Re: [Xen-devel] MSI-X interrupts to guests

[Kieran Mansley <kmansley@xxxxxxxxxxxxxx>]

On Wed, 2009-04-15 at 17:10 +0100, Espen Skoglund wrote:
> Oh.  I just noticed that you map the MSI directly to the guest.  You
> should first map it into dom0 as an MSI (to set up the MSI-X
> descriptor)

OK, I'll check that: I thought our driver might be doing that already,
but apparently not.

> and then map it to domU as a GSI.

The GSI bit is something I wasn't expecting.  Any hints on the API for
mapping this?  Having done so I assume that the request_irq() in the
guest should then succeed.

Thanks very much for your help.

Kieran


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