RE: Re: [Xen-devel] need help about CPU offline/hotplug in Xen Unstable

["Ke, Liping" <liping.ke@xxxxxxxxx>]

please try below test code piece. Hope it could help you.

 

Thanks& Regards,

Criping

 

#include <stdio.h>
#include <stdlib.h>

 

#include <xenctrl.h>

 

int main(int argc, char *argv[] )
{
    int cpu, xc_id;
    if ( argc < 2) {
        printf("Please input offline CPU-id\n");
        exit(0);
    }
    cpu = atoi(argv[1]);
    printf("Offline CPU %d\n", cpu);
    xc_id = xc_interface_open();
    xc_cpu_offline(xc_id, cpu);
    printf("CPU offlined\n");
    xc_interface_close(xc_id);
    return 0;
}

---

From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of ChristieShum@xxxxxxxxx
Sent: 2009年5月13日 12:30
To: Xen-devel
Subject: Re: Re: [Xen-devel] need help about CPU offline/hotplug in Xen Unstable

Thanks a lot.
Is there a sample or tutorial for how to implement 
the offline process using this library?

On May 12, 2009 11:02pm, Keir 
Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
> On 12/05/2009 15:47, 
"Ting Shen" christieshum@xxxxxxxxx> wrote:
> 
> 
> 
> 
> Then I downloaded the stable version from xen.org http://xen.org> 
 and
> 
> > installed.
> 
> > But since the 
document is not updated, I don't know the detail method to
> 
> > 
offline a physical CPU.
> 
> 
> 
> It's available as a 
library function (xc_cpu_offline) but not actually
> 
> plumbed into 
a xm command, or other tool.
> 
> 
> 
>  -- 
Keir
> 
> 
> 
> 
>
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