diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X86Msr.c')
| -rw-r--r-- | MdePkg/Library/BaseLib/X86Msr.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/MdePkg/Library/BaseLib/X86Msr.c b/MdePkg/Library/BaseLib/X86Msr.c index 7ad3a2f15c08..408dea47ca75 100644 --- a/MdePkg/Library/BaseLib/X86Msr.c +++ b/MdePkg/Library/BaseLib/X86Msr.c @@ -1,14 +1,8 @@ /** @file IA-32/x64 MSR functions. - Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR> - This program and the accompanying materials - are licensed and made available under the terms and conditions of the BSD License - which accompanies this distribution. The full text of the license may be found at - http://opensource.org/licenses/bsd-license.php. - - THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent **/ @@ -196,8 +190,8 @@ AsmMsrBitFieldRead32 ( Writes Value to a bit field in the lower 32-bits of a 64-bit MSR. The bit field is specified by the StartBit and the EndBit. All other bits in the destination MSR are preserved. The lower 32-bits of the MSR written is - returned. The caller must either guarantee that Index and the data written - is valid, or the caller must set up exception handlers to catch the exceptions. + returned. The caller must either guarantee that Index and the data written + is valid, or the caller must set up exception handlers to catch the exceptions. This function is only available on IA-32 and x64. If StartBit is greater than 31, then ASSERT(). @@ -420,7 +414,7 @@ AsmMsrAnd64 ( } /** - Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise + Reads a 64-bit MSR, performs a bitwise AND followed by a bitwise OR, and writes the result back to the 64-bit MSR. Reads the 64-bit MSR specified by Index, performs a bitwise AND between read @@ -489,8 +483,8 @@ AsmMsrBitFieldRead64 ( Writes Value to a bit field in a 64-bit MSR. The bit field is specified by the StartBit and the EndBit. All other bits in the destination MSR are - preserved. The MSR written is returned. The caller must either guarantee - that Index and the data written is valid, or the caller must set up exception + preserved. The MSR written is returned. The caller must either guarantee + that Index and the data written is valid, or the caller must set up exception handlers to catch the exceptions. This function is only available on IA-32 and x64. If StartBit is greater than 63, then ASSERT(). |