diff options
| author | Mark Corbin <mark@dibsco.co.uk> | 2024-09-17 01:51:03 +1000 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2024-10-02 15:11:51 +1000 |
| commit | 9d49b1c9edf829e571093088ddff0b73db3110c6 (patch) | |
| tree | 5e9ecc0ed790535ab3ba29f07703dd55b2f20233 /bsd-user | |
| parent | 1165e30d950a41a2898f7ab426984cb0d0251f72 (diff) | |
bsd-user: Implement RISC-V CPU initialization and main loop
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 <mark@dibsco.co.uk>
Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
Co-authored-by: Jessica Clarke <jrtc27@jrtc27.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240916155119.14610-2-itachis@FreeBSD.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'bsd-user')
| -rw-r--r-- | bsd-user/riscv/target_arch_cpu.h | 40 |
1 files changed, 40 insertions, 0 deletions
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 */ |