diff options
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c index c1efda7126..1b0b6673e1 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c @@ -1,7 +1,7 @@ /** @file
Enable SMM profile.
-Copyright (c) 2012 - 2019, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2012 - 2023, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2017 - 2020, AMD Incorporated. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -587,13 +587,18 @@ InitPaging ( }
SizeOfMemorySpace = HighBitSet64 (gPhyMask) + 1;
+ ASSERT (SizeOfMemorySpace <= 52);
+
//
- // Calculate the table entries of PML4E and PDPTE.
+ // Calculate the table entries of PML5E, PML4E and PDPTE.
//
NumberOfPml5Entries = 1;
if (SizeOfMemorySpace > 48) {
- NumberOfPml5Entries = (UINTN)LShiftU64 (1, SizeOfMemorySpace - 48);
- SizeOfMemorySpace = 48;
+ if (Enable5LevelPaging) {
+ NumberOfPml5Entries = (UINTN)LShiftU64 (1, SizeOfMemorySpace - 48);
+ }
+
+ SizeOfMemorySpace = 48;
}
NumberOfPml4Entries = 1;
|