3 files changed, 29 insertions, 16 deletions
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 7bd7766ffab..59425e157df 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -93,9 +93,9 @@ ENTRY(startup_32)
  * where decompression in place becomes safe.
  */
 	pushl	%esi
-	leal	_ebss(%ebp), %esi
-	leal	_ebss(%ebx), %edi
-	movl	$(_ebss - startup_32), %ecx
+	leal	_bss(%ebp), %esi
+	leal	_bss(%ebx), %edi
+	movl	$(_bss - startup_32), %ecx
 	std
 	rep	movsb
 	cld
@@ -125,7 +125,7 @@ relocated:
  * Clear BSS
  */
 	xorl	%eax, %eax
-	leal	_edata(%ebx), %edi
+	leal	_bss(%ebx), %edi
 	leal	_ebss(%ebx), %ecx
 	subl	%edi, %ecx
 	cld
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 26c3def43ac..5bc9052615b 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -253,9 +253,9 @@ ENTRY(startup_64)
  * Copy the compressed kernel to the end of our buffer
  * where decompression in place becomes safe.
  */
-	leaq	_end_before_pgt(%rip), %r8
-	leaq	_end_before_pgt(%rbx), %r9
-	movq	$_end_before_pgt /* - $startup_32 */, %rcx
+	leaq	_bss(%rip), %r8
+	leaq	_bss(%rbx), %r9
+	movq	$_bss /* - $startup_32 */, %rcx
 1:	subq	$8, %r8
 	subq	$8, %r9
 	movq	0(%r8), %rax
@@ -276,8 +276,8 @@ relocated:
  * Clear BSS
  */
 	xorq	%rax, %rax
-	leaq    _edata(%rbx), %rdi
-	leaq    _end_before_pgt(%rbx), %rcx
+	leaq    _bss(%rbx), %rdi
+	leaq    _ebss(%rbx), %rcx
 	subq	%rdi, %rcx
 	cld
 	rep	stosb
@@ -329,3 +329,11 @@ boot_heap:
 boot_stack:
 	.fill BOOT_STACK_SIZE, 1, 0
 boot_stack_end:
+
+/*
+ * Space for page tables (not in .bss so not zeroed)
+ */
+	.section ".pgtable","a",@nobits
+	.balign 4096
+pgtable:
+	.fill 6*4096, 1, 0
diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S
index dbe515e13fe..cc353e1b3ff 100644
--- a/arch/x86/boot/compressed/vmlinux.lds.S
+++ b/arch/x86/boot/compressed/vmlinux.lds.S
@@ -2,6 +2,8 @@ OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT)
 
 #undef i386
 
+#include <asm/page_types.h>
+
 #ifdef CONFIG_X86_64
 OUTPUT_ARCH(i386:x86-64)
 ENTRY(startup_64)
@@ -48,13 +50,16 @@ SECTIONS
 		*(.bss)
 		*(.bss.*)
 		*(COMMON)
-#ifdef CONFIG_X86_64
-		. = ALIGN(8);
-		_end_before_pgt = . ;
-		. = ALIGN(4096);
-		pgtable = . ;
-		. = . + 4096 * 6;
-#endif
+		. = ALIGN(8);	/* For convenience during zeroing */
 		_ebss = .;
 	}
+#ifdef CONFIG_X86_64
+       . = ALIGN(PAGE_SIZE);
+       .pgtable : {
+		_pgtable = . ;
+		*(.pgtable)
+		_epgtable = . ;
+	}
+#endif
+	_end = .;
 }