* how to route interrupts directly to HVM guest from hypervisor
@ 2011-06-05 13:35 veerasena reddy
2011-06-06 8:47 ` Tim Deegan
0 siblings, 1 reply; 2+ messages in thread
From: veerasena reddy @ 2011-06-05 13:35 UTC (permalink / raw)
To: xen-devel
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Hi,
I want to customize my XEN-4.0 hypervisor to directly pass interrupts from
an IO device to HVM guest driver directly without involving dom0. Means,
when the hypervisor receives real interrupts from IO device and then i want
to send virtual interrupt to HVM guest without involving dom0.
Could you please advice where can i start for this?
Thanks in advance.
Regards,
VSR.
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* Re: how to route interrupts directly to HVM guest from hypervisor
2011-06-05 13:35 how to route interrupts directly to HVM guest from hypervisor veerasena reddy
@ 2011-06-06 8:47 ` Tim Deegan
0 siblings, 0 replies; 2+ messages in thread
From: Tim Deegan @ 2011-06-06 8:47 UTC (permalink / raw)
To: veerasena reddy; +Cc: xen-devel
Hi,
At 19:05 +0530 on 05 Jun (1307300753), veerasena reddy wrote:
> I want to customize my XEN-4.0 hypervisor to directly pass interrupts from
> an IO device to HVM guest driver directly without involving dom0. Means,
> when the hypervisor receives real interrupts from IO device and then i want
> to send virtual interrupt to HVM guest without involving dom0.
This is already how PCI passthrough devices work, AIUI. Have a look at
xc_domain_bind_pt_irq() in libxc.
Tim.
--
Tim Deegan <Tim.Deegan@citrix.com>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)
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