Re: [Xen-devel] [RFC PATCH v3 10/18] xen/arm: ITS: Add APIs to add and assign device

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

CIOn Mon, 2015-06-22 at 17:31 +0530, vijay.kilari@xxxxxxxxx wrote:
> +/* Device assignment. Should be called from pci_device_add */
> +int its_add_device(struct domain *d, u32 devid)
> +{

Prior to the PCI series landing, and to enable dom0 to use ITS it might
be possible to call this from xen/arch/arm/platforms/thunderx.c via the
specific_mappings platform hook, which would also expose the PCI
controller to dom0 via a series of specific mmio mappings (look at
xen/arch/arm/platforms/xgene-storm.c for the sort of thing I mean).

That would, I think, give basic PCI functionality for dom0 (i.e.
allowing us to boot on thunderx) and decouple things from the PCI series
somewhat, which ought to make things easier overall IMHO.

Ian.


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