mirror of https://github.com/acidanthera/audk.git
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/** @file
|
|
Internal ARCH Specific file of MM memory check library.
|
|
|
|
MM memory check library implementation. This library consumes MM_ACCESS_PROTOCOL
|
|
to get MMRAM information. In order to use this library instance, the platform should produce
|
|
all MMRAM range via MM_ACCESS_PROTOCOL, including the range for firmware (like MM Core
|
|
and MM driver) and/or specific dedicated hardware.
|
|
|
|
Copyright (c) 2015 - 2024, Intel Corporation. All rights reserved.<BR>
|
|
Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.<BR>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
#include "StandaloneMmMemLibInternal.h"
|
|
//
|
|
// Maximum support address used to check input buffer
|
|
//
|
|
extern EFI_PHYSICAL_ADDRESS mMmMemLibInternalMaximumSupportAddress;
|
|
|
|
/**
|
|
Calculate and save the maximum support address.
|
|
|
|
**/
|
|
VOID
|
|
MmMemLibCalculateMaximumSupportAddress (
|
|
VOID
|
|
)
|
|
{
|
|
mMmMemLibInternalMaximumSupportAddress = MAX_ALLOC_ADDRESS;
|
|
|
|
DEBUG ((DEBUG_INFO, "mMmMemLibInternalMaximumSupportAddress = 0x%lx\n", mMmMemLibInternalMaximumSupportAddress));
|
|
}
|
|
|
|
/**
|
|
Initialize valid non-Mmram Ranges from Resource HOB.
|
|
|
|
**/
|
|
VOID
|
|
MmMemLibInitializeValidNonMmramRanges (
|
|
VOID
|
|
)
|
|
{
|
|
// Not implemented for AARCH64.
|
|
}
|
|
|
|
/**
|
|
Deinitialize cached non-Mmram Ranges.
|
|
|
|
**/
|
|
VOID
|
|
MmMemLibFreeValidNonMmramRanges (
|
|
VOID
|
|
)
|
|
{
|
|
// Not implemented for AARCH64.
|
|
}
|
|
|
|
/**
|
|
This function check if the buffer is valid non-MMRAM memory range.
|
|
|
|
@param[in] Buffer The buffer start address to be checked.
|
|
@param[in] Length The buffer length to be checked.
|
|
|
|
@retval TRUE This buffer is valid non-MMRAM memory range.
|
|
@retval FALSE This buffer is not valid non-MMRAM memory range.
|
|
**/
|
|
BOOLEAN
|
|
MmMemLibIsValidNonMmramRange (
|
|
IN EFI_PHYSICAL_ADDRESS Buffer,
|
|
IN UINT64 Length
|
|
)
|
|
{
|
|
return TRUE;
|
|
}
|