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* Copyright (c) 2001-2004 Jakub Jermar
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/** @addtogroup amd64interrupt
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#ifndef KERN_amd64_INTERRUPT_H_
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#define KERN_amd64_INTERRUPT_H_
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#include <arch/types.h>
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#define IVT_ITEMS IDT_ITEMS
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#define IVT_IRQBASE (IVT_EXCBASE + EXC_COUNT)
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#define IVT_FREEBASE (IVT_IRQBASE + IRQ_COUNT)
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#define IRQ_PIC_SPUR 7
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/* this one must have four least significant bits set to ones */
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#define VECTOR_APIC_SPUR (IVT_ITEMS - 1)
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#if (((VECTOR_APIC_SPUR + 1) % 16) || VECTOR_APIC_SPUR >= IVT_ITEMS)
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#error Wrong definition of VECTOR_APIC_SPUR
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#define VECTOR_DEBUG 1
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#define VECTOR_CLK (IVT_IRQBASE + IRQ_CLK)
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#define VECTOR_PIC_SPUR (IVT_IRQBASE + IRQ_PIC_SPUR)
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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_DEBUG_IPI (IVT_FREEBASE + 2)
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/** This is passed to interrupt handlers */
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uint64_t stack[]; /* Additional data on stack */
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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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return !(istate->rip & 0x8000000000000000);
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static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
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istate->rip = retaddr;
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static inline unative_t istate_get_pc(istate_t *istate)
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extern void (* disable_irqs_function)(uint16_t irqmask);
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extern void (* enable_irqs_function)(uint16_t irqmask);
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extern void (* eoi_function)(void);
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extern void decode_istate(int n, istate_t *istate);
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extern void interrupt_init(void);
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extern void trap_virtual_enable_irqs(uint16_t irqmask);
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extern void trap_virtual_disable_irqs(uint16_t irqmask);
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/* AMD64 - specific page handler */
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extern void ident_page_fault(int n, istate_t *istate);