qemu/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

#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

/* The x86 has a strong memory model with some store-after-load re-ordering */
#define TCG_GUEST_DEFAULT_MO      (TCG_MO_ALL & ~TCG_MO_ST_LD)

#endif
tcg: Split out target/arch/cpu-param.h For all targets, into this new file move TARGET_LONG_BITS, TARGET_PAGE_BITS, TARGET_PHYS_ADDR_SPACE_BITS, TARGET_VIRT_ADDR_SPACE_BITS, and NB_MMU_MODES. Include this new file from exec/cpu-defs.h. This now removes the somewhat odd requirement that target/arch/cpu.h defines TARGET_LONG_BITS before including exec/cpu-defs.h, so push the bulk of the includes within target/arch/cpu.h to the top. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2019-03-22 21:51:19 +03:00			`/*`
			`* i386 cpu parameters for qemu.`
			`*`
			`* Copyright (c) 2003 Fabrice Bellard`
			`* SPDX-License-Identifier: LGPL-2.0+`
			`*/`

			`#ifndef I386_CPU_PARAM_H`
Normalize header guard symbol definition We commonly define the header guard symbol without an explicit value. Normalize the exceptions. Done with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220506134911.2856099-4-armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> 2022-05-06 16:49:10 +03:00			`#define I386_CPU_PARAM_H`
tcg: Split out target/arch/cpu-param.h For all targets, into this new file move TARGET_LONG_BITS, TARGET_PAGE_BITS, TARGET_PHYS_ADDR_SPACE_BITS, TARGET_VIRT_ADDR_SPACE_BITS, and NB_MMU_MODES. Include this new file from exec/cpu-defs.h. This now removes the somewhat odd requirement that target/arch/cpu.h defines TARGET_LONG_BITS before including exec/cpu-defs.h, so push the bulk of the includes within target/arch/cpu.h to the top. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2019-03-22 21:51:19 +03:00
			`#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`

target: Define TCG_GUEST_DEFAULT_MO in 'cpu-param.h' accel/tcg/ files requires the following definitions: - TARGET_LONG_BITS - TARGET_PAGE_BITS - TARGET_PHYS_ADDR_SPACE_BITS - TCG_GUEST_DEFAULT_MO The first 3 are defined in "cpu-param.h". The last one in "cpu.h", with a bunch of definitions irrelevant for TCG. By moving the TCG_GUEST_DEFAULT_MO definition to "cpu-param.h", we can simplify various accel/tcg includes. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20231211212003.21686-4-philmd@linaro.org> 2023-12-05 16:31:59 +03:00			`/* The x86 has a strong memory model with some store-after-load re-ordering */`
			`#define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)`

tcg: Split out target/arch/cpu-param.h For all targets, into this new file move TARGET_LONG_BITS, TARGET_PAGE_BITS, TARGET_PHYS_ADDR_SPACE_BITS, TARGET_VIRT_ADDR_SPACE_BITS, and NB_MMU_MODES. Include this new file from exec/cpu-defs.h. This now removes the somewhat odd requirement that target/arch/cpu.h defines TARGET_LONG_BITS before including exec/cpu-defs.h, so push the bulk of the includes within target/arch/cpu.h to the top. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2019-03-22 21:51:19 +03:00			`#endif`