mirror of https://github.com/acidanthera/audk.git
ArmPlatformPkg/ArmSmcLib: Added helper library to make SMC call to the Secure World
This library adds C-wrapper around the SMC instruction and allows to pass parameters to the Secure World. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13133 6f19259b-4bc3-4df7-8a09-765794883524
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oliviermartin
parent
a12da33bc1
commit
eac42a514b
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/** @file
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*
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* Copyright (c) 2012, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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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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**/
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#ifndef __ARM_SMC_LIB__
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#define __ARM_SMC_LIB__
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VOID
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ArmCallSmc (
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IN OUT UINTN *Rx
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);
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VOID
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ArmCallSmcArg1 (
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IN OUT UINTN *Rx,
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IN OUT UINTN *Arg1
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);
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VOID
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ArmCallSmcArg2 (
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IN OUT UINTN *Rx,
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IN OUT UINTN *Arg1,
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IN OUT UINTN *Arg2
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);
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VOID
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ArmCallSmcArg3 (
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IN OUT UINTN *Rx,
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IN OUT UINTN *Arg1,
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IN OUT UINTN *Arg2,
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IN OUT UINTN *Arg3
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);
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#endif
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//
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// Copyright (c) 2012, ARM Limited. All rights reserved.
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//
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// This program and the accompanying materials
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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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//
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.text
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.align 3
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.arch_extension sec
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GCC_ASM_EXPORT(ArmCallSmc)
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GCC_ASM_EXPORT(ArmCallSmcArg1)
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GCC_ASM_EXPORT(ArmCallSmcArg2)
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GCC_ASM_EXPORT(ArmCallSmcArg3)
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ASM_PFX(ArmCallSmc):
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push {r1}
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mov r1, r0
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ldr r0,[r1]
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smc #0
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str r0,[r1]
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pop {r1}
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blx lr
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// Arg1 in R1
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ASM_PFX(ArmCallSmcArg1):
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push {r2-r3}
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mov r2, r0
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mov r3, r1
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ldr r0,[r2]
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ldr r1,[r3]
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smc #0
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str r0,[r2]
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str r1,[r3]
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pop {r2-r3}
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blx lr
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ASM_PFX(ArmCallSmcArg2):
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push {r3-r5}
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mov r3, r0
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mov r4, r1
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mov r5, r2
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ldr r0,[r3]
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ldr r1,[r4]
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ldr r2,[r5]
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smc #0
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str r0,[r3]
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str r1,[r4]
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str r2,[r5]
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pop {r3-r5}
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blx lr
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ASM_PFX(ArmCallSmcArg3):
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push {r4-r7}
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mov r4, r0
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mov r5, r1
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mov r6, r2
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mov r7, r3
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ldr r0,[r4]
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ldr r1,[r5]
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ldr r2,[r6]
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ldr r3,[r7]
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smc #0
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str r0,[r4]
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str r1,[r5]
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str r2,[r6]
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str r3,[r7]
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pop {r4-r7}
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blx lr
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//
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// Copyright (c) 2012, ARM Limited. All rights reserved.
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//
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// This program and the accompanying materials
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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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//
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EXPORT ArmCallSmc
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EXPORT ArmCallSmcArg1
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EXPORT ArmCallSmcArg2
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EXPORT ArmCallSmcArg3
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AREA ArmSmc, CODE, READONLY
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ArmCallSmc
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push {r1}
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mov r1, r0
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ldr r0,[r1]
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smc #0
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str r0,[r1]
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pop {r1}
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blx lr
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// Arg1 in R1
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ArmCallSmcArg1
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push {r2-r3}
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mov r2, r0
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mov r3, r1
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ldr r0,[r2]
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ldr r1,[r3]
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smc #0
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str r0,[r2]
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str r1,[r3]
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pop {r2-r3}
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blx lr
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ArmCallSmcArg2
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push {r3-r5}
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mov r3, r0
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mov r4, r1
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mov r5, r2
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ldr r0,[r3]
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ldr r1,[r4]
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ldr r2,[r5]
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smc #0
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str r0,[r3]
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str r1,[r4]
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str r2,[r5]
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pop {r3-r5}
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blx lr
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ArmCallSmcArg3
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push {r4-r7}
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mov r4, r0
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mov r5, r1
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mov r6, r2
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mov r7, r3
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ldr r0,[r4]
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ldr r1,[r5]
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ldr r2,[r6]
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ldr r3,[r7]
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smc #0
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str r0,[r4]
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str r1,[r5]
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str r2,[r6]
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str r3,[r7]
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pop {r4-r7}
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blx lr
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END
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@ -0,0 +1,28 @@
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#/** @file
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#
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# Copyright (c) 2012, ARM Ltd. All rights reserved.<BR>
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# This program and the accompanying materials
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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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#**/
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = ArmSmcLib
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FILE_GUID = eb3f17d5-a3cc-4eac-8912-84162d0f79da
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = ArmSmcLib
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[Sources.common]
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ArmSmc.asm | RVCT
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ArmSmc.S | GCC
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[Packages]
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MdePkg/MdePkg.dec
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ArmPlatformPkg/ArmPlatformPkg.dec
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