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Re: [Xen-devel] [GSoC-2019] About the crossbar and xen
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Denis Obrezkov <denisobrezkov@xxxxxxxxx>
- Date: Wed, 10 Jul 2019 21:54:21 +0200
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Julien Grall <julien.grall@xxxxxxx>, Hunyue Yau <hy-gsoc@xxxxxxxxxxxxxxx>, Iain Hunter <drhunter95@xxxxxxxxx>
- Delivery-date: Wed, 10 Jul 2019 19:54:38 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
Hi,
On 7/10/19 9:49 PM, Stefano Stabellini wrote:
>
> phandle = <0x00000002>;
>
> I think that means that interrupts go to the GIC via Crossbar; i.e. the
> parent interrupt controller of Crossbar is the GIC.
>
But the crossbar's interrupt-parent node is 0x00000008 and phandle value
0x00000008 belongs to
interrupt-controller@48281000 {
compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
For me it looks like interrupts from crossbar goes to wugen and the from
wugen to GIC. But I don't quite understand it.
--
Regards, Denis Obrezkov
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