From 557bde43c331024eb5cecf4093a24a5b7a9cc266 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 12 Oct 2008 13:28:54 -0700
Subject: X86: Make APICs communicate through the memory system.

---
 src/arch/x86/interrupts.hh | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

(limited to 'src/arch/x86/interrupts.hh')

diff --git a/src/arch/x86/interrupts.hh b/src/arch/x86/interrupts.hh
index 1d5f600bd..c4760dc0f 100644
--- a/src/arch/x86/interrupts.hh
+++ b/src/arch/x86/interrupts.hh
@@ -62,16 +62,16 @@
 #include "arch/x86/faults.hh"
 #include "cpu/thread_context.hh"
 #include "dev/io_device.hh"
+#include "dev/x86/intdev.hh"
 #include "params/X86LocalApic.hh"
 #include "sim/eventq.hh"
-#include "sim/sim_object.hh"
 
 class ThreadContext;
 
 namespace X86ISA
 {
 
-class Interrupts : public BasicPioDevice
+class Interrupts : public BasicPioDevice, IntDev
 {
   protected:
     uint32_t regs[NUM_APIC_REGS];
@@ -108,6 +108,7 @@ class Interrupts : public BasicPioDevice
 
     Tick read(PacketPtr pkt);
     Tick write(PacketPtr pkt);
+    Tick recvMessage(PacketPtr pkt);
 
     void addressRanges(AddrRangeList &range_list)
     {
@@ -116,6 +117,13 @@ class Interrupts : public BasicPioDevice
                                      x86LocalAPICAddress(0, 0) + PageBytes));
     }
 
+    void getIntAddrRange(AddrRangeList &range_list)
+    {
+        range_list.clear();
+        range_list.push_back(RangeEx(x86InterruptAddress(0, 0),
+                    x86InterruptAddress(0, 0) + PhysAddrAPICRangeSize));
+    }
+
     uint32_t readReg(ApicRegIndex miscReg);
     void setReg(ApicRegIndex reg, uint32_t val);
     void setRegNoEffect(ApicRegIndex reg, uint32_t val)
@@ -123,7 +131,7 @@ class Interrupts : public BasicPioDevice
         regs[reg] = val;
     }
 
-    Interrupts(Params * p) : BasicPioDevice(p),
+    Interrupts(Params * p) : BasicPioDevice(p), IntDev(this),
                              latency(p->pio_latency), clock(0)
     {
         pioSize = PageBytes;
@@ -133,6 +141,13 @@ class Interrupts : public BasicPioDevice
         clear_all();
     }
 
+    Port *getPort(const std::string &if_name, int idx = -1)
+    {
+        if (if_name == "int_port")
+            return intPort;
+        return BasicPioDevice::getPort(if_name, idx);
+    }
+
     int InterruptLevel(uint64_t softint)
     {
         panic("Interrupts::InterruptLevel unimplemented!\n");
-- 
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