[qemu.git] / target / i386 / cpu-param.h

/*
 * 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
Commit	Line	Data
74433bf0 RH	1	/*
	2	* i386 cpu parameters for qemu.
	3	*
	4	* Copyright (c) 2003 Fabrice Bellard
	5	* SPDX-License-Identifier: LGPL-2.0+
	6	*/
	7
	8	#ifndef I386_CPU_PARAM_H
	9	#define I386_CPU_PARAM_H 1
	10
	11	#ifdef TARGET_X86_64
	12	# define TARGET_LONG_BITS 64
	13	# define TARGET_PHYS_ADDR_SPACE_BITS 52
	14	/*
	15	* ??? This is really 48 bits, sign-extended, but the only thing
	16	* accessible to userland with bit 48 set is the VSYSCALL, and that
	17	* is handled via other mechanisms.
	18	*/
	19	# define TARGET_VIRT_ADDR_SPACE_BITS 47
	20	#else
	21	# define TARGET_LONG_BITS 32
	22	# define TARGET_PHYS_ADDR_SPACE_BITS 36
	23	# define TARGET_VIRT_ADDR_SPACE_BITS 32
	24	#endif
	25	#define TARGET_PAGE_BITS 12
	26	#define NB_MMU_MODES 3
	27
	28	#endif