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Re: [Xen-devel] RFC: [PATCH 1/3] Enhance platform support for PCI
- To: Pranavkumar Sawargaonkar <psawargaonkar@xxxxxxx>, Vijay Kilari <vijay.kilari@xxxxxxxxx>
- From: Julien Grall <julien.grall@xxxxxxxxxx>
- Date: Thu, 26 Feb 2015 15:17:02 +0000
- Cc: prasun.kapoor@xxxxxxxxxx, Ian Campbell <ian.campbell@xxxxxxxxxx>, Manish Jaggi <mjaggi@xxxxxxxxxxxxxxxxxx>, "Kumar, Vijaya" <vijaya.kumar@xxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>, "Stefano Stabellini \(Stefano.Stabellini@xxxxxxxxxx\)" <stefano.stabellini@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
- Delivery-date: Thu, 26 Feb 2015 15:17:36 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 26/02/15 14:46, Pranavkumar Sawargaonkar wrote:
> Hi
Hi Pranavkumar,
> Also if we just show only one vITS (or only one Virtual v2m frame)
> instead of two vITS
> then actual hardware interrupt number and virtual interrupt number
> which guest will see will become different
> This will hamper direct irq routing to guest.
The IRQ injection should not consider a 1:1 mapping between pIRQ and vIRQ.
I have a patch which allow virq != pirq:
https://patches.linaro.org/43012/
Regards,
--
Julien Grall
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