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Re: [Qemu-devel] [Xen-devel] [PATCH] Citrix PV Bus device [V3]

From: Ian Campbell
Subject: Re: [Qemu-devel] [Xen-devel] [PATCH] Citrix PV Bus device [V3]
Date: Wed, 3 Jul 2013 09:28:42 +0100

On Tue, 2013-07-02 at 19:05 +0100, Stefano Stabellini wrote:
> On Tue, 2 Jul 2013, Stefano Stabellini wrote:
> > - the new device should have configurable vendor and device ids, so that
> > host admins can select which vendor's PV drivers are going to be
> > automatically installed on all your Windows guests. This should probably
> > be a VM config option (pvdevice=<gplpv|citrix|suse|oracle|etc>, libxl would
> > then pass a vendor and device id pair to QEMU via command line.
> > We can come up with a config syntax that would support both numeric
> > pairs as well as simple labels.
> Anthony,
> would you be happy to have a PCI device in QEMU with configurable vendor
> and device IDs?

IIRC there is also a revision field in the PCI config space. Might as
well make that configurable too.

There are also sub-vendor and sub-device IDs but I don't think they are
so useful for us (AFAIK they are intended to allow the board
manufacturer to "subclass" the IDs baked into the ASIC).

> If not, would you be OK with a PCI device with the Xen vendor ID but a
> configurable device ID?
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