835e5fe9e2
Since ppc binaries are generally built for multiple page sizes, it is trivial to allow the page size to vary. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Helge Deller <deller@gmx.de> Message-Id: <20240102015808.132373-33-richard.henderson@linaro.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/*
|
|
* PowerPC cpu parameters for qemu.
|
|
*
|
|
* Copyright (c) 2007 Jocelyn Mayer
|
|
* SPDX-License-Identifier: LGPL-2.0+
|
|
*/
|
|
|
|
#ifndef PPC_CPU_PARAM_H
|
|
#define PPC_CPU_PARAM_H
|
|
|
|
#ifdef TARGET_PPC64
|
|
# define TARGET_LONG_BITS 64
|
|
/*
|
|
* Note that the official physical address space bits is 62-M where M
|
|
* is implementation dependent. I've not looked up M for the set of
|
|
* cpus we emulate at the system level.
|
|
*/
|
|
#define TARGET_PHYS_ADDR_SPACE_BITS 62
|
|
/*
|
|
* Note that the PPC environment architecture talks about 80 bit virtual
|
|
* addresses, with segmentation. Obviously that's not all visible to a
|
|
* single process, which is all we're concerned with here.
|
|
*/
|
|
# ifdef TARGET_ABI32
|
|
# define TARGET_VIRT_ADDR_SPACE_BITS 32
|
|
# else
|
|
# define TARGET_VIRT_ADDR_SPACE_BITS 64
|
|
# endif
|
|
#else
|
|
# define TARGET_LONG_BITS 32
|
|
# define TARGET_PHYS_ADDR_SPACE_BITS 36
|
|
# define TARGET_VIRT_ADDR_SPACE_BITS 32
|
|
#endif
|
|
|
|
#ifdef CONFIG_USER_ONLY
|
|
/* Allow user-only to vary page size from 4k */
|
|
# define TARGET_PAGE_BITS_VARY
|
|
# define TARGET_PAGE_BITS_MIN 12
|
|
#else
|
|
# define TARGET_PAGE_BITS 12
|
|
#endif
|
|
|
|
#endif
|