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(parent: 01f2188) | patch
kvm: deliver msi interrupts from irq handler
authorMichael S. Tsirkin <mst@redhat.com>
Wed, 17 Oct 2012 16:06:06 +0000 (18:06 +0200)
committerGleb Natapov <gleb@redhat.com>
Wed, 5 Dec 2012 13:10:53 +0000 (15:10 +0200)
commit78c634402a1825f1f5bef13077f0985f3b8a3212
tree1dac3b54821c39c1b893f0a2db4806dacc917bdctree | snapshot
parent01f218803757c9ec1152ac2fd39d03c27c452634commit | diff
kvm: deliver msi interrupts from irq handler

We can deliver certain interrupts, notably MSI,
from atomic context.  Use kvm_set_irq_inatomic,
to implement an irq handler for msi.

This reduces the pressure on scheduler in case
where host and guest irq share a host cpu.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
virt/kvm/assigned-dev.c diff | blob | history
Andy's Linux Kernel repo