2007-06-28 09:00:39 +02:00
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TITLE Cpu.asm: Assembly code for the x64 resources
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;------------------------------------------------------------------------------
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;*
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2010-04-28 14:14:56 +02:00
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;* Copyright (c) 2005 - 2007, Intel Corporation. All rights reserved.<BR>
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;* This program and the accompanying materials
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2007-06-28 09:00:39 +02:00
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;* are licensed and made available under the terms and conditions of the BSD License
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;* which accompanies this distribution. The full text of the license may be found at
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;* http://opensource.org/licenses/bsd-license.php
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;*
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;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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;*
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;* Module Name:
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;*
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;* Cpu.asm
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;*
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;* Abstract:
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;*
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;------------------------------------------------------------------------------
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text SEGMENT
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;------------------------------------------------------------------------------
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; VOID
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; EfiHalt (
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; VOID
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; )
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;------------------------------------------------------------------------------
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EfiHalt PROC PUBLIC
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hlt
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ret
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EfiHalt ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiWbinvd (
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; VOID
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; )
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;------------------------------------------------------------------------------
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EfiWbinvd PROC PUBLIC
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wbinvd
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ret
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EfiWbinvd ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiInvd (
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; VOID
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; )
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;------------------------------------------------------------------------------
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EfiInvd PROC PUBLIC
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invd
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ret
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EfiInvd ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiCpuid (
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; IN UINT32 RegisterInEax, // rcx
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; OUT EFI_CPUID_REGISTER *Reg OPTIONAL // rdx
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; )
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;------------------------------------------------------------------------------
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EfiCpuid PROC PUBLIC
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push rbx
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mov r8, rdx ; r8 = *Reg
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mov rax, rcx ; RegisterInEax
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cpuid
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cmp r8, 0
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je _Exit
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mov [r8 + 0], eax ; Reg->RegEax
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mov [r8 + 4], ebx ; Reg->RegEbx
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mov [r8 + 8], ecx ; Reg->RegEcx
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mov [r8 + 12], edx ; Reg->RegEdx
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_Exit:
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pop rbx
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ret
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EfiCpuid ENDP
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;------------------------------------------------------------------------------
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; UINT64
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; EfiReadMsr (
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; IN UINT32 Index, // rcx
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; )
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;------------------------------------------------------------------------------
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EfiReadMsr PROC PUBLIC
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rdmsr
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sal rdx, 32 ; edx:eax -> rax
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or rax, rdx ; rax = edx:eax
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ret
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EfiReadMsr ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiWriteMsr (
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; IN UINT32 Index, // rcx
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; IN UINT64 Value // rdx
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; )
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;------------------------------------------------------------------------------
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EfiWriteMsr PROC PUBLIC
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mov rax, rdx ; rdx = Value
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sar rdx, 32 ; convert rdx to edx upper 32-bits
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wrmsr ; wrmsr[ecx] result = edx:eax
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ret
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EfiWriteMsr ENDP
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;------------------------------------------------------------------------------
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; UINT64
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; EfiReadTsc (
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; VOID
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; );
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;------------------------------------------------------------------------------
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EfiReadTsc PROC PUBLIC
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rdtsc
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shl rax, 32
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shrd rax, rdx, 32
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ret
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EfiReadTsc ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiDisableCache (
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; VOID
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; );
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;------------------------------------------------------------------------------
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EfiDisableCache PROC PUBLIC
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; added a check to see if cache is already disabled. If it is, then skip.
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mov rax, cr0
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and rax, 060000000h
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cmp rax, 0
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jne @f
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mov rax, cr0
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or rax, 060000000h
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mov cr0, rax
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1) Sync EdkCompatibilityPkg with EDK 1.04. The changes includes:
1.1) Bug fixes. (For details, please check Documents & files: Snapshot/Release Notes at https://edk.tianocore.org/servlets/ProjectDocumentList?folderID=43&expandFolder=43&folderID=6)
1.2) Add new UEFI protocol definitions for AbsolutePointer, FormBrowser2, HiiConfigAccess, HiiConfigRouting, HiiDatabase, HiiFont, HiiImage, HiiString, SimpleTextInputEx, DPC protocol.
1.3) Add Smbios 2.5, 2.6 supports.
Incompatible changes hilighted:
1) EFI_MANAGED_NETWORK_PROTOCOL_GUID changed.
2) EFI_IP4_IPCONFIG_DATA changed.
2) Add in EdkCompatibilityPkg/EdkCompatibilityPkg.dsc to build all libraries in this package.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4622 6f19259b-4bc3-4df7-8a09-765794883524
2008-01-24 07:37:35 +01:00
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wbinvd
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2007-06-28 09:00:39 +02:00
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@@:
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ret
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EfiDisableCache ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiEnableCache (
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; VOID
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; );
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;------------------------------------------------------------------------------
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EfiEnableCache PROC PUBLIC
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invd
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mov rax, cr0
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and rax, 09fffffffh
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mov cr0, rax
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ret
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EfiEnableCache ENDP
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;------------------------------------------------------------------------------
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; UINTN
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; EfiGetEflags (
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; VOID
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; );
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;------------------------------------------------------------------------------
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EfiGetEflags PROC PUBLIC
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pushfq
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pop rax
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ret
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EfiGetEflags ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiDisableInterrupts (
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; VOID
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; );
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;------------------------------------------------------------------------------
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EfiDisableInterrupts PROC PUBLIC
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cli
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ret
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EfiDisableInterrupts ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiEnableInterrupts (
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; VOID
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; );
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;------------------------------------------------------------------------------
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EfiEnableInterrupts PROC PUBLIC
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sti
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ret
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EfiEnableInterrupts ENDP
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;------------------------------------------------------------------------------
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; VOID
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; EfiCpuidExt (
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; IN UINT32 RegisterInEax,
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; IN UINT32 CacheLevel,
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; OUT EFI_CPUID_REGISTER *Regs
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; )
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;------------------------------------------------------------------------------
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EfiCpuidExt PROC PUBLIC
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push rbx
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mov rax, rcx ; rax = RegisterInEax
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mov rcx, rdx ; rcx = CacheLevel
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cpuid
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mov [r8 + 0 ], eax ; Reg->RegEax
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mov [r8 + 4 ], ebx ; Reg->RegEbx
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mov [r8 + 8 ], ecx ; Reg->RegEcx
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mov [r8 + 12], edx ; Reg->RegEdx
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pop rbx
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ret
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EfiCpuidExt ENDP
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END
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