Merge ktlim@zizzer:/bk/m5

into  zamp.eecs.umich.edu:/z/ktlim2/m5-shadowregs

--HG--
extra : convert_revision : 31c1bcc2c52d88bd5133a2007f9feefa2c04b6aa

10 files changed, 1107 insertions, 0 deletions

diff --git a/arch/alpha/freebsd/system.cc b/arch/alpha/freebsd/system.cc
new file mode 100644
index 000000000..681d4ad46
--- /dev/null
+++ b/arch/alpha/freebsd/system.cc
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file
+ * Modifications for the FreeBSD kernel.
+ * Based on kern/linux/linux_system.cc.
+ *
+ */
+
+#include "arch/alpha/system.hh"
+#include "arch/alpha/freebsd/system.hh"
+#include "base/loader/symtab.hh"
+#include "cpu/exec_context.hh"
+#include "mem/functional/memory_control.hh"
+#include "mem/functional/physical.hh"
+#include "sim/builder.hh"
+#include "arch/isa_traits.hh"
+#include "sim/byteswap.hh"
+#include "arch/vtophys.hh"
+
+#define TIMER_FREQUENCY 1193180
+
+using namespace std;
+using namespace AlphaISA;
+
+FreebsdAlphaSystem::FreebsdAlphaSystem(Params *p)
+    : AlphaSystem(p)
+{
+    /**
+     * Any time DELAY is called just skip the function.
+     * Shouldn't we actually emulate the delay?
+     */
+    skipDelayEvent = addKernelFuncEvent<SkipFuncEvent>("DELAY");
+    skipCalibrateClocks =
+        addKernelFuncEvent<SkipCalibrateClocksEvent>("calibrate_clocks");
+}
+
+
+FreebsdAlphaSystem::~FreebsdAlphaSystem()
+{
+    delete skipDelayEvent;
+    delete skipCalibrateClocks;
+}
+
+
+void
+FreebsdAlphaSystem::doCalibrateClocks(ExecContext *xc)
+{
+    Addr ppc_vaddr = 0;
+    Addr timer_vaddr = 0;
+    Addr ppc_paddr = 0;
+    Addr timer_paddr = 0;
+
+    ppc_vaddr = (Addr)xc->regs.intRegFile[ArgumentReg1];
+    timer_vaddr = (Addr)xc->regs.intRegFile[ArgumentReg2];
+
+    ppc_paddr = vtophys(physmem, ppc_vaddr);
+    timer_paddr = vtophys(physmem, timer_vaddr);
+
+    uint8_t *ppc = physmem->dma_addr(ppc_paddr, sizeof(uint32_t));
+    uint8_t *timer = physmem->dma_addr(timer_paddr, sizeof(uint32_t));
+
+    *(uint32_t *)ppc = htog((uint32_t)Clock::Frequency);
+    *(uint32_t *)timer = htog((uint32_t)TIMER_FREQUENCY);
+}
+
+
+void
+FreebsdAlphaSystem::SkipCalibrateClocksEvent::process(ExecContext *xc)
+{
+    SkipFuncEvent::process(xc);
+    ((FreebsdAlphaSystem *)xc->system)->doCalibrateClocks(xc);
+}
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(FreebsdAlphaSystem)
+
+    Param<Tick> boot_cpu_frequency;
+    SimObjectParam<MemoryController *> memctrl;
+    SimObjectParam<PhysicalMemory *> physmem;
+
+    Param<string> kernel;
+    Param<string> console;
+    Param<string> pal;
+
+    Param<string> boot_osflags;
+    Param<string> readfile;
+    Param<unsigned int> init_param;
+
+    Param<uint64_t> system_type;
+    Param<uint64_t> system_rev;
+
+    Param<bool> bin;
+    VectorParam<string> binned_fns;
+    Param<bool> bin_int;
+
+END_DECLARE_SIM_OBJECT_PARAMS(FreebsdAlphaSystem)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(FreebsdAlphaSystem)
+
+    INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"),
