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authorAndreas Sandberg <Andreas.Sandberg@ARM.com>2013-04-22 13:20:32 -0400
committerAndreas Sandberg <Andreas.Sandberg@ARM.com>2013-04-22 13:20:32 -0400
commit7865d6e8386c3b2ff509347991ec8961ae2a5b96 (patch)
tree49448d96334038a7236e9e7300121835d1228055 /configs/example
parent2607efded8ea856d632f017e93b40f1780046db1 (diff)
downloadgem5-7865d6e8386c3b2ff509347991ec8961ae2a5b96.tar.xz
config: Add a KVM VM to systems with KVM CPUs
KVM-based CPUs need a KVM VM object in the system to manage system-global KVM stuff (VM creation, interrupt delivery, memory managment, etc.). This changeset adds a VM to the system if KVM has been enabled at compile time (the BaseKvmCPU object exists) and a KVM-based CPU has been selected at runtime.
Diffstat (limited to 'configs/example')
-rw-r--r--configs/example/fs.py13
1 files changed, 13 insertions, 0 deletions
diff --git a/configs/example/fs.py b/configs/example/fs.py
index 73b0acbfb..1f8e2d3a7 100644
--- a/configs/example/fs.py
+++ b/configs/example/fs.py
@@ -71,6 +71,13 @@ if args:
DriveCPUClass = AtomicSimpleCPU
drive_mem_mode = 'atomic'
+# Check if KVM support has been enabled, we might need to do VM
+# configuration if that's the case.
+have_kvm_support = 'BaseKvmCPU' in globals()
+def is_kvm_cpu(cpu_class):
+ return have_kvm_support and cpu_class != None and \
+ issubclass(cpu_class, BaseKvmCPU)
+
# system under test can be any CPU
(TestCPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
@@ -116,6 +123,9 @@ test_sys.init_param = options.init_param
test_sys.cpu = [TestCPUClass(cpu_id=i) for i in xrange(np)]
+if is_kvm_cpu(TestCPUClass) or is_kvm_cpu(FutureClass):
+ test_sys.vm = KvmVM()
+
if options.caches or options.l2cache:
test_sys.iocache = IOCache(clock = '1GHz',
addr_ranges = test_sys.mem_ranges)
@@ -163,6 +173,9 @@ if len(bm) == 2:
if options.kernel is not None:
drive_sys.kernel = binary(options.kernel)
+ if is_kvm_cpu(DriveCPUClass):
+ drive_sys.vm = KvmVM()
+
drive_sys.iobridge = Bridge(delay='50ns',
ranges = drive_sys.mem_ranges)
drive_sys.iobridge.slave = drive_sys.iobus.master