diff --git a/Android.mk b/Android.mk
index 2c32796..0d69b03 100644
--- a/Android.mk
+++ b/Android.mk
@@ -30,7 +30,7 @@ LOCAL_SRC_FILES := 	\
 	pmemalloc.cpp
 	
 LOCAL_MODULE := gralloc.$(TARGET_BOARD_PLATFORM)
-LOCAL_CFLAGS:= -DLOG_TAG=\"$(TARGET_BOARD_PLATFORM).gralloc\"
+LOCAL_CFLAGS:= -DLOG_TAG=\"$(TARGET_BOARD_PLATFORM).gralloc\" -DHOST
 
 ifneq (, $(filter msm7625_ffa msm7625_surf msm7627_ffa msm7627_surf msm7627_7x_ffa msm7627_7x_surf, $(QCOM_TARGET_PRODUCT)))
 LOCAL_CFLAGS += -DTARGET_MSM7x27
diff --git a/pmemalloc.cpp b/pmemalloc.cpp
index 91dc527..4997580 100644
--- a/pmemalloc.cpp
+++ b/pmemalloc.cpp
@@ -181,7 +181,9 @@ int PmemUserspaceAllocator::alloc_pmem_buffer(size_t size, int usage,
             } else {
                 LOGV("%s: mapped fd %d at offset %d, size %d", pmemdev, fd, offset, size);
                 memset((char*)base + offset, 0, size);
-                //cacheflush(intptr_t(base) + offset, intptr_t(base) + offset + size, 0);
+#ifdef HOST
+                 cacheflush(intptr_t(base) + offset, intptr_t(base) + offset + size, 0);
+#endif
                 *pBase = base;
                 *pOffset = offset;
                 *pFd = fd;