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/*
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 * Copyright (C) 2005 Ondrej Palkovsky
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 * All rights reserved.
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 *
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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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 * are met:
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 *
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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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 *
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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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 */
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#ifndef __amd64_CONTEXT_H__
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#define __amd64_CONTEXT_H__
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#ifndef __amd64_TYPES_H__
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#  include <arch/types.h>
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#endif
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/* According to ABI the stack MUST be aligned on
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 * 16-byte boundary. If it is not, the va_arg calling will
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 * panic sooner or later
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 */
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#define SP_DELTA     16
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/* We include only registers that must be preserved
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 * during function call
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 */
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struct context {
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    __address sp;
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    __address pc;
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    __u64 rbx;
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    __u64 rbp;
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    __u64 r12;
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    __u64 r13;
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    __u64 r14;
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    __u64 r15;
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    ipl_t ipl;
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} __attribute__ ((packed));
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/** This is passed to interrupt handlers */
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struct interrupt_context {
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    __u64 rax;
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    __u64 rbx;
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    __u64 rcx;
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    __u64 rdx;
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    __u64 rsi;
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    __u64 rdi;
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    __u64 r8;
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    __u64 r9;
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    __u64 r10;
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    __u64 r11;
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    __u64 r12;
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    __u64 r13;
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    __u64 r14;
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    __u64 r15;
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    /* These 2 items MUST be last parts of the structure */
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    __u64 rbp;
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    __u64 stack[0]; /* Additional data on stack */
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} __attribute__ ((packed));
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#endif