Re: [Xen-devel] [PATCH 0/2] PV drivers product number registration

[Konrad Rzeszutek Wilk <konrad@xxxxxxxxxx>]

On Wed, Sep 26, 2012 at 01:23:30PM +0100, Paul Durrant wrote:
> PV drivers in HVM guests typically make use off an 'unplug' protocol in QEMU
> to prevent co-existence of emulated devices.
> See docs/misc/hvm-emulated-unplug.markdown for details.
> 
> The register of product numbers used by the blacklisting feature of this
> protocol is currently directly in the xenstore.c source module of
> traditional QEMU. It should really be in a Xen header file to prevent

Why do we want to blacklist them? Isn't it a whitelist (as in it is
the right values?)

> duplication/conflict between QEMU versions.
> 
> Moreover the linux PV-on-HVM drivers make use of product number 3 seemingly
> without ever registering that number.
> 
> This patch series introduces a new header and registers product number 3
> for Linux's use. A subsequent patch to qemu-xen-unstable wll be created to
> make use of the new header.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
> 
> 
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> 

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