| /** @file | |
| AsmEnableCache function | |
| Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| /** | |
| Perform a WBINVD and clear both the CD and NW bits of CR0. | |
| Enables the caches by executing a WBINVD instruction and then clear both the CD and NW | |
| bits of CR0 to 0. This function is only available on IA-32 and x64. | |
| **/ | |
| VOID | |
| EFIAPI | |
| AsmEnableCache ( | |
| VOID | |
| ) | |
| { | |
| _asm { | |
| wbinvd | |
| mov eax, cr0 | |
| btr eax, 30 | |
| btr eax, 29 | |
| mov cr0, eax | |
| } | |
| } |