diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/Library/CpuIA32Lib/IA32/CpuIA32.asm')
| -rw-r--r-- | Vlv2TbltDevicePkg/Library/CpuIA32Lib/IA32/CpuIA32.asm | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Library/CpuIA32Lib/IA32/CpuIA32.asm b/Vlv2TbltDevicePkg/Library/CpuIA32Lib/IA32/CpuIA32.asm new file mode 100644 index 0000000000..2abef79be1 --- /dev/null +++ b/Vlv2TbltDevicePkg/Library/CpuIA32Lib/IA32/CpuIA32.asm @@ -0,0 +1,211 @@ +;
+; This file contains an 'Intel Sample Driver' and is
+; licensed for Intel CPUs and chipsets under the terms of your
+; license agreement with Intel or your vendor. This file may
+; be modified by the user, subject to additional terms of the
+; license agreement
+;
+;
+; Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
+;
+; This program and the accompanying materials are licensed and made available under
+; the terms and conditions of the BSD License that 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.
+;
+;
+
+;Module Name:
+;
+; CpuIA32.c
+;
+;Abstract:
+;
+;--*/
+
+;#include "CpuIA32.h"
+
+;---------------------------------------------------------------------------
+ .586p
+ .model flat,C
+ .code
+
+;---------------------------------------------------------------------------
+;VOID
+;EfiHalt (
+; VOID
+;)
+EfiHalt PROC C PUBLIC
+ hlt
+ ret
+EfiHalt ENDP
+
+;VOID
+;EfiWbinvd (
+; VOID
+;)
+EfiWbinvd PROC C PUBLIC
+ wbinvd
+ ret
+EfiWbinvd ENDP
+
+;VOID
+;EfiInvd (
+; VOID
+;)
+EfiInvd PROC C PUBLIC
+ invd
+ ret
+EfiInvd ENDP
+
+;VOID
+;EfiCpuid (IN UINT32 RegisterInEax,
+; OUT EFI_CPUID_REGISTER *Reg OPTIONAL)
+EfiCpuid PROC C PUBLIC
+ push ebp
+ mov ebp, esp
+ push ebx
+ push esi
+ push edi
+ pushad
+
+ mov eax, dword ptr[ebp + 8] ;egisterInEax
+ cpuid
+ cmp dword ptr[ebp + 0Ch], 0 ; Reg
+ je @F
+ mov edi,dword ptr [ebp+0Ch] ; Reg
+
+ mov dword ptr [edi],eax ; Reg->RegEax
+ mov dword ptr [edi+4],ebx ; Reg->RegEbx
+ mov dword ptr [edi+8],ecx ; Reg->RegEcx
+ mov dword ptr [edi+0Ch],edx ; Reg->RegEdx
+
+@@:
+ popad
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+
+ ret
+EfiCpuid ENDP
+
+
+;UINT64
+;EfiReadMsr (
+; IN UINT32 Index
+; );
+EfiReadMsr PROC C PUBLIC
+ mov ecx, dword ptr [esp + 4]; Index
+ rdmsr
+ ret
+EfiReadMsr ENDP
+
+;VOID
+;EfiWriteMsr (
+; IN UINT32 Index,
+; IN UINT64 Value
+; );
+EfiWriteMsr PROC C PUBLIC
+ mov ecx, dword ptr [esp+4]; Index
+ mov eax, dword ptr [esp+8]; DWORD PTR Value[0]
+ mov edx, dword ptr [esp+0Ch]; DWORD PTR Value[4]
+ wrmsr
+ ret
+EfiWriteMsr ENDP
+
+;UINT64
+;EfiReadTsc (
+; VOID
+; )
+EfiReadTsc PROC C PUBLIC
+ rdtsc
+ ret
+EfiReadTsc ENDP
+
+;VOID
+;EfiDisableCache (
+; VOID
+;)
+EfiDisableCache PROC C PUBLIC
+ mov eax, cr0
+ bswap eax
+ and al, 60h
+ cmp al, 60h
+ je @F
+ mov eax, cr0
+ or eax, 060000000h
+ mov cr0, eax
+ wbinvd
+@@:
+ ret
+EfiDisableCache ENDP
+
+;VOID
+;EfiEnableCache (
+; VOID
+; )
+EfiEnableCache PROC C PUBLIC
+ wbinvd
+ mov eax, cr0
+ and eax, 09fffffffh
+ mov cr0, eax
+ ret
+EfiEnableCache ENDP
+
+;UINT32
+;EfiGetEflags (
+; VOID
+; )
+EfiGetEflags PROC C PUBLIC
+ pushfd
+ pop eax
+ ret
+EfiGetEflags ENDP
+
+;VOID
+;EfiDisableInterrupts (
+; VOID
+; )
+EfiDisableInterrupts PROC C PUBLIC
+ cli
+ ret
+EfiDisableInterrupts ENDP
+
+;VOID
+;EfiEnableInterrupts (
+; VOID
+; )
+EfiEnableInterrupts PROC C PUBLIC
+ sti
+ ret
+EfiEnableInterrupts ENDP
+
+;VOID
+;EfiCpuidExt (
+; IN UINT32 RegisterInEax,
+; IN UINT32 CacheLevel,
+; OUT EFI_CPUID_REGISTER *Regs
+; )
+EfiCpuidExt PROC C PUBLIC USES ebx edi esi
+ pushad
+
+ mov eax, dword ptr [esp + 30h] ; RegisterInEax
+ mov ecx, dword ptr [esp + 34h] ; CacheLevel
+ cpuid
+ mov edi, dword ptr [esp + 38h] ; DWORD PTR Regs
+
+ mov dword ptr [edi], eax ; Reg->RegEax
+ mov dword ptr [edi + 4], ebx ; Reg->RegEbx
+ mov dword ptr [edi + 8], ecx ; Reg->RegEcx
+ mov dword ptr [edi + 0Ch], edx ; Reg->RegEdx
+
+ popad
+ ret
+EfiCpuidExt ENDP
+
+ END
+
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