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authorJeremy Fitzhardinge <jeremy@goop.org>2008-03-17 16:37:02 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-24 23:57:31 +0200
commit2761fa0920756dc471d297843646a4a9bca6656f (patch)
tree2c558915fa11e55a3c15d50eeec55e4b4f5419ec /include
parent6944a9c8945212a0cc1de3589736d59ec542c539 (diff)
x86: add pud_alloc for 4-level pagetables
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86/paravirt.h11
-rw-r--r--include/asm-x86/pgalloc.h3
2 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index c4480b9bda5..0f13b945e24 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -223,8 +223,10 @@ struct pv_mmu_ops {
void (*alloc_pte)(struct mm_struct *mm, u32 pfn);
void (*alloc_pmd)(struct mm_struct *mm, u32 pfn);
void (*alloc_pmd_clone)(u32 pfn, u32 clonepfn, u32 start, u32 count);
+ void (*alloc_pud)(struct mm_struct *mm, u32 pfn);
void (*release_pte)(u32 pfn);
void (*release_pmd)(u32 pfn);
+ void (*release_pud)(u32 pfn);
/* Pagetable manipulation functions */
void (*set_pte)(pte_t *ptep, pte_t pteval);
@@ -934,6 +936,15 @@ static inline void paravirt_release_pmd(unsigned pfn)
PVOP_VCALL1(pv_mmu_ops.release_pmd, pfn);
}
+static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned pfn)
+{
+ PVOP_VCALL2(pv_mmu_ops.alloc_pud, mm, pfn);
+}
+static inline void paravirt_release_pud(unsigned pfn)
+{
+ PVOP_VCALL1(pv_mmu_ops.release_pud, pfn);
+}
+
#ifdef CONFIG_HIGHPTE
static inline void *kmap_atomic_pte(struct page *page, enum km_type type)
{
diff --git a/include/asm-x86/pgalloc.h b/include/asm-x86/pgalloc.h
index a25d5402987..60e7f514ea0 100644
--- a/include/asm-x86/pgalloc.h
+++ b/include/asm-x86/pgalloc.h
@@ -11,8 +11,10 @@
#define paravirt_alloc_pte(mm, pfn) do { } while (0)
#define paravirt_alloc_pmd(mm, pfn) do { } while (0)
#define paravirt_alloc_pmd_clone(pfn, clonepfn, start, count) do { } while (0)
+#define paravirt_alloc_pud(mm, pfn) do { } while (0)
#define paravirt_release_pte(pfn) do { } while (0)
#define paravirt_release_pmd(pfn) do { } while (0)
+#define paravirt_release_pud(pfn) do { } while (0)
#endif
/*
@@ -85,6 +87,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
#if PAGETABLE_LEVELS > 3
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
{
+ paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
}