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Re: [Xen-devel] [PATCH v3] Hvmloader: Modify ACPI to only supply _EJ0 methods for PCIslots that support hotplug by runtime patching
- To: "Gonglei (Arei)" <arei.gonglei@xxxxxxxxxx>
- From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
- Date: Thu, 8 May 2014 12:26:21 +0100
- Cc: "kevin@xxxxxxxxxxxx" <kevin@xxxxxxxxxxxx>, "seabios@xxxxxxxxxxx" <seabios@xxxxxxxxxxx>, "Huangweidong \(C\)" <weidong.huang@xxxxxxxxxx>, "stefano.stabellini@xxxxxxxxxxxxx" <stefano.stabellini@xxxxxxxxxxxxx>, "qemu-devel@xxxxxxxxxx" <qemu-devel@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>, "johannes.krampf@xxxxxxxxxxxxxx" <johannes.krampf@xxxxxxxxxxxxxx>, "fabio.fantoni@xxxxxxx" <fabio.fantoni@xxxxxxx>, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, "JBeulich@xxxxxxxx" <JBeulich@xxxxxxxx>, "anthony.perard@xxxxxxxxxx" <anthony.perard@xxxxxxxxxx>, "Hanweidong \(Randy\)" <hanweidong@xxxxxxxxxx>, "Gaowei \(UVP\)" <gao.gaowei@xxxxxxxxxx>, Paul Durrant <paul.durrant@xxxxxxxxxx>
- Delivery-date: Thu, 08 May 2014 11:26:34 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On Thu, 2014-05-08 at 07:29 +0000, Gonglei (Arei) wrote:
> > + rmvc_pcrm = inl(PCI_RMV_BASE);
> > >
> > >
> > > So .. what is at this special 0xae0c address?
> > >
> > > Is there some code in QEMU that needs this treatment as well?
> > >
> Yep, the 0xae0c is defined in upstream QEMU, which show the hotplugging
> ability
> of PCI devices.
Is this considered to be a ABI by qemu? Or is it subject to change?
How is this going to interact with
http://lists.xen.org/archives/html/xen-devel/2014-05/msg00026.html ? (At
leas then it is a Xen interface I suppose)
Ian.
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