diff options
Diffstat (limited to 'configs/example/arm/fs_bigLITTLE.py')
| -rw-r--r-- | configs/example/arm/fs_bigLITTLE.py | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/configs/example/arm/fs_bigLITTLE.py b/configs/example/arm/fs_bigLITTLE.py index 489bc53b7..7e0555c00 100644 --- a/configs/example/arm/fs_bigLITTLE.py +++ b/configs/example/arm/fs_bigLITTLE.py @@ -57,7 +57,6 @@ import devices from devices import AtomicCluster, KvmCluster -default_dtb = 'armv8_gem5_v1_big_little_2_2.dtb' default_kernel = 'vmlinux4.3.aarch64' default_disk = 'aarch64-ubuntu-trusty-headless.img' default_rcs = 'bootscript.rcS' @@ -153,7 +152,7 @@ if devices.have_kvm: def addOptions(parser): parser.add_argument("--restore-from", type=str, default=None, help="Restore from checkpoint") - parser.add_argument("--dtb", type=str, default=default_dtb, + parser.add_argument("--dtb", type=str, default=None, help="DTB file to load") parser.add_argument("--kernel", type=str, default=default_kernel, help="Linux kernel") @@ -249,7 +248,19 @@ def build(options): _build_kvm(system, all_cpus) # Linux device tree - system.dtb_filename = SysPaths.binary(options.dtb) + if options.dtb is not None: + system.dtb_filename = SysPaths.binary(options.dtb) + else: + def create_dtb_for_system(system, filename): + state = FdtState(addr_cells=2, size_cells=2, cpu_cells=1) + rootNode = system.generateDeviceTree(state) + + fdt = Fdt() + fdt.add_rootnode(rootNode) + dtb_filename = os.path.join(m5.options.outdir, filename) + return fdt.writeDtbFile(dtb_filename) + + system.dtb_filename = create_dtb_for_system(system, 'system.dtb') return root |