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Re: [Qemu-devel] [PATCH V5] hw/virtio: Add PCIe capability to virtio dev

From: Shmulik Ladkani
Subject: Re: [Qemu-devel] [PATCH V5] hw/virtio: Add PCIe capability to virtio devices
Date: Tue, 1 Dec 2015 15:18:02 +0200


On Tue, 1 Dec 2015 13:48:13 +0200, address@hidden wrote:
> > May I suggest the following:
> > - Expose 'pci_qdev_realize'
> > - Have 'virtio_pci_class_init' arm it's own dc->realize,
> >    which will first set 'QEMU_PCI_CAP_EXPRESS' flag as needed,
> >    and then call 'pci_qdev_realize'
> > - Now, in 'virtio_pci_realize' we may use 'pci_is_express' instead of
> >    directly checking the proxy->flags
> >
> > If this sounds ok, I'll submit a fix.
> Give it a try, sure, but you don't need to expose pci_qdev_realize,
> you can 'hijack' parent's realize method before replacing it.

Actually I caught this as I needed to do something very similar to

Since we need this in 2 places, I thought it would be better to expose
pci_qdev_realize (maybe name it better) and not store parent's original
realize before replacing it.


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