Merge branch 'linus' into stackprotector

[cascardo/linux.git] / arch / x86 / kernel / relocate_kernel_32.S

diff --git a/arch/x86/kernel/relocate_kernel_32.S b/arch/x86/kernel/relocate_kernel_32.S
index 6f50664..a160f31 100644 (file)
--- a/arch/x86/kernel/relocate_kernel_32.S
+++ b/arch/x86/kernel/relocate_kernel_32.S
@@ -10,15 +10,12 @@
 #include <asm/page.h>
 #include <asm/kexec.h>
 #include <asm/processor-flags.h>
-#include <asm/pgtable.h>
 
 /*
  * Must be relocatable PIC code callable as a C function
  */
 
 #define PTR(x) (x << 2)
-#define PAGE_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define PAE_PGD_ATTR (_PAGE_PRESENT)
 
 /* control_page + KEXEC_CONTROL_CODE_MAX_SIZE
  * ~ control_page + PAGE_SIZE are used as data storage and stack for
@@ -39,7 +36,6 @@
 #define CP_PA_BACKUP_PAGES_MAP DATA(0x1c)
 
        .text
-       .align PAGE_SIZE
        .globl relocate_kernel
 relocate_kernel:
        /* Save the CPU context, used for jumping back */
@@ -60,117 +56,6 @@ relocate_kernel:
        movl    %cr4, %eax
        movl    %eax, CR4(%edi)
 
-#ifdef CONFIG_X86_PAE
-       /* map the control page at its virtual address */
-
-       movl    PTR(VA_PGD)(%ebp), %edi
-       movl    PTR(VA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0xc0000000, %eax
-       shrl    $27, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_PMD_0)(%ebp), %edx
-       orl     $PAE_PGD_ATTR, %edx
-       movl    %edx, (%eax)
-
-       movl    PTR(VA_PMD_0)(%ebp), %edi
-       movl    PTR(VA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0x3fe00000, %eax
-       shrl    $18, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_PTE_0)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-
-       movl    PTR(VA_PTE_0)(%ebp), %edi
-       movl    PTR(VA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0x001ff000, %eax
-       shrl    $9, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-
-       /* identity map the control page at its physical address */
-
-       movl    PTR(VA_PGD)(%ebp), %edi
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0xc0000000, %eax
-       shrl    $27, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_PMD_1)(%ebp), %edx
-       orl     $PAE_PGD_ATTR, %edx
-       movl    %edx, (%eax)
-
-       movl    PTR(VA_PMD_1)(%ebp), %edi
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0x3fe00000, %eax
-       shrl    $18, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_PTE_1)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-
-       movl    PTR(VA_PTE_1)(%ebp), %edi
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0x001ff000, %eax
-       shrl    $9, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-#else
-       /* map the control page at its virtual address */
-
-       movl    PTR(VA_PGD)(%ebp), %edi
-       movl    PTR(VA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0xffc00000, %eax
-       shrl    $20, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_PTE_0)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-
-       movl    PTR(VA_PTE_0)(%ebp), %edi
-       movl    PTR(VA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0x003ff000, %eax
-       shrl    $10, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-
-       /* identity map the control page at its physical address */
-
-       movl    PTR(VA_PGD)(%ebp), %edi
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0xffc00000, %eax
-       shrl    $20, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_PTE_1)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-
-       movl    PTR(VA_PTE_1)(%ebp), %edi
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %eax
-       andl    $0x003ff000, %eax
-       shrl    $10, %eax
-       addl    %edi, %eax
-
-       movl    PTR(PA_CONTROL_PAGE)(%ebp), %edx
-       orl     $PAGE_ATTR, %edx
-       movl    %edx, (%eax)
-#endif
-
-relocate_new_kernel:
        /* read the arguments and say goodbye to the stack */
        movl  20+4(%esp), %ebx /* page_list */
        movl  20+8(%esp), %ebp /* list of pages */