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Diffstat (limited to 'hw/core/machine-smp.c')
-rw-r--r--hw/core/machine-smp.c41
1 files changed, 34 insertions, 7 deletions
diff --git a/hw/core/machine-smp.c b/hw/core/machine-smp.c
index 27864c9..2b93fa9 100644
--- a/hw/core/machine-smp.c
+++ b/hw/core/machine-smp.c
@@ -51,6 +51,10 @@ static char *cpu_hierarchy_to_string(MachineState *ms)
g_string_append_printf(s, " * clusters (%u)", ms->smp.clusters);
}
+ if (mc->smp_props.modules_supported) {
+ g_string_append_printf(s, " * modules (%u)", ms->smp.modules);
+ }
+
g_string_append_printf(s, " * cores (%u)", ms->smp.cores);
g_string_append_printf(s, " * threads (%u)", ms->smp.threads);
@@ -88,6 +92,7 @@ void machine_parse_smp_config(MachineState *ms,
unsigned sockets = config->has_sockets ? config->sockets : 0;
unsigned dies = config->has_dies ? config->dies : 0;
unsigned clusters = config->has_clusters ? config->clusters : 0;
+ unsigned modules = config->has_modules ? config->modules : 0;
unsigned cores = config->has_cores ? config->cores : 0;
unsigned threads = config->has_threads ? config->threads : 0;
unsigned maxcpus = config->has_maxcpus ? config->maxcpus : 0;
@@ -103,6 +108,7 @@ void machine_parse_smp_config(MachineState *ms,
(config->has_sockets && config->sockets == 0) ||
(config->has_dies && config->dies == 0) ||
(config->has_clusters && config->clusters == 0) ||
+ (config->has_modules && config->modules == 0) ||
(config->has_cores && config->cores == 0) ||
(config->has_threads && config->threads == 0) ||
(config->has_maxcpus && config->maxcpus == 0)) {
@@ -115,6 +121,20 @@ void machine_parse_smp_config(MachineState *ms,
* If not supported by the machine, a topology parameter must be
* omitted.
*/
+ if (!mc->smp_props.modules_supported && config->has_modules) {
+ if (config->modules > 1) {
+ error_setg(errp, "modules not supported by this "
+ "machine's CPU topology");
+ return;
+ } else {
+ /* Here modules only equals 1 since we've checked zero case. */
+ warn_report("Deprecated CPU topology (considered invalid): "
+ "Unsupported modules parameter mustn't be "
+ "specified as 1");
+ }
+ }
+ modules = modules > 0 ? modules : 1;
+
if (!mc->smp_props.clusters_supported && config->has_clusters) {
if (config->clusters > 1) {
error_setg(errp, "clusters not supported by this "
@@ -185,11 +205,13 @@ void machine_parse_smp_config(MachineState *ms,
cores = cores > 0 ? cores : 1;
threads = threads > 0 ? threads : 1;
sockets = maxcpus /
- (drawers * books * dies * clusters * cores * threads);
+ (drawers * books * dies * clusters *
+ modules * cores * threads);
} else if (cores == 0) {
threads = threads > 0 ? threads : 1;
cores = maxcpus /
- (drawers * books * sockets * dies * clusters * threads);
+ (drawers * books * sockets * dies *
+ clusters * modules * threads);
}
} else {
/* prefer cores over sockets since 6.2 */
@@ -197,22 +219,26 @@ void machine_parse_smp_config(MachineState *ms,
sockets = sockets > 0 ? sockets : 1;
threads = threads > 0 ? threads : 1;
cores = maxcpus /
- (drawers * books * sockets * dies * clusters * threads);
+ (drawers * books * sockets * dies *
+ clusters * modules * threads);
} else if (sockets == 0) {
threads = threads > 0 ? threads : 1;
sockets = maxcpus /
- (drawers * books * dies * clusters * cores * threads);
+ (drawers * books * dies * clusters *
+ modules * cores * threads);
}
}
/* try to calculate omitted threads at last */
if (threads == 0) {
threads = maxcpus /
- (drawers * books * sockets * dies * clusters * cores);
+ (drawers * books * sockets * dies *
+ clusters * modules * cores);
}
}
- total_cpus = drawers * books * sockets * dies * clusters * cores * threads;
+ total_cpus = drawers * books * sockets * dies *
+ clusters * modules * cores * threads;
maxcpus = maxcpus > 0 ? maxcpus : total_cpus;
cpus = cpus > 0 ? cpus : maxcpus;
@@ -222,6 +248,7 @@ void machine_parse_smp_config(MachineState *ms,
ms->smp.sockets = sockets;
ms->smp.dies = dies;
ms->smp.clusters = clusters;
+ ms->smp.modules = modules;
ms->smp.cores = cores;
ms->smp.threads = threads;
ms->smp.max_cpus = maxcpus;
@@ -266,7 +293,7 @@ void machine_parse_smp_config(MachineState *ms,
unsigned int machine_topo_get_cores_per_socket(const MachineState *ms)
{
- return ms->smp.cores * ms->smp.clusters * ms->smp.dies;
+ return ms->smp.cores * ms->smp.modules * ms->smp.clusters * ms->smp.dies;
}
unsigned int machine_topo_get_threads_per_socket(const MachineState *ms)