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audk/OvmfPkg/Include/IndustryStandard/Xen/io/xenbus.h

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OvmfPkg: Add public headers from Xen Project. This patch imports publics headers in order to use features from Xen like XenStore, PV Block... There is only the necessary header files and there are only a few modifications in order to facilitate future merge of more recent header (that would be necessary to access new features). There is little modification compared to the original files: - Removed most of the unused part of the headers - Use of ZeroMem() instead of memset() - using #pragma pack(4) for IA32 compilation. - Replace types to be more UEFI compliant using a script. OVMF, when built for IA32 arch, uses the gcc switch -malign-double. This change the alignment of fields in some struct compare to what is espected by Xen and any backends. To fix the alignment, the #pragma pack(4) directive is used around the struct that need it. Command to run to change types: find OvmfPkg/Include/IndustryStandard/Xen -type f -name '*.h' -exec sed --regexp-extended --file=fix_type_in_xen_includes.sed --in-place {} \; Avoid changing the 'long' that is not a type (with the first line). $ cat fix_type_in_xen_includes.sed /as long as/b s/([^a-zA-Z0-9_]|^)uint8_t([^a-zA-Z0-9_]|$)/\1UINT8\2/g s/([^a-zA-Z0-9_]|^)uint16_t([^a-zA-Z0-9_]|$)/\1UINT16\2/g s/([^a-zA-Z0-9_]|^)uint32_t([^a-zA-Z0-9_]|$)/\1UINT32\2/g s/([^a-zA-Z0-9_]|^)uint64_t([^a-zA-Z0-9_]|$)/\1UINT64\2/g s/([^a-zA-Z0-9_]|^)int8_t([^a-zA-Z0-9_]|$)/\1INT8\2/g s/([^a-zA-Z0-9_]|^)int16_t([^a-zA-Z0-9_]|$)/\1INT16\2/g s/([^a-zA-Z0-9_]|^)int32_t([^a-zA-Z0-9_]|$)/\1INT32\2/g s/([^a-zA-Z0-9_]|^)int64_t([^a-zA-Z0-9_]|$)/\1INT64\2/g s/([^a-zA-Z0-9_]|^)void([^a-zA-Z0-9_]|$)/\1VOID\2/g s/([^a-zA-Z0-9_]|^)unsigned int([^a-zA-Z0-9_]|$)/\1UINT32\2/g s/([^a-zA-Z0-9_]|^)int([^a-zA-Z0-9_]|$)/\1INT32\2/g s/([^a-zA-Z0-9_]|^)unsigned char([^a-zA-Z0-9_]|$)/\1UINT8\2/g s/([^a-zA-Z0-9_]|^)char([^a-zA-Z0-9_]|$)/\1CHAR8\2/g s/([^a-zA-Z0-9_]|^)unsigned long([^a-zA-Z0-9_]|$)/\1UINTN\2/g s/([^a-zA-Z0-9_]|^)long([^a-zA-Z0-9_]|$)/\1INTN\2/g Change in V4: - Add a README in Xen headers directory to explain what have been done to it. It is mostly a copy/past from the commit description with some rewording. - replace unsigned char by UINT8 as there is no unsigned char in UEFI types. Change in V3: - Remove unused header sched.h - moving xs_wire.h in a later patch, where it's first needed - moving io/blkif.h in a later patch (XenPvBlkDxe: Add BlockFront client) - moving event_channel.h in a later patch (XenBusDxe: Add Event Channel Notify) - using #pragma pack(4) for IA32 - headers trimed down, removed most of the unused struct/define/... License: This patch adds many files under the 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@16257 6f19259b-4bc3-4df7-8a09-765794883524
2014-10-29 07:48:29 +01:00
/*****************************************************************************
* xenbus.h
*
* Xenbus protocol details.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) 2005 XenSource Ltd.
*/
#ifndef _XEN_PUBLIC_IO_XENBUS_H
#define _XEN_PUBLIC_IO_XENBUS_H
/*
* The state of either end of the Xenbus, i.e. the current communication
* status of initialisation across the bus. States here imply nothing about
* the state of the connection between the driver and the kernel's device
* layers.
*/
enum xenbus_state {
XenbusStateUnknown = 0,
XenbusStateInitialising = 1,
/*
* InitWait: Finished early initialisation but waiting for information
* from the peer or hotplug scripts.
*/
XenbusStateInitWait = 2,
/*
* Initialised: Waiting for a connection from the peer.
*/
XenbusStateInitialised = 3,
XenbusStateConnected = 4,
/*
* Closing: The device is being closed due to an error or an unplug event.
*/
XenbusStateClosing = 5,
XenbusStateClosed = 6,
/*
* Reconfiguring: The device is being reconfigured.
*/
XenbusStateReconfiguring = 7,
XenbusStateReconfigured = 8
};
typedef enum xenbus_state XenbusState;
#endif /* _XEN_PUBLIC_IO_XENBUS_H */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/