xref: /openbmc/qemu/bsd-user/arm/target_arch_cpu.c (revision ed75658a)
1 /*
2  *  arm cpu related code
3  *
4  *  Copyright (c) 2013 Stacey D. Son
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "target_arch.h"
22 
23 void target_cpu_set_tls(CPUARMState *env, target_ulong newtls)
24 {
25     if (access_secure_reg(env)) {
26         env->cp15.tpidrurw_s = newtls;
27         env->cp15.tpidruro_s = newtls;
28         return;
29     }
30 
31     env->cp15.tpidr_el[0] = newtls;
32     env->cp15.tpidrro_el[0] = newtls;
33 }
34 
35 target_ulong target_cpu_get_tls(CPUARMState *env)
36 {
37     if (access_secure_reg(env)) {
38         return env->cp15.tpidruro_s;
39     }
40     return env->cp15.tpidrro_el[0];
41 }
42