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| author | Larry Bassel <larry.bassel@linaro.org> | 2014-05-30 12:34:15 -0700 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-07-10 10:10:21 +0100 |
| commit | 6c81fe7925cc4c42de49e17be21eb86d1173c3a7 (patch) | |
| tree | 386156dd2370309268d9455d09782dc0638428a0 /arch/arm64/Kconfig | |
| parent | 6ab6463aeb5fbc75fa3227befb508fc33b34dbf1 (diff) | |
| download | blackbird-op-linux-6c81fe7925cc4c42de49e17be21eb86d1173c3a7.tar.gz blackbird-op-linux-6c81fe7925cc4c42de49e17be21eb86d1173c3a7.zip | |
arm64: enable context tracking
Make calls to ct_user_enter when the kernel is exited
and ct_user_exit when the kernel is entered (in el0_da,
el0_ia, el0_svc, el0_irq and all of the "error" paths).
These macros expand to function calls which will only work
properly if el0_sync and related code has been rearranged
(in a previous patch of this series).
The calls to ct_user_exit are made after hw debugging has been
enabled (enable_dbg_and_irq).
The call to ct_user_enter is made at the beginning of the
kernel_exit macro.
This patch is based on earlier work by Kevin Hilman.
Save/restore optimizations were also done by Kevin.
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Larry Bassel <larry.bassel@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index f865436096b6..1cb806529393 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -63,6 +63,7 @@ config ARM64 select RTC_LIB select SPARSE_IRQ select SYSCTL_EXCEPTION_TRACE + select HAVE_CONTEXT_TRACKING help ARM 64-bit (AArch64) Linux support. |
