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Re: [Xen-devel] [PATCH] Change spec of callback IRQ for PV-on-HVM onIA64

To: Keir Fraser <keir@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] Change spec of callback IRQ for PV-on-HVM onIA64
From: Doi.Tsunehisa@xxxxxxxxxxxxxx
Date: Tue, 21 Nov 2006 17:07:26 +0900
Cc: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Doi.Tsunehisa@xxxxxxxxxxxxxx, Alex Williamson <alex.williamson@xxxxxx>
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Hi Keir,

You (keir) said:
>>>  In x86-linux, two instances are same. But in IA64-linux, previous one
>>> is a external interrupt vector for xen-platform interruption. Although
>>> latter one is a hardware IRQ id. Both values are not same in IA64-linux.
>> 
>> The callback value is the one pending to vIRR, which should be same
>> as the one that platform-pci driver binds to. I'm still not sure the exact
>> difference here. It should be arch-independent. You have to draw
>> agreement between two sides.
> 
> On x86 the callback value is a Global System Interrupt.

  Currently, On IA64 the callback value is External Interrupt Vector.
I want to change the value to be Global System Interupt like x86.

Thanks,
- Tsunehisa Doi

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