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Re: [Qemu-devel] [PATCH 3/3] Get system state configuration from QEMU an

From: Kevin O'Connor
Subject: Re: [Qemu-devel] [PATCH 3/3] Get system state configuration from QEMU and patch DSDT with it.
Date: Sun, 20 May 2012 12:39:13 -0400
User-agent: Mutt/1.5.21 (2010-09-15)

On Sun, May 20, 2012 at 07:25:40PM +0300, Avi Kivity wrote:
> 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.

The DSDT has claimed S3, S4, and S5 support since SeaBIOS has
supported ACPI.  What's the background to the requirement to stop
claiming support for it?


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