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-rw-r--r--arch/x86/include/asm/mmu.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
index 22fc9fbf1d0a..9cac8c45a647 100644
--- a/arch/x86/include/asm/mmu.h
+++ b/arch/x86/include/asm/mmu.h
@@ -45,6 +45,9 @@ typedef struct {
#ifdef CONFIG_ADDRESS_MASKING
/* Active LAM mode: X86_CR3_LAM_U48 or X86_CR3_LAM_U57 or 0 (disabled) */
unsigned long lam_cr3_mask;
+
+ /* Significant bits of the virtual address. Excludes tag bits. */
+ u64 untag_mask;
#endif
struct mutex lock;