+    INIT_PARAM(memctrl, "memory controller"),
+    INIT_PARAM(physmem, "phsyical memory"),
+    INIT_PARAM(kernel, "file that contains the kernel code"),
+    INIT_PARAM(console, "file that contains the console code"),
+    INIT_PARAM(pal, "file that contains palcode"),
+    INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
+                    "a"),
+    INIT_PARAM_DFLT(readfile, "file to read startup script from", ""),
+    INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
+    INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34),
+    INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10),
+    INIT_PARAM_DFLT(bin, "is this system to be binned", false),
+    INIT_PARAM(binned_fns, "functions to be broken down and binned"),
+    INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true)
+
+END_INIT_SIM_OBJECT_PARAMS(FreebsdAlphaSystem)
+
+CREATE_SIM_OBJECT(FreebsdAlphaSystem)
+{
+    AlphaSystem::Params *p = new AlphaSystem::Params;
+    p->name = getInstanceName();
+    p->boot_cpu_frequency = boot_cpu_frequency;
+    p->memctrl = memctrl;
+    p->physmem = physmem;
+    p->kernel_path = kernel;
+    p->console_path = console;
+    p->palcode = pal;
+    p->boot_osflags = boot_osflags;
+    p->init_param = init_param;
+    p->readfile = readfile;
+    p->system_type = system_type;
+    p->system_rev = system_rev;
+    p->bin = bin;
+    p->binned_fns = binned_fns;
+    p->bin_int = bin_int;
+    return new FreebsdAlphaSystem(p);
+}
+
+REGISTER_SIM_OBJECT("FreebsdAlphaSystem", FreebsdAlphaSystem)
+
diff --git a/arch/alpha/freebsd/system.hh b/arch/alpha/freebsd/system.hh
new file mode 100644
index 000000000..5d996955e
--- /dev/null
+++ b/arch/alpha/freebsd/system.hh
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __KERN_FREEBSD_FREEBSD_SYSTEM_HH__
+#define __KERN_FREEBSD_FREEBSD_SYSTEM_HH__
+
+#include "kern/system_events.hh"
+
+class FreebsdAlphaSystem : public AlphaSystem
+{
+  private:
+    class SkipCalibrateClocksEvent : public SkipFuncEvent
+    {
+      public:
+        SkipCalibrateClocksEvent(PCEventQueue *q, const std::string &desc,
+                                 Addr addr)
+            : SkipFuncEvent(q, desc, addr) {}
+        virtual void process(ExecContext *xc);
+    };
+
+    SkipFuncEvent *skipDelayEvent;
+    SkipCalibrateClocksEvent *skipCalibrateClocks;
+
+  public:
+    FreebsdAlphaSystem(Params *p);
+    ~FreebsdAlphaSystem();
+    void doCalibrateClocks(ExecContext *xc);
+
+};
+
+#endif // __KERN_FREEBSD_FREEBSD_SYSTEM_HH__
diff --git a/arch/alpha/linux/aligned.hh b/arch/alpha/linux/aligned.hh
new file mode 100644
index 000000000..cabecb283
--- /dev/null
+++ b/arch/alpha/linux/aligned.hh
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ARCH_ALPHA_LINUX_ALIGNED_HH__
+#define __ARCH_ALPHA_LINUX_ALIGNED_HH__
+
+
+/* GCC 3.3.X has a bug in which attributes+typedefs don't work. 3.2.X is fine
+ * as in 3.4.X, but the bug is marked will not fix in 3.3.X so here is
+ * the work around.
