MmProfileData.h File Reference

Go to the source code of this file.

Macros
#define	MM_PROFILE_DATA_HOB_GUID
#define	MM_RESOURCE_ATTRIBUTE_LOGGING   0x10000000

Variables
EFI_GUID	gMmProfileDataHobGuid

Detailed Description

This file contains related definitions to support MM Profile feature in standalone MM.

Copyright (c) 2024, Intel Corporation. All rights reserved.

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

Definition in file MmProfileData.h.

Macro Definition Documentation

MM_PROFILE_DATA_HOB_GUID

#define MM_PROFILE_DATA_HOB_GUID

Value:

  { \
    0x26ef081d, 0x19b0, 0x4c42, {0xa2, 0x57, 0xa7, 0xf5, 0x9f, 0x8b, 0xd0, 0x38}  \
  }

This GUID is assigned to the Name field of EFI_HOB_MEMORY_ALLOCATION.AllocDescriptor. It signifies that the corresponding EFI_HOB_MEMORY_ALLOCATION HOB points to the location of MM Profile data. MM Profile is a feature designed to log accesses to non-MM regions by standalone MM. It stores these access logs within the MM Profile data.

Definition at line 19 of file MmProfileData.h.

MM_RESOURCE_ATTRIBUTE_LOGGING

#define MM_RESOURCE_ATTRIBUTE_LOGGING   0x10000000

In standalone MM, the policy for accessing non-MM regions is simplified: Non-MM regions and their access policies are specified by EFI_HOB_RESOURCE_DESCRIPTOR HOBs. Accesses to regions marked with the MM_RESOURCE_ATTRIBUTE_LOGGING attribute are permitted in standalone MM, and these accesses are logged in the MM Profile data. This attribute is not utilized by the SMM Profile feature in traditional SMM.

Definition at line 31 of file MmProfileData.h.