Re: [Qemu-devel] [PATCH 3/3] Get system state configuration from QEMU and patch DSDT with it.

[Avi Kivity]

On 05/20/2012 07:16 PM, Kevin O'Connor wrote:
> > Here we in agreement, and I was against patching till it was unavoidable,
> > but than pci hotplug started using it, and afterwards processor
> > definitions, so no point in avoiding it now by using inferior methods.
>
> I agree as well.
>
> What's the background to needing to have dynamic S3/S4 definitions?
> (Why will some qemu instances be able to sleep and not others?)
>

Backwards compatibility.  qemu has a -M machine-type option that expose
an old qemu's guest-visible attributes.  If an old qemu didn't support
S3, then -M old shouldn't either.

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