* The entry addresses could be pointing to either guest physical memory or host physical memory
* Instead we just return the entry address, and a flag to show if it points to a pte or a large page...
*/
-pde32_entry_type_t pde32_lookup(pde32_t * pde, addr_t addr, addr_t * entry) {
- pde32_t * pde_entry = &(pde[PDE32_INDEX(addr)]);
+pde32_entry_type_t pde32_lookup(pde32_t * pd, addr_t addr, addr_t * entry) {
+ pde32_t * pde_entry = &(pd[PDE32_INDEX(addr)]);
if (!pde_entry->present) {
*entry = 0;
*entry += PAGE_OFFSET(addr);
return PDE32_ENTRY_LARGE_PAGE;
} else {
+ *entry = PDE32_T_ADDR(*pde_entry);
return PDE32_ENTRY_PTE32;
}
}
/* Takes a virtual addr (addr) and returns the physical addr (entry) as defined in the page table
*/
-int pte32_lookup(pte32_t * pte, addr_t addr, addr_t * entry) {
- pte32_t * pte_entry = &(pte[PTE32_INDEX(addr)]);
+int pte32_lookup(pte32_t * pt, addr_t addr, addr_t * entry) {
+ pte32_t * pte_entry = &(pt[PTE32_INDEX(addr)]);
if (!pte_entry->present) {
*entry = 0;
+ PrintDebug("Lookup at non present page (index=%d)\n", PTE32_INDEX(addr));
return -1;
} else {
- *entry = PAGE_ADDR(pte_entry->page_base_addr);
- *entry += PAGE_OFFSET(addr);
+ *entry = PTE32_T_ADDR(*pte_entry) + PT32_PAGE_OFFSET(addr);
return 0;
}
int i, j;
struct shadow_map * map = &(guest_info->mem_map);
-
pde32_t * pde = os_hooks->allocate_pages(1);
for (i = 0; i < MAX_PDE32_ENTRIES; i++) {