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linux-user/aarch64: Implement PR_MTE_TCF and PR_MTE_TAG

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These prctl fields are required for the function of MTE.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210212184902.1251044-24-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-02-12 10:48:54 -08:00 • committed by Peter Maydell
parent 16c8497848
commit bfd0572f43
2 changed files with 52 additions and 0 deletions
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9
linux-user/aarch64/target_syscall.h
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@ -33,5 +33,14 @@ struct target_pt_regs {
#define TARGET_PR_SET_TAGGED_ADDR_CTRL 55
#define TARGET_PR_GET_TAGGED_ADDR_CTRL 56
# define TARGET_PR_TAGGED_ADDR_ENABLE (1UL << 0)
/* MTE tag check fault modes */
# define TARGET_PR_MTE_TCF_SHIFT 1
# define TARGET_PR_MTE_TCF_NONE (0UL << TARGET_PR_MTE_TCF_SHIFT)
# define TARGET_PR_MTE_TCF_SYNC (1UL << TARGET_PR_MTE_TCF_SHIFT)
# define TARGET_PR_MTE_TCF_ASYNC (2UL << TARGET_PR_MTE_TCF_SHIFT)
# define TARGET_PR_MTE_TCF_MASK (3UL << TARGET_PR_MTE_TCF_SHIFT)
/* MTE tag inclusion mask */
# define TARGET_PR_MTE_TAG_SHIFT 3
# define TARGET_PR_MTE_TAG_MASK (0xffffUL << TARGET_PR_MTE_TAG_SHIFT)
#endif /* AARCH64_TARGET_SYSCALL_H */