[libvirt] [PATCH 26/34] conf: turn def->vcpus into a structure
To allow collecting all relevant data at one place let's make def->vcpus
a structure and then we can start moving stuff into it.
---
src/conf/domain_conf.c | 55 ++++++++++++++++++++++++++++++++++++++++++++------
src/conf/domain_conf.h | 10 ++++++++-
2 files changed, 58 insertions(+), 7 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 897b643..631e1db 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1424,20 +1424,38 @@ void virDomainLeaseDefFree(virDomainLeaseDefPtr def)
}
+static void
+virDomainVCpuInfoClear(virDomainVCpuInfoPtr info)
+{
+ if (!info)
+ return;
+}
+
+
int
virDomainDefSetVCpusMax(virDomainDefPtr def,
unsigned int vcpus)
{
+ size_t i;
+
+ if (def->maxvcpus == vcpus)
+ return 0;
+
if (vcpus == 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("domain config can't have 0 maximum vCPUs"));
return -1;
}
- if (vcpus < def->vcpus)
- virDomainDefSetVCpus(def, vcpus);
+ if (def->maxvcpus < vcpus) {
+ if (VIR_EXPAND_N(def->vcpus, def->maxvcpus, vcpus - def->maxvcpus) <
0)
+ return -1;
+ } else {
+ for (i = vcpus; i < def->maxvcpus; i++)
+ virDomainVCpuInfoClear(&def->vcpus[i]);
- def->maxvcpus = vcpus;
+ VIR_SHRINK_N(def->vcpus, def->maxvcpus, def->maxvcpus - vcpus);
+ }
return 0;
}
@@ -1446,7 +1464,14 @@ virDomainDefSetVCpusMax(virDomainDefPtr def,
bool
virDomainDefHasVCpusOffline(const virDomainDef *def)
{
- return def->vcpus < def->maxvcpus;
+ size_t i;
+
+ for (i = 0; i < def->maxvcpus; i++) {
+ if (!def->vcpus[i].online)
+ return true;
+ }
+
+ return false;
}
@@ -1461,6 +1486,8 @@ int
virDomainDefSetVCpus(virDomainDefPtr def,
unsigned int vcpus)
{
+ size_t i;
+
if (vcpus > def->maxvcpus) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("maxvcpus must not be less than current vcpus (%u <
%zu)"),
@@ -1468,7 +1495,11 @@ virDomainDefSetVCpus(virDomainDefPtr def,
return -1;
}
- def->vcpus = vcpus;
+ for (i = 0; i < vcpus; i++)
+ def->vcpus[i].online = true;
+
+ for (i = vcpus; i < def->maxvcpus; i++)
+ def->vcpus[i].online = false;
return 0;
}
@@ -1477,7 +1508,15 @@ virDomainDefSetVCpus(virDomainDefPtr def,
unsigned int
virDomainDefGetVCpus(const virDomainDef *def)
{
- return def->vcpus;
+ size_t i;
+ unsigned int ret = 0;
+
+ for (i = 0; i < def->maxvcpus; i++) {
+ if (def->vcpus[i].online)
+ ret++;
+ }
+
+ return ret;
}
@@ -2505,6 +2544,10 @@ void virDomainDefFree(virDomainDefPtr def)
virDomainResourceDefFree(def->resource);
+ for (i = 0; i < def->maxvcpus; i++)
+ virDomainVCpuInfoClear(&def->vcpus[i]);
+ VIR_FREE(def->vcpus);
+
/* hostdevs must be freed before nets (or any future "intelligent
* hostdevs") because the pointer to the hostdev is really
* pointing into the middle of the higher level device's object,
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 3490f02..68f82c6 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2129,6 +2129,14 @@ struct _virDomainCputune {
virDomainThreadSchedParamPtr iothreadsched;
};
+
+typedef struct _virDomainVCpuInfo virDomainVCpuInfo;
+typedef virDomainVCpuInfo *virDomainVCpuInfoPtr;
+
+struct _virDomainVCpuInfo {
+ bool online;
+};
+
typedef struct _virDomainBlkiotune virDomainBlkiotune;
typedef virDomainBlkiotune *virDomainBlkiotunePtr;
@@ -2202,7 +2210,7 @@ struct _virDomainDef {
virDomainBlkiotune blkio;
virDomainMemtune mem;
- unsigned int vcpus;
+ virDomainVCpuInfoPtr vcpus;
size_t maxvcpus;
int placement_mode;
virBitmapPtr cpumask;
--
2.6.2