Last change
on this file since 58464 was 58464, checked in by vboxsync, 9 years ago |
EFI/Firmware: Export new files and directories.
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1 | /** @file
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2 |
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3 | Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
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4 | This program and the accompanying materials
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5 | are licensed and made available under the terms and conditions of the BSD License
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6 | which accompanies this distribution. The full text of the license may be found at
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7 | http://opensource.org/licenses/bsd-license.php.
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8 |
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9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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11 |
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12 | **/
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13 |
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14 | #include <Base.h>
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15 | #include <Library/BaseLib.h>
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16 | #include <Library/FspCommonLib.h>
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17 |
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18 | /**
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19 |
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20 | Switch the current stack to the previous saved stack.
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21 |
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22 | @param[in] NewStack The new stack to be switched.
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23 |
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24 | @return OldStack After switching to the saved stack,
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25 | this value will be saved in eax before returning.
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26 |
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27 |
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28 | **/
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29 | UINT32
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30 | SwapStack (
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31 | IN UINT32 NewStack
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32 | )
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33 | {
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34 | FSP_GLOBAL_DATA *FspData;
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35 | UINT32 OldStack;
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36 |
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37 | FspData = GetFspGlobalDataPointer ();
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38 | OldStack = FspData->CoreStack;
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39 | FspData->CoreStack = NewStack;
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40 | return OldStack;
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41 | }
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42 |
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