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gem5: make --cpus work in user mode simulation

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Ciro Santilli 六四事件 法轮功
2019-07-18 00:00:00 +00:00
parent afb38d249b
commit 6fe321deed
1 changed files with 7 additions and 2 deletions
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@@ -469,7 +469,12 @@ Extra options to append at the end of the emulator command line.
cmd.extend([
self.env['gem5_se_file'], LF,
'--cmd', self.env['image'], LF,
'--param', 'system.cpu[:].workload[:].release = "{}"'.format(self.env['kernel_version']), LF,
# We have to use cpu[0] here because on multi-cpu workloads,
# cpu[1] and higher use workload as a proxy to cpu[0].workload.
# as can be seen from the config.ini.
# If system.cpu[:].workload[:] were used instead, we would get the error:
# "KeyError: 'workload'"
'--param', 'system.cpu[0].workload[:].release = "{}"'.format(self.env['kernel_version']), LF,
])
if self.env['userland_args'] is not None:
cmd.extend(['--options', self.env['userland_args'], LF])
@@ -486,7 +491,6 @@ Extra options to append at the end of the emulator command line.
'--disk-image', self.env['disk_image'], LF,
'--kernel', self.env['image'], LF,
'--mem-size', memory, LF,
'--num-cpus', str(self.env['cpus']), LF,
'--script', self.env['gem5_readfile_file'], LF,
])
if self.env['arch'] == 'x86_64':
@@ -569,6 +573,7 @@ Extra options to append at the end of the emulator command line.
if self.env['gdb_wait']:
# https://stackoverflow.com/questions/49296092/how-to-make-gem5-wait-for-gdb-to-connect-to-reliably-break-at-start-kernel-of-th
cmd.extend(['--param', 'system.cpu[0].wait_for_remote_gdb = True', LF])
cmd.extend(['--num-cpus', str(self.env['cpus']), LF])
elif self.env['emulator'] == 'qemu':
qemu_user_and_system_options = [
'-trace', 'enable={},file={}'.format(trace_type, self.env['qemu_trace_file']), LF,