Commit f34d93f3 authored by Catalin Marinas's avatar Catalin Marinas
Browse files

arm64: kasan: Set TCR_EL1.TBID1 when KASAN_HW_TAGS is enabled



Commit 49b3cf03 ("kasan: arm64: set TCR_EL1.TBID1 when enabled") set
the TBID1 bit for the KASAN_SW_TAGS configuration, freeing up 8 bits to
be used by PAC. With in-kernel MTE now in mainline, also set this bit
for the KASAN_HW_TAGS configuration.

Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Acked-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: default avatarAndrey Konovalov <andreyknvl@google.com>
parent e2bba5f9
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+1 −1
Original line number Diff line number Diff line
@@ -46,7 +46,7 @@
#endif

#ifdef CONFIG_KASAN_HW_TAGS
#define TCR_KASAN_HW_FLAGS SYS_TCR_EL1_TCMA1 | TCR_TBI1
#define TCR_KASAN_HW_FLAGS SYS_TCR_EL1_TCMA1 | TCR_TBI1 | TCR_TBID1
#else
#define TCR_KASAN_HW_FLAGS 0
#endif