[libvirt] [PATCH 7/8] cputune: support cputune for xend driver

[Daniel Veillard]

On Tue, Mar 29, 2011 at 02:32:25PM +0800, Osier Yang wrote:
> Not sure if it's the correct way to add cputune xml for xend driver,
> and besides, seems "xm driver" and "xen hypervisor" also support
> vcpu affinity, do we need to add support for them too?
> ---
>  src/xen/xend_internal.c |   30 ++++++++++++++++++++++++++----
>  1 files changed, 26 insertions(+), 4 deletions(-)
> 
> diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c
> index bfaed65..8859373 100644
> --- a/src/xen/xend_internal.c
> +++ b/src/xen/xend_internal.c
> @@ -2233,11 +2233,12 @@ xenDaemonDomainSetVcpusFlags(virDomainPtr domain, unsigned int vcpus,
>   */
>  int
>  xenDaemonDomainPinVcpu(virDomainPtr domain, unsigned int vcpu,
> -                     unsigned char *cpumap, int maplen)
> +                       unsigned char *cpumap, int maplen)
>  {
>      char buf[VIR_UUID_BUFLEN], mapstr[sizeof(cpumap_t) * 64];
> -    int i, j;
> +    int i, j, ret;
>      xenUnifiedPrivatePtr priv;
> +    virDomainDefPtr def = NULL;
> 
>      if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)
>       || (cpumap == NULL) || (maplen < 1) || (maplen > (int)sizeof(cpumap_t))) {
> @@ -2265,8 +2266,29 @@ xenDaemonDomainPinVcpu(virDomainPtr domain, unsigned int vcpu,
>          mapstr[strlen(mapstr) - 1] = 0;
> 
>      snprintf(buf, sizeof(buf), "%d", vcpu);
> -    return(xend_op(domain->conn, domain->name, "op", "pincpu", "vcpu", buf,
> -                  "cpumap", mapstr, NULL));
> +
> +    ret = xend_op(domain->conn, domain->name, "op", "pincpu", "vcpu", buf,
> +                  "cpumap", mapstr, NULL);
> +
> +    if (!(def = xenDaemonDomainFetch(domain->conn,
> +                                     domain->id,
> +                                     domain->name,
> +                                     NULL)))
> +        goto cleanup;
> +
> +    if (ret == 0) {
> +        if (virDomainVcpupinAdd(def, cpumap, maplen, vcpu) < 0) {
> +            virXendError(VIR_ERR_INTERNAL_ERROR,
> +                         "%s", _("failed to add vcpupin xml entry"));
> +            return (-1);
> +        }
> +    }
> +
> +    return ret;
> +
> +cleanup:
> +    virDomainDefFree(def);
> +    return -1;
>  }

 ACK,

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel at veillard.com  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/