Index: tools/ew.py
===================================================================
--- tools/ew.py	(revision d4b7b291736584f69f42f9171ffa7a62fe5ee6c7)
+++ tools/ew.py	(revision d5a89a3a3de1e754f1702111bb064b10ea5b097d)
@@ -135,5 +135,12 @@
 	hdisk_mk()
 
-	return ' -drive file=hdisk.img,index=0,media=disk,format=raw'
+	hdd_options = ''
+	if 'hdd' in overrides.keys():
+		if 'ata' in overrides['hdd'].keys():
+			hdd_options += ''
+		elif 'virtio-blk' in overrides['hdd'].keys():
+			hdd_options += ',if=virtio'
+
+	return ' -drive file=hdisk.img,index=0,media=disk,format=raw' + hdd_options
 
 def qemu_nic_ne2k_options():
@@ -336,5 +343,5 @@
 def usage():
 	print("%s - emulator wrapper for running HelenOS\n" % os.path.basename(sys.argv[0]))
-	print("%s [-d] [-h] [-net e1k|rtl8139|ne2k|virtio-net] [-nohdd] [-nokvm] [-nonet] [-nosnd] [-nousb] [-noxhci] [-notablet]\n" %
+	print("%s [-d] [-h] [-net e1k|rtl8139|ne2k|virtio-net] [-hdd ata|virtio-blk] [-nohdd] [-nokvm] [-nonet] [-nosnd] [-nousb] [-noxhci] [-notablet]\n" %
 	    os.path.basename(sys.argv[0]))
 	print("-d\tDry run: do not run the emulation, just print the command line.")
@@ -357,4 +364,5 @@
 def run():
 	expect_nic = False
+	expect_hdd = False
 	expect_qemu = False
 
@@ -378,4 +386,17 @@
 			continue
 
+		if expect_hdd:
+			expect_hdd = False
+			if not 'hdd' in overrides.keys():
+				overrides['hdd'] = {}
+			if sys.argv[i] == 'ata':
+				overrides['hdd']['ata'] = True
+			elif sys.argv[i] == 'virtio-blk':
+				overrides['hdd']['virtio-blk'] = True
+			else:
+				usage()
+				exit()
+			continue
+
 		if expect_qemu:
 			expect_qemu = False
@@ -389,4 +410,6 @@
 		elif sys.argv[i] == '-net' and i < len(sys.argv) - 1:
 			expect_nic = True
+		elif sys.argv[i] == '-hdd' and i < len(sys.argv) - 1:
+			expect_hdd = True
 		elif sys.argv[i] == '-nohdd':
 			overrides['nohdd'] = True