[SeaBIOS] [RFC 0/2] (Ongoing)Support multiple pci domains in pci_device
Kevin O'Connor
kevin at koconnor.net
Wed Aug 8 16:14:35 CEST 2018
On Thu, Aug 02, 2018 at 10:39:13AM +0800, Zihan Yang wrote:
> NOTE: This patch set is still ongoing and does not fully function
> as its goal. But it involves some API changes, therefore I post them for
> comments before moving on to make sure I'm on the right path.
>
> The corresponding qemu part can be found at
> https://gitlab.com/WhoisZihan/qemu-pci-domain/tree/master/qemu
> I will submit it to qemu list later.
>
> Currently seabios assumes there is only one pci domain(0), and almost
> everything operates on pci domain 0 by default. This patch aims to add
> multiple pci domain support for pci_device, while reserve the original
> API for compatibility.
Thanks. I understand the desire to support multiple PCI domains in
QEMU and the guest OS. However, what is the high level reason for
wanting the BIOS to be able to interact with the secondary PCI
domains?
-Kevin
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