diff --git a/src/main/scala/vexriscv/demo/GenZephyr.scala b/src/main/scala/vexriscv/demo/GenSecure.scala
similarity index 96%
rename from src/main/scala/vexriscv/demo/GenZephyr.scala
rename to src/main/scala/vexriscv/demo/GenSecure.scala
index 4666ec4..2835b44 100644
--- a/src/main/scala/vexriscv/demo/GenZephyr.scala
+++ b/src/main/scala/vexriscv/demo/GenSecure.scala
@@ -5,7 +5,7 @@ import vexriscv.ip.{DataCacheConfig, InstructionCacheConfig}
 import vexriscv.{plugin, VexRiscv, VexRiscvConfig}
 import spinal.core._
 
-object GenZephyr extends App {
+object GenSecure extends App {
   def cpu() = new VexRiscv(
     config = VexRiscvConfig(
       plugins = List(
@@ -71,7 +71,7 @@ object GenZephyr extends App {
           mulUnrollFactor = 1,
           divUnrollFactor = 1
         ),
-        new CsrPlugin(CsrPluginConfig.zephyr(0x00000020l)),
+        new CsrPlugin(CsrPluginConfig.secure(0x00000020l)),
         new DebugPlugin(ClockDomain.current.clone(reset = Bool().setName("debugReset"))),
         new BranchPlugin(
           earlyBranch = false,
diff --git a/src/main/scala/vexriscv/plugin/CsrPlugin.scala b/src/main/scala/vexriscv/plugin/CsrPlugin.scala
index cabc262..315d3e5 100644
--- a/src/main/scala/vexriscv/plugin/CsrPlugin.scala
+++ b/src/main/scala/vexriscv/plugin/CsrPlugin.scala
@@ -264,13 +264,13 @@ object CsrPluginConfig{
     uinstretAccess = CsrAccess.NONE
   )
 
-  def zephyr(mtvecInit : BigInt) = CsrPluginConfig(
+  def secure(mtvecInit : BigInt) = CsrPluginConfig(
     catchIllegalAccess = true,
     mvendorid           = 1,
     marchid             = 2,
     mimpid              = 3,
     mhartid             = 0,
-    misaExtensionsInit  = 0x103124, // RV32CFIMNU
+    misaExtensionsInit  = 0x101064, // RV32GCFMU
     misaAccess          = CsrAccess.READ_WRITE,
     mtvecAccess         = CsrAccess.READ_WRITE,
     mtvecInit           = mtvecInit,
diff --git a/src/test/cpp/raw/pmp/.gdbinit b/src/test/cpp/raw/pmp/.gdbinit
deleted file mode 100644
index 45fceb2..0000000
--- a/src/test/cpp/raw/pmp/.gdbinit
+++ /dev/null
@@ -1,3 +0,0 @@
-target remote localhost:3333
-monitor reset halt
-load
diff --git a/src/test/cpp/regression/main.cpp b/src/test/cpp/regression/main.cpp
index 99393ac..d5788f5 100644
--- a/src/test/cpp/regression/main.cpp
+++ b/src/test/cpp/regression/main.cpp
@@ -373,7 +373,7 @@ public:
 			uint32_t ppn1 : 12;
 		};
 	};
-	
+
 
 	bool lrscReserved;
 
diff --git a/src/test/scala/vexriscv/TestIndividualFeatures.scala b/src/test/scala/vexriscv/TestIndividualFeatures.scala
index b2f35aa..75d3405 100644
--- a/src/test/scala/vexriscv/TestIndividualFeatures.scala
+++ b/src/test/scala/vexriscv/TestIndividualFeatures.scala
@@ -517,6 +517,7 @@ trait CatchAllPosition
 
