From: Dave Hansen <dave.hansen@linux.intel.com>

All the users of SHARED_KERNEL_PMD are gone. Zap it.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
---

 b/arch/x86/include/asm/pgtable-2level_types.h |    2 --
 b/arch/x86/include/asm/pgtable-3level_types.h |    2 --
 b/arch/x86/include/asm/pgtable_64_types.h     |    2 --
 3 files changed, 6 deletions(-)

diff -puN arch/x86/include/asm/pgtable-2level_types.h~zap-SHARED_KERNEL_PMD arch/x86/include/asm/pgtable-2level_types.h
--- a/arch/x86/include/asm/pgtable-2level_types.h~zap-SHARED_KERNEL_PMD	2025-04-14 09:00:36.905759325 -0700
+++ b/arch/x86/include/asm/pgtable-2level_types.h	2025-04-14 09:00:36.912759582 -0700
@@ -18,8 +18,6 @@ typedef union {
 } pte_t;
 #endif	/* !__ASSEMBLER__ */
 
-#define SHARED_KERNEL_PMD	0
-
 #define ARCH_PAGE_TABLE_SYNC_MASK	PGTBL_PMD_MODIFIED
 
 /*
diff -puN arch/x86/include/asm/pgtable-3level_types.h~zap-SHARED_KERNEL_PMD arch/x86/include/asm/pgtable-3level_types.h
--- a/arch/x86/include/asm/pgtable-3level_types.h~zap-SHARED_KERNEL_PMD	2025-04-14 09:00:36.908759435 -0700
+++ b/arch/x86/include/asm/pgtable-3level_types.h	2025-04-14 09:00:36.913759618 -0700
@@ -27,8 +27,6 @@ typedef union {
 } pmd_t;
 #endif	/* !__ASSEMBLER__ */
 
-#define SHARED_KERNEL_PMD	(!static_cpu_has(X86_FEATURE_PTI))
-
 #define ARCH_PAGE_TABLE_SYNC_MASK	PGTBL_PMD_MODIFIED
 
 /*
diff -puN arch/x86/include/asm/pgtable_64_types.h~zap-SHARED_KERNEL_PMD arch/x86/include/asm/pgtable_64_types.h
--- a/arch/x86/include/asm/pgtable_64_types.h~zap-SHARED_KERNEL_PMD	2025-04-14 09:00:36.910759508 -0700
+++ b/arch/x86/include/asm/pgtable_64_types.h	2025-04-14 09:00:36.913759618 -0700
@@ -46,8 +46,6 @@ extern unsigned int ptrs_per_p4d;
 
 #endif	/* !__ASSEMBLER__ */
 
-#define SHARED_KERNEL_PMD	0
-
 #ifdef CONFIG_X86_5LEVEL
 
 /*
_