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| author | Catalin Marinas <catalin.marinas@arm.com> | 2016-07-01 18:25:31 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-11-21 18:48:55 +0000 |
| commit | ba42822af1c287f038aa550f3578c61c212a892e (patch) | |
| tree | 7697e71a152e5294568b1a43695adcfeac08f166 /scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h | |
| parent | 9cf09d68b89ae5fe0261dcc69464bcc676900af6 (diff) | |
arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN
This patch adds the Kconfig option to enable support for TTBR0 PAN
emulation. The option is default off because of a slight performance hit
when enabled, caused by the additional TTBR0_EL1 switching during user
access operations or exception entry/exit code.
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h')
0 files changed, 0 insertions, 0 deletions