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 # ifdef TARGET_AARCH64 23 # define TARGET_TAGGED_ADDRESSES 24 /* Allow user-only to vary page size from 4k */ 25 # define TARGET_PAGE_BITS_VARY 26 # define TARGET_PAGE_BITS_MIN 12 27 # else 28 # define TARGET_PAGE_BITS 12 29 # endif 30 #else /* !CONFIG_USER_ONLY */ 31 /* 32 * ARMv7 and later CPUs have 4K pages minimum, but ARMv5 and v6 33 * have to support 1K tiny pages. 34 */ 35 # define TARGET_PAGE_BITS_VARY 36 # define TARGET_PAGE_BITS_MIN 10 37 #endif /* !CONFIG_USER_ONLY */ 38 39 /* ARM processors have a weak memory model */ 40 #define TCG_GUEST_DEFAULT_MO (0) 41 42 #endif 43