[Xen-devel] [PATCH 06 of 36] x86_64: use p??_populate() to attach pages to pagetable

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Use the _populate() functions to attach new pages to a pagetable, to
make sure the right paravirt_ops calls get called.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
 arch/x86/mm/init_64.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -167,7 +167,7 @@
        pud = pud_offset(pgd, vaddr);
        if (pud_none(*pud)) {
                pmd = (pmd_t *) spp_getpage();
-               set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER));
+               pud_populate(&init_mm, pud, pmd);
                if (pmd != pmd_offset(pud, 0)) {
                        printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
                                pmd, pmd_offset(pud, 0));
@@ -177,7 +177,7 @@
        pmd = pmd_offset(pud, vaddr);
        if (pmd_none(*pmd)) {
                pte = (pte_t *) spp_getpage();
-               set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE | _PAGE_USER));
+               pmd_populate_kernel(&init_mm, pmd, pte);
                if (pte != pte_offset_kernel(pmd, 0)) {
                        printk(KERN_ERR "PAGETABLE BUG #02!\n");
                        return;
@@ -389,7 +389,7 @@
                pmd = alloc_low_page(&pmd_phys);
 
                spin_lock(&init_mm.page_table_lock);
-               set_pud(pud, __pud(pmd_phys | _KERNPG_TABLE));
+               pud_populate(&init_mm, pud, __va(pmd_phys));
                last_map_addr = phys_pmd_init(pmd, addr, end);
                spin_unlock(&init_mm.page_table_lock);
 
@@ -591,7 +591,8 @@
                        next = end;
                last_map_addr = phys_pud_init(pud, __pa(start), __pa(next));
                if (!after_bootmem)
-                       set_pgd(pgd_offset_k(start), mk_kernel_pgd(pud_phys));
+                       pgd_populate(&init_mm, pgd_offset_k(start),
+                                    __va(pud_phys));
                unmap_low_page(pud);
        }
 



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