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

  • To: "sanjay kushwaha" <sanjay.kushwaha@xxxxxxxxx>, "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Dong, Eddie" <eddie.dong@xxxxxxxxx>
  • Date: Mon, 10 Jul 2006 08:54:25 +0800
  • Delivery-date: Sun, 09 Jul 2006 17:56:03 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acajo3xCPwoEBC55Tde2G7xkpypXoAAFw6yQ
  • Thread-topic: [Xen-devel] Injecting physical IRQ (pirq) into hvm guest

Guess you are trying direct hardware assignment for HVM.
How do you translate the vetor to IRQ line?
If the physical IRQ you received is a PCI IRQ, then the guest PIR may be different with machine PIR.
thanks, eddie

From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of sanjay kushwaha
Sent: 2006年7月10日 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
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