fd25d3babc
The kernel/main.cpp and kernel/memory_bootstrap.cpp files had become something of a junk drawer. This change cleans them up in the following ways: - Most CPU initialization has moved to cpu.cpp, allowing several functions to be made static and removed from cpu.h - Multi-core startup code has moved to the new smp.h and smp.cpp, and ap_startup.s has been renamed smp.s to match. - run_constructors() has moved to memory_bootstrap.cpp, and all the functionality of that file has been hidden behind a new public interface mem::initialize(). - load_init_server() has moved from memory_bootstrap.cpp to main.cpp
88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
#pragma once
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#include <stdint.h>
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class GDT;
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class IDT;
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class lapic;
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struct TCB;
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class TSS;
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namespace obj {
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class process;
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class thread;
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}
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struct cpu_state
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{
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uint64_t r15, r14, r13, r12, r11, r10, r9, r8;
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uint64_t rdi, rsi, rbp, rbx, rdx, rcx, rax;
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uint64_t interrupt, errorcode;
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uint64_t rip, cs, rflags, rsp, ss;
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};
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/// Kernel-wide panic information
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struct panic_data
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{
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void const *symbol_data;
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cpu_state const *user_state;
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char const *message;
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char const *function;
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char const *file;
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uint32_t line;
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uint16_t cpus;
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};
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extern unsigned g_num_cpus;
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extern panic_data *g_panic_data_p;
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/// Per-cpu state data. If you change this, remember to update the assembly
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/// version in 'tasking.inc'
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struct cpu_data
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{
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cpu_data *self;
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uint16_t id;
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uint16_t index;
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uint32_t reserved;
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uintptr_t rsp0;
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uintptr_t rsp3;
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uint64_t rflags3;
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TCB *tcb;
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obj::thread *thread;
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obj::process *process;
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IDT *idt;
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TSS *tss;
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GDT *gdt;
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// Members beyond this point do not appear in
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// the assembly version
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lapic *apic;
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panic_data *panic;
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};
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extern "C" cpu_data * _current_gsbase();
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/// Do early initialization of the BSP CPU.
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/// \returns A pointer to the BSP cpu_data structure
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cpu_data * bsp_early_init();
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/// Do late initialization of the BSP CPU.
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void bsp_late_init();
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/// Create a new cpu_data struct with all requisite sub-objects.
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/// \arg id The ACPI specified id of the CPU
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/// \arg index The kernel-specified initialization index of the CPU
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/// \returns The new cpu_data structure
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cpu_data * cpu_create(uint16_t id, uint16_t index);
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/// Set up the running CPU. This sets GDT, IDT, and necessary MSRs as well as creating
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/// the cpu_data structure for this processor.
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/// \arg cpu The cpu_data structure for this CPU
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/// \arg bsp True if this CPU is the BSP
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void cpu_init(cpu_data *cpu, bool bsp);
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/// Get the cpu_data struct for the current executing CPU
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inline cpu_data & current_cpu() { return *_current_gsbase(); }
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