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[Xen-devel] irq sharing in Xen

  • To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "sanjay kushwaha" <sanjay.kushwaha@xxxxxxxxx>
  • Date: Wed, 12 Jul 2006 18:03:52 -0400
  • Delivery-date: Wed, 12 Jul 2006 15:04:15 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi Folks,
Is IRQ sharing between domains supported in Xen?

I am trying to share a physical IRQ between dom0 and an HVM guest. but it is not working.

when the IRQ is owned only by dom0:
- I inject an irq into dom0 (send_guest_pirq)
- I get back an EOI in xen (__pirq_guest_eoi)

when the IRQ is shared between dom0 and hvm domain
- I inject an irq into dom0 (send_guest_pirq)
- I do not receive the EOI from dom0

Could someone please clarify on this?


PhD Student, Georgia Tech
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