[Xen-devel] IOMMU API in Xen to assign a PCI Device MMIO range for a Domain

[manish jaggi <manishjaggi.oss@xxxxxxxxx>]

Hi Stefano / Julien,

I am trying to assign a PCI device to domU. This would mean creating a
mapping of BAR region for DomU. As of now there is no support of PCI
pass through for ARM. The IOMMU ops provide the support for assigning
a device tree dev to a domain which is not the case here.

What if I have to do something like this

xl pci-attach <dom-id> <bdf>
which would read the BAR and send a hyper-call to Xen to map that
region to the dom-id.

Is there anything exists for X86 which can be used ?
Is this approach fine ?

-Regards
mj

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