qemu/linux-user/s390x/target_mman.h

/*
 * arch/s390/include/asm/processor.h:
 * TASK_UNMAPPED_BASE           (... : (_REGION2_SIZE >> 1))
 *
 * arch/s390/include/asm/pgtable.h:
 * _REGION2_SIZE                (1UL << _REGION2_SHIFT)
 * _REGION2_SHIFT               42
 */
#define TASK_UNMAPPED_BASE      (1ull << 41)

/*
 * arch/s390/include/asm/elf.h:
 * ELF_ET_DYN_BASE              (STACK_TOP / 3 * 2) & ~((1UL << 32) - 1)
 *
 * arch/s390/include/asm/processor.h:
 * STACK_TOP                    VDSO_LIMIT - VDSO_SIZE - PAGE_SIZE
 * VDSO_LIMIT                   _REGION2_SIZE
 */
#define ELF_ET_DYN_BASE         (((1ull << 42) / 3 * 2) & ~0xffffffffull)

#include "../generic/target_mman.h"
linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h Provide default values that are as close as possible to the values used by the guest's kernel. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2023-08-03 00:29:40 +03:00			`/*`
			`* arch/s390/include/asm/processor.h:`
			`* TASK_UNMAPPED_BASE (... : (_REGION2_SIZE >> 1))`
			`*`
			`* arch/s390/include/asm/pgtable.h:`
			`* _REGION2_SIZE (1UL << _REGION2_SHIFT)`
			`* _REGION2_SHIFT 42`
			`*/`
			`#define TASK_UNMAPPED_BASE (1ull << 41)`

linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h Copy each guest kernel's default value, then bound it against reserved_va or the host address space. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2023-08-03 01:17:33 +03:00			`/*`
			`* arch/s390/include/asm/elf.h:`
			`* ELF_ET_DYN_BASE (STACK_TOP / 3 * 2) & ~((1UL << 32) - 1)`
			`*`
			`* arch/s390/include/asm/processor.h:`
			`* STACK_TOP VDSO_LIMIT - VDSO_SIZE - PAGE_SIZE`
			`* VDSO_LIMIT _REGION2_SIZE`
			`*/`
			`#define ELF_ET_DYN_BASE (((1ull << 42) / 3 * 2) & ~0xffffffffull)`

linux-user: Provide MADV_* definitions Provide MADV_* definitions using target_mman.h header, similar to what kernel does. Most architectures use the same values, with the exception of alpha and hppa. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220906000839.1672934-2-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu> 2022-09-06 03:08:35 +03:00			`#include "../generic/target_mman.h"`