[PATCH v5 02/30] x86/mm: add ARCH_PKEY_BITS to Kconfig

The new config option specifies how many bits are in each PKEY.

Signed-off-by: Joey Gouly joey.gouly@arm.com Cc: Thomas Gleixner tglx@linutronix.de Cc: Ingo Molnar mingo@redhat.com Cc: Borislav Petkov bp@alien8.de Cc: Dave Hansen dave.hansen@linux.intel.com Cc: H. Peter Anvin hpa@zytor.com Cc: x86@kernel.org Acked-by: Dave Hansen dave.hansen@linux.intel.com --- arch/x86/Kconfig | 4 ++++ 1 file changed, 4 insertions(+)

diff --git arch/x86/Kconfig arch/x86/Kconfig index 007bab9f2a0e..683c0a64efe2 100644 --- arch/x86/Kconfig +++ arch/x86/Kconfig @@ -1889,6 +1889,10 @@ config X86_INTEL_MEMORY_PROTECTION_KEYS

If unsure, say y.

+config ARCH_PKEY_BITS + int + default 4 + choice prompt "TSX enable mode" depends on CPU_SUP_INTEL