On 03/31/2014 03:53 PM, Peter Maydell wrote:
On 31 March 2014 14:44, Alexander Graf <agraf@xxxxxxx> wrote:
IRQ Routing is really just a map from a flat number space that KVM uses
internally to specific interrupt controller pins. So if you see a "GSI" that
really just means "global interrupt index number".
Er, but we already have a global interrupt index number
for ARM, it's the value you pass to KVM_IRQ_LINE. What
extra does IRQ routing bring to the party?
It allows you to have multiple distributors :). And MSI target IDs that
you can use for irqfd.
Alex
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