1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*-
* 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));
}
|
