On Tue, Jul 10, 2012 at 05:17:08PM +0800, tangchen wrote:
Introduce 2 APIs to support hypervisor threads pin. 1) virDomainHypervisorPinAdd: setup hypervisor threads pin with a given cpumap string. 2) virDomainHypervisorPinDel: remove all hypervisor threads pin.
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> --- src/conf/domain_conf.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 6 ++++ src/libvirt_private.syms | 2 ++ 3 files changed, 84 insertions(+)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 376c1b5..9bd144a 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -10947,6 +10947,82 @@ virDomainVcpuPinDel(virDomainDefPtr def, int vcpu) return 0; }
+int +virDomainHypervisorPinAdd(virDomainDefPtr def, + unsigned char *cpumap, + int maplen) +{ + virDomainVcpuPinDefPtr hypervisorpin = NULL; + char *cpumask = NULL; + int i; + + if (VIR_ALLOC_N(cpumask, VIR_DOMAIN_CPUMASK_LEN) < 0) { + virReportOOMError(); + goto cleanup; + } + + /* Reset cpumask to all 0s. */ + for (i = 0; i < VIR_DOMAIN_CPUMASK_LEN; i++) + cpumask[i] = 0;
No need to do this again, VIR_ALLOC_N has already filled them with zeros. -- Thanks, Hu Tao