On 08/29/2011 07:34 AM, Sasha Levin wrote:
> Cc: Avi Kivity <avi@xxxxxxxxxx>
> Cc: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
> Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
> ---
> Documentation/virtual/kvm/api.txt | 27 +++++++++++++++++++++++++++
> 1 files changed, 27 insertions(+), 0 deletions(-)
>
> diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
> index 2d510b6..d1150b6 100644
> --- a/Documentation/virtual/kvm/api.txt
> +++ b/Documentation/virtual/kvm/api.txt
> @@ -1450,6 +1450,33 @@ is supported; 2 if the processor requires all virtual machines to have
> an RMA, or 1 if the processor can use an RMA but doesn't require it,
> because it supports the Virtual RMA (VRMA) facility.
>
> +4.64 KVM_IRQFD
> +
> +Capability: KVM_CAP_IRQFD
> +Architectures: all
> +Type: vm ioctl
> +Parameters: struct kvm_irqfd (in)
> +Returns: 0 on success, !0 on error
> +
> +This ioctl attaches or detaches an eventfd to a GSI within the guest.
> +While the eventfd is assigned to the guest, any write to the eventfd
> +would trigger the GSI within the guest.
> +
> +struct kvm_irqfd {
> + __u32 fd;
> + __u32 gsi;
> + __u32 flags;
> + __u8 pad[20];
> +};
Should define "gsi" (and how it's used by KVM) somewhere. AFAICT it's
an ACPI-ism.
-Scott
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