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#define VECTOR_SYSCALL              IVT_FREEBASE
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#define VECTOR_SYSCALL              IVT_FREEBASE
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#define VECTOR_TLB_SHOOTDOWN_IPI    (IVT_FREEBASE + 1)
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#define VECTOR_TLB_SHOOTDOWN_IPI    (IVT_FREEBASE + 1)
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#define VECTOR_DEBUG_IPI            (IVT_FREEBASE + 2)
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#define VECTOR_DEBUG_IPI            (IVT_FREEBASE + 2)
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/** This is passed to interrupt handlers */
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/** This is passed to interrupt handlers */
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struct istate {
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typedef struct {
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    uint64_t rax;
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    uint64_t rax;
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    uint64_t rbx;
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    uint64_t rbx;
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    uint64_t rcx;
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    uint64_t rcx;
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    uint64_t rdx;
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    uint64_t rdx;
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    uint64_t rsi;
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    uint64_t rsi;
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    uint64_t error_word;
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    uint64_t error_word;
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    uint64_t rip;
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    uint64_t rip;
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    uint64_t cs;
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    uint64_t cs;
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    uint64_t rflags;
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    uint64_t rflags;
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    uint64_t stack[]; /* Additional data on stack */
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    uint64_t stack[]; /* Additional data on stack */
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};
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} istate_t;
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/** Return true if exception happened while in userspace */
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/** Return true if exception happened while in userspace */
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static inline int istate_from_uspace(istate_t *istate)
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static inline int istate_from_uspace(istate_t *istate)
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{
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{
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    return !(istate->rip & 0x8000000000000000);
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    return !(istate->rip & 0x8000000000000000);