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charset="UTF-8" From: Ard Biesheuvel Prevent the I-cache from fetching stale data by issuing a barrier after the data cache maintenance completes but before performing the I-cache maintenance. Cc: Signed-off-by: Ard Biesheuvel --- drivers/firmware/efi/libstub/arm64.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/firmware/efi/libstub/arm64.c b/drivers/firmware/efi/libstub/arm64.c index e57cd3de0a00..62fc8e53c8a0 100644 --- a/drivers/firmware/efi/libstub/arm64.c +++ b/drivers/firmware/efi/libstub/arm64.c @@ -107,6 +107,8 @@ void efi_cache_sync_image(unsigned long image_base, base += lsize; size -= lsize; } while (size >= lsize); + + dsb(ish); } asm("ic ialluis"); -- 2.56.0.542.g3ef89b7020-goog