+ */
+#if (__GNUC__ == 3 && __GNUC_MINOR__  != 3) || __GNUC__ > 3
+typedef uint64_t uint64_ta __attribute__ ((aligned (8))) ;
+typedef int64_t int64_ta __attribute__ ((aligned (8))) ;
+typedef Addr Addr_a __attribute__ ((aligned (8))) ;
+#else
+#define uint64_ta uint64_t __attribute__ ((aligned (8)))
+#define int64_ta int64_t __attribute__ ((aligned (8)))
+#define Addr_a Addr __attribute__ ((aligned (8)))
+#endif /* __GNUC__ __GNUC_MINOR__ */
+
+#endif /* __ARCH_ALPHA_LINUX_ALIGNED_HH__ */
diff --git a/arch/alpha/linux/hwrpb.hh b/arch/alpha/linux/hwrpb.hh
new file mode 100644
index 000000000..869ce026b
--- /dev/null
+++ b/arch/alpha/linux/hwrpb.hh
@@ -0,0 +1,42 @@
+/*
+ * Copyright 1990 Hewlett-Packard Development Company, L.P.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __ARCH_ALPHA_LINUX_HWRPB_HH__
+#define __ARCH_ALPHA_LINUX_HWRPB_HH__
+
+#include "arch/alpha/linux/aligned.hh"
+
+namespace Linux {
+    struct pcb_struct {
+        uint64_ta rpb_ksp;
+        uint64_ta rpb_usp;
+        uint64_ta rpb_ptbr;
+        uint32_t rpb_cc;
+        uint32_t rpb_psn;
+        uint64_ta rpb_unique;
+        uint64_ta rpb_fen;
+        uint64_ta res1, res2;
+    };
+}
+#endif // __ARCH_ALPHA_LINUX_HWRPB_HH__
diff --git a/arch/alpha/linux/system.cc b/arch/alpha/linux/system.cc
new file mode 100644
index 000000000..6a820d14f
--- /dev/null
+++ b/arch/alpha/linux/system.cc
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file
+ * This code loads the linux kernel, console, pal and patches certain
+ * functions.  The symbol tables are loaded so that traces can show
+ * the executing function and we can skip functions. Various delay
+ * loops are skipped and their final values manually computed to speed
+ * up boot time.
+ */
+
+#include "arch/arguments.hh"
+#include "arch/vtophys.hh"
+#include "arch/alpha/linux/system.hh"
+#include "arch/alpha/linux/threadinfo.hh"
+#include "arch/alpha/system.hh"
+#include "base/loader/symtab.hh"
+#include "cpu/exec_context.hh"
+#include "cpu/base.hh"
+#include "dev/platform.hh"
+#include "kern/linux/printk.hh"
+#include "kern/linux/events.hh"
+#include "mem/functional/memory_control.hh"
+#include "mem/functional/physical.hh"
+#include "sim/builder.hh"
+#include "sim/byteswap.hh"
+
+using namespace std;
+using namespace AlphaISA;
+using namespace Linux;
+
+LinuxAlphaSystem::LinuxAlphaSystem(Params *p)
+    : AlphaSystem(p)
+{
+    Addr addr = 0;
+    Addr paddr = 0;
+
+    /**
+     * The symbol swapper_pg_dir marks the beginning of the kernel and
+     * the location of bootloader passed arguments
+     */
+    if (!kernelSymtab->findAddress("swapper_pg_dir", KernelStart)) {
+        panic("Could not determine start location of kernel");
+    }
+
+    /**
+     * Since we aren't using a bootloader, we have to copy the
+     * kernel arguments directly into the kernel's memory.
+     */
+    paddr = vtophys(physmem, CommandLine());
+    char *commandline = (char *)physmem->dma_addr(paddr, sizeof(uint64_t));
+    if (commandline)
+        strncpy(commandline, params()->boot_osflags.c_str(), CommandLineSize);
+
+    /**
+     * find the address of the est_cycle_freq variable and insert it
+     * so we don't through the lengthly process of trying to
+     * calculated it by using the PIT, RTC, etc.
+     */
+    if (kernelSymtab->findAddress("est_cycle_freq", addr)) {
+        paddr = vtophys(physmem, addr);
+        uint8_t *est_cycle_frequency =
+            physmem->dma_addr(paddr, sizeof(uint64_t));
+
+        if (est_cycle_frequency)
+            *(uint64_t *)est_cycle_frequency =
+                Clock::Frequency / p->boot_cpu_frequency;
+    }
+
+
+    /**
+     * EV5 only supports 127 ASNs so we are going to tell the kernel that the
+     * paritiuclar EV6 we have only supports 127 asns.
+     * @todo At some point we should change ev5.hh and the palcode to support
+     * 255 ASNs.
