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[efi] Import ARM64 ProcessorBind.h from EDK2 headers
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Signed-off-by: Michael Brown <[email protected]>
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mcb30 committed Nov 27, 2023
1 parent 5b20473 commit fc913e3
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241 changes: 241 additions & 0 deletions src/efi/AArch64/ProcessorBind.h
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/** @file
Processor or Compiler specific defines and types for AArch64.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/

#ifndef __PROCESSOR_BIND_H__
#define __PROCESSOR_BIND_H__

///
/// Define the processor type so other code can make processor based choices
///
#define MDE_CPU_AARCH64

//
// Make sure we are using the correct packing rules per EFI specification
//
#if !defined (__GNUC__) && !defined (__ASSEMBLER__)
#pragma pack()
#endif

#if defined (_MSC_EXTENSIONS)

//
// Disable some level 4 compilation warnings (same as IA32 and X64)
//

//
// Disabling bitfield type checking warnings.
//
#pragma warning ( disable : 4214 )

//
// Disabling the unreferenced formal parameter warnings.
//
#pragma warning ( disable : 4100 )

//
// Disable slightly different base types warning as CHAR8 * can not be set
// to a constant string.
//
#pragma warning ( disable : 4057 )

//
// ASSERT(FALSE) or while (TRUE) are legal constructs so suppress this warning
//
#pragma warning ( disable : 4127 )

//
// This warning is caused by functions defined but not used. For precompiled header only.
//
#pragma warning ( disable : 4505 )

//
// This warning is caused by empty (after preprocessing) source file. For precompiled header only.
//
#pragma warning ( disable : 4206 )

//
// Disable 'potentially uninitialized local variable X used' warnings
//
#pragma warning ( disable : 4701 )

//
// Disable 'potentially uninitialized local pointer variable X used' warnings
//
#pragma warning ( disable : 4703 )

//
// use Microsoft* C compiler dependent integer width types
//
typedef unsigned __int64 UINT64;
typedef __int64 INT64;
typedef unsigned __int32 UINT32;
typedef __int32 INT32;
typedef unsigned short UINT16;
typedef unsigned short CHAR16;
typedef short INT16;
typedef unsigned char BOOLEAN;
typedef unsigned char UINT8;
typedef char CHAR8;
typedef signed char INT8;

#else

//
// Assume standard AARCH64 alignment.
//
typedef unsigned long long UINT64;
typedef long long INT64;
typedef unsigned int UINT32;
typedef int INT32;
typedef unsigned short UINT16;
typedef unsigned short CHAR16;
typedef short INT16;
typedef unsigned char BOOLEAN;
typedef unsigned char UINT8;
typedef char CHAR8;
typedef signed char INT8;

#endif

///
/// Unsigned value of native width. (4 bytes on supported 32-bit processor instructions,
/// 8 bytes on supported 64-bit processor instructions)
///
typedef UINT64 UINTN;

///
/// Signed value of native width. (4 bytes on supported 32-bit processor instructions,
/// 8 bytes on supported 64-bit processor instructions)
///
typedef INT64 INTN;

//
// Processor specific defines
//

///
/// A value of native width with the highest bit set.
///
#define MAX_BIT 0x8000000000000000ULL

///
/// A value of native width with the two highest bits set.
///
#define MAX_2_BITS 0xC000000000000000ULL

///
/// Maximum legal AARCH64 address
///
#define MAX_ADDRESS 0xFFFFFFFFFFFFFFFFULL

///
/// Maximum usable address at boot time (48 bits using 4 KB pages)
///
#define MAX_ALLOC_ADDRESS 0xFFFFFFFFFFFFULL

///
/// Maximum legal AArch64 INTN and UINTN values.
///
#define MAX_INTN ((INTN)0x7FFFFFFFFFFFFFFFULL)
#define MAX_UINTN ((UINTN)0xFFFFFFFFFFFFFFFFULL)

///
/// Minimum legal AArch64 INTN value.
///
#define MIN_INTN (((INTN)-9223372036854775807LL) - 1)

///
/// The stack alignment required for AARCH64
///
#define CPU_STACK_ALIGNMENT 16

///
/// Page allocation granularity for AARCH64
///
#define DEFAULT_PAGE_ALLOCATION_GRANULARITY (0x1000)
#define RUNTIME_PAGE_ALLOCATION_GRANULARITY (0x10000)

//
// Modifier to ensure that all protocol member functions and EFI intrinsics
// use the correct C calling convention. All protocol member functions and
// EFI intrinsics are required to modify their member functions with EFIAPI.
//
#define EFIAPI

// When compiling with Clang, we still use GNU as for the assembler, so we still
// need to define the GCC_ASM* macros.
#if defined (__GNUC__) || defined (__clang__)
///
/// For GNU assembly code, .global or .globl can declare global symbols.
/// Define this macro to unify the usage.
///
#define ASM_GLOBAL .globl

#define GCC_ASM_EXPORT(func__) \
.global _CONCATENATE (__USER_LABEL_PREFIX__, func__) ;\
.type ASM_PFX(func__), %function

#define GCC_ASM_IMPORT(func__) \
.extern _CONCATENATE (__USER_LABEL_PREFIX__, func__)

#if defined (__ARM_FEATURE_BTI_DEFAULT) && __ARM_FEATURE_BTI_DEFAULT == 1
#define AARCH64_BTI_NOTE() \
.ifndef .Lgnu_bti_notesize ;\
.pushsection .note.gnu.property, "a" ;\
.set NT_GNU_PROPERTY_TYPE_0, 0x5 ;\
.set GNU_PROPERTY_AARCH64_FEATURE_1_AND, 0xc0000000 ;\
.set GNU_PROPERTY_AARCH64_FEATURE_1_BTI, 0x1 ;\
.align 3 ;\
.long .Lnamesize ;\
.long .Lgnu_bti_notesize ;\
.long NT_GNU_PROPERTY_TYPE_0 ;\
0: .asciz "GNU" ;\
.set .Lnamesize, . - 0b ;\
.align 3 ;\
1: .long GNU_PROPERTY_AARCH64_FEATURE_1_AND ;\
.long .Lvalsize ;\
2: .long GNU_PROPERTY_AARCH64_FEATURE_1_BTI ;\
.set .Lvalsize, . - 2b ;\
.align 3 ;\
.set .Lgnu_bti_notesize, . - 1b ;\
.popsection ;\
.endif

#define AARCH64_BTI(__type) \
AARCH64_BTI_NOTE() ;\
bti __type

#endif

#endif

#ifndef AARCH64_BTI
#define AARCH64_BTI_NOTE()
#define AARCH64_BTI(__type)
#endif

/**
Return the pointer to the first instruction of a function given a function pointer.
On ARM CPU architectures, these two pointer values are the same,
so the implementation of this macro is very simple.
@param FunctionPointer A pointer to a function.
@return The pointer to the first instruction of a function given a function pointer.
**/
#define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer)

#ifndef __USER_LABEL_PREFIX__
#define __USER_LABEL_PREFIX__
#endif

#endif
4 changes: 4 additions & 0 deletions src/efi/ProcessorBind.h
Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,10 @@ typedef uint8_t BOOLEAN;
#include <efi/X64/ProcessorBind.h>
#endif

#ifdef __aarch64__
#include <efi/AArch64/ProcessorBind.h>
#endif

#endif /* EFI_HOSTONLY */

#endif /* _WIMBOOT_EFI_PROCESSOR_BIND_H */

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