50 lines
761 B
C++
50 lines
761 B
C++
#pragma once
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#include <luna/Types.h>
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struct Registers // Saved CPU registers for x86-64
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{
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u64 r15, r14, r13, r12, r11, r10, r9, r8;
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u64 rbp, rdi, rsi, rdx, rcx, rbx, rax;
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u64 isr;
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union {
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u64 error;
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u64 irq;
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};
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u64 rip, cs, rflags, rsp, ss;
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};
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struct FPData
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{
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void save();
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void restore();
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void* data()
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{
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return (void*)m_data;
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}
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usize size() const
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{
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return 512;
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}
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private:
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char m_data[512] alignas(16);
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bool m_already_saved;
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};
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struct [[gnu::packed]] TSS
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{
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u32 reserved0;
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u64 rsp[3];
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u64 reserved1;
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u64 ist[7];
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u64 reserved2;
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u16 reserved3;
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u16 iomap_base;
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};
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static_assert(sizeof(TSS) == 104UL);
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extern TSS task_state_segment;
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