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UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm
[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / ReadPmc.nasm
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1;------------------------------------------------------------------------------\r
2;\r
3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r
9344f092 4; SPDX-License-Identifier: BSD-2-Clause-Patent\r
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5;\r
6; Module Name:\r
7;\r
8; ReadPmc.Asm\r
9;\r
10; Abstract:\r
11;\r
12; AsmReadPmc function\r
13;\r
14; Notes:\r
15;\r
16;------------------------------------------------------------------------------\r
17\r
18 DEFAULT REL\r
19 SECTION .text\r
20\r
21;------------------------------------------------------------------------------\r
22; UINT64\r
23; EFIAPI\r
24; AsmReadPmc (\r
25; IN UINT32 PmcIndex\r
26; );\r
27;------------------------------------------------------------------------------\r
28global ASM_PFX(AsmReadPmc)\r
29ASM_PFX(AsmReadPmc):\r
30 rdpmc\r
31 shl rdx, 0x20\r
32 or rax, rdx\r
33 ret\r
34\r