On 26 October 2012 12:57, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
> If you exclude old-style PCI pass-through and limit yourself to vhost
> and VFIO, you can treat irqfd as "the" in-kernel source of the
> interrupt. Then you need a mapping between MSIs and numbers used in
> KVM_IRQFD ("GSIs").
>
> This is what KVM_SET_GSI_ROUTING modifies, and basically the mapping is
> modified every time a vector is masked/unmasked in the MSI-X table.
So SET_GSI_ROUTING sets the routing for MSIs? Very logical...
-- PMM
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