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| /** @file
| AsmReadPmc function
|
| Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
| SPDX-License-Identifier: BSD-2-Clause-Patent
|
| **/
|
| /**
| Reads the current value of a Performance Counter (PMC).
|
| Reads and returns the current value of performance counter specified by
| Index. This function is only available on IA-32 and x64.
|
| @param Index The 32-bit Performance Counter index to read.
|
| @return The value of the PMC specified by Index.
|
| **/
| UINT64
| EFIAPI
| AsmReadPmc (
| IN UINT32 Index
| )
| {
| _asm {
| mov ecx, Index
| rdpmc
| }
| }
|
|
|