+     */
+    if (kernelSymtab->findAddress("dp264_mv", addr)) {
+        paddr = vtophys(physmem, addr);
+        char *dp264_mv = (char *)physmem->dma_addr(paddr, sizeof(uint64_t));
+
+        if (dp264_mv) {
+            *(uint32_t*)(dp264_mv+0x18) = LittleEndianGuest::htog((uint32_t)127);
+        } else
+            panic("could not translate dp264_mv addr\n");
+
+    } else
+        panic("could not find dp264_mv\n");
+
+#ifndef NDEBUG
+    kernelPanicEvent = addKernelFuncEvent<BreakPCEvent>("panic");
+    if (!kernelPanicEvent)
+        panic("could not find kernel symbol \'panic\'");
+
+#if 0
+    kernelDieEvent = addKernelFuncEvent<BreakPCEvent>("die_if_kernel");
+    if (!kernelDieEvent)
+        panic("could not find kernel symbol \'die_if_kernel\'");
+#endif
+
+#endif
+
+    /**
+     * Any time ide_delay_50ms, calibarte_delay or
+     * determine_cpu_caches is called just skip the
+     * function. Currently determine_cpu_caches only is used put
+     * information in proc, however if that changes in the future we
+     * will have to fill in the cache size variables appropriately.
+     */
+
+    skipIdeDelay50msEvent =
+        addKernelFuncEvent<SkipFuncEvent>("ide_delay_50ms");
+    skipDelayLoopEvent =
+        addKernelFuncEvent<SkipDelayLoopEvent>("calibrate_delay");
+    skipCacheProbeEvent =
+        addKernelFuncEvent<SkipFuncEvent>("determine_cpu_caches");
+    debugPrintkEvent = addKernelFuncEvent<DebugPrintkEvent>("dprintk");
+    idleStartEvent = addKernelFuncEvent<IdleStartEvent>("cpu_idle");
+
+    if (kernelSymtab->findAddress("alpha_switch_to", addr) && DTRACE(Thread)) {
+        printThreadEvent = new PrintThreadInfo(&pcEventQueue, "threadinfo",
+                                               addr + sizeof(MachInst) * 6);
+    } else {
+        printThreadEvent = NULL;
+    }
+
+    if (params()->bin_int) {
+        intStartEvent = addPalFuncEvent<InterruptStartEvent>("sys_int_21");
+        if (!intStartEvent)
+            panic("could not find symbol: sys_int_21\n");
+
+        intEndEvent = addPalFuncEvent<InterruptEndEvent>("rti_to_kern");
+        if (!intEndEvent)
+            panic("could not find symbol: rti_to_kern\n");
+
+        intEndEvent2 = addPalFuncEvent<InterruptEndEvent>("rti_to_user");
+        if (!intEndEvent2)
+            panic("could not find symbol: rti_to_user\n");
+
+        intEndEvent3 = addKernelFuncEvent<InterruptEndEvent>("do_softirq");
+        if (!intEndEvent3)
+            panic("could not find symbol: do_softirq\n");
+    }
+}
+
+LinuxAlphaSystem::~LinuxAlphaSystem()
+{
+#ifndef NDEBUG
+    delete kernelPanicEvent;
+#endif
+    delete skipIdeDelay50msEvent;
+    delete skipDelayLoopEvent;
+    delete skipCacheProbeEvent;
+    delete debugPrintkEvent;
+    delete idleStartEvent;
+    delete printThreadEvent;
+    delete intStartEvent;
+    delete intEndEvent;
+    delete intEndEvent2;
+}
+
+
+void
+LinuxAlphaSystem::setDelayLoop(ExecContext *xc)
+{
+    Addr addr = 0;
+    if (kernelSymtab->findAddress("loops_per_jiffy", addr)) {
+        Addr paddr = vtophys(physmem, addr);
+
+        uint8_t *loops_per_jiffy =
+            physmem->dma_addr(paddr, sizeof(uint32_t));
+
+        Tick cpuFreq = xc->cpu->frequency();
+        Tick intrFreq = platform->intrFrequency();
+        *(uint32_t *)loops_per_jiffy =
+            (uint32_t)((cpuFreq / intrFreq) * 0.9988);
+    }
+}
+
+
+void
+LinuxAlphaSystem::SkipDelayLoopEvent::process(ExecContext *xc)
