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Re: [Xen-devel] [PATCH 0/4] HVM Virtual S3



On 14/5/08 10:50, "Ke, Liping" <liping.ke@xxxxxxxxx> wrote:

> 1. if hvm in s3suspended, could we allow pause/unpause/suspend/resume
> operation?
>     Need we add condition guard in python code?

I think pause/unpause still makes sense. Obviously a paused and s3suspended
guest will not run again until both s3 resumed and unpaused. As for
suspend/resume, that should also just work I think? Isn't the point to be
able to s3-suspend then save then restore then s3-resume?

> 2. when we add a new flag is_s3_suspended in dominfo structure, it will affect
> other
> Trace/statistic tools in xen, seems this is not a very small change?
>    The above two changes is ok for you or not?

I don't really care to have is_s3_suspended visible via dominfo. Leave it
hidden if you like. Xend should be able to remember whether it s3-suspended
a domain, if it needs to. Or we can expose it via an interface other than
dominfo. We could, for example, make it an HVM_PARAM. Then you can
enter/leave/interrogate s3suspend state via the existing hvm_op param
interfaces.

 -- Keir



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