81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
#pragma once
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#include <kernel/constants.hpp>
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#include <kernel/system/descriptors.h>
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#include <kernel/system/memory.h>
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#include <stddef.h>
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#include <stdint.h>
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/************************
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*** Team Kitty, 2021 ***
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*** Chroma ***
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***********************/
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/**
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* The relevant information contained within a stack trace - each call consists of the
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* contained information. By navigating the RBP until the base is found, a full backwards call stack can be determined.
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*/
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struct StackFrame {
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StackFrame* rbp;
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size_t rip;
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};
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/**
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* Contains the definitions required to define and manage a single physical processing core.
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* These include; active GDT and IDT, TSS segments, saved stacks for execution and syscalls.
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* There are some utility functions for saving and loading extended registers, as well as
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* for identifying individual Cores in a running system.
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*
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*/
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class Core {
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public:
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Core() {}
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Core(size_t LAPIC, size_t ID);
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size_t ID;
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size_t LocalAPIC;
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address_space_t* AddressSpace;
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uint8_t* SyscallStack;
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size_t StackAddress;
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uint8_t StackData[Constants::Core::STACK_SIZE];
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IDT CoreIDT;
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GDT CoreGDT;
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TSS64 CoreTSS;
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void LoadExtraRegisters(uint8_t* Data);
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void SaveExtraRegisters(uint8_t* Data);
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void StackTrace(size_t Cycles);
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static Core* GetCurrent() {
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size_t CoreID = 0;
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__asm__ __volatile__("mov %0, %%fs\n" : "=r"(CoreID) : :);
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return &Processors[CoreID];
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}
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static Core* GetCore(int ID) { return &Processors[ID]; }
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static void Init();
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private:
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static Core Processors[];
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// Initialization vectors for all new cores.
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// Numbers derived from boot.h space.
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// Specifically, the bootloader ROM.
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enum Initialization {
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PAGETABLES = 0x600,
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STARTUP = 0x620,
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STACK = 0x670,
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GDT = 0x680,
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IDT = 0x690
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};
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void Bootstrap();
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void SetupData(size_t ID);
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} __attribute__((packed));
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