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84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
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/** @file
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Event Channel function declaration.
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Copyright (C) 2014, Citrix Ltd.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __XENBUS_EVENT_CHANNEL_H
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#define __XENBUS_EVENT_CHANNEL_H
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#include "XenBusDxe.h"
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#include <IndustryStandard/Xen/event_channel.h>
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/**
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Send an event to the remote end of the channel whose local endpoint is Port.
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@param Dev A pointer to XENBUS_DEVICE.
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@param Port The port to notify.
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@return Return 0 on success, or return the errno code from the hypercall.
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**/
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UINT32
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XenEventChannelNotify (
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IN XENBUS_DEVICE *Dev,
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IN evtchn_port_t Port
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);
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/*
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* XenBus protocol
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*/
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/**
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Allocate a port that can be bind from domain DomainId.
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@param This A pointer to the XENBUS_PROTOCOL.
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@param DomainId The domain ID that can bind the newly allocated port.
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@param Port A pointer to a evtchn_port_t that will contain the newly
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allocated port.
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@retval UINT32 The return value from the hypercall, 0 if success.
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**/
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UINT32
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EFIAPI
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XenBusEventChannelAllocate (
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IN XENBUS_PROTOCOL *This,
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IN domid_t DomainId,
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OUT evtchn_port_t *Port
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);
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/**
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Send an event to the remote end of the channel whose local endpoint is Port.
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@param This A pointer to the XENBUS_PROTOCOL.
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@param Port Local port to the event from.
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@retval UINT32 The return value from the hypercall, 0 if success.
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**/
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UINT32
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EFIAPI
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XenBusEventChannelNotify (
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IN XENBUS_PROTOCOL *This,
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IN evtchn_port_t Port
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);
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/**
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Close a local event channel Port.
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@param This A pointer to the XENBUS_PROTOCOL.
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@param Port The event channel to close.
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@retval UINT32 The return value from the hypercall, 0 if success.
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**/
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UINT32
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EFIAPI
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XenBusEventChannelClose (
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IN XENBUS_PROTOCOL *This,
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IN evtchn_port_t Port
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);
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#endif
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