This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-devel] PV drivers for HVM guest

To: <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Ky Srinivasan" <KSrinivasan.PRV-5.PROVO@xxxxxxxxxx>
Subject: Re: [Xen-devel] PV drivers for HVM guest
From: "Ky Srinivasan" <ksrinivasan@xxxxxxxxxx>
Date: Fri, 27 Apr 2007 14:40:50 -0600
Delivery-date: Fri, 27 Apr 2007 13:39:34 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <4632028C.E57C.0030.0@xxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <4632028C.E57C.0030.0@xxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
After some more hacking, if I were to use the irqline information available in 
the pci config space for this device, both in establishing the handler  for 
this device (request_irq()) as well as in registering the callback irq 
(set_callback_irq()) things seem to work.


K. Y

>>> On Fri, Apr 27, 2007 at  3:12 PM, in message 
>>> <4632028C.E57C.0030.0@xxxxxxxxxx>,
"Ky Srinivasan" <ksrinivasan@xxxxxxxxxx> wrote: 
> In platform_pci.c we register the IRQ that the hypervisor should use to 
> notify the guest in response to event channel notifications.  In cases where 
> the mapping between irq and vectors are not one to one, I am not sure how 
> this can work. For instance, on a  RHEL 4 installation (with acpi turned on)  
> I am looking at, the irq assigned to the platform- pci device is 185! 
> Consequently the set_callback_irq() fails since the number passed down 
> exceeds the number of pins being emulated. Any insight will be greatly 
> appreciated.
> Regards,
> K. Y
> _______________________________________________
> Xen- devel mailing list
> Xen- devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen- devel

Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>