1 /* 2 * ARM specific CPU ABI and functions for linux-user 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library 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 GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 #ifndef ARM_TARGET_CPU_H 20 #define ARM_TARGET_CPU_H 21 22 /* We need to be able to map the commpage. 23 See validate_guest_space in linux-user/elfload.c. */ 24 #define MAX_RESERVED_VA 0xffff0000ul 25 26 static inline void cpu_clone_regs(CPUARMState *env, target_ulong newsp) 27 { 28 if (newsp) { 29 env->regs[13] = newsp; 30 } 31 env->regs[0] = 0; 32 } 33 34 static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls) 35 { 36 if (access_secure_reg(env)) { 37 env->cp15.tpidruro_s = newtls; 38 } else { 39 env->cp15.tpidrro_el[0] = newtls; 40 } 41 } 42 43 static inline target_ulong cpu_get_tls(CPUARMState *env) 44 { 45 if (access_secure_reg(env)) { 46 return env->cp15.tpidruro_s; 47 } else { 48 return env->cp15.tpidrro_el[0]; 49 } 50 } 51 52 #endif 53