kvm, arm: Move ARM-specific files to arch/arm/kvm/

This changeset moves the ARM-specific KVM CPU implementation to
arch/arm/kvm/. This change is expected to keep the source tree
somewhat cleaner as we start adding support for ARMv8 and KVM
in-kernel interrupt controller simulation.

--HG--
rename : src/cpu/kvm/ArmKvmCPU.py => src/arch/arm/kvm/ArmKvmCPU.py
rename : src/cpu/kvm/arm_cpu.cc => src/arch/arm/kvm/arm_cpu.cc
rename : src/cpu/kvm/arm_cpu.hh => src/arch/arm/kvm/arm_cpu.hh

src/arch/arm/kvm/ArmKvmCPU.py

@@ -40,4 +40,4 @@ from BaseKvmCPU import BaseKvmCPU
 
 class ArmKvmCPU(BaseKvmCPU):
     type = 'ArmKvmCPU'
-    cxx_header = "cpu/kvm/arm_cpu.hh"
+    cxx_header = "arch/arm/kvm/arm_cpu.hh"

src/arch/arm/kvm/SConscript

@@ -0,0 +1,50 @@
+# -*- mode:python -*-
+
+# Copyright (c) 2015 ARM Limited
+# All rights reserved.
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# to a hardware implementation of the functionality of the software
+# licensed hereunder.  You may use the software subject to the license
+# terms below provided that you ensure that this notice is replicated
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
+# 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.
+#
+# Authors: Andreas Sandberg
+
+Import('*')
+
+if not (env['USE_KVM'] and env['TARGET_ISA'] == 'arm'):
+    Return()
+
+import platform
+host_isa = platform.machine()
+
+if host_isa == "armv7l":
+    SimObject('ArmKvmCPU.py')
+    Source('arm_cpu.cc')

src/arch/arm/kvm/arm_cpu.cc

@@ -37,6 +37,8 @@
  * Authors: Andreas Sandberg
  */
 
+#include "arch/arm/kvm/arm_cpu.hh"
+
 #include <linux/kvm.h>
 
 #include <algorithm>
@@ -44,7 +46,6 @@
 #include <memory>
 
 #include "arch/registers.hh"
-#include "cpu/kvm/arm_cpu.hh"
 #include "cpu/kvm/base.hh"
 #include "debug/Kvm.hh"
 #include "debug/KvmContext.hh"

src/arch/arm/kvm/arm_cpu.hh

@@ -37,8 +37,8 @@
  * Authors: Andreas Sandberg
  */
 
-#ifndef __CPU_KVM_ARM_CPU_HH__
-#define __CPU_KVM_ARM_CPU_HH__
+#ifndef __ARCH_ARM_KVM_ARM_CPU_HH__
+#define __ARCH_ARM_KVM_ARM_CPU_HH__
 
 #include <set>
 #include <vector>
@@ -167,4 +167,4 @@ class ArmKvmCPU : public BaseKvmCPU
     static const std::set<uint64_t> invariant_regs;
 };
 
-#endif
+#endif // __ARCH_ARM_KVM_ARM_CPU_HH__

src/cpu/kvm/SConscript

@@ -48,10 +48,7 @@ if env['USE_KVM']:
     Source('perfevent.cc')
     Source('timer.cc')
 
-    if env['TARGET_ISA'] == 'arm':
-        SimObject('ArmKvmCPU.py')
-        Source('arm_cpu.cc')
-    elif env['TARGET_ISA'] == 'x86':
+    if env['TARGET_ISA'] == 'x86':
         SimObject('X86KvmCPU.py')
         Source('x86_cpu.cc')