2  * QEMU Machine core (related to -smp parsing)
23 #include "qemu/error-report.h"
36     if (mc->smp_props.drawers_supported) {  in cpu_hierarchy_to_string()
37         g_string_append_printf(s, "drawers (%u) * ", ms->smp.drawers);  in cpu_hierarchy_to_string()
40     if (mc->smp_props.books_supported) {  in cpu_hierarchy_to_string()
41         g_string_append_printf(s, "books (%u) * ", ms->smp.books);  in cpu_hierarchy_to_string()
44     g_string_append_printf(s, "sockets (%u)", ms->smp.sockets);  in cpu_hierarchy_to_string()
46     if (mc->smp_props.dies_supported) {  in cpu_hierarchy_to_string()
47         g_string_append_printf(s, " * dies (%u)", ms->smp.dies);  in cpu_hierarchy_to_string()
50     if (mc->smp_props.clusters_supported) {  in cpu_hierarchy_to_string()
51         g_string_append_printf(s, " * clusters (%u)", ms->smp.clusters);  in cpu_hierarchy_to_string()
54     if (mc->smp_props.modules_supported) {  in cpu_hierarchy_to_string()
55         g_string_append_printf(s, " * modules (%u)", ms->smp.modules);  in cpu_hierarchy_to_string()
58     g_string_append_printf(s, " * cores (%u)", ms->smp.cores);  in cpu_hierarchy_to_string()
59     g_string_append_printf(s, " * threads (%u)", ms->smp.threads);  in cpu_hierarchy_to_string()
89     unsigned cpus    = config->has_cpus ? config->cpus : 0;  in machine_parse_smp_config()
90     unsigned drawers = config->has_drawers ? config->drawers : 0;  in machine_parse_smp_config()
91     unsigned books   = config->has_books ? config->books : 0;  in machine_parse_smp_config()
92     unsigned sockets = config->has_sockets ? config->sockets : 0;  in machine_parse_smp_config()
93     unsigned dies    = config->has_dies ? config->dies : 0;  in machine_parse_smp_config()
94     unsigned clusters = config->has_clusters ? config->clusters : 0;  in machine_parse_smp_config()
95     unsigned modules = config->has_modules ? config->modules : 0;  in machine_parse_smp_config()
96     unsigned cores   = config->has_cores ? config->cores : 0;  in machine_parse_smp_config()
97     unsigned threads = config->has_threads ? config->threads : 0;  in machine_parse_smp_config()
98     unsigned maxcpus = config->has_maxcpus ? config->maxcpus : 0;  in machine_parse_smp_config()
105     if ((config->has_cpus && config->cpus == 0) ||  in machine_parse_smp_config()
106         (config->has_drawers && config->drawers == 0) ||  in machine_parse_smp_config()
107         (config->has_books && config->books == 0) ||  in machine_parse_smp_config()
108         (config->has_sockets && config->sockets == 0) ||  in machine_parse_smp_config()
109         (config->has_dies && config->dies == 0) ||  in machine_parse_smp_config()
110         (config->has_clusters && config->clusters == 0) ||  in machine_parse_smp_config()
111         (config->has_modules && config->modules == 0) ||  in machine_parse_smp_config()
112         (config->has_cores && config->cores == 0) ||  in machine_parse_smp_config()
113         (config->has_threads && config->threads == 0) ||  in machine_parse_smp_config()
114         (config->has_maxcpus && config->maxcpus == 0)) {  in machine_parse_smp_config()
124     if (!mc->smp_props.modules_supported &&  in machine_parse_smp_config()
125         config->has_modules && config->modules > 1) {  in machine_parse_smp_config()
132     if (!mc->smp_props.clusters_supported &&  in machine_parse_smp_config()
133         config->has_clusters && config->clusters > 1) {  in machine_parse_smp_config()
140     if (!mc->smp_props.dies_supported &&  in machine_parse_smp_config()
141         config->has_dies && config->dies > 1) {  in machine_parse_smp_config()
148     if (!mc->smp_props.books_supported &&  in machine_parse_smp_config()
149         config->has_books && config->books > 1) {  in machine_parse_smp_config()
156     if (!mc->smp_props.drawers_supported &&  in machine_parse_smp_config()
157         config->has_drawers && config->drawers > 1) {  in machine_parse_smp_config()
172         if (mc->smp_props.prefer_sockets) {  in machine_parse_smp_config()
215     ms->smp.cpus = cpus;  in machine_parse_smp_config()
216     ms->smp.drawers = drawers;  in machine_parse_smp_config()
217     ms->smp.books = books;  in machine_parse_smp_config()
218     ms->smp.sockets = sockets;  in machine_parse_smp_config()
219     ms->smp.dies = dies;  in machine_parse_smp_config()
220     ms->smp.clusters = clusters;  in machine_parse_smp_config()
221     ms->smp.modules = modules;  in machine_parse_smp_config()
222     ms->smp.cores = cores;  in machine_parse_smp_config()
223     ms->smp.threads = threads;  in machine_parse_smp_config()
224     ms->smp.max_cpus = maxcpus;  in machine_parse_smp_config()
226     mc->smp_props.has_clusters = config->has_clusters;  in machine_parse_smp_config()
228     /* sanity-check of the computed topology */  in machine_parse_smp_config()
247     if (ms->smp.cpus < mc->min_cpus) {  in machine_parse_smp_config()
250                    ms->smp.cpus,  in machine_parse_smp_config()
251                    mc->name, mc->min_cpus);  in machine_parse_smp_config()
