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07efa91ae9
Disable CONFIG_ARM64_BTI_KERNEL since significant overhead has been observed on systems that don't have BTI/PAC hardware support due to increased number of NOPs added by these features. BTI is not as important in kernels that have CFI enabled because the protection these features offer overlap. Keep PAC enabled and also enable dynamic SCS (CONFIG_UNWIND_PATCH_PAC_INTO_SCS) which is available starting in v6.2. This removes SCS overhead on systems that support PAC, and PAC overhead on systems that need SCS instead. This feature uses runtime code patching, so it won't have the overhead of additional NOPs. Bug: 267119345 Change-Id: Ifc7d5e502940bd15d13e7f89c5facd10b6c7b8a8 Signed-off-by: Todd Kjos <tkjos@google.com>