diff --git a/fpga/tests/dma.cpp b/fpga/tests/dma.cpp
index cb6b722f6..e7c462b26 100644
--- a/fpga/tests/dma.cpp
+++ b/fpga/tests/dma.cpp
@@ -26,38 +26,52 @@ Test(fpga, dma, .description = "DMA")
 
 		auto dma = reinterpret_cast<villas::fpga::ip::Dma&>(*ip);
 
-		if(not dma.connectLoopback()) {
+		if(not dma.loopbackPossible()) {
+			logger->info("Loopback test not possible for {}", *ip);
 			continue;
 		}
 
 		count++;
 
-		if(not dma.loopbackPossible()) {
-			logger->info("Loopback test not possible for {}", *ip);
-			continue;
-		}
+
+		// Simple DMA can only transfer up to 4 kb due to PCIe page size burst
+		// limitation
+		size_t len = 4 * (1 << 10);
 
 		// find a block RAM IP to write to
 		auto bramIp = state.cards.front()->lookupIp(villas::fpga::Vlnv("xilinx.com:ip:axi_bram_ctrl:"));
 		auto bram = reinterpret_cast<villas::fpga::ip::Bram*>(bramIp);
 		cr_assert_not_null(bram, "Couldn't find BRAM");
 
-		// Simple DMA can only transfer up to 4 kb due to PCIe page size burst
-		// limitation
-		size_t len = 4 * (1 << 10);
 
 		/* Allocate memory to use with DMA */
-		auto src = villas::HostRam::getAllocator().allocate<char>(len);
-		auto dst = bram->getAllocator().allocate<char>(len);
+		auto src = villas::HostDmaRam::getAllocator().allocate<char>(len);
+		auto dst = villas::HostDmaRam::getAllocator().allocate<char>(len);
+
+		/* ... only works with IOMMU enabled currently */
+//		auto src = bram->getAllocator().allocate<char>(len);
+//		auto dst = bram->getAllocator().allocate<char>(len);
+
+		/* ... only works with IOMMU enabled currently */
+//		auto src = villas::HostRam::getAllocator().allocate<char>(len);
+//		auto dst = villas::HostRam::getAllocator().allocate<char>(len);
+
+		/* Make sure memory is accessible for DMA */
+		cr_assert(dma.makeAccesibleFromVA(src.getMemoryBlock()),
+		          "Source memory not accessible for DMA");
+		cr_assert(dma.makeAccesibleFromVA(dst.getMemoryBlock()),
+		          "Destination memory not accessible for DMA");
 
 		/* Get new random data */
 		const size_t lenRandom = read_random(&src, len);
 		cr_assert(len == lenRandom, "Failed to get random data");
 
+
 		/* Start transfer */
 		cr_assert(dma.memcpy(src.getMemoryBlock(), dst.getMemoryBlock(), len),
 		          "DMA ping pong failed");
 
+
 		/* Compare data */
 		cr_assert(memcmp(&src, &dst, len) == 0, "Data not equal");