int guest_pa_to_host_pa(struct guest_info * guest_info, addr_t guest_pa, addr_t * host_pa) {
- // we use the shadow map here...
- host_region_type_t reg_type = lookup_shadow_map_addr(&(guest_info->mem_map), guest_pa, host_pa);
+ struct v3_shadow_region * shdw_reg = v3_get_shadow_region(guest_info, guest_pa);
- if (reg_type != HOST_REGION_PHYSICAL_MEMORY) {
- PrintError("In GPA->HPA: Could not find address in shadow map (addr=%p) (reg_type=%d)\n",
- (void *)guest_pa, reg_type);
+ *host_pa = v3_get_shadow_addr(shdw_reg, guest_pa);
+
+ if ((shdw_reg == NULL) ||
+ (shdw_reg->host_type == SHDW_REGION_INVALID) ||
+ (shdw_reg->host_type == SHDW_REGION_FULL_HOOK)){
+ PrintError("In GPA->HPA: Could not find address in shadow map (addr=%p) (reg_type=%s)\n",
+ (void *)guest_pa, v3_shdw_region_type_to_str(shdw_reg->host_type));
return -1;
}
int guest_va_to_guest_pa(struct guest_info * guest_info, addr_t guest_va, addr_t * guest_pa) {
+ v3_reg_t guest_cr3 = 0;
+
if (guest_info->mem_mode == PHYSICAL_MEM) {
// guest virtual address is the same as the physical
*guest_pa = guest_va;
return 0;
}
+ if (guest_info->shdw_pg_mode == SHADOW_PAGING) {
+ guest_cr3 = guest_info->shdw_pg_state.guest_cr3;
+ } else {
+ guest_cr3 = guest_info->ctrl_regs.cr3;
+ }
// Guest Is in Paged mode
switch (guest_info->cpu_mode) {
case PROTECTED:
- {
- addr_t tmp_pa = 0;
- pde32_t * pde = 0;
- addr_t guest_pde = 0;
-
- if (guest_info->shdw_pg_mode == SHADOW_PAGING) {
- guest_pde = CR3_TO_PDE32_PA((void *)(addr_t)(guest_info->shdw_pg_state.guest_cr3));
- } else if (guest_info->shdw_pg_mode == NESTED_PAGING) {
- guest_pde = CR3_TO_PDE32_PA((void *)(addr_t)(guest_info->ctrl_regs.cr3));
- }
-
- if (guest_pa_to_host_va(guest_info, guest_pde, (addr_t *)&pde) == -1) {
- PrintError("In GVA->GPA: Invalid GPA(%p)->HVA PDE32 lookup\n",
- (void *)guest_pde);
- return -1;
- }
-
-
- switch (pde32_lookup(pde, guest_va, &tmp_pa)) {
- case PT_ENTRY_NOT_PRESENT:
- *guest_pa = 0;
- return -1;
- case PT_ENTRY_LARGE_PAGE:
- *guest_pa = tmp_pa;
- return 0;
- case PT_ENTRY_PAGE:
- {
- pte32_t * pte = 0;
-
-
- if (guest_pa_to_host_va(guest_info, tmp_pa, (addr_t*)&pte) == -1) {
- PrintError("In GVA->GPA: Invalid GPA(%p)->HVA PTE32 lookup\n",
- (void *)guest_pa);
- return -1;
- }
-
- //PrintDebug("PTE host addr=%x, GVA=%x, GPA=%x(should be 0)\n", pte, guest_va, *guest_pa);
-
- if (pte32_lookup(pte, guest_va, guest_pa) != PT_ENTRY_PAGE) {
- PrintError("In GVA->GPA: PTE32 Lookup failure GVA=%p; PTE=%p\n",
- (void *)guest_va, (void *)pte);
- // PrintPT32(PDE32_INDEX(guest_va) << 22, pte);
- return -1;
- }
-
- return 0;
- }
- default:
- return -1;
- }
+ if (v3_translate_guest_pt_32(guest_info, guest_cr3, guest_va, guest_pa) == -1) {
+ PrintDebug("Could not translate addr (%p) through 32 bit guest PT at %p\n",
+ (void *)guest_va, (void *)(addr_t)guest_cr3);
+ return -1;
}
+ break;
case PROTECTED_PAE:
- {
- // Fill in
+ if (v3_translate_guest_pt_32pae(guest_info, guest_cr3, guest_va, guest_pa) == -1) {
+ PrintDebug("Could not translate addr (%p) through 32 bitpae guest PT at %p\n",
+ (void *)guest_va, (void *)(addr_t)guest_cr3);
+ return -1;
}
+ break;
case LONG:
- {
- // Fill in
+ case LONG_32_COMPAT:
+ case LONG_16_COMPAT:
+ if (v3_translate_guest_pt_64(guest_info, guest_cr3, guest_va, guest_pa) == -1) {
+ PrintDebug("Could not translate addr (%p) through 64 bit guest PT at %p\n",
+ (void *)guest_va, (void *)(addr_t)guest_cr3);
+ return -1;
}
+ break;
default:
return -1;
}
-
-
return 0;
}