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Re: [Xen-devel] Injecting physical IRQ (pirq) into hvm guest

  • To: "Yu, Ke" <ke.yu@xxxxxxxxx>
  • From: "sanjay kushwaha" <sanjay.kushwaha@xxxxxxxxx>
  • Date: Mon, 10 Jul 2006 22:33:41 -0400
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Mon, 10 Jul 2006 19:34:05 -0700
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No. even calling it twice didn't work.


On 7/9/06, Yu, Ke <ke.yu@xxxxxxxxx> wrote:

To inject a irq into HVM guest, should call pic_set_irq twice like this:
pic_set_irq(pic, irq, 0);
pic_set_irq(pic, irq, 1);

Calling it one time won't work. Is it the reason for your case?

- Ke
Intel Opensource Technology Center

From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of sanjay kushwaha
Sent: 2006?7?10? 6:03
To: xen-devel
Subject: [Xen-devel] Injecting physical IRQ (pirq) into hvm guest

Hi Folks,
I want to inject an interrupt into the hvm guest based on a physical IRQ (pirq) 
I receive in Xen hypervisor. I tried calling
pic_set_irq() function in ../xen/arch/x86/i8259.c but that didn't work.

Could someone please help me with this?


PhD Student, Georgia Tech

PhD Student, Georgia Tech

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