target/arm/cpu-param.h

   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
  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
  38 #endif
  39
  40 #endif