+{
+    SkipFuncEvent::process(xc);
+    // calculate and set loops_per_jiffy
+    ((LinuxAlphaSystem *)xc->system)->setDelayLoop(xc);
+}
+
+void
+LinuxAlphaSystem::PrintThreadInfo::process(ExecContext *xc)
+{
+    Linux::ThreadInfo ti(xc);
+
+    DPRINTF(Thread, "Currently Executing Thread %s, pid %d, started at: %d\n",
+            ti.curTaskName(), ti.curTaskPID(), ti.curTaskStart());
+}
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(LinuxAlphaSystem)
+
+    Param<Tick> boot_cpu_frequency;
+    SimObjectParam<MemoryController *> memctrl;
+    SimObjectParam<PhysicalMemory *> physmem;
+
+    Param<string> kernel;
+    Param<string> console;
+    Param<string> pal;
+
+    Param<string> boot_osflags;
+    Param<string> readfile;
+    Param<unsigned int> init_param;
+
+    Param<uint64_t> system_type;
+    Param<uint64_t> system_rev;
+
+    Param<bool> bin;
+    VectorParam<string> binned_fns;
+    Param<bool> bin_int;
+
+END_DECLARE_SIM_OBJECT_PARAMS(LinuxAlphaSystem)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(LinuxAlphaSystem)
+
+    INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"),
+    INIT_PARAM(memctrl, "memory controller"),
+    INIT_PARAM(physmem, "phsyical memory"),
+    INIT_PARAM(kernel, "file that contains the kernel code"),
+    INIT_PARAM(console, "file that contains the console code"),
+    INIT_PARAM(pal, "file that contains palcode"),
+    INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
+                    "a"),
+    INIT_PARAM_DFLT(readfile, "file to read startup script from", ""),
+    INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
+    INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34),
+    INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10),
+    INIT_PARAM_DFLT(bin, "is this system to be binned", false),
+    INIT_PARAM(binned_fns, "functions to be broken down and binned"),
+    INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true)
+
+END_INIT_SIM_OBJECT_PARAMS(LinuxAlphaSystem)
+
+CREATE_SIM_OBJECT(LinuxAlphaSystem)
+{
+    AlphaSystem::Params *p = new AlphaSystem::Params;
+    p->name = getInstanceName();
+    p->boot_cpu_frequency = boot_cpu_frequency;
+    p->memctrl = memctrl;
+    p->physmem = physmem;
+    p->kernel_path = kernel;
+    p->console_path = console;
+    p->palcode = pal;
+    p->boot_osflags = boot_osflags;
+    p->init_param = init_param;
+    p->readfile = readfile;
+    p->system_type = system_type;
+    p->system_rev = system_rev;
+    p->bin = bin;
+    p->binned_fns = binned_fns;
+    p->bin_int = bin_int;
+    return new LinuxAlphaSystem(p);
+}
+
+REGISTER_SIM_OBJECT("LinuxAlphaSystem", LinuxAlphaSystem)
+
diff --git a/arch/alpha/linux/system.hh b/arch/alpha/linux/system.hh
new file mode 100644
index 000000000..035e2a427
--- /dev/null
+++ b/arch/alpha/linux/system.hh
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2004-2006 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ARCH_ALPHA_LINUX_SYSTEM_HH__
+#define __ARCH_ALPHA_LINUX_SYSTEM_HH__
+
+class ExecContext;
+
+class BreakPCEvent;
+class IdleStartEvent;
+
+#include "arch/alpha/system.hh"
+#include "kern/linux/events.hh"
+
+using namespace AlphaISA;
+using namespace Linux;
+using namespace std;
+
+/**
+ * This class contains linux specific system code (Loading, Events, Binning).
+ * It points to objects that are the system binaries to load and patches them
+ * appropriately to work in simulator.
