From e02cda008591317b1625707ff8e115a4841aa889 Mon Sep 17 00:00:00 2001 From: Timos Ampelikiotis Date: Tue, 10 Oct 2023 11:40:56 +0000 Subject: Introduce Virtio-loopback epsilon release: Epsilon release introduces a new compatibility layer which make virtio-loopback design to work with QEMU and rust-vmm vhost-user backend without require any changes. Signed-off-by: Timos Ampelikiotis Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9 --- linux-user/openrisc/target_cpu.h | 46 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 linux-user/openrisc/target_cpu.h (limited to 'linux-user/openrisc/target_cpu.h') diff --git a/linux-user/openrisc/target_cpu.h b/linux-user/openrisc/target_cpu.h new file mode 100644 index 000000000..74370d67c --- /dev/null +++ b/linux-user/openrisc/target_cpu.h @@ -0,0 +1,46 @@ +/* + * OpenRISC specific CPU ABI and functions for linux-user + * + * Copyright (c) 2011-2012 Jia Liu + * + * 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 2.1 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 . + */ + +#ifndef OPENRISC_TARGET_CPU_H +#define OPENRISC_TARGET_CPU_H + +static inline void cpu_clone_regs_child(CPUOpenRISCState *env, + target_ulong newsp, + unsigned flags) +{ + if (newsp) { + cpu_set_gpr(env, 1, newsp); + } + cpu_set_gpr(env, 11, 0); +} + +static inline void cpu_clone_regs_parent(CPUOpenRISCState *env, unsigned flags) +{ +} + +static inline void cpu_set_tls(CPUOpenRISCState *env, target_ulong newtls) +{ + cpu_set_gpr(env, 10, newtls); +} + +static inline abi_ulong get_sp_from_cpustate(CPUOpenRISCState *state) +{ + return cpu_get_gpr(state, 1); +} +#endif -- cgit