[qemu.git] / linux-user / aarch64 / target_cpu.h

/*
 * ARM AArch64 specific CPU ABI and functions for linux-user
 *
 * Copyright (c) 2013 Alexander Graf <[email protected]>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */
#ifndef TARGET_CPU_H
#define TARGET_CPU_H

static inline void cpu_clone_regs(CPUARMState *env, target_ulong newsp)
{
    if (newsp) {
        env->xregs[31] = newsp;
    }
    env->xregs[0] = 0;
}

static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
{
    /* Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is
     * different from AArch32 Linux, which uses TPIDRRO.
     */
    env->cp15.tpidr_el[0] = newtls;
}

#endif
Commit	Line	Data
e2cea499 AG	1	/*
	2	* ARM AArch64 specific CPU ABI and functions for linux-user
	3	*
	4	* Copyright (c) 2013 Alexander Graf <[email protected]>
	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 TARGET_CPU_H
	20	#define TARGET_CPU_H
	21
	22	static inline void cpu_clone_regs(CPUARMState *env, target_ulong newsp)
	23	{
	24	if (newsp) {
	25	env->xregs[31] = newsp;
	26	}
	27	env->xregs[0] = 0;
	28	}
	29
	30	static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
	31	{
e4fe830b PM	32	/* Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is
	33	* different from AArch32 Linux, which uses TPIDRRO.
	34	*/
54bf36ed	35	env->cp15.tpidr_el[0] = newtls;
e2cea499 AG	36	}
	37
	38	#endif