Re: [Xen-devel] any exit function in xen that is similar to exit_kernel?

[George Dunlap <George.Dunlap@xxxxxxxxxxxxx>]

On Tue, Nov 29, 2011 at 2:22 PM, Baozeng <sploving1@xxxxxxxxx> wrote:
> Hello all,
> I added a hypercall "do_greet" that only prints "Hello world" to do a
> small experiment. After it prints the "hello world", I would it to
> exit from Xen and stop current process. For instance:
> the hypercall is like this:
> int do_greet(){
>   pirntk("Hello world\n");
>   /*then I would it exit from Xen and stop current process that called it.*/
>   exit_?? //exit(0) does not work.
> }
>
> If a process at the application level calls this hypercall through
> privcmd file, I would like it kill this process after the hypercall
> prints "Hello world". Then how to do that?

A process is a guest kernel-level construct.  Xen doesn't know
anything about processes; it only knows things about VMs.  You can
easily kill the guest by doing this:
  domain_crash(current->domain);

If you want the process only to be killed, you have to have the guest
kernel do it.

 -George

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