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(parent: 5d87e4b) | patch
xics-kvm: enable irqfd for MSI
authorAlexey Kardashevskiy <aik@ozlabs.ru>
Thu, 26 Sep 2013 06:18:47 +0000 (16:18 +1000)
committerAlexander Graf <agraf@suse.de>
Fri, 25 Oct 2013 21:25:47 +0000 (23:25 +0200)
commit9554233c9b8fe7d94dfa53db09ce3d186f2e8b9e
tree4ab77e23fef9bf6db87695a400f83a5639edf374tree | snapshot
parent5d87e4b74a0100fbb7970edaa3449eb04b06f782commit | diff
xics-kvm: enable irqfd for MSI

This enables IRQFD support for sPAPR. The feature decreases the latency
of interrupt handling.

To enable IRQFD for MSI, this sets kvm_gsi_direct_mapping to true which
enables direct MSI mapping.

To enable IRQFD for LSI (level triggered INTx interrupts), a PCI host bus
callback is required. The patch for that is coming next.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
hw/intc/xics_kvm.c diff | blob | history
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