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linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h

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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>
This commit is contained in:
Richard Henderson 2023-08-02 14:29:40 -07:00
parent c8fb5cf97d
commit 2d708164e0
21 changed files with 167 additions and 14 deletions
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13
linux-user/ppc/target_mman.h
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@ -4,6 +4,19 @@
#define TARGET_MAP_NORESERVE 0x40
#define TARGET_MAP_LOCKED 0x80
/*
* arch/powerpc/include/asm/task_size_64.h
* TASK_UNMAPPED_BASE_USER32 (PAGE_ALIGN(TASK_SIZE_USER32 / 4))
* TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(DEFAULT_MAP_WINDOW_USER64 / 4))
* TASK_SIZE_USER32 (0x0000000100000000UL - (1 * PAGE_SIZE))
* DEFAULT_MAP_WINDOW_USER64 TASK_SIZE_64TB (with 4k pages)
*/
#ifdef TARGET_PPC64
#define TASK_UNMAPPED_BASE 0x0000100000000000ull
#else
#define TASK_UNMAPPED_BASE 0x40000000
#endif
#include "../generic/target_mman.h"
#endif