 class CsrDimension(freertos : String, zephyr : String, linux : String) extends VexRiscvDimension("Csr") {
   override def randomPositionImpl(universes: Seq[ConfigUniverse], r: Random) = {
+    val pmp = universes.contains(VexRiscvUniverse.PMP)
     val catchAll = universes.contains(VexRiscvUniverse.CATCH_ALL)
     val supervisor = universes.contains(VexRiscvUniverse.SUPERVISOR)
     if(supervisor){
@@ -524,9 +525,14 @@ class CsrDimension(freertos : String, zephyr : String, linux : String) extends V
         override def applyOn(config: VexRiscvConfig): Unit = config.plugins += new CsrPlugin(CsrPluginConfig.linuxFull(0x80000020l))
         override def testParam = s"FREERTOS=$freertos ZEPHYR=$zephyr LINUX_REGRESSION=$linux SUPERVISOR=yes"
       }
+    } else if(pmp){
+      new VexRiscvPosition("Secure") with CatchAllPosition{
+        override def applyOn(config: VexRiscvConfig): Unit = config.plugins += new CsrPlugin(CsrPluginConfig.secure(0x80000020l))
+        override def testParam = s"CSR=yes CSR_SKIP_TEST=yes FREERTOS=$freertos ZEPHYR=$zephyr"
+      }
     } else if(catchAll){
       new VexRiscvPosition("MachineOs") with CatchAllPosition{
-        override def applyOn(config: VexRiscvConfig): Unit = config.plugins += new CsrPlugin(CsrPluginConfig.zephyr(0x80000020l))
+        override def applyOn(config: VexRiscvConfig): Unit = config.plugins += new CsrPlugin(CsrPluginConfig.all(0x80000020l))
         override def testParam = s"CSR=yes CSR_SKIP_TEST=yes FREERTOS=$freertos ZEPHYR=$zephyr"
       }
     } else if(r.nextDouble() < 0.3){
@@ -655,6 +661,7 @@ class TestIndividualFeatures extends MultithreadedFunSuite {
   val rvcRate = sys.env.getOrElse("VEXRISCV_REGRESSION_CONFIG_RVC_RATE", "0.5").toDouble
   val linuxRate = sys.env.getOrElse("VEXRISCV_REGRESSION_CONFIG_LINUX_RATE", "0.3").toDouble
   val machineOsRate = sys.env.getOrElse("VEXRISCV_REGRESSION_CONFIG_MACHINE_OS_RATE", "0.5").toDouble
+  val secureRate = sys.env.getOrElse("VEXRISCV_REGRESSION_CONFIG_SECURE_RATE", "0.5").toDouble
   val linuxRegression = sys.env.getOrElse("VEXRISCV_REGRESSION_LINUX_REGRESSION", "yes")
   val coremarkRegression = sys.env.getOrElse("VEXRISCV_REGRESSION_COREMARK", "yes")
   val zephyrCount = sys.env.getOrElse("VEXRISCV_REGRESSION_ZEPHYR_COUNT", "4")
@@ -761,17 +768,26 @@ class TestIndividualFeatures extends MultithreadedFunSuite {
       if(demwRate < rand.nextDouble()){
         universe += VexRiscvUniverse.NO_WRITEBACK
       }
-    } else {
-      if(machineOsRate > rand.nextDouble()) {
+    } else if (secureRate > rand.nextDouble()) {
         universe += VexRiscvUniverse.CACHE_ALL
         universe += VexRiscvUniverse.CATCH_ALL
         universe += VexRiscvUniverse.PMP
         if(demwRate < rand.nextDouble()){
           universe += VexRiscvUniverse.NO_WRITEBACK
         }
+    } else {
+      if(machineOsRate > rand.nextDouble()) {
+        universe += VexRiscvUniverse.CATCH_ALL
+        if(demwRate < rand.nextDouble()){
+          universe += VexRiscvUniverse.NO_WRITEBACK
+        }
       }
-      if(demRate > rand.nextDouble()){
+      if(demwRate > rand.nextDouble()){
+      }else if(demRate > rand.nextDouble()){
         universe += VexRiscvUniverse.NO_WRITEBACK
+      } else {
+        universe += VexRiscvUniverse.NO_WRITEBACK
+        universe += VexRiscvUniverse.NO_MEMORY
       }
     }