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

[Xenbegn developer <xen.begn.dev@xxxxxxxxx>]

On 7/15/14, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
> 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.
>>
One supplement question, does Xen do PCI devices enumeration or Dom0 does it ?


>> Thanks
>
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>
>

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