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Re: [Qemu-devel] [PATCH 1.0] ac97: don't override the pci subsystem id

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [PATCH 1.0] ac97: don't override the pci subsystem id
Date: Mon, 07 Nov 2011 16:10:00 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.23) Gecko/20110927 Red Hat/3.1.15-1.el6_1 Thunderbird/3.1.15 
  Hi,

> This is more of an edge case however, since we know that hardware tools
> rely on PCI IDs.

The ID is invalid, you can't do anything useful with it ...

> For example our hypothetical ABI signature tool will
> certainly include lspci like functionality and detect this as a change.

... except maybe recording it somewhere to notice when changes.

So I guess your point is Windows guests might think they got a new sound
card, record that has hardware change and may require re-activation
because of that?

cheers,
  Gerd
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