[PATCH 0/2] KVM: x86: fix edge EOI and IOAPIC reconfig race

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[1/2] changes sync_pir_to_irr interface to avoid a definitely
superfluous KVM_REQ_EVENT in [2/2].  It's possible that we don't need
KVM_REQ_EVENT, but a slight slowdown in execution is worth the time
needed for a proof.  (A quick test showed that KVM_REQ_EVENT is always
already set if sync_pir_to_irr does something.)

[2/2] is applicable to userspace split IOAPIC as well, but I hope that
we want it to work like normal IOAPIC (no ACK for edge irq), so I
haven't fixed it.


Radim Krčmář (2):
  KVM: x86: return bool from x86_ops.sync_pir_to_irr
  KVM: x86: fix edge EOI and IOAPIC reconfig race

 arch/x86/include/asm/kvm_host.h |  2 +-
 arch/x86/kvm/ioapic.c           |  7 ++++++-
 arch/x86/kvm/svm.c              |  4 ++--
 arch/x86/kvm/vmx.c              | 12 +++++++-----
 4 files changed, 16 insertions(+), 9 deletions(-)

-- 
2.5.0

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