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Re: [Xen-devel] HVM guest shutdown send ACPI Power Event
| To: | "Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] HVM guest shutdown send ACPI Power Event |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Fri, 23 Mar 2007 18:26:56 +0000 |
| Delivery-date: | Fri, 23 Mar 2007 11:26:05 -0700 |
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| Thread-topic: | [Xen-devel] HVM guest shutdown send ACPI Power Event |
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On 23/3/07 14:29, "Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx> wrote: > Is there any plans to help HVM guests shutdown cleanly by issuing an ACPI > power button event on HVM shutdown with a configurable timeout? > > This way it would allow ACPI aware HVM guests to initiate a clean shutdown and > xend will only forcibly shutdown the guest if it hasn't powered itself off > within the timeout value. > > This would be extremely helpful for Windows guests which can detect the ACPI > power button event and cleanly shutdown. I think this is quite likely. It just needs someone to grok how the ACPI event mechanism works. I expect some extra procedures are needed in the ACPI tables, an extra IO port perhaps needs to be emulated in qemu-dm and also we'd need to trigger ACPI SCIs from qemu. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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