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    SubjectRe: [PATCH v2 2/6] kvm: Add missing KVM_IRQFD API documentation
    On Tue, Jun 26, 2012 at 11:09:17PM -0600, Alex Williamson wrote:
    > Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

    Acked-by: Michael S. Tsirkin <mst@redhat.com>

    > ---
    >
    > Documentation/virtual/kvm/api.txt | 16 ++++++++++++++++
    > 1 file changed, 16 insertions(+)
    >
    > diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
    > index 310fe50..ea9edce 100644
    > --- a/Documentation/virtual/kvm/api.txt
    > +++ b/Documentation/virtual/kvm/api.txt
    > @@ -1965,6 +1965,22 @@ return the hash table order in the parameter. (If the guest is using
    > the virtualized real-mode area (VRMA) facility, the kernel will
    > re-create the VMRA HPTEs on the next KVM_RUN of any vcpu.)
    >
    > +4.76 KVM_IRQFD
    > +
    > +Capability: KVM_CAP_IRQFD
    > +Architectures: x86
    > +Type: vm ioctl
    > +Parameters: struct kvm_irqfd (in)
    > +Returns: 0 on success, -1 on error
    > +
    > +Allows setting an eventfd to directly trigger a guest interrupt.
    > +kvm_irqfd.fd specifies the file descriptor to use as the eventfd and
    > +kvm_irqfd.gsi specifies the irqchip pin toggled by this event. When
    > +an event is tiggered on the eventfd, an interrupt is injected into
    > +the guest using the specified gsi pin. The irqfd is removed using
    > +the KVM_IRQFD_FLAG_DEASSIGN flag, specifying both kvm_irqfd.fd
    > +and kvm_irqfd.gsi.
    > +
    >
    > 5. The kvm_run structure
    > ------------------------


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