| 52,12 → 52,9 |
|---|
| #define L1_PT_SHIFT 10 |
| #define L2_PT_SHIFT 0 |
| |
| #define L1_PT_ENTRIES 1024 |
| #define L2_PT_ENTRIES 1024 |
| #define L1_OFFSET_MASK 0x3ff |
| #define L2_OFFSET_MASK 0x3ff |
| |
| #define L1_OFFSET_MASK (L1_PT_ENTRIES - 1) |
| #define L2_OFFSET_MASK (L2_PT_ENTRIES - 1) |
| |
| #define PFN2PTL1_OFFSET(pfn) ((pfn >> L1_PT_SHIFT) & L1_OFFSET_MASK) |
| #define PFN2PTL2_OFFSET(pfn) ((pfn >> L2_PT_SHIFT) & L2_OFFSET_MASK) |
| |
| 88,9 → 85,8 |
|---|
| |
| /* Create identity mapping */ |
| pfn_t phys; |
| count_t count = 0; |
| for (phys = start; phys < start + size; phys++) { |
| mmu_update_t updates[L2_PT_ENTRIES]; |
| mmu_update_t updates[1]; |
| pfn_t virt = ADDR2PFN(PA2KA(PFN2ADDR(phys))); |
| |
| size_t ptl1_offset = PFN2PTL1_OFFSET(virt); |
| 113,11 → 109,10 |
|---|
| if (ptl2_base2 == 0) |
| panic("Unable to find page table reference"); |
| |
| updates[count].ptr = (uintptr_t) &ptl2_base2[ptl2_offset2]; |
| updates[count].val = PFN2ADDR(start_info.mfn_list[start]) | L1_PROT; |
| if (xen_mmu_update(updates, count + 1, NULL, DOMID_SELF) < 0) |
| updates[0].ptr = (uintptr_t) &ptl2_base2[ptl2_offset2]; |
| updates[0].val = PFN2ADDR(start_info.mfn_list[start]) | L1_PROT; |
| if (xen_mmu_update(updates, 1, NULL, DOMID_SELF) < 0) |
| panic("Unable to map new page table"); |
| count = 0; |
| |
| mmu_ext.cmd = MMUEXT_PIN_L1_TABLE; |
| mmu_ext.arg1.mfn = start_info.mfn_list[start]; |
| 126,11 → 121,10 |
|---|
| |
| unsigned long *ptl0 = (unsigned long *) PFN2ADDR(start_info.mfn_list[ADDR2PFN(KA2PA(start_info.pt_base))]); |
| |
| updates[count].ptr = (uintptr_t) &ptl0[ptl1_offset]; |
| updates[count].val = PFN2ADDR(start_info.mfn_list[start]) | L2_PROT; |
| if (xen_mmu_update(updates, count + 1, NULL, DOMID_SELF) < 0) |
| updates[0].ptr = (uintptr_t) &ptl0[ptl1_offset]; |
| updates[0].val = PFN2ADDR(start_info.mfn_list[start]) | L2_PROT; |
| if (xen_mmu_update(updates, 1, NULL, DOMID_SELF) < 0) |
| panic("Unable to update PTE for page table"); |
| count = 0; |
| |
| ptl2_base = (unsigned long *) PTE2ADDR(start_info.pt_base[ptl1_offset]); |
| start++; |
| 137,15 → 131,10 |
|---|
| size--; |
| } |
| |
| updates[count].ptr = (uintptr_t) &ptl2_base[ptl2_offset]; |
| updates[count].val = PFN2ADDR(start_info.mfn_list[phys]) | L2_PROT; |
| count++; |
| |
| if ((count == L2_PT_ENTRIES) || (phys + 1 == start + size)) { |
| if (xen_mmu_update(updates, count, NULL, DOMID_SELF) < 0) |
| panic("Unable to update PTE"); |
| count = 0; |
| } |
| updates[0].ptr = (uintptr_t) &ptl2_base[ptl2_offset]; |
| updates[0].val = PFN2ADDR(start_info.mfn_list[phys]) | L2_PROT; |
| if (xen_mmu_update(updates, 1, NULL, DOMID_SELF) < 0) |
| panic("Unable to update PTE"); |
| } |
| |
| zone_create(start, size, start, 0); |