This patch add the private API (virDomainVcpupinDel). This API can delete the vcpupin setting of a specified virtual cpu. Signed-off-by: Taku Izumi <izumi.taku(a)jp.fujitsu.com&gt; --- src/conf/domain_conf.c | 39 +++++++++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 2 ++ src/libvirt_private.syms | 1 + 3 files changed, 42 insertions(+) Index: libvirt/src/conf/domain_conf.c =================================================================== --- libvirt.orig/src/conf/domain_conf.c +++ libvirt/src/conf/domain_conf.c @@ -8126,6 +8126,45 @@ cleanup: return -1; } +int +virDomainVcpupinDel(virDomainDefPtr def, int vcpu) +{ + int n; + bool deleted = false; + virDomainVcpupinDefPtr *vcpupin_list = def->cputune.vcpupin; + + /* No vcpupin exists yet */ + if (!def->cputune.nvcpupin) { + return 0; + } + + for (n = 0; n < def->cputune.nvcpupin; n++) { + if (vcpupin_list[n]->vcpuid == vcpu) { + VIR_FREE(vcpupin_list[n]->cpumask); + VIR_FREE(vcpupin_list[n]); + memmove(&vcpupin_list[n], + &vcpupin_list[n+1], + (def->cputune.nvcpupin - n - 1) * sizeof(virDomainVcpupinDef *)); + deleted = true; + break; + } + } + + if (!deleted) + return 0; + + if (--def->cputune.nvcpupin == 0) { + virDomainVcpupinDefFree(def->cputune.vcpupin, 0); + } else { + if (VIR_REALLOC_N(def->cputune.vcpupin, def->cputune.nvcpupin) < 0) { + virReportOOMError(); + return -1; + } + } + + return 0; +} + static int virDomainLifecycleDefFormat(virBufferPtr buf, int type, Index: libvirt/src/conf/domain_conf.h =================================================================== --- libvirt.orig/src/conf/domain_conf.h +++ libvirt/src/conf/domain_conf.h @@ -1381,6 +1381,8 @@ int virDomainVcpupinAdd(virDomainDefPtr int maplen, int vcpu); +int virDomainVcpupinDel(virDomainDefPtr def, int vcpu); + int virDomainDiskIndexByName(virDomainDefPtr def, const char *name); int virDomainDiskInsert(virDomainDefPtr def, virDomainDiskDefPtr disk); Index: libvirt/src/libvirt_private.syms =================================================================== --- libvirt.orig/src/libvirt_private.syms +++ libvirt/src/libvirt_private.syms @@ -360,6 +360,7 @@ virDomainTimerTickpolicyTypeToString; virDomainTimerTrackTypeFromString; virDomainTimerTrackTypeToString; virDomainVcpupinAdd; +virDomainVcpupinDel; virDomainVcpupinFindByVcpu; virDomainVcpupinIsDuplicate; virDomainVideoDefFree;