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mm, powerpc, x86: define VM_PKEY_BITx bits if CONFIG_ARCH_HAS_PKEYS is enabled

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VM_PKEY_BITx are defined only if CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
is enabled. Powerpc also needs these bits. Hence lets define the
VM_PKEY_BITx bits for any architecture that enables
CONFIG_ARCH_HAS_PKEYS.

Reviewed-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Ram Pai
2018-03-27 02:09:26 -07:00
committed by Michael Ellerman
parent 6da6c0db53
commit 5212213aa5
3 changed files with 9 additions and 6 deletions
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2
arch/powerpc/include/asm/pkeys.h
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@@ -26,6 +26,8 @@ extern u32 initial_allocation_mask; /* bits set for reserved keys */
# define VM_PKEY_BIT2 VM_HIGH_ARCH_2
# define VM_PKEY_BIT3 VM_HIGH_ARCH_3
# define VM_PKEY_BIT4 VM_HIGH_ARCH_4
#elif !defined(VM_PKEY_BIT4)
# define VM_PKEY_BIT4 VM_HIGH_ARCH_4
#endif
#define ARCH_VM_PKEY_FLAGS (VM_PKEY_BIT0 | VM_PKEY_BIT1 | VM_PKEY_BIT2 | \