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hyperv_machdep.c
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vmbus_vector.S
(1.75 KB)
Editing: hyperv_machdep.c
/*- * Copyright (c) 2016 Microsoft Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <dev/hyperv/vmbus/hyperv_machdep.h> uint64_t hypercall_md(volatile void *hc_addr, uint64_t in_val, uint64_t in_paddr, uint64_t out_paddr) { uint32_t in_val_hi = in_val >> 32; uint32_t in_val_lo = in_val & 0xFFFFFFFF; uint32_t status_hi, status_lo; uint32_t in_paddr_hi = in_paddr >> 32; uint32_t in_paddr_lo = in_paddr & 0xFFFFFFFF; uint32_t out_paddr_hi = out_paddr >> 32; uint32_t out_paddr_lo = out_paddr & 0xFFFFFFFF; __asm__ __volatile__ ("call *%8" : "=d"(status_hi), "=a"(status_lo) : "d" (in_val_hi), "a" (in_val_lo), "b" (in_paddr_hi), "c" (in_paddr_lo), "D"(out_paddr_hi), "S"(out_paddr_lo), "m" (hc_addr)); return (status_lo | ((uint64_t)status_hi << 32)); }
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