From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Xenbegn developer <xen.begn.dev@gmail.com>
Cc: xen-devel@lists.xen.org
Subject: Re: [Query] How does Xen X86 does pci enumeration
Date: Wed, 16 Jul 2014 09:49:07 -0400 [thread overview]
Message-ID: <20140716134907.GK19585@laptop.dumpdata.com> (raw)
In-Reply-To: <CABJY2XC7jsuJSoP2WuLkSthzBeytxf7HduT9=-hpM=E2hv7LAA@mail.gmail.com>
On Wed, Jul 16, 2014 at 05:25:07PM +0530, Xenbegn developer wrote:
> On 7/15/14, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 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 ?
Both.
>
>
> >> Thanks
> >
> >> _______________________________________________
> >> Xen-devel mailing list
> >> Xen-devel@lists.xen.org
> >> http://lists.xen.org/xen-devel
> >
> >
next prev parent reply other threads:[~2014-07-16 13:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-15 6:24 [Query] How does Xen X86 does pci enumeration Xenbegn developer
2014-07-15 14:51 ` Konrad Rzeszutek Wilk
2014-07-16 11:55 ` Xenbegn developer
2014-07-16 13:49 ` Konrad Rzeszutek Wilk [this message]
2014-07-22 9:51 ` Xenbegn developer
2014-07-22 19:26 ` Konrad Rzeszutek Wilk
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