diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/paravirt.h | 14 | ||||
| -rw-r--r-- | include/asm-i386/pgalloc.h | 30 |
2 files changed, 40 insertions, 4 deletions
diff --git a/include/asm-i386/paravirt.h b/include/asm-i386/paravirt.h index 9f06265065f..53da276a2ec 100644 --- a/include/asm-i386/paravirt.h +++ b/include/asm-i386/paravirt.h @@ -127,6 +127,12 @@ struct paravirt_ops void (fastcall *flush_tlb_kernel)(void); void (fastcall *flush_tlb_single)(u32 addr); + void (fastcall *alloc_pt)(u32 pfn); + void (fastcall *alloc_pd)(u32 pfn); + void (fastcall *alloc_pd_clone)(u32 pfn, u32 clonepfn, u32 start, u32 count); + void (fastcall *release_pt)(u32 pfn); + void (fastcall *release_pd)(u32 pfn); + void (fastcall *set_pte)(pte_t *ptep, pte_t pteval); void (fastcall *set_pte_at)(struct mm_struct *mm, u32 addr, pte_t *ptep, pte_t pteval); void (fastcall *set_pmd)(pmd_t *pmdp, pmd_t pmdval); @@ -320,6 +326,14 @@ static inline unsigned long apic_read(unsigned long reg) #define __flush_tlb_global() paravirt_ops.flush_tlb_kernel() #define __flush_tlb_single(addr) paravirt_ops.flush_tlb_single(addr) +#define paravirt_alloc_pt(pfn) paravirt_ops.alloc_pt(pfn) +#define paravirt_release_pt(pfn) paravirt_ops.release_pt(pfn) + +#define paravirt_alloc_pd(pfn) paravirt_ops.alloc_pd(pfn) +#define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) \ + paravirt_ops.alloc_pd_clone(pfn, clonepfn, start, count) +#define paravirt_release_pd(pfn) paravirt_ops.release_pd(pfn) + static inline void set_pte(pte_t *ptep, pte_t pteval) { paravirt_ops.set_pte(ptep, pteval); diff --git a/include/asm-i386/pgalloc.h b/include/asm-i386/pgalloc.h index 4b1e61359f8..c8dc2d0141a 100644 --- a/include/asm-i386/pgalloc.h +++ b/include/asm-i386/pgalloc.h @@ -5,13 +5,31 @@ #include <linux/threads.h> #include <linux/mm.h> /* for struct page */ -#define pmd_populate_kernel(mm, pmd, pte) \ - set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) +#ifdef CONFIG_PARAVIRT +#include <asm/paravirt.h> +#else +#define paravirt_alloc_pt(pfn) do { } while (0) +#define paravirt_alloc_pd(pfn) do { } while (0) +#define paravirt_alloc_pd(pfn) do { } while (0) +#define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) do { } while (0) +#define paravirt_release_pt(pfn) do { } while (0) +#define paravirt_release_pd(pfn) do { } while (0) +#endif + +#define pmd_populate_kernel(mm, pmd, pte) \ +do { \ + paravirt_alloc_pt(__pa(pte) >> PAGE_SHIFT); \ + set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))); \ +} while (0) #define pmd_populate(mm, pmd, pte) \ +do { \ + paravirt_alloc_pt(page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -32,7 +50,11 @@ static inline void pte_free(struct page *pte) } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + paravirt_release_pt(page_to_pfn(pte)); \ + tlb_remove_page((tlb),(pte)); \ +} while (0) #ifdef CONFIG_X86_PAE /* |