diff --git a/src/dev/riscv/Plic.py b/src/dev/riscv/Plic.py
index 33b6940c3f..b4486b9350 100644
--- a/src/dev/riscv/Plic.py
+++ b/src/dev/riscv/Plic.py
@@ -1,4 +1,5 @@
 # Copyright (c) 2021 Huawei International
+# Copyright (c) 2023 Google LLC
 # All rights reserved.
 #
 # The license below extends only to copyright in the software and shall
@@ -39,7 +40,22 @@ from m5.proxy import *
 from m5.util.fdthelper import *
 
 
-class Plic(BasicPioDevice):
+class PlicBase(BasicPioDevice):
+    """
+    This is abstract class of PLIC and
+    define interface to handle received
+    interrupt singal from device
+    """
+
+    type = "PlicBase"
+    cxx_header = "dev/riscv/plic.hh"
+    cxx_class = "gem5::PlicBase"
+    abstract = True
+
+    pio_size = Param.Addr("PIO Size")
+
+
+class Plic(PlicBase):
     """
     This implementation of PLIC is based on
     the SiFive U54MC datasheet:
@@ -51,7 +67,7 @@ class Plic(BasicPioDevice):
     type = "Plic"
     cxx_header = "dev/riscv/plic.hh"
     cxx_class = "gem5::Plic"
-    pio_size = Param.Addr(0x4000000, "PIO Size")
+    pio_size = 0x4000000
     n_src = Param.Int("Number of interrupt sources")
     n_contexts = Param.Int(
         "Number of interrupt contexts. Usually the number "
diff --git a/src/dev/riscv/SConscript b/src/dev/riscv/SConscript
index af0b96b88e..6e3376bb02 100755
--- a/src/dev/riscv/SConscript
+++ b/src/dev/riscv/SConscript
@@ -2,6 +2,7 @@
 
 # Copyright (c) 2021 Huawei International
 # Copyright (c) 2022 EXAscale Performance SYStems (EXAPSYS)
+# Copyright (c) 2023 Google LLC
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -34,7 +35,7 @@ SimObject('HiFive.py', sim_objects=['HiFive', 'GenericRiscvPciHost'],
 SimObject('LupV.py', sim_objects=['LupV'], tags='riscv isa')
 SimObject('Clint.py', sim_objects=['Clint'], tags='riscv isa')
 SimObject('PlicDevice.py', sim_objects=['PlicIntDevice'], tags='riscv isa')
-SimObject('Plic.py', sim_objects=['Plic'], tags='riscv isa')
+SimObject('Plic.py', sim_objects=['PlicBase', 'Plic'], tags='riscv isa')
 SimObject('RTC.py', sim_objects=['RiscvRTC'], tags='riscv isa')
 SimObject('RiscvVirtIOMMIO.py', sim_objects=['RiscvMmioVirtIO'],
     tags='riscv isa')
diff --git a/src/dev/riscv/plic.cc b/src/dev/riscv/plic.cc
index 371af9e78a..fd42920dc5 100644
--- a/src/dev/riscv/plic.cc
+++ b/src/dev/riscv/plic.cc
@@ -45,6 +45,7 @@
 #include "mem/packet.hh"
 #include "mem/packet_access.hh"
 #include "params/Plic.hh"
+#include "params/PlicBase.hh"
 #include "sim/system.hh"
 
 namespace gem5
@@ -53,7 +54,7 @@ namespace gem5
 using namespace RiscvISA;
 
 Plic::Plic(const Params &params) :
-    BasicPioDevice(params, params.pio_size),
+    PlicBase(params),
     system(params.system),
     nSrc(params.n_src),
     nContext(params.n_contexts),
diff --git a/src/dev/riscv/plic.hh b/src/dev/riscv/plic.hh
index d077e73617..00128ee56c 100644
--- a/src/dev/riscv/plic.hh
+++ b/src/dev/riscv/plic.hh
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2021 Huawei International
+ * Copyright (c) 2023 Google LLC
  * All rights reserved
  *
  * The license below extends only to copyright in the software and shall
@@ -47,6 +48,7 @@
 #include "mem/packet.hh"
 #include "mem/packet_access.hh"
 #include "params/Plic.hh"
+#include "params/PlicBase.hh"
 #include "sim/system.hh"
 
 namespace gem5
@@ -94,7 +96,21 @@ struct PlicOutput
   std::vector<uint32_t> maxPriority;
 };
 
-class Plic : public BasicPioDevice
+class PlicBase : public BasicPioDevice
+{
+  public:
+    typedef PlicBaseParams Params;
+    PlicBase(const Params &params) :
+      BasicPioDevice(params, params.pio_size)
+    {}
+
+    // Interrupt interface to send signal to PLIC
+    virtual void post(int src_id) = 0;
+    // Interrupt interface to clear signal to PLIC
+    virtual void clear(int src_id) = 0;
+};
+
+class Plic : public PlicBase
 {
   // Params
   protected:
@@ -125,8 +141,8 @@ class Plic : public BasicPioDevice
     /**
      * Interrupt interface
      */
-    void post(int src_id);
-    void clear(int src_id);
+    void post(int src_id) override;
+    void clear(int src_id) override;
 
     /**
      * SimObject functions