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/** @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, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
//
// Maximum support address used to check input buffer
//
extern EFI_PHYSICAL_ADDRESS mMmMemLibInternalMaximumSupportAddress;
/**
Calculate and save the maximum support address.
**/
VOID
MmMemLibInternalCalculateMaximumSupportAddress (
VOID
)
{
UINT8 PhysicalAddressBits;
PhysicalAddressBits = 36;
//
// Save the maximum support address in one global variable
//
mMmMemLibInternalMaximumSupportAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)(LShiftU64 (1, PhysicalAddressBits) - 1);
DEBUG ((DEBUG_INFO, "mMmMemLibInternalMaximumSupportAddress = 0x%lx\n", mMmMemLibInternalMaximumSupportAddress));
}
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