[Libvir] [PATCH] Implement SetVcpus and DomainGetMaxVcpus for qemu
Daniel P. Berrange
berrange at redhat.com
Mon Apr 28 18:39:29 UTC 2008
On Mon, Apr 28, 2008 at 01:46:28PM -0400, Cole Robinson wrote:
> The attached patch fills in two of the vcpu functions for the qemu driver:
>
> virDomainSetVcpus : set the number of vcpus the domain can use
> virDomainGetMaxVcpus : max number of vcpus that can be assigned to the domain.
>
> Code change is only in qemu_driver, as the backend stuff was already in place.
> I also edited qemudGetMaxVcpus to ignore case when checking the passed OS
> type, since it wasn't matching the returned results of qemudDomainGetOSType.
>
> Thanks,
> Cole
> diff --git a/src/qemu_driver.c b/src/qemu_driver.c
> index b65ae66..8bedf5a 100644
> --- a/src/qemu_driver.c
> +++ b/src/qemu_driver.c
> @@ -113,6 +113,8 @@ static int qemudShutdownNetworkDaemon(virConnectPtr conn,
> struct qemud_driver *driver,
> struct qemud_network *network);
>
> +static int qemudDomainGetMaxVcpus(virDomainPtr dom);
> +
> static struct qemud_driver *qemu_driver = NULL;
>
>
> @@ -1524,21 +1526,23 @@ static const char *qemudGetType(virConnectPtr conn ATTRIBUTE_UNUSED) {
> return "QEMU";
> }
>
> -static int qemudGetMaxVCPUs(virConnectPtr conn ATTRIBUTE_UNUSED,
> - const char *type) {
> +static int qemudGetMaxVCPUs(virConnectPtr conn, const char *type) {
> if (!type)
> return 16;
>
> - if (!strcmp(type, "qemu"))
> + if (!strcasecmp(type, "qemu"))
> return 16;
>
> /* XXX future KVM will support SMP. Need to probe
> kernel to figure out KVM module version i guess */
> - if (!strcmp(type, "kvm"))
> + if (!strcasecmp(type, "kvm"))
> return 1;
This comment is seriously out of date - KVM supports 16 (or was is 32?) vCPUs,
so we should change this.
Aside from that, this looks OK to me.
Dan.
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