random mix of tidbits

configs/test/fs.py:
    update fs.py to use a bus bridge
cpu/simple/cpu.hh:
    cpu should just return that it doesn't snoop any address ranges
python/m5/objects/System.py:
    move boot_osflags to system

--HG--
extra : convert_revision : b4256df7eada7e65b69513361de8bffc3fdd680b

configs/test/fs.py

@@ -139,9 +139,13 @@ class LinuxTsunami(BaseTsunami):
                         pci_func=0, pci_dev=0, pci_bus=0)
 
 class LinuxAlphaSystem(LinuxAlphaSystem):
-    magicbus = Bus()
+    magicbus = Bus(bus_id=0)
+    magicbus2 = Bus(bus_id=1)
+    bridge = Bridge()
     physmem = PhysicalMemory(range = AddrRange('128MB'))
-    c1 = Connector(side_a=Parent.physmem, side_b=Parent.magicbus)
+    c0a = Connector(side_a=Parent.magicbus, side_b=Parent.bridge, side_b_name="side_a")
+    c0b = Connector(side_a=Parent.magicbus2, side_b=Parent.bridge, side_b_name="side_b")
+    c1 = Connector(side_a=Parent.physmem, side_b=Parent.magicbus2)
     tsunami = LinuxTsunami()
     c2 = Connector(side_a=Parent.tsunami.cchip, side_a_name='pio', side_b=Parent.magicbus)
     c3 = Connector(side_a=Parent.tsunami.pchip, side_a_name='pio', side_b=Parent.magicbus)
@@ -177,7 +181,7 @@ class LinuxAlphaSystem(LinuxAlphaSystem):
                              read_only=True)
     simple_disk = SimpleDisk(disk=Parent.raw_image)
     intrctrl = IntrControl()
-    cpu = SimpleCPU(mem=Parent.magicbus)
+    cpu = SimpleCPU(mem=Parent.magicbus2)
     sim_console = SimConsole(listener=ConsoleListener(port=3456))
     kernel = '/z/saidi/work/m5.newmem/build/vmlinux'
     pal = binary('ts_osfpal')

cpu/simple/cpu.hh

@@ -103,6 +103,10 @@ class SimpleCPU : public BaseCPU
         virtual void recvStatusChange(Status status);
 
         virtual Packet *recvRetry();
+
+        virtual void getDeviceAddressRanges(AddrRangeList &resp,
+            AddrRangeList &snoop)
+        { resp.clear(); snoop.clear(); }
     };
 
     MemObject *mem;

python/m5/objects/System.py

@@ -9,6 +9,7 @@ class System(SimObject):
         init_param = Param.UInt64(0, "numerical value to pass into simulator")
         bin = Param.Bool(False, "is this system binned")
         binned_fns = VectorParam.String([], "functions broken down and binned")
+        boot_osflags = Param.String("a", "boot flags to pass to the kernel")
         kernel = Param.String("file that contains the kernel code")
         readfile = Param.String("", "file to read startup script from")
 
@@ -16,6 +17,5 @@ class AlphaSystem(System):
     type = 'AlphaSystem'
     console = Param.String("file that contains the console code")
     pal = Param.String("file that contains palcode")
-    boot_osflags = Param.String("a", "boot flags to pass to the kernel")
     system_type = Param.UInt64("Type of system we are emulating")
     system_rev = Param.UInt64("Revision of system we are emulating")