f1259bba36
This first function is used to notify the other side that there is something to do. The other side is another Xen domain. Change in V4: - Replace the license by the commonly used file header text. Change in V3: - Return error code from hypercall instead of ASSERT for XenEventChannelNotify - moving event_channel.h to this patch. Change in V2: - file header - coding style - adding comment to functions - Licenses License: This patch adds event_channel.h which is under MIT licence. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Acked-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16265 6f19259b-4bc3-4df7-8a09-765794883524
34 lines
934 B
C
34 lines
934 B
C
/** @file
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Event Channel function implementation.
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Event channel are use to notify of an event that happend in a shared
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structure for example.
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Copyright (C) 2014, Citrix Ltd.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "EventChannel.h"
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#include "XenHypercall.h"
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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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INTN ReturnCode;
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evtchn_send_t Send;
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Send.port = Port;
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ReturnCode = XenHypercallEventChannelOp (Dev, EVTCHNOP_send, &Send);
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return ReturnCode;
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}
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