From: Mark Corbin <m...@dibsco.co.uk> Added the initial implementation for RISC-V CPU initialization and main loop. This includes setting up the general-purpose registers and program counter based on the provided target architecture definitions.
Signed-off-by: Mark Corbin <m...@dibsco.co.uk> Signed-off-by: Ajeet Singh <itac...@freebsd.org> Co-authored-by: Jessica Clarke <jrt...@jrtc27.com> Reviewed-by: Richard Henderson <richard.hender...@linaro.org> Message-ID: <20240916155119.14610-2-itac...@freebsd.org> Signed-off-by: Alistair Francis <alistair.fran...@wdc.com> --- bsd-user/riscv/target_arch_cpu.h | 40 ++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 bsd-user/riscv/target_arch_cpu.h diff --git a/bsd-user/riscv/target_arch_cpu.h b/bsd-user/riscv/target_arch_cpu.h new file mode 100644 index 0000000000..f8d85e01ad --- /dev/null +++ b/bsd-user/riscv/target_arch_cpu.h @@ -0,0 +1,40 @@ +/* + * RISC-V CPU init and loop + * + * Copyright (c) 2019 Mark Corbin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef TARGET_ARCH_CPU_H +#define TARGET_ARCH_CPU_H + +#include "target_arch.h" +#include "signal-common.h" + +#define TARGET_DEFAULT_CPU_MODEL "max" + +static inline void target_cpu_init(CPURISCVState *env, + struct target_pt_regs *regs) +{ + int i; + + for (i = 1; i < 32; i++) { + env->gpr[i] = regs->regs[i]; + } + + env->pc = regs->sepc; +} + +#endif /* TARGET_ARCH_CPU_H */ -- 2.46.2
