1*d8bf5168SSepherosa Ziehau /*- 2*d8bf5168SSepherosa Ziehau * Copyright (c) 2016 Microsoft Corp. 3*d8bf5168SSepherosa Ziehau * All rights reserved. 4*d8bf5168SSepherosa Ziehau * 5*d8bf5168SSepherosa Ziehau * Redistribution and use in source and binary forms, with or without 6*d8bf5168SSepherosa Ziehau * modification, are permitted provided that the following conditions 7*d8bf5168SSepherosa Ziehau * are met: 8*d8bf5168SSepherosa Ziehau * 1. Redistributions of source code must retain the above copyright 9*d8bf5168SSepherosa Ziehau * notice unmodified, this list of conditions, and the following 10*d8bf5168SSepherosa Ziehau * disclaimer. 11*d8bf5168SSepherosa Ziehau * 2. Redistributions in binary form must reproduce the above copyright 12*d8bf5168SSepherosa Ziehau * notice, this list of conditions and the following disclaimer in the 13*d8bf5168SSepherosa Ziehau * documentation and/or other materials provided with the distribution. 14*d8bf5168SSepherosa Ziehau * 15*d8bf5168SSepherosa Ziehau * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16*d8bf5168SSepherosa Ziehau * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17*d8bf5168SSepherosa Ziehau * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18*d8bf5168SSepherosa Ziehau * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19*d8bf5168SSepherosa Ziehau * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20*d8bf5168SSepherosa Ziehau * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21*d8bf5168SSepherosa Ziehau * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22*d8bf5168SSepherosa Ziehau * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23*d8bf5168SSepherosa Ziehau * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24*d8bf5168SSepherosa Ziehau * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25*d8bf5168SSepherosa Ziehau */ 26*d8bf5168SSepherosa Ziehau 27*d8bf5168SSepherosa Ziehau #include <sys/cdefs.h> 28*d8bf5168SSepherosa Ziehau __FBSDID("$FreeBSD$"); 29*d8bf5168SSepherosa Ziehau 30*d8bf5168SSepherosa Ziehau #include <sys/param.h> 31*d8bf5168SSepherosa Ziehau #include <dev/hyperv/vmbus/hyperv_machdep.h> 32*d8bf5168SSepherosa Ziehau 33*d8bf5168SSepherosa Ziehau uint64_t 34*d8bf5168SSepherosa Ziehau hypercall_md(volatile void *hc_addr, uint64_t in_val, 35*d8bf5168SSepherosa Ziehau uint64_t in_paddr, uint64_t out_paddr) 36*d8bf5168SSepherosa Ziehau { 37*d8bf5168SSepherosa Ziehau uint64_t status; 38*d8bf5168SSepherosa Ziehau 39*d8bf5168SSepherosa Ziehau __asm__ __volatile__ ("mov %0, %%r8" : : "r" (out_paddr): "r8"); 40*d8bf5168SSepherosa Ziehau __asm__ __volatile__ ("call *%3" : "=a" (status) : 41*d8bf5168SSepherosa Ziehau "c" (in_val), "d" (in_paddr), "m" (hc_addr)); 42*d8bf5168SSepherosa Ziehau return (status); 43*d8bf5168SSepherosa Ziehau } 44