+ */
+class LinuxAlphaSystem : public AlphaSystem
+{
+  private:
+    class SkipDelayLoopEvent : public SkipFuncEvent
+    {
+      public:
+        SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
+            : SkipFuncEvent(q, desc, addr) {}
+        virtual void process(ExecContext *xc);
+    };
+
+    class PrintThreadInfo : public PCEvent
+    {
+      public:
+        PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
+            : PCEvent(q, desc, addr) {}
+        virtual void process(ExecContext *xc);
+    };
+
+
+    /**
+     * Addresses defining where the kernel bootloader places various
+     * elements.  Details found in include/asm-alpha/system.h
+     */
+    Addr KernelStart; // Lookup the symbol swapper_pg_dir
+
+  public:
+    Addr InitStack() const { return KernelStart + 0x02000; }
+    Addr EmptyPGT() const  { return KernelStart + 0x04000; }
+    Addr EmptyPGE() const  { return KernelStart + 0x08000; }
+    Addr ZeroPGE() const   { return KernelStart + 0x0A000; }
+    Addr StartAddr() const { return KernelStart + 0x10000; }
+
+    Addr Param() const { return ZeroPGE() + 0x0; }
+    Addr CommandLine() const { return Param() + 0x0; }
+    Addr InitrdStart() const { return Param() + 0x100; }
+    Addr InitrdSize() const { return Param() + 0x108; }
+    static const int CommandLineSize = 256;
+
+  private:
+#ifndef NDEBUG
+    /** Event to halt the simulator if the kernel calls panic()  */
+    BreakPCEvent *kernelPanicEvent;
+
+    /** Event to halt the simulator if the kernel calls die_if_kernel  */
+    BreakPCEvent *kernelDieEvent;
+#endif
+
+    /**
+     * Event to skip determine_cpu_caches() because we don't support
+     * the IPRs that the code can access to figure out cache sizes
+     */
+    SkipFuncEvent *skipCacheProbeEvent;
+
+    /** PC based event to skip the ide_delay_50ms() call */
+    SkipFuncEvent *skipIdeDelay50msEvent;
+
+    /**
+     * PC based event to skip the dprink() call and emulate its
+     * functionality
+     */
+    DebugPrintkEvent *debugPrintkEvent;
+
+    /**
+     * Skip calculate_delay_loop() rather than waiting for this to be
+     * calculated
+     */
+    SkipDelayLoopEvent *skipDelayLoopEvent;
+
+    /**
+     * Event to print information about thread switches if the trace flag
+     * Thread is set
+     */
+    PrintThreadInfo *printThreadEvent;
+
+    /**
+     * Event to bin Interrupts seperately from kernel code
+     */
+    InterruptStartEvent *intStartEvent;
+
+    /**
+     * Event to bin Interrupts seperately from kernel code
+     */
+    InterruptEndEvent *intEndEvent;
+    InterruptEndEvent *intEndEvent2;
+    InterruptEndEvent *intEndEvent3;
+
+    /** Grab the PCBB of the idle process when it starts */
+    IdleStartEvent *idleStartEvent;
+
+  public:
+    LinuxAlphaSystem(Params *p);
+    ~LinuxAlphaSystem();
+
+    void setDelayLoop(ExecContext *xc);
+};
+
+#endif // __ARCH_ALPHA_LINUX_SYSTEM_HH__
diff --git a/arch/alpha/linux/thread_info.hh b/arch/alpha/linux/thread_info.hh
new file mode 100644
index 000000000..88791b00d
--- /dev/null
+++ b/arch/alpha/linux/thread_info.hh
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ARCH_ALPHA_LINUX_THREAD_INFO_H__
+#define __ARCH_ALPHA_LINUX_THREAD_INFO_H__
+
+#include "arch/alpha/linux/hwrpb.hh"
+
+namespace Linux {
+    struct thread_info {
+        struct pcb_struct       pcb;
+        Addr_a                  task;
+    };
+}
+
+#endif // __ARCH_ALPHA_LINUX_THREAD_INFO_H__
diff --git a/arch/alpha/linux/threadinfo.hh b/arch/alpha/linux/threadinfo.hh
new file mode 100644
index 000000000..bdb8e1e4c
--- /dev/null
+++ b/arch/alpha/linux/threadinfo.hh
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ARCH_ALPHA_LINUX_LINUX_TREADNIFO_HH__
+#define __ARCH_ALPHA_LINUX_LINUX_TREADNIFO_HH__
+
+#include "arch/alpha/linux/thread_info.hh"
+#include "cpu/exec_context.hh"
+#include "kern/linux/sched.hh"
+#include "sim/vptr.hh"
+
+namespace Linux {
+
+class ThreadInfo
+{
+  private:
+    ExecContext *xc;
+
+  public:
+    ThreadInfo(ExecContext *exec) : xc(exec) {}
+    ~ThreadInfo() {}
+
+    inline VPtr<thread_info>
+    curThreadInfo()
+    {
+        Addr current;
+
+        /* Each kernel stack is only 2 pages, the start of which is the
+         * thread_info struct. So we can get the address by masking off
+         * the lower 14 bits.
