xref: /OK3568_Linux_fs/kernel/tools/testing/selftests/arm64/pauth/helper.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun // Copyright (C) 2020 ARM Limited
3*4882a593Smuzhiyun 
4*4882a593Smuzhiyun #include "helper.h"
5*4882a593Smuzhiyun 
keyia_sign(size_t ptr)6*4882a593Smuzhiyun size_t keyia_sign(size_t ptr)
7*4882a593Smuzhiyun {
8*4882a593Smuzhiyun 	asm volatile("paciza %0" : "+r" (ptr));
9*4882a593Smuzhiyun 	return ptr;
10*4882a593Smuzhiyun }
11*4882a593Smuzhiyun 
keyib_sign(size_t ptr)12*4882a593Smuzhiyun size_t keyib_sign(size_t ptr)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun 	asm volatile("pacizb %0" : "+r" (ptr));
15*4882a593Smuzhiyun 	return ptr;
16*4882a593Smuzhiyun }
17*4882a593Smuzhiyun 
keyda_sign(size_t ptr)18*4882a593Smuzhiyun size_t keyda_sign(size_t ptr)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun 	asm volatile("pacdza %0" : "+r" (ptr));
21*4882a593Smuzhiyun 	return ptr;
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun 
keydb_sign(size_t ptr)24*4882a593Smuzhiyun size_t keydb_sign(size_t ptr)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun 	asm volatile("pacdzb %0" : "+r" (ptr));
27*4882a593Smuzhiyun 	return ptr;
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun 
keyg_sign(size_t ptr)30*4882a593Smuzhiyun size_t keyg_sign(size_t ptr)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun 	/* output is encoded in the upper 32 bits */
33*4882a593Smuzhiyun 	size_t dest = 0;
34*4882a593Smuzhiyun 	size_t modifier = 0;
35*4882a593Smuzhiyun 
36*4882a593Smuzhiyun 	asm volatile("pacga %0, %1, %2" : "=r" (dest) : "r" (ptr), "r" (modifier));
37*4882a593Smuzhiyun 
38*4882a593Smuzhiyun 	return dest;
39*4882a593Smuzhiyun }
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