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Re: [Qemu-devel] [PATCH 1/4] hw/pxb: remove the built-in pci bridge
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From: |
Gerd Hoffmann |
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Subject: |
Re: [Qemu-devel] [PATCH 1/4] hw/pxb: remove the built-in pci bridge |
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Date: |
Fri, 13 Nov 2015 10:13:22 +0100 |
On Do, 2015-11-12 at 17:11 +0200, Marcel Apfelbaum wrote:
> As part of porting the pxb device to Q35 remove the internal pci-2-pci
> bridge. The only way to hot-pug devices on the extra PCI root buses
> is by adding a pci-2-pci to the pxb before the firmware assign the
> IO/mem resources.
I think this breaks live migration and is guest-visible too. So not
going to fly without backward-compatibility mode for old machine
types ...
Possibly it is easier to just have have pci and pcie pxb devices look
differenty rather than adding all the compatibility fluff.
cheers,
Gerd