+         */
+        current = xc->regs.intRegFile[TheISA::StackPointerReg] & ~0x3fff;
+        return VPtr<thread_info>(xc, current);
+    }
+
+    inline VPtr<task_struct>
+    curTaskInfo()
+    {
+        Addr task = curThreadInfo()->task;
+        return VPtr<task_struct>(xc, task);
+    }
+
+    std::string
+    curTaskName()
+    {
+        return curTaskInfo()->name;
+    }
+
+    int32_t
+    curTaskPID()
+    {
+        return curTaskInfo()->pid;
+    }
+
+    uint64_t
+    curTaskStart()
+    {
+        return curTaskInfo()->start;
+    }
+};
+
+/* namespace Linux */ }
+
+#endif // __ARCH_ALPHA_LINUX_LINUX_THREADINFO_HH__
diff --git a/arch/alpha/tru64/system.cc b/arch/alpha/tru64/system.cc
new file mode 100644
index 000000000..d09a0c85d
--- /dev/null
+++ b/arch/alpha/tru64/system.cc
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2003-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "arch/alpha/tru64/system.hh"
+#include "arch/isa_traits.hh"
+#include "arch/vtophys.hh"
+#include "base/loader/symtab.hh"
+#include "base/trace.hh"
+#include "cpu/base.hh"
+#include "cpu/exec_context.hh"
+#include "kern/tru64/tru64_events.hh"
+#include "kern/system_events.hh"
+#include "mem/functional/memory_control.hh"
+#include "mem/functional/physical.hh"
+#include "sim/builder.hh"
+
+using namespace std;
+
+Tru64AlphaSystem::Tru64AlphaSystem(Tru64AlphaSystem::Params *p)
+    : AlphaSystem(p)
+{
+    Addr addr = 0;
+    if (kernelSymtab->findAddress("enable_async_printf", addr)) {
+        Addr paddr = vtophys(physmem, addr);
+        uint8_t *enable_async_printf =
+            physmem->dma_addr(paddr, sizeof(uint32_t));
+
+        if (enable_async_printf)
+            *(uint32_t *)enable_async_printf = 0;
+    }
+
+#ifdef DEBUG
+    kernelPanicEvent = addKernelFuncEvent<BreakPCEvent>("panic");
+    if (!kernelPanicEvent)
+        panic("could not find kernel symbol \'panic\'");
+#endif
+
+    badaddrEvent = addKernelFuncEvent<BadAddrEvent>("badaddr");
+    if (!badaddrEvent)
+        panic("could not find kernel symbol \'badaddr\'");
+
+    skipPowerStateEvent =
+        addKernelFuncEvent<SkipFuncEvent>("tl_v48_capture_power_state");
+    skipScavengeBootEvent =
+        addKernelFuncEvent<SkipFuncEvent>("pmap_scavenge_boot");
+
+#if TRACING_ON
+    printfEvent = addKernelFuncEvent<PrintfEvent>("printf");
+    debugPrintfEvent = addKernelFuncEvent<DebugPrintfEvent>("m5printf");
+    debugPrintfrEvent = addKernelFuncEvent<DebugPrintfrEvent>("m5printfr");
+    dumpMbufEvent = addKernelFuncEvent<DumpMbufEvent>("m5_dump_mbuf");
+#endif
+}
+
+Tru64AlphaSystem::~Tru64AlphaSystem()
+{
+#ifdef DEBUG
+    delete kernelPanicEvent;
+#endif
+    delete badaddrEvent;
+    delete skipPowerStateEvent;
+    delete skipScavengeBootEvent;
+#if TRACING_ON
+    delete printfEvent;
+    delete debugPrintfEvent;
+    delete debugPrintfrEvent;
+    delete dumpMbufEvent;
+#endif
+}
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(Tru64AlphaSystem)
+
+    Param<Tick> boot_cpu_frequency;
+    SimObjectParam<MemoryController *> memctrl;
+    SimObjectParam<PhysicalMemory *> physmem;
+
+    Param<string> kernel;
+    Param<string> console;
+    Param<string> pal;
+
