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| ;-----------------------------------------------------------------------------
| ;
| ; Copyright (c) 2021, AMD. All rights reserved.<BR>
| ; SPDX-License-Identifier: BSD-2-Clause-Patent
| ;
| ;-----------------------------------------------------------------------------
|
| %include "Nasm.inc"
|
| SECTION .text
|
| ;-----------------------------------------------------------------------------
| ; UINT32
| ; EFIAPI
| ; AsmPvalidate (
| ; IN UINT32 PageSize
| ; IN UINT32 Validate,
| ; IN UINT64 Address
| ; )
| ;-----------------------------------------------------------------------------
| global ASM_PFX(AsmPvalidate)
| ASM_PFX(AsmPvalidate):
| mov rax, r8
|
| PVALIDATE
|
| ; Save the carry flag.
| setc dl
|
| ; The PVALIDATE instruction returns the status in rax register.
| cmp rax, 0
| jne PvalidateExit
|
| ; Check the carry flag to determine if RMP entry was updated.
| cmp dl, 0
| je PvalidateExit
|
| ; Return the PVALIDATE_RET_NO_RMPUPDATE.
| mov rax, 255
|
| PvalidateExit:
| ret
|
|
