diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/paravirt.h | 19 | ||||
| -rw-r--r-- | include/asm-x86/pgalloc.h | 4 |
2 files changed, 22 insertions, 1 deletions
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 41f5447efd88..5467e2cff4bc 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -219,7 +219,14 @@ struct pv_mmu_ops { void (*flush_tlb_others)(const cpumask_t *cpus, struct mm_struct *mm, unsigned long va); - /* Hooks for allocating/releasing pagetable pages */ + /* Hooks for allocating and freeing a pagetable top-level */ + int (*pgd_alloc)(struct mm_struct *mm); + void (*pgd_free)(struct mm_struct *mm, pgd_t *pgd); + + /* + * Hooks for allocating/releasing pagetable pages when they're + * attached to a pagetable + */ 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); @@ -925,6 +932,16 @@ static inline void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, PVOP_VCALL3(pv_mmu_ops.flush_tlb_others, &cpumask, mm, va); } +static inline int paravirt_pgd_alloc(struct mm_struct *mm) +{ + return PVOP_CALL1(int, pv_mmu_ops.pgd_alloc, mm); +} + +static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd) +{ + PVOP_VCALL2(pv_mmu_ops.pgd_free, mm, pgd); +} + static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned pfn) { PVOP_VCALL2(pv_mmu_ops.alloc_pte, mm, pfn); diff --git a/include/asm-x86/pgalloc.h b/include/asm-x86/pgalloc.h index 91e4641f3f31..d63ea431cb3b 100644 --- a/include/asm-x86/pgalloc.h +++ b/include/asm-x86/pgalloc.h @@ -5,9 +5,13 @@ #include <linux/mm.h> /* for struct page */ #include <linux/pagemap.h> +static inline int __paravirt_pgd_alloc(struct mm_struct *mm) { return 0; } + #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else +#define paravirt_pgd_alloc(mm) __paravirt_pgd_alloc(mm) +static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd) {} static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned long pfn) {} static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn) {} static inline void paravirt_alloc_pmd_clone(unsigned long pfn, unsigned long clonepfn, |