/* * RISC-V cpu parameters for qemu. * * Copyright (c) 2017-2018 SiFive, Inc. * SPDX-License-Identifier: GPL-2.0+ */ #ifndef RISCV_CPU_PARAM_H #define RISCV_CPU_PARAM_H 1 #if defined(TARGET_RISCV64) # define TARGET_LONG_BITS 64 # define TARGET_PHYS_ADDR_SPACE_BITS 56 /* 44-bit PPN */ # define TARGET_VIRT_ADDR_SPACE_BITS 48 /* sv48 */ #elif defined(TARGET_RISCV32) # define TARGET_LONG_BITS 32 # define TARGET_PHYS_ADDR_SPACE_BITS 34 /* 22-bit PPN */ # define TARGET_VIRT_ADDR_SPACE_BITS 32 /* sv32 */ #endif #define TARGET_PAGE_BITS 12 /* 4 KiB Pages */ #define NB_MMU_MODES 4 #endif