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kernel: add aarch64 architecture support

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Signed-off-by: EnderIce2 <enderice2@protonmail.com>
This commit is contained in:
EnderIce2
2025-01-10 17:26:26 +02:00
parent 07abdd9f6c
commit e6933acfb0
62 changed files with 1009 additions and 299 deletions
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64
Kernel/include/cpu.hpp
View File

@ -163,8 +163,6 @@ namespace CPU
"jmp CPUStopLoop");
#elif defined(__aarch64__)
asmv("CPUStopLoop:\n"
"cpsid i\n"
"wfe\n"
"wfi\n"
"b CPUStopLoop");
#endif
@ -1078,44 +1076,32 @@ namespace CPU
{
struct TrapFrame
{
uint64_t x0; // General purpose
uint64_t x1; // General purpose
uint64_t x2; // General purpose
uint64_t x3; // General purpose
uint64_t x4; // General purpose
uint64_t x5; // General purpose
uint64_t x6; // General purpose
uint64_t x7; // General purpose
uint64_t x8; // General purpose
uint64_t x9; // General purpose
uint64_t x10; // General purpose
uint64_t x11; // General purpose
uint64_t x12; // General purpose
uint64_t x13; // General purpose
uint64_t x14; // General purpose
uint64_t x15; // General purpose
uint64_t x16; // General purpose
uint64_t x17; // General purpose
uint64_t x18; // General purpose
uint64_t x19; // General purpose
uint64_t x20; // General purpose
uint64_t x21; // General purpose
uint64_t x22; // General purpose
uint64_t x23; // General purpose
uint64_t x24; // General purpose
uint64_t x25; // General purpose
uint64_t x26; // General purpose
uint64_t x27; // General purpose
uint64_t x28; // General purpose
uint64_t x[31];
uint64_t SP; /* Stack Pointer */
uint64_t ELR; /* Exception Link Register */
uint64_t ESR; /* Exception Syndrome Register */
uint64_t FAR; /* Fault Address Register */
uint64_t SPSR; /* Saved Program Status Register */
};
uint64_t fp; // Frame Pointer (meant for stack frames)
uint64_t lr; // Link Register
struct SchedulerFrame
{
uint64_t x[31];
uint64_t SP; /* Stack Pointer */
uint64_t ELR; /* Exception Link Register */
uint64_t ESR; /* Exception Syndrome Register */
uint64_t FAR; /* Fault Address Register */
uint64_t SPSR; /* Saved Program Status Register */
};
uint64_t sp; // Stack Pointer
uint64_t pc; // Program Counter
uint64_t pstate; // Processor State (flags)
uint64_t esr; // Exception Syndrome Register
uint64_t far; // Fault Address Register
struct ExceptionFrame
{
uint64_t x[31];
uint64_t SP; /* Stack Pointer */
uint64_t ELR; /* Exception Link Register */
uint64_t ESR; /* Exception Syndrome Register */
uint64_t FAR; /* Fault Address Register */
uint64_t SPSR; /* Saved Program Status Register */
};
}
@ -1145,7 +1131,7 @@ namespace CPU
*/
typedef aarch64::TrapFrame TrapFrame;
typedef aarch64::SchedulerFrame SchedulerFrame;
typedef aarch64::TrapFrame ExceptionFrame;
typedef aarch64::ExceptionFrame ExceptionFrame;
#endif
}

2
Kernel/include/cpu/x86/cpuid_amd.hpp
View File

@ -55,13 +55,11 @@ typedef uint64_t cpuid_t;
#define __amd_cpuid_init(leaf) \
CPUID##leaf() \
{ \
assert(!"cpuid not implemented for this architecture"); \
}
#define __amd_cpuid_init2(leaf, leaf2, suffix) \
CPUID##leaf##suffix() \
{ \
assert(!"cpuid not implemented for this architecture"); \
}
#endif

2
Kernel/include/cpu/x86/cpuid_intel.hpp
View File

@ -55,13 +55,11 @@ typedef uint64_t cpuid_t;
#define __intel_cpuid_init(leaf) \
CPUID##leaf() \
{ \
assert(!"cpuid not implemented for this architecture"); \
}
#define __intel_cpuid_init2(leaf, leaf2, suffix) \
CPUID##leaf##suffix() \
{ \
assert(!"cpuid not implemented for this architecture"); \
}
#endif

