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

Signed-off-by: Joey Gouly <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: [email protected]
Acked-by: Dave Hansen <[email protected]>
---
 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
-- 
2.25.1


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