Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


added guest page table walkers
Jack Lange [Fri, 31 Oct 2008 23:05:16 +0000 (18:05 -0500)]
palacios/src/palacios/vmm_paging.c

index 8c5d369..c6db0c0 100644 (file)
@@ -1410,9 +1410,9 @@ pml4e64_t * create_passthrough_pts_64(struct guest_info * info) {
   return pml;
 }
 
-/*
+
 int v3_walk_guest_pt_32(struct guest_info * info,  v3_reg_t guest_cr3,
-                       int (*callback)(int level, addr_t page_va, addr_t page_pa, void private_data),
+                       int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
                        void * private_data) {
   addr_t guest_pde_pa = CR3_TO_PDE32_PA(guest_cr3);
   pde32_t * guest_pde = NULL;
@@ -1429,21 +1429,256 @@ int v3_walk_guest_pt_32(struct guest_info * info,  v3_reg_t guest_cr3,
     return -1;
   }
 
-  callback(PAGE_PD32, guest_pde, guest_pde_pa, private_data);
+  callback(PAGE_PD32, (addr_t)guest_pde, guest_pde_pa, private_data);
 
   for (i = 0; i < MAX_PDE32_ENTRIES; i++) {
-    if (guet_pde[i].present) {
+    if (guest_pde[i].present) {
       if (guest_pde[i].large_page) {
+       pde32_4MB_t * large_pde = (pde32_4MB_t *)&(guest_pde[i]);
+       addr_t large_page_pa = BASE_TO_PAGE_ADDR_4MB(large_pde->page_base_addr);
+       addr_t large_page_va = 0;
+
+       if (guest_pa_to_host_va(info, large_page_pa, &large_page_va) == -1) {
+         PrintError("Could not get virtual address of Guest 4MB Page (PA=%p)\n", 
+                    (void *)large_page_pa);
+         return -1;
+       }
 
+       callback(PAGE_4MB, large_page_va, large_page_pa, private_data);
+      } else {
+       addr_t pte_pa = BASE_TO_PAGE_ADDR(guest_pde[i].pt_base_addr);
+       pte32_t * tmp_pte = NULL;
 
+       if (guest_pa_to_host_va(info, pte_pa, (addr_t *)&tmp_pte) == -1) {
+         PrintError("Could not get virtual address of Guest PTE32 (PA=%p)\n", 
+                    (void *)pte_pa);
+         return -1;
+       }
 
+       callback(PAGE_PT32, (addr_t)tmp_pte, pte_pa, private_data);
+
+       for (j = 0; j < MAX_PTE32_ENTRIES; j++) {
+         if (tmp_pte[j].present) {
+           addr_t page_pa = BASE_TO_PAGE_ADDR(tmp_pte[j].page_base_addr);
+           addr_t page_va = 0;
+
+           if (guest_pa_to_host_va(info, page_pa, &page_va) == -1) {
+             PrintError("Could not get virtual address of Guest 4KB Page (PA=%p)\n", 
+                        (void *)page_pa);
+             return -1;
+           }
+           
+           callback(PAGE_4KB, page_va, page_pa, private_data);
+         }
+       }
+      }
+    }
+  }
+  return 0;
 }
-*/
 
