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vl.c: Fail gracefully if no machine is found 

machine defaults to find_default_machine(),
then gets overridden via -M and machine_parse().

If no -M is specified and find_default_machine() returns NULL
(when no machine compiled in), exit with an error.

Avoids a segfault when setting machine->max_cpus.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Andreas Färber 2011-11-10 16:35:32 +01:00 committed by Anthony Liguori
parent 0e3b800e71
commit d423675c94
1 changed files with 5 additions and 0 deletions
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5
vl.c
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@ -3089,6 +3089,11 @@ int main(int argc, char **argv, char **envp)
data_dir = CONFIG_QEMU_DATADIR; data_dir = CONFIG_QEMU_DATADIR;
} }
if (machine == NULL) {
fprintf(stderr, "No machine found.\n");
exit(1);
}
/* /*
* Default to max_cpus = smp_cpus, in case the user doesn't * Default to max_cpus = smp_cpus, in case the user doesn't
* specify a max_cpus value. * specify a max_cpus value.