Vasily Gorbik eed38cd2f4 s390/nospec: generate single register thunks if possible ... Currently assembler generated expoline thunks are always in a form __s390_indirect_jump_rXuse_rX even when exrl instruction is available and no additional register is utilized. Generate __s390_indirect_jump_rX versions using a single register if the kernel is built for z10 or newer machine, which have exrl instruction available. Thunks generated are identical to the ones generated by the compiler. This helps to reduce the number of thunks for newer machines generations. Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>		2022-03-10 15:58:17 +01:00
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asm	s390/nospec: generate single register thunks if possible	2022-03-10 15:58:17 +01:00
uapi/asm	s390/zcrypt: CEX8S exploitation support	2022-03-08 00:33:00 +01:00