diff options
| -rw-r--r-- | src/arch/riscv/include/arch/cpu.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/arch/riscv/include/arch/cpu.h b/src/arch/riscv/include/arch/cpu.h index 6008c75122..d2f42a8665 100644 --- a/src/arch/riscv/include/arch/cpu.h +++ b/src/arch/riscv/include/arch/cpu.h @@ -51,5 +51,11 @@ static inline int supports_extension(char ext) return read_csr(misa) & (1 << (ext - 'A')); } +static inline int machine_xlen(void) +{ + int mxl = (read_csr(misa) >> (__riscv_xlen - 2)) & 3; + return (1 << mxl) * 16; +} + struct cpu_info *cpu_info(void); #endif /* __ARCH_CPU_H__ */ |