Reiji Watanabe c7f0c087d4 arm64: mte: DC {GVA,GZVA} shouldn't be used when DCZID_EL0.DZP == 1 ... [ Upstream commit 685e2564da ] Currently, mte_set_mem_tag_range() and mte_zero_clear_page_tags() use DC {GVA,GZVA} unconditionally. But, they should make sure that DCZID_EL0.DZP, which indicates whether or not use of those instructions is prohibited, is zero when using those instructions. Use ST{G,ZG,Z2G} instead when DCZID_EL0.DZP == 1. Fixes: 013bb59dbb ("arm64: mte: handle tags zeroing at page allocation time") Fixes: 3d0cca0b02 ("kasan: speed up mte_set_mem_tag_range") Signed-off-by: Reiji Watanabe <reijiw@google.com> Link: https://lore.kernel.org/r/20211206004736.1520989-3-reijiw@google.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-01-27 11:03:28 +01:00
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Makefile	arch: remove compat_alloc_user_space	2021-09-08 15:32:35 -07:00
clear_page.S	arm64: clear_page() shouldn't use DC ZVA when DCZID_EL0.DZP == 1	2022-01-27 11:03:28 +01:00
clear_user.S	…
copy_from_user.S	arm64: Avoid premature usercopy failure	2021-07-15 17:29:14 +01:00
copy_page.S	…
copy_template.S	…
copy_to_user.S	arm64: Avoid premature usercopy failure	2021-07-15 17:29:14 +01:00
crc32.S	…
csum.c	…
delay.c	…
error-inject.c	…
insn.c	arm64: use __func__ to get function name in pr_err	2021-07-30 16:26:16 +01:00
kasan_sw_tags.S	…
memchr.S	…
memcmp.S	…
memcpy.S	…
memset.S	…
mte.S	arm64: mte: DC {GVA,GZVA} shouldn't be used when DCZID_EL0.DZP == 1	2022-01-27 11:03:28 +01:00
strchr.S	…
strcmp.S	arm64: Mitigate MTE issues with str{n}cmp()	2021-09-21 14:50:19 +01:00
strlen.S	arm64: fix strlen() with CONFIG_KASAN_HW_TAGS	2021-07-12 13:36:22 +01:00
strncmp.S	arm64: Mitigate MTE issues with str{n}cmp()	2021-09-21 14:50:19 +01:00
strnlen.S	…
strrchr.S	…
tishift.S	…
uaccess_flushcache.c	…
xor-neon.c	…