255     if (ms->smp.max_cpus > mc->max_cpus) {  in machine_parse_smp_config()
258                    ms->smp.max_cpus,  in machine_parse_smp_config()
259                    mc->name, mc->max_cpus);  in machine_parse_smp_config()
270     if ((topo == CPU_TOPOLOGY_LEVEL_MODULE && !mc->smp_props.modules_supported) ||  in machine_check_topo_support()
271         (topo == CPU_TOPOLOGY_LEVEL_CLUSTER && !mc->smp_props.clusters_supported) ||  in machine_check_topo_support()
272         (topo == CPU_TOPOLOGY_LEVEL_DIE && !mc->smp_props.dies_supported) ||  in machine_check_topo_support()
273         (topo == CPU_TOPOLOGY_LEVEL_BOOK && !mc->smp_props.books_supported) ||  in machine_check_topo_support()
274         (topo == CPU_TOPOLOGY_LEVEL_DRAWER && !mc->smp_props.drawers_supported)) {  in machine_check_topo_support()
276                    "Invalid topology level: %s. "  in machine_check_topo_support()
277                    "The topology level is not supported by this machine",  in machine_check_topo_support()
294     for (node = caches; node; node = node->next) {  in machine_parse_smp_cache()
296         if (test_bit(node->value->cache, caches_bitmap)) {  in machine_parse_smp_cache()
298                        "Invalid cache properties: %s. "  in machine_parse_smp_cache()
299                        "The cache properties are duplicated",  in machine_parse_smp_cache()
300                        CacheLevelAndType_str(node->value->cache));  in machine_parse_smp_cache()
304         machine_set_cache_topo_level(ms, node->value->cache,  in machine_parse_smp_cache()
305                                      node->value->topology);  in machine_parse_smp_cache()
306         set_bit(node->value->cache, caches_bitmap);  in machine_parse_smp_cache()
310         const SmpCacheProperties *props = &ms->smp_cache.props[i];  in machine_parse_smp_cache()
313          * Reject non "default" topology level if the cache isn't  in machine_parse_smp_cache()
316         if (props->topology != CPU_TOPOLOGY_LEVEL_DEFAULT &&  in machine_parse_smp_cache()
317             !mc->smp_props.cache_supported[props->cache]) {  in machine_parse_smp_cache()
319                        "%s cache topology not supported by this machine",  in machine_parse_smp_cache()
320                        CacheLevelAndType_str(props->cache));  in machine_parse_smp_cache()
324         if (props->topology == CPU_TOPOLOGY_LEVEL_THREAD) {  in machine_parse_smp_cache()
326                        "%s level cache not supported by this machine",  in machine_parse_smp_cache()
327                        CpuTopologyLevel_str(props->topology));  in machine_parse_smp_cache()
331         if (!machine_check_topo_support(ms, props->topology, errp)) {  in machine_parse_smp_cache()
336     mc->smp_props.has_caches = true;  in machine_parse_smp_cache()
342     return ms->smp.cores * ms->smp.modules * ms->smp.clusters * ms->smp.dies;  in machine_topo_get_cores_per_socket()
347     return ms->smp.threads * machine_topo_get_cores_per_socket(ms);  in machine_topo_get_threads_per_socket()
351                                               CacheLevelAndType cache)  in machine_get_cache_topo_level()  argument
353     return ms->smp_cache.props[cache].topology;  in machine_get_cache_topo_level()
356 void machine_set_cache_topo_level(MachineState *ms, CacheLevelAndType cache,  in machine_set_cache_topo_level()  argument
357                                   CpuTopologyLevel level)  in machine_set_cache_topo_level()  argument
359     ms->smp_cache.props[cache].topology = level;  in machine_set_cache_topo_level()
364  * (not default level), is cache1's topology level higher than cache2?
371      * Before comparing, the "default" topology level should be replaced  in smp_cache_topo_cmp()
372      * with the specific level.  in smp_cache_topo_cmp()
374     assert(smp_cache->props[cache1].topology != CPU_TOPOLOGY_LEVEL_DEFAULT);  in smp_cache_topo_cmp()
376     return smp_cache->props[cache1].topology > smp_cache->props[cache2].topology;  in smp_cache_topo_cmp()
380  * Currently, we have no way to expose the arch-specific default cache model
381  * because the cache model is sometimes related to the CPU model (e.g., i386).
383  * We can only check the correctness of the cache topology after the arch loads
384  * the user-configured cache model from MachineState and consumes the special
385  * "default" level by replacing it with the specific level.
389     if (smp_cache_topo_cmp(&ms->smp_cache, CACHE_LEVEL_AND_TYPE_L1D,  in machine_check_smp_cache()
391         smp_cache_topo_cmp(&ms->smp_cache, CACHE_LEVEL_AND_TYPE_L1I,  in machine_check_smp_cache()
394                    "Invalid smp cache topology. "  in machine_check_smp_cache()
395                    "L2 cache topology level shouldn't be lower than L1 cache");  in machine_check_smp_cache()
399     if (smp_cache_topo_cmp(&ms->smp_cache, CACHE_LEVEL_AND_TYPE_L2,  in machine_check_smp_cache()
402                    "Invalid smp cache topology. "  in machine_check_smp_cache()
403                    "L3 cache topology level shouldn't be lower than L2 cache");  in machine_check_smp_cache()