[Xen-devel][PATCH][RFC] Implement interrupt affinity for dom0 in IPF side

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

Hi keir,


Until now, all interrupts of dom0 are delivered to vcpu0 of dom0.

This patch implements interrupt affinity for dom0 in IPF side.

The method is to capture the operation where dom0 programs IOSAPIC,
Thus Xen can know which interrupt of dom0 will pin to which vcpu of
dom0.

In IA32 side, dom0 programs IO-APIC RTE to logical dest mode, 
So it's difficult for XEN to know the interrupt binding imformation of
dom0.

What's your opinion about this?

Thanks,
Anthony

Attachment: interrupt_affinity.patch
Description: interrupt_affinity.patch

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