diff options
Diffstat (limited to 'arch/x86_64/kernel/suspend_asm.S')
| -rw-r--r-- | arch/x86_64/kernel/suspend_asm.S | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/x86_64/kernel/suspend_asm.S b/arch/x86_64/kernel/suspend_asm.S index 4d659e97df10..320b6fb00cca 100644 --- a/arch/x86_64/kernel/suspend_asm.S +++ b/arch/x86_64/kernel/suspend_asm.S @@ -39,12 +39,13 @@ ENTRY(swsusp_arch_suspend) call swsusp_save ret -ENTRY(swsusp_arch_resume) - /* set up cr3 */ - leaq init_level4_pgt(%rip),%rax - subq $__START_KERNEL_map,%rax - movq %rax,%cr3 - +ENTRY(restore_image) + /* switch to temporary page tables */ + movq $__PAGE_OFFSET, %rdx + movq temp_level4_pgt(%rip), %rax + subq %rdx, %rax + movq %rax, %cr3 + /* Flush TLB */ movq mmu_cr4_features(%rip), %rax movq %rax, %rdx andq $~(1<<7), %rdx # PGE @@ -69,6 +70,10 @@ loop: movq pbe_next(%rdx), %rdx jmp loop done: + /* go back to the original page tables */ + leaq init_level4_pgt(%rip), %rax + subq $__START_KERNEL_map, %rax + movq %rax, %cr3 /* Flush TLB, including "global" things (vmalloc) */ movq mmu_cr4_features(%rip), %rax movq %rax, %rdx |