* [question] PCI passthrough: when does Xen map device's BARs to guest?
@ 2012-03-08 11:40 cody
2012-03-09 16:42 ` cody
2012-03-09 16:44 ` cody
0 siblings, 2 replies; 4+ messages in thread
From: cody @ 2012-03-08 11:40 UTC (permalink / raw)
To: Xen-devel
Hi,
I checked the assign_device code path but seems only found IOMMU mapping
table setup code in there. When does Xen map device's BARs to guest?
Where's related code? Thanks.
-cody
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [question] PCI passthrough: when does Xen map device's BARs to guest?
2012-03-08 11:40 [question] PCI passthrough: when does Xen map device's BARs to guest? cody
@ 2012-03-09 16:42 ` cody
2012-03-09 16:44 ` cody
1 sibling, 0 replies; 4+ messages in thread
From: cody @ 2012-03-09 16:42 UTC (permalink / raw)
To: Xen-devel
Does anyone know this? Or it is not handled by Xen? Thanks for help.
-cody
On 03/08/2012 07:40 PM, cody wrote:
> Hi,
>
> I checked the assign_device code path but seems only found IOMMU
> mapping table setup code in there. When does Xen map device's BARs to
> guest? Where's related code? Thanks.
>
> -cody
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [question] PCI passthrough: when does Xen map device's BARs to guest?
2012-03-08 11:40 [question] PCI passthrough: when does Xen map device's BARs to guest? cody
2012-03-09 16:42 ` cody
@ 2012-03-09 16:44 ` cody
2012-03-12 7:53 ` Zhang, Xiantao
1 sibling, 1 reply; 4+ messages in thread
From: cody @ 2012-03-09 16:44 UTC (permalink / raw)
To: Xen-devel
Does anyone know this? Or it is not handled by Xen? Thanks for help.
-cody
On 03/08/2012 07:40 PM, cody wrote:
> Hi,
>
> I checked the assign_device code path but seems only found IOMMU
> mapping table setup code in there. When does Xen map device's BARs to
> guest? Where's related code? Thanks.
>
> -cody
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [question] PCI passthrough: when does Xen map device's BARs to guest?
2012-03-09 16:44 ` cody
@ 2012-03-12 7:53 ` Zhang, Xiantao
0 siblings, 0 replies; 4+ messages in thread
From: Zhang, Xiantao @ 2012-03-12 7:53 UTC (permalink / raw)
To: cody, Xen-devel@lists.xensource.com; +Cc: Zhang, Xiantao
It is handled by Xen eventually, but the caller is in qemu-dm. Please refer to pass-through.c for your answer. Thanks!
Xiantao
> -----Original Message-----
> From: xen-devel-bounces@lists.xen.org [mailto:xen-devel-
> bounces@lists.xen.org] On Behalf Of cody
> Sent: Saturday, March 10, 2012 12:45 AM
> To: Xen-devel@lists.xensource.com
> Subject: Re: [Xen-devel] [question] PCI passthrough: when does Xen map
> device's BARs to guest?
>
> Does anyone know this? Or it is not handled by Xen? Thanks for help.
>
> -cody
> On 03/08/2012 07:40 PM, cody wrote:
> > Hi,
> >
> > I checked the assign_device code path but seems only found IOMMU
> > mapping table setup code in there. When does Xen map device's BARs to
> > guest? Where's related code? Thanks.
> >
> > -cody
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
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2012-03-08 11:40 [question] PCI passthrough: when does Xen map device's BARs to guest? cody
2012-03-09 16:42 ` cody
2012-03-09 16:44 ` cody
2012-03-12 7:53 ` Zhang, Xiantao
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