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target/arm: Record tagged bit for user-only in sve_probe_page 

Fixes a bug in that we were not honoring MTE from user-only
SVE. Copy the user-only MTE logic from allocation_tag_mem
into sve_probe_page.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-07-07 11:36:08 +01:00 committed by Peter Maydell
parent a4f3791143
commit 95047cdeb3
1 changed files with 3 additions and 0 deletions
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3
target/arm/sve_helper.c
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@ -5337,6 +5337,9 @@ bool sve_probe_page(SVEHostPage *info, bool nofault, CPUARMState *env,
#ifdef CONFIG_USER_ONLY
memset(&info->attrs, 0, sizeof(info->attrs));
/* Require both MAP_ANON and PROT_MTE -- see allocation_tag_mem. */
arm_tlb_mte_tagged(&info->attrs) =
(flags & PAGE_ANON) && (flags & PAGE_MTE);
#else
/*
* Find the iotlbentry for addr and return the transaction attributes.