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Re: [Xen-devel] vcpu_pause
| To: | Ky Srinivasan <ksrinivasan@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] vcpu_pause |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Sun, 04 Mar 2007 11:56:25 +0000 |
| Delivery-date: | Sun, 04 Mar 2007 03:55:43 -0800 |
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| Thread-topic: | [Xen-devel] vcpu_pause |
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Synchronous vcpu_pause() and domain_pause() are only used on paths executable in dom0 context. Hence there is no loop in the graph of domain-X-can-pause-domain-Y, and we'll need to maintain that asymmetry when we disaggregate dom0. For now, a BUG_ON(current->domain != dom0) in vcpu_sleep_sync() would probably make things clearer. -- Keir On 2/3/07 23:26, "Ky Srinivasan" <ksrinivasan@xxxxxxxxxx> wrote: > What are the expected entry conditions to call vcpu_pause. How do we guarantee > two vcpus don't deadlock by calling pause on each other. > > Regards, > > K. Y > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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