3rd-party/linux-kernel-module-cheat
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gem5: document that arm v4.18 kernel boot was fixed

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Fixed by gem5 commit 33b311d8d8b8d527d500d62a35b50be63e41b556

Automatically pass parnic_on_panic for archs that support it.
This commit is contained in:
Ciro Santilli 六四事件 法轮功
2018-10-28 00:00:01 +00:00
parent ceb64ab8e1
commit 11fedc6045
3 changed files with 28 additions and 49 deletions
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21
run
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@@ -145,26 +145,27 @@ def main(args, extra_args=None):
cpt_dirs = common.gem_list_checkpoint_dirs()
cpt_dir = cpt_dirs[-args.gem5_restore]
extra_emulator_args.extend(['-r', str(sorted(cpt_dirs).index(cpt_dir) + 1)])
cmd += [
cmd.extend([
common.gem5_fs_file,
'--disk-image', common.disk_image,
'--kernel', common.image,
'--mem-size', memory,
'--num-cpus', str(args.cpus),
'--script', common.gem5_readfile,
]
])
if args.arch == 'x86_64':
if args.kvm:
cmd += ['--cpu-type', 'X86KvmCPU']
cmd += ['--command-line', 'earlyprintk=ttyS0 console=ttyS0 lpj=7999923 root=/dev/sda {}'.format(kernel_cli)]
cmd.extend(['--cpu-type', 'X86KvmCPU'])
cmd.extend(['--command-line', 'earlyprintk=ttyS0 console=ttyS0 lpj=7999923 root=/dev/sda {}'.format(kernel_cli)])
elif args.arch == 'arm' or args.arch == 'aarch64':
# TODO why is it mandatory to pass mem= here? Not true for QEMU.
# Anything smaller than physical blows up as expected, but why can't it auto-detect the right value?
cmd += [
cmd.extend([
'--command-line', 'earlyprintk=pl011,0x1c090000 console=ttyAMA0 lpj=19988480 rw loglevel=8 mem={} root=/dev/sda {}'.format(memory, kernel_cli),
'--dtb-filename', os.path.join(common.gem5_system_dir, 'arm', 'dt', 'armv{}_gem5_v1_{}cpu.dtb'.format(common.armv, args.cpus)),
'--machine-type', common.machine,
]
'--param', 'system.panic_on_panic = True',
])
if not args.baremetal is None:
cmd.append('--bare-metal')
if args.arch == 'aarch64':
@@ -175,7 +176,7 @@ def main(args, extra_args=None):
if args.gem5_restore is not None:
cpt_dir = common.gem_list_checkpoint_dirs()[-args.gem5_restore]
extra_emulator_args.extend(['--restore-from', os.path.join(common.m5out_dir, cpt_dir)])
cmd += [
cmd.extend([
os.path.join(common.gem5_src_dir, 'configs', 'example', 'arm', 'fs_bigLITTLE.py'),
'--big-cpus', '2',
'--cpu-type', 'atomic',
@@ -183,13 +184,13 @@ def main(args, extra_args=None):
'--dtb', os.path.join(common.gem5_system_dir, 'arm', 'dt', 'armv8_gem5_v1_big_little_2_2.dtb'),
'--kernel', common.image,
'--little-cpus', '2'
]
])
elif args.gem5_script == 'se':
assert(args.exec_image is not None)
cmd += [common.gem5_se_file, '-c', args.exec_image]
cmd.extend([common.gem5_se_file, '-c', args.exec_image])
if args.debug_guest:
# https://stackoverflow.com/questions/49296092/how-to-make-gem5-wait-for-gdb-to-connect-to-reliably-break-at-start-kernel-of-th
cmd += ['--param', 'system.cpu[0].wait_for_remote_gdb = True']
cmd.extend(['--param', 'system.cpu[0].wait_for_remote_gdb = True'])
else:
if not os.path.exists(common.image):
raise_image_not_found()