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added command line option for running multiple cpus #206

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added command line option for running multiple cpus #206

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10 changes: 9 additions & 1 deletion tools/ew.py
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,9 @@ def qemu_run(platform, machine, processor):
suffix, options = platform_to_qemu_options(platform, machine, processor)
cmd = 'qemu-' + suffix

if cpus:
cmd += ' -smp cpus=' + cpus + ' '

cmdline = cmd
if 'qemu_path' in overrides.keys():
cmdline = overrides['qemu_path'] + cmd
Expand Down Expand Up @@ -418,8 +421,9 @@ def spike_run(platform, machine, processor):

def usage():
print("%s - emulator wrapper for running HelenOS\n" % os.path.basename(sys.argv[0]))
print("%s [-d] [-h] [-net e1k|rtl8139|ne2k|virtio-net] [-hdd ata|virtio-blk] [-nohdd] [-nokvm] [-nonet] [-nosnd] [-nousb] [-noxhci] [-notablet]\n" %
print("%s [$] [-d] [-h] [-net e1k|rtl8139|ne2k|virtio-net] [-hdd ata|virtio-blk] [-nohdd] [-nokvm] [-nonet] [-nosnd] [-nousb] [-noxhci] [-notablet]\n" %
os.path.basename(sys.argv[0]))
print("$\t to run multiple($) cpus")
print("-d\tDry run: do not run the emulation, just print the command line.")
print("-h\tPrint the usage information and exit.")
print("-nohdd\tDisable hard disk, if applicable.")
Expand All @@ -441,6 +445,8 @@ def run():
expect_nic = False
expect_hdd = False
expect_qemu = False
global cpus
cpus = ''

for i in range(1, len(sys.argv)):

Expand Down Expand Up @@ -481,6 +487,8 @@ def run():
elif sys.argv[i] == '-h':
usage()
exit()
elif sys.argv[i].isdigit():
cpus = sys.argv[i]
elif sys.argv[i] == '-d':
overrides['dryrun'] = True
elif sys.argv[i] == '-net' and i < len(sys.argv) - 1:
Expand Down