1 /* 2 * ARM cpu parameters for qemu. 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * SPDX-License-Identifier: LGPL-2.0+ 6 */ 7 8 #ifndef ARM_CPU_PARAM_H 9 #define ARM_CPU_PARAM_H 10 11 #ifdef TARGET_AARCH64 12 # define TARGET_LONG_BITS 64 13 # define TARGET_PHYS_ADDR_SPACE_BITS 52 14 # define TARGET_VIRT_ADDR_SPACE_BITS 52 15 #else 16 # define TARGET_LONG_BITS 32 17 # define TARGET_PHYS_ADDR_SPACE_BITS 40 18 # define TARGET_VIRT_ADDR_SPACE_BITS 32 19 #endif 20 21 #ifdef CONFIG_USER_ONLY 22 #define TARGET_PAGE_BITS 12 23 # ifdef TARGET_AARCH64 24 # define TARGET_TAGGED_ADDRESSES 25 # endif 26 #else 27 /* 28 * ARMv7 and later CPUs have 4K pages minimum, but ARMv5 and v6 29 * have to support 1K tiny pages. 30 */ 31 # define TARGET_PAGE_BITS_VARY 32 # define TARGET_PAGE_BITS_MIN 10 33 34 #endif 35 36 #endif 37