[PATCH 06/16] x86/mm/ldt: Reserve high address-space range for the LDT

[Joerg Roedel]

From: Joerg Roedel <jroedel@xxxxxxx>

Reserve 2MB/4MB of address space for mapping the LDT to
user-space.

Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
---
 arch/x86/include/asm/pgtable_32_types.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
index ce245b0cdfca..3c30a7fcae68 100644
--- a/arch/x86/include/asm/pgtable_32_types.h
+++ b/arch/x86/include/asm/pgtable_32_types.h
@@ -47,9 +47,12 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
 #define CPU_ENTRY_AREA_BASE				\
 	((FIXADDR_START - PAGE_SIZE * (CPU_ENTRY_AREA_PAGES + 1)) & PMD_MASK)
 
-#define PKMAP_BASE		\
+#define LDT_BASE_ADDR		\
 	((CPU_ENTRY_AREA_BASE - PAGE_SIZE) & PMD_MASK)
 
+#define PKMAP_BASE		\
+	((LDT_BASE_ADDR - PAGE_SIZE) & PMD_MASK)
+
 #ifdef CONFIG_HIGHMEM
 # define VMALLOC_END	(PKMAP_BASE - 2 * PAGE_SIZE)
 #else
-- 
2.13.6