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@xxxxxxxxxxxxxx>
> ---
> 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
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