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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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12
Kernel/tasking/scheduler/custom.cpp
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@ -103,7 +103,11 @@
#define wut_schedbg(m, ...)
#endif
__naked __used nsa void __custom_sched_idle_loop()
#if defined(__amd64__) || defined(__i386__)
__naked
#endif
__used nsa void
__custom_sched_idle_loop()
{
#if defined(__amd64__) || defined(__i386__)
asmv("IdleLoop:");
@ -668,10 +672,12 @@ namespace Tasking::Scheduler
CurrentCPU->CurrentProcess->State.store(TaskState::Running);
CurrentCPU->CurrentThread->State.store(TaskState::Running);
#if defined(__amd64__) || defined(__i386__)
if (CurrentCPU->CurrentThread->Registers.cs != GDT_KERNEL_CODE)
CurrentCPU->CurrentThread->Registers.ppt = (uint64_t)(void *)CurrentCPU->CurrentProcess->PageTable;
else
CurrentCPU->CurrentThread->Registers.ppt = (uint64_t)(void *)KernelPageTable;
#endif
// if (!SchedulerUpdateTrapFrame) {} // TODO
@ -701,12 +707,14 @@ namespace Tasking::Scheduler
CurrentCPU->CurrentThread->Registers.rip,
CurrentCPU->CurrentThread->Registers.rbp,
CurrentCPU->CurrentThread->Registers.rsp);
#else
#elif defined(__i386__)
trace("%s[%ld]: EIP=%#lx EBP=%#lx ESP=%#lx",
CurrentCPU->CurrentThread->Name, CurrentCPU->CurrentThread->ID,
CurrentCPU->CurrentThread->Registers.eip,
CurrentCPU->CurrentThread->Registers.ebp,
CurrentCPU->CurrentThread->Registers.esp);
#elif defined(__aarch64__)
#warning "aarch64 not implemented yet"
#endif
}

19
Kernel/tasking/thread.cpp
View File

@ -321,7 +321,7 @@ namespace Tasking
#elif defined(__i386__)
this->Registers.esp = StackPointerReg;
#elif defined(__aarch64__)
this->Registers.sp = StackPointerReg;
#warning "aarch64 not implemented"
#endif
if (argvLen > 0)
@ -349,10 +349,7 @@ namespace Tasking
this->Registers.ecx = (uintptr_t)envpLen; // envc
this->Registers.edx = (uintptr_t)(this->Registers.esp + 4 + (4 * argvLen) + 4); // envp
#elif defined(__aarch64__)
this->Registers.x0 = (uintptr_t)argvLen; // argc
this->Registers.x1 = (uintptr_t)(this->Registers.sp + 8); // argv
this->Registers.x2 = (uintptr_t)envpLen; // envc
this->Registers.x3 = (uintptr_t)(this->Registers.sp + 8 + (8 * argvLen) + 8); // envp
#warning "aarch64 not implemented"
#endif
}
@ -410,8 +407,10 @@ namespace Tasking
uintptr_t *pTLSPointer = (uintptr_t *)this->TLS.pBase + this->TLS.Size;
*pTLSPointer = this->TLS.pBase + this->TLS.Size;
#if defined(__amd64__) || defined(__i386__)
this->GSBase = r_cst(uintptr_t, pTLSPointer);
this->FSBase = r_cst(uintptr_t, pTLSPointer);
#endif
}
TCB::TCB(Task *ctx, PCB *Parent, IP EntryPoint,
@ -470,7 +469,7 @@ namespace Tasking
#elif defined(__i386__)
this->Registers.eip = EntryPoint;
#elif defined(__aarch64__)
this->Registers.pc = EntryPoint;
#warning "aarch64 not implemented"
#endif
switch (this->Parent->Security.ExecutionMode)
@ -506,9 +505,7 @@ namespace Tasking
this->Registers.esp = ((uintptr_t)this->Stack->GetStackTop());
POKE(uintptr_t, this->Registers.esp) = (uintptr_t)ThreadDoExit;
#elif defined(__aarch64__)
this->Registers.pc = EntryPoint;
this->Registers.sp = ((uintptr_t)this->Stack->GetStackTop());
POKE(uintptr_t, this->Registers.sp) = (uintptr_t)ThreadDoExit;
#warning "aarch64 not implemented"
#endif
break;
}
@ -612,10 +609,12 @@ namespace Tasking
this->Parent->Info.RootNode = this->Info.RootNode;
}
// TODO: Is really a good idea to use the FPU in kernel mode?
// TODO: Is really a good idea to use the FPU in kernel mode?
#if defined(__amd64__) || defined(__i386__)
this->FPU.mxcsr = 0b0001111110000000;
this->FPU.mxcsrmask = 0b1111111110111111;
this->FPU.fcw = 0b0000001100111111;
#endif
#ifdef DEBUG
#ifdef __amd64__