config: Move KVM CPU checking to CpuConfig helper module

Both se.py and fs.py need to check if a CPU is a KVM CPU. This is
somewhat involved since CPUs can be disabled at compile time. Enable
better code reuse by moving it to the CpuConfig module.

Change-Id: I47b1512ecb62e757399a407a0e41be83b9f83be3
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/12418
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>

1 files changed, 1 insertions, 8 deletions

diff --git a/configs/example/se.py b/configs/example/se.py
index 99d79bc57..015a953da 100644
--- a/configs/example/se.py
+++ b/configs/example/se.py
@@ -65,13 +65,6 @@ from common import MemConfig
 from common.Caches import *
 from common.cpu2000 import *
 
-# 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)
-
 def get_processes(options):
     """Interprets provided options and returns a list of processes"""
 
@@ -210,7 +203,7 @@ if options.elastic_trace_en:
 for cpu in system.cpu:
     cpu.clk_domain = system.cpu_clk_domain
 
-if is_kvm_cpu(CPUClass) or is_kvm_cpu(FutureClass):
+if CpuConfig.is_kvm_cpu(CPUClass) or CpuConfig.is_kvm_cpu(FutureClass):
     if buildEnv['TARGET_ISA'] == 'x86':
         system.kvm_vm = KvmVM()
         for process in multiprocesses: