diff options
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/paravirt.h | 4 | ||||
| -rw-r--r-- | include/asm-i386/pgtable.h | 23 |
2 files changed, 23 insertions, 4 deletions
diff --git a/include/asm-i386/paravirt.h b/include/asm-i386/paravirt.h index a35c8148065..e01d895d737 100644 --- a/include/asm-i386/paravirt.h +++ b/include/asm-i386/paravirt.h @@ -131,6 +131,8 @@ struct paravirt_ops void (*flush_tlb_kernel)(void); void (*flush_tlb_single)(u32 addr); + void (fastcall *map_pt_hook)(int type, pte_t *va, u32 pfn); + void (*alloc_pt)(u32 pfn); void (*alloc_pd)(u32 pfn); void (*alloc_pd_clone)(u32 pfn, u32 clonepfn, u32 start, u32 count); @@ -354,6 +356,8 @@ static inline void startup_ipi_hook(int phys_apicid, unsigned long start_eip, #define __flush_tlb_global() paravirt_ops.flush_tlb_kernel() #define __flush_tlb_single(addr) paravirt_ops.flush_tlb_single(addr) +#define paravirt_map_pt_hook(type, va, pfn) paravirt_ops.map_pt_hook(type, va, pfn) + #define paravirt_alloc_pt(pfn) paravirt_ops.alloc_pt(pfn) #define paravirt_release_pt(pfn) paravirt_ops.release_pt(pfn) diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index e6a4723f0eb..c3b58d473a5 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -263,6 +263,7 @@ static inline pte_t pte_mkhuge(pte_t pte) { (pte).pte_low |= _PAGE_PSE; return p */ #define pte_update(mm, addr, ptep) do { } while (0) #define pte_update_defer(mm, addr, ptep) do { } while (0) +#define paravirt_map_pt_hook(slot, va, pfn) do { } while (0) #endif /* @@ -469,10 +470,24 @@ extern pte_t *lookup_address(unsigned long address); #endif #if defined(CONFIG_HIGHPTE) -#define pte_offset_map(dir, address) \ - ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address)) -#define pte_offset_map_nested(dir, address) \ - ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address)) +#define pte_offset_map(dir, address) \ +({ \ + pte_t *__ptep; \ + unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT; \ + __ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE0);\ + paravirt_map_pt_hook(KM_PTE0,__ptep, pfn); \ + __ptep = __ptep + pte_index(address); \ + __ptep; \ +}) +#define pte_offset_map_nested(dir, address) \ +({ \ + pte_t *__ptep; \ + unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT; \ + __ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE1);\ + paravirt_map_pt_hook(KM_PTE1,__ptep, pfn); \ + __ptep = __ptep + pte_index(address); \ + __ptep; \ +}) #define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0) #define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1) #else |