On Monday 25 May 2009, Michael S. Tsirkin wrote:
> Add functions implementing MSI-X support. First user will be virtio-pci.
> Note that platform must set a flag to declare MSI supported.
> For PC this will be set by APIC.

This sounds wrong. The device shouldn't know or care whether the system has a 
MSI capable interrupt controller. That's for the guest OS to figure out.

Paul 
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