::string myDescriptor{};
     auto ret = interface->interfaceDescriptor([&](const hidl_string &types) {
         myDescriptor = types.c_str();
diff --git a/transport/current.txt b/transport/current.txt
index 958d679..0251824 100644
--- a/transport/current.txt
+++ b/transport/current.txt
@@ -15,3 +15,7 @@
 # HALs released in Android O-MR1
 
 0b94dc876f749ed24a98f61c41d46ad75a27511163f1968a084213a33c684ef6 android.hidl.manager@1.1::IServiceManager
+
+# HALs released in Android P
+445da29052612c57db3a8504f6395814277dc3826ee0f166cc732031b35af496 android.hidl.memory.block@1.0::types
+2e19301ceb87fb0696cd8268fab9c41f95d23c7392d35bc575daaa6eb32807eb android.hidl.memory.token@1.0::IMemoryToken
diff --git a/vintfdata/manifest.xml b/vintfdata/manifest.xml
index e20add5..51d68eb 100644
--- a/vintfdata/manifest.xml
+++ b/vintfdata/manifest.xml
@@ -89,6 +89,16 @@
           <instance>vr</instance>
       </interface>
     </hal>
+    <hal>
+        <name>android.hardware.health</name>
+        <transport>hwbinder</transport>
+        <version>2.0</version>
+        <interface>
+            <name>IHealth</name>
+            <!-- The backup instance provided by healthd. -->
+            <instance>backup</instance>
+        </interface>
+    </hal>
     <hal format="native">
         <name>netutils-wrapper</name>
         <!--