/* * i386 cpu parameters for qemu. * * Copyright (c) 2003 Fabrice Bellard * SPDX-License-Identifier: LGPL-2.0+ */ #ifndef I386_CPU_PARAM_H #define I386_CPU_PARAM_H 1 #ifdef TARGET_X86_64 # define TARGET_LONG_BITS 64 # define TARGET_PHYS_ADDR_SPACE_BITS 52 /* * ??? This is really 48 bits, sign-extended, but the only thing * accessible to userland with bit 48 set is the VSYSCALL, and that * is handled via other mechanisms. */ # define TARGET_VIRT_ADDR_SPACE_BITS 47 #else # define TARGET_LONG_BITS 32 # define TARGET_PHYS_ADDR_SPACE_BITS 36 # define TARGET_VIRT_ADDR_SPACE_BITS 32 #endif #define TARGET_PAGE_BITS 12 #define NB_MMU_MODES 3 #endif