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-rw-r--r--arch/x86/include/asm/pgtable.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index e8875ca75623..9beb371b1adf 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1355,6 +1355,12 @@ static inline pmd_t pmd_swp_clear_soft_dirty(pmd_t pmd)
#define PKRU_WD_BIT 0x2
#define PKRU_BITS_PER_PKEY 2
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+extern u32 init_pkru_value;
+#else
+#define init_pkru_value 0
+#endif
+
static inline bool __pkru_allows_read(u32 pkru, u16 pkey)
{
int pkru_pkey_bits = pkey * PKRU_BITS_PER_PKEY;