From dbbf89751b14aa5d281bad3af273e9ffaae82262 Mon Sep 17 00:00:00 2001 From: Vitaly Buka Date: Mon, 11 Jul 2022 15:00:28 -0700 Subject: linux-user/aarch64: Reset target data on MADV_DONTNEED aarch64 stores MTE tags in target_date, and they should be reset by MADV_DONTNEED. Signed-off-by: Vitaly Buka Reviewed-by: Richard Henderson Message-Id: <20220711220028.2467290-1-vitalybuka@google.com> [lv: fix code style issues] Signed-off-by: Laurent Vivier --- linux-user/mmap.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'linux-user') diff --git a/linux-user/mmap.c b/linux-user/mmap.c index edceaca..048c413 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -894,6 +894,9 @@ abi_long target_madvise(abi_ulong start, abi_ulong len_in, int advice) if (advice == MADV_DONTNEED && can_passthrough_madv_dontneed(start, end)) { ret = get_errno(madvise(g2h_untagged(start), len, MADV_DONTNEED)); + if (ret == 0) { + page_reset_target_data(start, start + len); + } } mmap_unlock(); -- cgit v1.1