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Re: [XenPPC]:PPC kernel shutdown & resume over Xen

from [Hollis Blanchard]

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To:	Yi Ge <geyi@xxxxxxxxxx>
Subject:	Re: [XenPPC]:PPC kernel shutdown & resume over Xen
From:	Hollis Blanchard <hollisb@xxxxxxxxxx>
Date:	Wed, 27 Sep 2006 11:25:13 -0500
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On Tue, 2006-09-26 at 18:05 -0400, Yi Ge wrote:
> We've tried to shutdown and resume the domU kernel based on the code
> from xen-tools and reboot.c.
> The DomU has been suspended and got the status "s" in xm list, but we
> can't resume it. Who can tell us how the HYPERVISOR_suspend and its
> parameter "srec" works on the suspend/shutdown procedure? 

I don't think anybody else on this list has looked in to suspend before.
So I have two suggetions:
1) look into the Xen code that implements this hypercall. In particular,
you're looking for SCHEDOP_shutdown in xen/common/schedule.c
2) if you don't understand that, you can ask specific questions on
xen-devel@xxxxxxxxxxxxxxxxxxxx

>From a quick read, it looks to me like the 'srec' parameter is totally
ignored, and may be an artifact from old code. If so, you should submit
a patch to xen-devel to remove it.

-- 
Hollis Blanchard
IBM Linux Technology Center

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