[Xen-devel] How does domU access PCI configure space?

[Kai Huang <mail.kai.huang@xxxxxxxxx>]

Hi,

In my understanding, domU's PCI configure space access (ncluding
virtual device's and direct io's) is always trapped and emulated by
xen hypervisor. How did xen do it? Through exposing PCI configure
space area to domU as non-accessible memory? Where's the code to deal
of this? Thanks!

-cody

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