| 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_VIRT_ADDR_SPACE_BITS 52 |
| 13 | #else |
| 14 | # define TARGET_VIRT_ADDR_SPACE_BITS 32 |
| 15 | #endif |
| 16 | |
| 17 | #ifdef CONFIG_USER_ONLY |
| 18 | # if defined(TARGET_AARCH64) && defined(CONFIG_LINUX) |
| 19 | /* Allow user-only to vary page size from 4k */ |
| 20 | # define TARGET_PAGE_BITS_VARY |
| 21 | # else |
| 22 | # define TARGET_PAGE_BITS 12 |
| 23 | # endif |
| 24 | #else /* !CONFIG_USER_ONLY */ |
| 25 | /* |
| 26 | * ARMv7 and later CPUs have 4K pages minimum, but ARMv5 and v6 |
| 27 | * have to support 1K tiny pages. |
| 28 | */ |
| 29 | # define TARGET_PAGE_BITS_VARY |
| 30 | # define TARGET_PAGE_BITS_LEGACY 10 |
| 31 | #endif /* !CONFIG_USER_ONLY */ |
| 32 | |
| 33 | #endif |