SecSnpSystemRamValidate.c File Reference

#include <Uefi/UefiBaseType.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/MemEncryptSevLib.h>
#include <Library/AmdSvsmLib.h>
#include "SnpPageStateChange.h"

Go to the source code of this file.

Functions
STATIC BOOLEAN	SevSnpIsVmpl0 (VOID)
VOID EFIAPI	MemEncryptSevSnpPreValidateSystemRam (IN PHYSICAL_ADDRESS BaseAddress, IN UINTN NumPages)

Variables
STATIC UINT8	gVmpl0Data [4096]

Detailed Description

SEV-SNP Page Validation functions.

Copyright (c) 2021 - 2024, AMD Incorporated. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SecSnpSystemRamValidate.c.

Function Documentation

MemEncryptSevSnpPreValidateSystemRam()

VOID EFIAPI MemEncryptSevSnpPreValidateSystemRam	(	IN PHYSICAL_ADDRESS	BaseAddress,
		IN UINTN	NumPages
	)

Pre-validate the system RAM when SEV-SNP is enabled in the guest VM.

Parameters

[in]	BaseAddress	Base address
[in]	NumPages	Number of pages starting from the base address

Definition at line 65 of file SecSnpSystemRamValidate.c.

SevSnpIsVmpl0()

STATIC BOOLEAN SevSnpIsVmpl0

(

VOID

)

The function checks whether SEV-SNP guest is booted under VMPL0.

Return values

TRUE	The guest is booted under VMPL0
FALSE	The guest is not booted under VMPL0

Definition at line 32 of file SecSnpSystemRamValidate.c.

Variable Documentation

gVmpl0Data

STATIC UINT8 gVmpl0Data[4096]

Definition at line 22 of file SecSnpSystemRamValidate.c.