1 /* 2 * ARM cpu parameters for qemu. 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * SPDX-License-Identifier: LGPL-2.0-or-later 6 */ 7 8 #ifndef ARM_CPU_PARAM_H 9 #define ARM_CPU_PARAM_H 10 11 #ifdef TARGET_AARCH64 12 # define TARGET_PHYS_ADDR_SPACE_BITS 52 13 # define TARGET_VIRT_ADDR_SPACE_BITS 52 14 #else 15 # define TARGET_PHYS_ADDR_SPACE_BITS 40 16 # define TARGET_VIRT_ADDR_SPACE_BITS 32 17 #endif 18 19 #ifdef CONFIG_USER_ONLY 20 # ifdef TARGET_AARCH64 21 # define TARGET_TAGGED_ADDRESSES 22 # ifdef __FreeBSD__ 23 # define TARGET_PAGE_BITS 12 24 # else 25 /* Allow user-only to vary page size from 4k */ 26 # define TARGET_PAGE_BITS_VARY 27 # endif 28 # else 29 # define TARGET_PAGE_BITS 12 30 # endif 31 #else /* !CONFIG_USER_ONLY */ 32 /* 33 * ARMv7 and later CPUs have 4K pages minimum, but ARMv5 and v6 34 * have to support 1K tiny pages. 35 */ 36 # define TARGET_PAGE_BITS_VARY 37 # define TARGET_PAGE_BITS_LEGACY 10 38 #endif /* !CONFIG_USER_ONLY */ 39 40 /* ARM processors have a weak memory model */ 41 #define TCG_GUEST_DEFAULT_MO (0) 42 43 #endif 44