diff --git a/dv/uvm/Makefile b/dv/uvm/Makefile
index 9c2286f7..9e3374ce 100644
--- a/dv/uvm/Makefile
+++ b/dv/uvm/Makefile
@@ -34,12 +34,12 @@ LSF_CMD    		:=
 
 # Privileged CSR YAML description file
 CSR_FILE			:= ${DV_DIR}/riscv_dv_extension/csr_description.yaml
-# Address that privileged CSR test will write to to indicate end of test
+# Pass/fail signature address at the end of test
 END_SIGNATURE_ADDR	:= 0x8ffffffc
 # Value written to END_SIGNATURE_ADDR that indicates test success
-PASS_VAL  := 0x1
+PASS_VAL      := 0x1
 # Value written to END_SIGNATURE_ADDR that indicates test failure
-FAIL_VAL  := 0x0
+FAIL_VAL      := 0x0
 
 SHELL=/bin/bash
 
@@ -53,11 +53,14 @@ clean:
 	rm -rf ${OUT}
 
 # Common options for all targets
-COMMON_OPTS=--seed=${SEED} \
-            --test=${TEST} \
-            --testlist=${DV_DIR}/riscv_dv_extension/testlist.yaml \
-            --iterations=${ITERATIONS}
-            #--verbose=${VERBOSE}
+COMMON_OPTS:=--seed=${SEED} \
+             --test=${TEST} \
+             --testlist=${DV_DIR}/riscv_dv_extension/testlist.yaml \
+             --iterations=${ITERATIONS}
+
+ifeq ($(VERBOSE), 1)
+	COMMON_OPTS+=--verbose
+endif
 
 # Options used for privileged CSR test generation
 CSR_OPTS=--csr_yaml=${CSR_FILE} \
@@ -118,8 +121,8 @@ rtl_sim:
      --steps=sim \
      ${COMMON_OPTS} \
      --simulator=${SIMULATOR} \
-     --en_cov=${COV} \
-     --en_wave=${WAVES} \
+     --en_cov ${COV} \
+     --en_wave ${WAVES} \
      --sim_opts="+end_signature_addr=${END_SIGNATURE_ADDR} +pass_val=${PASS_VAL} +fail_val=${FAIL_VAL}" \
      ${SIM_OPTS}
 
diff --git a/dv/uvm/sim.py b/dv/uvm/sim.py
index 3f797ee6..05f2ff0f 100644
--- a/dv/uvm/sim.py
+++ b/dv/uvm/sim.py
@@ -45,7 +45,7 @@ def process_cmd(keyword, cmd, opts, enable):
     Processed command
   """
   if enable == "1":
-    return re.sub(keyword, opts, cmd)
+    return re.sub(keyword, opts.rstrip(), cmd)
   else:
     return re.sub(keyword, "", cmd)
 
@@ -165,6 +165,7 @@ def rtl_sim(sim_cmd, test_list, output_dir, bin_dir, lsf_cmd, seed, opts, verbos
   for test in test_list:
     for i in range(test['iterations']):
       rand_seed = get_seed(seed)
+      sim_cmd = re.sub("<seed>", str(rand_seed), sim_cmd)
       sim_dir = output_dir + ("/%s.%d" %(test['test'], i))
       run_cmd(("mkdir -p %s" % sim_dir))
       os.chdir(sim_dir)
@@ -174,7 +175,6 @@ def rtl_sim(sim_cmd, test_list, output_dir, bin_dir, lsf_cmd, seed, opts, verbos
       cmd = lsf_cmd + " " + sim_cmd.rstrip() + \
             (" +UVM_TESTNAME=%s " % test['rtl_test']) + \
             (" +bin=%s " % binary) + \
-            (" +ntb_random_seed=%d " % rand_seed) + \
             (" -l sim.log ")
       print("Running %s with %s" % (test['rtl_test'], binary))
       if verbose:
@@ -250,7 +250,7 @@ parser.add_argument("--simulator_yaml", type=str, default="yaml/rtl_simulation.y
                     help="RTL simulator setting YAML")
 parser.add_argument("--iss", type=str, default="spike",
                     help="Instruction set simulator")
-parser.add_argument("--verbose", type=int, default=0,
+parser.add_argument("-v", "--verbose", dest="verbose", action="store_true",
                     help="Verbose logging")
 parser.add_argument("--cmp_opts", type=str, default="",
                     help="Compile options for the generator")
@@ -267,6 +267,7 @@ parser.add_argument("--lsf_cmd", type=str, default="",
                           command is not specified")
 
 args = parser.parse_args()
+parser.set_defaults(verbose=False)
 cwd = os.path.dirname(os.path.realpath(__file__))
 
 # Create the output directory
diff --git a/dv/uvm/yaml/rtl_simulation.yaml b/dv/uvm/yaml/rtl_simulation.yaml
index be7f0e5b..ea7037f2 100644
--- a/dv/uvm/yaml/rtl_simulation.yaml
+++ b/dv/uvm/yaml/rtl_simulation.yaml
@@ -36,6 +36,7 @@
   sim:
     cmd: >
       <out>/vcs_simv +vcs+lic+wait <sim_opts> <wave_opts> <cov_opts>
+        +ntb_random_seed=<seed>
     cov_opts: >
       -cm line+tgl+assert+fsm+branch
       -cm_dir <out>/test.vdb