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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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