| Message ID | 20180110121142.18291-5-ard.biesheuvel@linaro.org |
|---|---|
| State | Accepted |
| Commit | eec7d4593a0c922c2d12649a373825cfa65c17ea |
| Headers | show |
| Series | arm64: move literal data into .rodata section | expand |
diff --git a/arch/arm64/crypto/crc32-ce-core.S b/arch/arm64/crypto/crc32-ce-core.S index 18f5a8442276..16ed3c7ebd37 100644 --- a/arch/arm64/crypto/crc32-ce-core.S +++ b/arch/arm64/crypto/crc32-ce-core.S @@ -50,7 +50,7 @@ #include <linux/linkage.h> #include <asm/assembler.h> - .text + .section ".rodata", "a" .align 6 .cpu generic+crypto+crc @@ -115,12 +115,13 @@ * uint crc32_pmull_le(unsigned char const *buffer, * size_t len, uint crc32) */ + .text ENTRY(crc32_pmull_le) - adr x3, .Lcrc32_constants + adr_l x3, .Lcrc32_constants b 0f ENTRY(crc32c_pmull_le) - adr x3, .Lcrc32c_constants + adr_l x3, .Lcrc32c_constants 0: bic LEN, LEN, #15 ld1 {v1.16b-v4.16b}, [BUF], #0x40
Move CRC32 literal data to the .rodata section where it is safe from being exploited by speculative execution. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> --- arch/arm64/crypto/crc32-ce-core.S | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) -- 2.11.0