+    Param<string> boot_osflags;
+    Param<string> readfile;
+    Param<unsigned int> init_param;
+
+    Param<uint64_t> system_type;
+    Param<uint64_t> system_rev;
+
+    Param<bool> bin;
+    VectorParam<string> binned_fns;
+
+END_DECLARE_SIM_OBJECT_PARAMS(Tru64AlphaSystem)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(Tru64AlphaSystem)
+
+    INIT_PARAM(boot_cpu_frequency, "frequency of the boot cpu"),
+    INIT_PARAM(memctrl, "memory controller"),
+    INIT_PARAM(physmem, "phsyical memory"),
+    INIT_PARAM(kernel, "file that contains the kernel code"),
+    INIT_PARAM(console, "file that contains the console code"),
+    INIT_PARAM(pal, "file that contains palcode"),
+    INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
+                    "a"),
+    INIT_PARAM_DFLT(readfile, "file to read startup script from", ""),
+    INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
+    INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 12),
+    INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 2<<1),
+    INIT_PARAM_DFLT(bin, "is this system to be binned", false),
+    INIT_PARAM(binned_fns, "functions to be broken down and binned")
+
+END_INIT_SIM_OBJECT_PARAMS(Tru64AlphaSystem)
+
+CREATE_SIM_OBJECT(Tru64AlphaSystem)
+{
+    AlphaSystem::Params *p = new AlphaSystem::Params;
+    p->name = getInstanceName();
+    p->boot_cpu_frequency = boot_cpu_frequency;
+    p->memctrl = memctrl;
+    p->physmem = physmem;
+    p->kernel_path = kernel;
+    p->console_path = console;
+    p->palcode = pal;
+    p->boot_osflags = boot_osflags;
+    p->init_param = init_param;
+    p->readfile = readfile;
+    p->system_type = system_type;
+    p->system_rev = system_rev;
+    p->bin = bin;
+    p->binned_fns = binned_fns;
+    p->bin_int = false;
+
+    return new Tru64AlphaSystem(p);
+}
+
+REGISTER_SIM_OBJECT("Tru64AlphaSystem", Tru64AlphaSystem)
diff --git a/arch/alpha/tru64/system.hh b/arch/alpha/tru64/system.hh
new file mode 100644
index 000000000..0e0cc1bc8
--- /dev/null
+++ b/arch/alpha/tru64/system.hh
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2003-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ARCH_ALPHA_TRU64_SYSTEM_HH__
+#define __ARCH_ALPHA_TRU64_SYSTEM_HH__
+
+#include "arch/alpha/system.hh"
+#include "arch/isa_traits.hh"
+#include "sim/system.hh"
+
+class ExecContext;
+
+class BreakPCEvent;
+class BadAddrEvent;
+class SkipFuncEvent;
+class PrintfEvent;
+class DebugPrintfEvent;
+class DebugPrintfrEvent;
+class DumpMbufEvent;
+class AlphaArguments;
+
+class Tru64AlphaSystem : public AlphaSystem
+{
+  private:
+#ifdef DEBUG
+    /** Event to halt the simulator if the kernel calls panic()  */
+    BreakPCEvent *kernelPanicEvent;
+#endif
+
+    BadAddrEvent *badaddrEvent;
+    SkipFuncEvent *skipPowerStateEvent;
+    SkipFuncEvent *skipScavengeBootEvent;
+    PrintfEvent *printfEvent;
+    DebugPrintfEvent  *debugPrintfEvent;
+    DebugPrintfrEvent *debugPrintfrEvent;
+    DumpMbufEvent *dumpMbufEvent;
+
+  public:
+    Tru64AlphaSystem(Params *p);
+    ~Tru64AlphaSystem();
+
+    static void Printf(AlphaArguments args);
+    static void DumpMbuf(AlphaArguments args);
+};
+
+#endif // __ARCH_ALPHA_TRU64_SYSTEM_HH__