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1813 decky 1 
/*
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 * Copyright (C) 2006 Martin Decky
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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 __xen32_HYPERCALL_H__
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#define __xen32_HYPERCALL_H__
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#include <arch/types.h>
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#include <macros.h>
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#define XEN_CONSOLE_IO  18
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/*
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 * Commands for XEN_CONSOLE_IO
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 */
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#define CONSOLE_IO_WRITE    0
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#define CONSOLE_IO_READ     1
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#define hypercall0(id)  \
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    ({  \
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        unative_t ret;  \
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        asm volatile (  \
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            "call hypercall_page + (" STRING(id) " * 32)\n" \
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            : "=a" (ret)    \
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            :   \
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            : "memory"  \
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        );  \
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        ret;    \
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    })
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#define hypercall1(id, p1)  \
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    ({  \
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        unative_t ret, __ign1;  \
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        asm volatile (  \
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            "call hypercall_page + (" STRING(id) " * 32)\n" \
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            : "=a" (ret), \
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              "=b" (__ign1) \
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            : "1" (p1)  \
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            : "memory"  \
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        );  \
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        ret;    \
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    })
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#define hypercall2(id, p1, p2)  \
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    ({  \
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        unative_t ret, __ign1, __ign2;  \
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        asm volatile (  \
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            "call hypercall_page + (" STRING(id) " * 32)\n" \
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            : "=a" (ret), \
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              "=b" (__ign1),    \
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              "=c" (__ign2) \
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            : "1" (p1), \
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              "2" (p2)  \
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            : "memory"  \
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        );  \
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        ret;    \
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    })
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#define hypercall3(id, p1, p2, p3)  \
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    ({  \
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        unative_t ret, __ign1, __ign2, __ign3;  \
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        asm volatile (  \
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            "call hypercall_page + (" STRING(id) " * 32)\n" \
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            : "=a" (ret), \
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              "=b" (__ign1),    \
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              "=c" (__ign2),    \
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              "=d" (__ign3) \
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            : "1" (p1), \
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              "2" (p2), \
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              "3" (p3)  \
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            : "memory"  \
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        );  \
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        ret;    \
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    })
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#define hypercall4(id, p1, p2, p3, p4)  \
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    ({  \
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        unative_t ret, __ign1, __ign2, __ign3, __ign4;  \
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        asm volatile (  \
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            "call hypercall_page + (" STRING(id) " * 32)\n" \
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            : "=a" (ret), \
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              "=b" (__ign1),    \
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              "=c" (__ign2),    \
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              "=d" (__ign3),    \
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              "=S" (__ign4) \
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            : "1" (p1), \
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              "2" (p2), \
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              "3" (p3), \
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              "4" (p4)  \
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            : "memory"  \
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        );  \
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        ret;    \
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    })
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#define hypercall5(id, p1, p2, p3, p4, p5)  \
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    ({  \
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        unative_t ret, __ign1, __ign2, __ign3, __ign4, __ign5;  \
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        asm volatile (  \
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            "call hypercall_page + (" STRING(id) " * 32)\n" \
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            : "=a" (ret), \
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              "=b" (__ign1),    \
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              "=c" (__ign2),    \
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              "=d" (__ign3),    \
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              "=S" (__ign4),    \
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              "=D" (__ign5) \
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            : "1" (p1), \
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              "2" (p2), \
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              "3" (p3), \
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              "4" (p4), \
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              "5" (p5)  \
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            : "memory"  \
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        );  \
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        ret;    \
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    })
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static inline int xen_console_io(const int cmd, const int count, const char *str)
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{
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    return hypercall3(XEN_CONSOLE_IO, cmd, count, str);
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}
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#endif