dev-arm: Allow GICv3 to be externally(publicly) updated

Change-Id: Ifa7b745ea11e74c17024c22ae993b6103eecb744
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/66271
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/dev/arm/gic_v3.cc

@@ -286,6 +286,12 @@ Gicv3::postInt(uint32_t cpu, ArmISA::InterruptTypes int_type)
     ArmSystem::callClearStandByWfi(tc);
 }
 
+void
+Gicv3::update()
+{
+    distributor->update();
+}
+
 bool
 Gicv3::supportsVersion(GicVersion version)
 {

src/dev/arm/gic_v3.hh

@@ -206,6 +206,8 @@ class Gicv3 : public BaseGic, public Gicv3Registers
 
     void postInt(uint32_t cpu, ArmISA::InterruptTypes int_type);
 
+    void update();
+
   protected: // GIC state transfer
     void copyGicState(Gicv3Registers* from, Gicv3Registers* to);
 

src/dev/arm/gic_v3_distributor.hh

@@ -257,7 +257,6 @@ class Gicv3Distributor : public Serializable
 
     void serialize(CheckpointOut & cp) const override;
     void unserialize(CheckpointIn & cp) override;
-    void update();
     Gicv3CPUInterface* route(uint32_t int_id);
 
   public:
@@ -274,6 +273,7 @@ class Gicv3Distributor : public Serializable
                bool is_secure_access);
 
     void copy(Gicv3Registers *from, Gicv3Registers *to);
+    void update();
 };
 
 } // namespace gem5