tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

UefiCpuPkg/PiSmmCpuDxeSmm: Refine casting result to bigger size 

The commit is a follow-up of commit 8491e30.

In file MpService.c line 786:
Pte[Index] = (UINT64)((UINTN)PageTable + EFI_PAGE_SIZE * (Index + 1)) |
mAddressEncMask ...

(Where PageTable is of type VOID*, Index is of type UINTN, mAddressEncMask
is of type UINT64 and Pte[Index] is of type UINT64.)

Since in this case, the code logic ensures that the expression will not
exceed the range of UINTN, the commit will remove the explicit type cast
'(UINT64)'.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
This commit is contained in:
Hao Wu 2017-03-07 09:00:48 +08:00
parent 7babb4372e
commit e62a0eb61b
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
View File

@ -1,7 +1,7 @@
/** @file
SMM MP service implementation
Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
This program and the accompanying materials
@ -783,7 +783,7 @@ Gen4GPageTable (
// Set Page Directory Pointers
//
for (Index = 0; Index < 4; Index++) {
Pte[Index] = (UINT64)((UINTN)PageTable + EFI_PAGE_SIZE * (Index + 1)) | mAddressEncMask |
Pte[Index] = ((UINTN)PageTable + EFI_PAGE_SIZE * (Index + 1)) | mAddressEncMask |
(Is32BitPageTable ? IA32_PAE_PDPTE_ATTRIBUTE_BITS : PAGE_ATTRIBUTE_BITS);
}
Pte += EFI_PAGE_SIZE / sizeof (*Pte);