Xen devel - Apr 2006 - Xen scheduling

Hi,

Is there anyway GuestOS can prevent from being preempted by other domain?
Are there any locks which allows this? If it can be done how does Xen safe
guard against GuestOS crashes?


Thanks
Siva


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Siva P wrote:
> Is there anyway GuestOS can prevent from being preempted by other  
> domain? Are there any locks which allows this?
Why would such a feature be important to you?

-- Randy



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Randy,

For a case where two or more domains are sharing common resource (i.e shared
pages) across domains and needs some kind of locking. This is not using
grant ref mechanism but some kind of common shared memory (xenFS). It may
require locking if two or more domains use same common machine pages and
needs locking.

Thanks
Siva

On 4/2/06, Randy Thelen <rthelen@netapp.com>
wrote:
>
> Siva P wrote:
>
> > Is there anyway GuestOS can prevent from being preempted by other
> > domain? Are there any locks which allows this?
>
> Why would such a feature be important to you?
>
> -- Randy
>
>
>

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