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internal commit: 14ac2bc2299032fa6714d1fefa7cf0987b3e3085

Signed-off-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Eddie Dong
2018-03-07 20:57:14 +08:00
committed by lijinxia
parent bd31b1c53e
commit 7a3a539b17
156 changed files with 41265 additions and 0 deletions
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hypervisor/include/lib/util.h Normal file
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/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef UTIL_H
#define UTIL_H
/** Add an offset (in bytes) to an (base)address.
*
* @param addr Baseaddress
* @param off Offset
* @return Returns baseaddress + offset in bytes.
*/
#define ADD_OFFSET(addr, off) (void *)(((uint8_t *)(addr))+(off))
#define offsetof(st, m) __builtin_offsetof(st, m)
/** Round an integer (x) up to a multiple of y */
#define INT_ROUNDUP(x, y) (((x)+((y)-1))&-(y))
/** Round an integer up to a multiple of 4 */
#define INT_ROUNDUP4(x) INT_ROUNDUP(x, 4)
/** Round an integer up to a multiple of 8 */
#define INT_ROUNDUP8(x) INT_ROUNDUP(x, 8)
/** Round an integer up to a multiple of 8 */
#define INT_ROUNDUP16(x) INT_ROUNDUP(x, 16)
/** Roundup (x/y) to ( x/y + (x%y) ? 1 : 0) **/
#define INT_DIV_ROUNDUP(x, y) (((x)+(y)-1)/(y))
#endif /* UTIL_H */