veerasena reddy
2011-Jun-05 13:35 UTC
[Xen-devel] how to route interrupts directly to HVM guest from hypervisor
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. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Tim Deegan
2011-Jun-06 08:47 UTC
Re: [Xen-devel] how to route interrupts directly to HVM guest from hypervisor
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) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel