8:49 a.m.
These APIs will be used by QEMU driver when building the command
line.
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
src/conf/numa_conf.c | 139 +++++++++++++++++++++++++++++++++++++++
src/conf/numa_conf.h | 28 ++++++++
src/libvirt_private.syms | 6 ++
3 files changed, 173 insertions(+)
diff --git a/src/conf/numa_conf.c b/src/conf/numa_conf.c
index bf8442eada..b35e5040fc 100644
--- a/src/conf/numa_conf.c
+++ b/src/conf/numa_conf.c
@@ -1829,3 +1829,142 @@ virDomainNumaFillCPUsInNode(virDomainNumaPtr numa,
return 0;
}
+
+
+bool
+virDomainNumaHasHMAT(const virDomainNuma *numa)
+{
+ size_t i;
+
+ if (!numa)
+ return false;
+
+ if (numa->nlatencies)
+ return true;
+
+ for (i = 0; i < numa->nmem_nodes; i++) {
+ if (numa->mem_nodes[i].ncaches)
+ return true;
+ }
+
+ return false;
+}
+
+
+size_t
+virDomainNumaGetNodeCacheCount(const virDomainNuma *numa,
+ size_t node)
+{
+ if (!numa || node >= numa->nmem_nodes)
+ return 0;
+
+ return numa->mem_nodes[node].ncaches;
+}
+
+
+int
+virDomainNumaGetNodeCache(const virDomainNuma *numa,
+ size_t node,
+ size_t cache,
+ unsigned int *level,
+ unsigned int *size,
+ unsigned int *line,
+ virDomainCacheAssociativity *associativity,
+ virDomainCachePolicy *policy)
+{
+ const virDomainNumaNode *cell;
+
+ if (!numa || node >= numa->nmem_nodes)
+ return -1;
+
+ cell = &numa->mem_nodes[node];
+
+ if (cache >= cell->ncaches)
+ return -1;
+
+ *level = cell->caches[cache].level;
+ *size = cell->caches[cache].size;
+ *line = cell->caches[cache].line;
+ *associativity = cell->caches[cache].associativity;
+ *policy = cell->caches[cache].policy;
+ return 0;
+}
+
+
+ssize_t
+virDomainNumaGetNodeInitiator(const virDomainNuma *numa,
+ size_t node)
+{
+ size_t i;
+ unsigned int maxBandwidth = 0;
+ ssize_t candidateBandwidth = -1;
+ unsigned int minLatency = UINT_MAX;
+ ssize_t candidateLatency = -1;
+
+ if (!numa || node >= numa->nmem_nodes)
+ return -1;
+
+ for (i = 0; i < numa->nlatencies; i++) {
+ const virDomainNumaLatency *l = &numa->latencies[i];
+
+ if (l->target != node)
+ continue;
+
+ switch (l->type) {
+ case VIR_DOMAIN_NUMA_LATENCY_TYPE_LATENCY:
+ if (l->value < minLatency) {
+ minLatency = l->value;
+ candidateLatency = l->initiator;
+ }
+ break;
+
+ case VIR_DOMAIN_NUMA_LATENCY_TYPE_BANDWIDTH:
+ if (l->value > maxBandwidth) {
+ maxBandwidth = l->value;
+ candidateBandwidth = l->initiator;
+ }
+ break;
+ }
+ }
+
+ if (candidateLatency >= 0)
+ return candidateLatency;
+
+ return candidateBandwidth;
+}
+
+
+size_t
+virDomainNumaGetLatenciesCount(const virDomainNuma *numa)
+{
+ if (!numa)
+ return 0;
+
+ return numa->nlatencies;
+}
+
+
+int
+virDomainNumaGetLatency(const virDomainNuma *numa,
+ size_t i,
+ virDomainNumaLatencyType *type,
+ unsigned int *initiator,
+ unsigned int *target,
+ unsigned int *cache,
+ virDomainMemoryLatency *accessType,
+ unsigned long *value)
+{
+ const virDomainNumaLatency *l;
+
+ if (!numa || i >= numa->nlatencies)
+ return -1;
+
+ l = &numa->latencies[i];
+ *type = l->type;
+ *initiator = l->initiator;
+ *target = l->target;
+ *cache = l->cache;
+ *accessType = l->accessType;
+ *value = l->value;
+ return 0;
+}
diff --git a/src/conf/numa_conf.h b/src/conf/numa_conf.h
index 6d6e9de551..b150fe4037 100644
--- a/src/conf/numa_conf.h
+++ b/src/conf/numa_conf.h
@@ -222,3 +222,31 @@ unsigned int virDomainNumaGetCPUCountTotal(virDomainNumaPtr numa);
int virDomainNumaFillCPUsInNode(virDomainNumaPtr numa, size_t node,
unsigned int maxCpus);
+
+bool virDomainNumaHasHMAT(const virDomainNuma *numa);
+
+size_t virDomainNumaGetNodeCacheCount(const virDomainNuma *numa,
+ size_t node);
+
+int virDomainNumaGetNodeCache(const virDomainNuma *numa,
+ size_t node,
+ size_t cache,
+ unsigned int *level,
+ unsigned int *size,
+ unsigned int *line,
+ virDomainCacheAssociativity *associativity,
+ virDomainCachePolicy *policy);
+
+ssize_t virDomainNumaGetNodeInitiator(const virDomainNuma *numa,
+ size_t node);
+
+size_t virDomainNumaGetLatenciesCount(const virDomainNuma *numa);
+
+int virDomainNumaGetLatency(const virDomainNuma *numa,
+ size_t i,
+ virDomainNumaLatencyType *type,
+ unsigned int *initiator,
+ unsigned int *target,
+ unsigned int *cache,
+ virDomainMemoryLatency *accessType,
+ unsigned long *value);
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 65fe1c7f47..41e61e9b4d 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -843,14 +843,20 @@ virDomainNumaEquals;
virDomainNumaFillCPUsInNode;
virDomainNumaFree;
virDomainNumaGetCPUCountTotal;
+virDomainNumaGetLatenciesCount;
+virDomainNumaGetLatency;
virDomainNumaGetMaxCPUID;
virDomainNumaGetMemorySize;
+virDomainNumaGetNodeCache;
+virDomainNumaGetNodeCacheCount;
virDomainNumaGetNodeCount;
virDomainNumaGetNodeCpumask;
virDomainNumaGetNodeDiscard;
virDomainNumaGetNodeDistance;
+virDomainNumaGetNodeInitiator;
virDomainNumaGetNodeMemoryAccessMode;
virDomainNumaGetNodeMemorySize;
+virDomainNumaHasHMAT;
virDomainNumaNew;
virDomainNumaNodeDistanceIsUsingDefaults;
virDomainNumaNodesDistancesAreBeingSet;
--
2.26.2