78
Kernel/include/interface/syscalls.h
View File

@ -40,6 +40,15 @@ static inline scarg syscall0(scarg syscall)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0");
__asm__ __volatile__("svc 0"
: "=r"(x0)
: "r"(x8)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -65,6 +74,15 @@ static inline scarg syscall1(scarg syscall, scarg arg1)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -91,6 +109,16 @@ static inline scarg syscall2(scarg syscall, scarg arg1, scarg arg2)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -118,6 +146,17 @@ static inline scarg syscall3(scarg syscall, scarg arg1, scarg arg2, scarg arg3)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -147,6 +186,18 @@ static inline scarg syscall4(scarg syscall, scarg arg1, scarg arg2, scarg arg3,
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
register long x3 __asm__("x3") = arg4;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -178,6 +229,19 @@ static inline scarg syscall5(scarg syscall, scarg arg1, scarg arg2, scarg arg3,
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
register long x3 __asm__("x3") = arg4;
register long x4 __asm__("x4") = arg5;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -211,6 +275,20 @@ static inline scarg syscall6(scarg syscall, scarg arg1, scarg arg2, scarg arg3,
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
register long x3 __asm__("x3") = arg4;
register long x4 __asm__("x4") = arg5;
register long x5 __asm__("x5") = arg6;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4), "r"(x5)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif

23
Kernel/include/syscalls.hpp
View File

@ -60,8 +60,13 @@ typedef struct SyscallsFrame
uint32_t StackPointer;
uint32_t StackSegment;
#elif defined(__aarch64__)
uint32_t ReturnAddress;
uint32_t StackPointer;
uint64_t ReturnAddress; /* x0 */
uint64_t x[30];
uint64_t StackPointer;
uint64_t ExceptionLinkRegister;
uint64_t ExceptionSyndromeRegister;
uint64_t FaultAddressRegister;
uint64_t SavedProgramStatusRegister;
#endif
uintptr_t ReturnValue() const
@ -71,7 +76,7 @@ typedef struct SyscallsFrame
#elif defined(__i386__)
return ax;
#elif defined(__aarch64__)
return x0;
return x[0];
#endif
}
@ -82,7 +87,7 @@ typedef struct SyscallsFrame
#elif defined(__i386__)
return di;
#elif defined(__aarch64__)
return x0;
return x[0];
#endif
}
@ -93,7 +98,7 @@ typedef struct SyscallsFrame
#elif defined(__i386__)
return cx;
#elif defined(__aarch64__)
return x1;
return x[1];
#endif
}
@ -104,7 +109,7 @@ typedef struct SyscallsFrame
#elif defined(__i386__)
return dx;
#elif defined(__aarch64__)
return x2;
return x[2];
#endif
}
@ -115,7 +120,7 @@ typedef struct SyscallsFrame
#elif defined(__i386__)
return si;
#elif defined(__aarch64__)
return x3;
return x[3];
#endif
}
@ -126,7 +131,7 @@ typedef struct SyscallsFrame
#elif defined(__i386__)
return di;
#elif defined(__aarch64__)
return x4;
return x[4];
#endif
}
@ -137,7 +142,7 @@ typedef struct SyscallsFrame
#elif defined(__i386__)
return bp;
#elif defined(__aarch64__)
return x5;
return x[5];
#endif
}
} SyscallsFrame;

7
Kernel/include/task.hpp
View File

@ -358,12 +358,13 @@ namespace Tasking
CPU::SchedulerFrame Registers{};
#if defined(__amd64__)
uintptr_t ShadowGSBase, GSBase, FSBase;
__aligned(16) CPU::x64::FXState FPU;
#elif defined(__i386__)
uintptr_t ShadowGSBase, GSBase, FSBase;
#elif defined(__aarch64__)
uintptr_t Registers; // TODO
#endif
__aligned(16) CPU::x64::FXState FPU;
#elif defined(__aarch64__)
uintptr_t __todo; // TODO
#endif
/* Info & Security info */
struct