Re: [Xen-devel] [Query] How does Xen X86 does pci enumeration

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Tue, Jul 15, 2014 at 11:54:34AM +0530, Xenbegn developer wrote:
> Hi,
> 
> Small beginner query. Where in Xen X86 code pci ep enumeration is done?
> I believe it this should be the flow of events
> a)  from ACPI enumerate all the PCI controllers
> b) On each Controller start enumerating the pci devices.

No. You can also query the PCI via the configuration registers.

Look in the 'pci.c' files.
> 
> I started from _start_xen in arch/x86/setup.c but couldnt find the top
> level function.
> Can anyone please provide pointer.
> 
> Thanks

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