KVM: optimize apic interrupt delivery

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Most interrupt are delivered to only one vcpu. Use pre-build tables to
find interrupt destination instead of looping through all vcpus. In case
of logical mode loop only through vcpus in a logical cluster irq is sent
to.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Gleb Natapov 2012-09-13 17:19:24 +03:00 • committed by Avi Kivity

parent 1d86b5cc4c

commit 1e08ec4a13

5 changed files with 199 additions and 13 deletions

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12

arch/x86/include/asm/kvm_host.h

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188

arch/x86/kvm/lapic.c

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3

arch/x86/kvm/lapic.h

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2

arch/x86/kvm/x86.c

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7

virt/kvm/irq_comm.c

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