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authorIngo Molnar <mingo@elte.hu>2009-03-26 21:39:17 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-27 17:28:43 +0100
commit6e15cf04860074ad032e88c306bea656bbdd0f22 (patch)
treec346383bb7563e8d66b2f4a502f875b259c34870 /arch/x86/kernel/relocate_kernel_64.S
parentbe0ea69674ed95e1e98cb3687a241badc756d228 (diff)
parent60db56422043aaa455ac7f858ce23c273220f9d9 (diff)
Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2
Conflicts: arch/parisc/kernel/irq.c arch/x86/include/asm/fixmap_64.h arch/x86/include/asm/setup.h kernel/irq/handle.c Semantic merge: arch/x86/include/asm/fixmap.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/relocate_kernel_64.S')
-rw-r--r--arch/x86/kernel/relocate_kernel_64.S129
1 files changed, 5 insertions, 124 deletions
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index f5afe665a82..d32cfb27a47 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -7,10 +7,10 @@
*/
#include <linux/linkage.h>
-#include <asm/page.h>
+#include <asm/page_types.h>
#include <asm/kexec.h>
#include <asm/processor-flags.h>
-#include <asm/pgtable.h>
+#include <asm/pgtable_types.h>
/*
* Must be relocatable PIC code callable as a C function
@@ -29,122 +29,6 @@ relocate_kernel:
* %rdx start address
*/
- /* map the control page at its virtual address */
-
- movq $0x0000ff8000000000, %r10 /* mask */
- mov $(39 - 3), %cl /* bits to shift */
- movq PTR(VA_CONTROL_PAGE)(%rsi), %r11 /* address to map */
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PGD)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_PUD_0)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
- shrq $9, %r10
- sub $9, %cl
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PUD_0)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_PMD_0)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
- shrq $9, %r10
- sub $9, %cl
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PMD_0)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_PTE_0)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
- shrq $9, %r10
- sub $9, %cl
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PTE_0)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_CONTROL_PAGE)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
- /* identity map the control page at its physical address */
-
- movq $0x0000ff8000000000, %r10 /* mask */
- mov $(39 - 3), %cl /* bits to shift */
- movq PTR(PA_CONTROL_PAGE)(%rsi), %r11 /* address to map */
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PGD)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_PUD_1)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
- shrq $9, %r10
- sub $9, %cl
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PUD_1)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_PMD_1)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
- shrq $9, %r10
- sub $9, %cl
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PMD_1)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_PTE_1)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
- shrq $9, %r10
- sub $9, %cl
-
- movq %r11, %r9
- andq %r10, %r9
- shrq %cl, %r9
-
- movq PTR(VA_PTE_1)(%rsi), %r8
- addq %r8, %r9
- movq PTR(PA_CONTROL_PAGE)(%rsi), %r8
- orq $PAGE_ATTR, %r8
- movq %r8, (%r9)
-
-relocate_new_kernel:
- /* %rdi indirection_page
- * %rsi page_list
- * %rdx start address
- */
-
/* zero out flags, and disable interrupts */
pushq $0
popfq
@@ -156,9 +40,8 @@ relocate_new_kernel:
/* get physical address of page table now too */
movq PTR(PA_TABLE_PAGE)(%rsi), %rcx
- /* switch to new set of page tables */
- movq PTR(PA_PGD)(%rsi), %r9
- movq %r9, %cr3
+ /* Switch to the identity mapped page tables */
+ movq %rcx, %cr3
/* setup a new stack at the end of the physical control page */
lea PAGE_SIZE(%r8), %rsp
@@ -194,9 +77,7 @@ identity_mapped:
jmp 1f
1:
- /* Switch to the identity mapped page tables,
- * and flush the TLB.
- */
+ /* Flush the TLB (needed?) */
movq %rcx, %cr3
/* Do the copies */