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| ;------------------------------------------------------------------------------
| ;
| ; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
| ; SPDX-License-Identifier: BSD-2-Clause-Patent
| ;
| ; Module Name:
| ;
| ; DisableCache.Asm
| ;
| ; Abstract:
| ;
| ; Set the CD bit of CR0 to 1, clear the NW bit of CR0 to 0, and flush all caches with a
| ; WBINVD instruction.
| ;
| ; Notes:
| ;
| ;------------------------------------------------------------------------------
|
| DEFAULT REL
| SECTION .text
|
| ;------------------------------------------------------------------------------
| ; VOID
| ; EFIAPI
| ; AsmDisableCache (
| ; VOID
| ; );
| ;------------------------------------------------------------------------------
| global ASM_PFX(AsmDisableCache)
| ASM_PFX(AsmDisableCache):
| mov rax, cr0
| bts rax, 30
| btr rax, 29
| mov cr0, rax
| wbinvd
| ret
|
|
|
