-static void smp_parse(QemuOpts *opts)
-{
- if (opts) {
- unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
- unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
- unsigned cores = qemu_opt_get_number(opts, "cores", 0);
- unsigned threads = qemu_opt_get_number(opts, "threads", 0);
-
- /* compute missing values, prefer sockets over cores over threads */
- if (cpus == 0 || sockets == 0) {
- cores = cores > 0 ? cores : 1;
- threads = threads > 0 ? threads : 1;
- if (cpus == 0) {
- sockets = sockets > 0 ? sockets : 1;
- cpus = cores * threads * sockets;
- } else {
- max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
- sockets = max_cpus / (cores * threads);
- }
- } else if (cores == 0) {
- threads = threads > 0 ? threads : 1;
- cores = cpus / (sockets * threads);
- cores = cores > 0 ? cores : 1;
- } else if (threads == 0) {
- threads = cpus / (cores * sockets);
- threads = threads > 0 ? threads : 1;
- } else if (sockets * cores * threads < cpus) {
- error_report("cpu topology: "
- "sockets (%u) * cores (%u) * threads (%u) < "
- "smp_cpus (%u)",
- sockets, cores, threads, cpus);
- exit(1);
- }
-
- max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
-
- if (max_cpus < cpus) {
- error_report("maxcpus must be equal to or greater than smp");
- exit(1);
- }
-
- if (sockets * cores * threads > max_cpus) {
- error_report("cpu topology: "
- "sockets (%u) * cores (%u) * threads (%u) > "
- "maxcpus (%u)",
- sockets, cores, threads, max_cpus);
- exit(1);
- }
-
- if (sockets * cores * threads != max_cpus) {
- warn_report("Invalid CPU topology deprecated: "
- "sockets (%u) * cores (%u) * threads (%u) "
- "!= maxcpus (%u)",
- sockets, cores, threads, max_cpus);
- }
-
- smp_cpus = cpus;
- smp_cores = cores;
- smp_threads = threads;
- }
-
- if (smp_cpus > 1) {
- Error *blocker = NULL;
- error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
- replay_add_blocker(blocker);
- }
-}
-