diff options
| author | Christoph Muellner <christoph.muellner@theobroma-systems.com> | 2018-03-20 11:16:02 +0100 |
|---|---|---|
| committer | Christoph Muellner <christoph.muellner@theobroma-systems.com> | 2018-04-27 08:28:29 +0200 |
| commit | 685aaecf4e90f0c1148222e95629ca562e8093db (patch) | |
| tree | 0da2df49a7973f54a7cd0e1fb8fe48e725ce1621 /arch/arm64/include/asm/assembler.h | |
| parent | 5a0f312409eab96928a95598d440cf54b5cf7153 (diff) | |
arm64: Introduce retpoline for aarch64/arm64.linux-4.16.5-amp
This patch adds retpoline support for aarch64.
This includes:
* Kconfig flag CONFIG_RETPOLINE to enable it
* testing for required compiler support
* generation of external retpoline thunk functions
* patches for the arm64 specific assembly code
* Enable /sys/devices/system/cpu/vulnerabilities
* arm64: retpoline: Use kernel's EXPORT_SYMBOL macro.
* arm64: retpoline: Add thunks for x29 and x30.
* arm64: retpoline: Add function signature for symbol versioning.
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Diffstat (limited to 'arch/arm64/include/asm/assembler.h')
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index 3c78835bba94..73e8ecc8e8a5 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -30,6 +30,7 @@ #include <asm/pgtable-hwdef.h> #include <asm/ptrace.h> #include <asm/thread_info.h> +#include <asm/nospec-branch.h> .macro save_and_disable_daif, flags mrs \flags, daif |