 
+int v3_walk_guest_pt_32pae(struct guest_info * info,  v3_reg_t guest_cr3,
+                          int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
+                          void * private_data) {
+  addr_t guest_pdpe_pa = CR3_TO_PDPE32PAE_PA(guest_cr3);
+  pdpe32pae_t * guest_pdpe = NULL;
+  int i, j, k;
+
+  if (!callback) {
+    PrintError("Call back was not specified\n");
+    return -1;
+  }
+
+  if (guest_pa_to_host_va(info, guest_pdpe_pa, (addr_t *)&guest_pdpe) == -1) {
+    PrintError("Could not get virtual address of Guest PDPE32PAE (PA=%p)\n", 
+              (void *)guest_pdpe_pa);
+    return -1;
+  }
+
+  
+
+  callback(PAGE_PDP32PAE, (addr_t)guest_pdpe, guest_pdpe_pa, private_data);
+
+  for (i = 0; i < MAX_PDPE32PAE_ENTRIES; i++) {
+    if (guest_pdpe[i].present) {
+      addr_t pde_pa = BASE_TO_PAGE_ADDR(guest_pdpe[i].pd_base_addr);
+      pde32pae_t * tmp_pde = NULL;
+
+      if (guest_pa_to_host_va(info, pde_pa, (addr_t *)&tmp_pde) == -1) {
+       PrintError("Could not get virtual address of Guest PDE32PAE (PA=%p)\n", 
+                  (void *)pde_pa);
+       return -1;
+      }
+
+      callback(PAGE_PD32PAE, (addr_t)tmp_pde, pde_pa, private_data);
+      
+      for (j = 0; j < MAX_PDE32PAE_ENTRIES; j++) {
+       if (tmp_pde[j].present) {
+         if (tmp_pde[j].large_page) {
+           pde32pae_2MB_t * large_pde = (pde32pae_2MB_t *)&(tmp_pde[j]);
+           addr_t large_page_pa = BASE_TO_PAGE_ADDR_2MB(large_pde->page_base_addr);
+           addr_t large_page_va = 0;
+           
+           if (guest_pa_to_host_va(info, large_page_pa, &large_page_va) == -1) {
+             PrintError("Could not get virtual address of Guest 2MB Page (PA=%p)\n", 
+                        (void *)large_page_pa);
+             return -1;
+           }
+           
+           callback(PAGE_2MB, large_page_va, large_page_pa, private_data);
+         } else {
+           addr_t pte_pa = BASE_TO_PAGE_ADDR(tmp_pde[j].pt_base_addr);
+           pte32pae_t * tmp_pte = NULL;
+           
+           if (guest_pa_to_host_va(info, pte_pa, (addr_t *)&tmp_pte) == -1) {
+             PrintError("Could not get virtual address of Guest PTE32PAE (PA=%p)\n", 
+                        (void *)pte_pa);
+             return -1;
+           }
+           
+           callback(PAGE_PT32PAE, (addr_t)tmp_pte, pte_pa, private_data);
+           
+           for (k = 0; k < MAX_PTE32PAE_ENTRIES; k++) {
+             if (tmp_pte[k].present) {
+               addr_t page_pa = BASE_TO_PAGE_ADDR(tmp_pte[k].page_base_addr);
+               addr_t page_va = 0;
+               
+               if (guest_pa_to_host_va(info, page_pa, &page_va) == -1) {
+                 PrintError("Could not get virtual address of Guest 4KB Page (PA=%p)\n", 
+                            (void *)page_pa);
+                 return -1;
+               }
+               
+               callback(PAGE_4KB, page_va, page_pa, private_data);
+             }
+           }
+         }
+       }
+      }
+    }
+  }
+  return 0;
+}
+
+
+
+
+int v3_walk_guest_pt_64(struct guest_info * info,  v3_reg_t guest_cr3,
+                       int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
+                       void * private_data) {
+  addr_t guest_pml_pa = CR3_TO_PML4E64_PA(guest_cr3);
+  pml4e64_t * guest_pml = NULL;
+  int i, j, k, m;
+
+  if (!callback) {
+    PrintError("Call back was not specified\n");
+    return -1;
+  }
+
+  if (guest_pa_to_host_va(info, guest_pml_pa, (addr_t *)&guest_pml) == -1) {
+    PrintError("Could not get virtual address of Guest PML464 (PA=%p)\n", 
+              (void *)guest_pml);
+    return -1;
+  }
+
+
+  callback(PAGE_PML464, (addr_t)guest_pml, guest_pml_pa, private_data);
+
+  for (i = 0; i < MAX_PML4E64_ENTRIES; i++) {
+    if (guest_pml[i].present) {
+      addr_t pdpe_pa = BASE_TO_PAGE_ADDR(guest_pml[i].pdp_base_addr);
+      pdpe64_t * tmp_pdpe = NULL;
+      
+      
+      if (guest_pa_to_host_va(info, pdpe_pa, (addr_t *)&tmp_pdpe) == -1) {
+       PrintError("Could not get virtual address of Guest PDPE64 (PA=%p)\n", 
+                  (void *)pdpe_pa);
+       return -1;
+      }
+      
+      callback(PAGE_PDP64, (addr_t)tmp_pdpe, pdpe_pa, private_data);
+      
+      for (j = 0; j < MAX_PDPE64_ENTRIES; j++) {
+       if (tmp_pdpe[j].present) {
+         if (tmp_pdpe[j].large_page) {
+           pdpe64_1GB_t * large_pdpe = (pdpe64_1GB_t *)&(tmp_pdpe[j]);
+           addr_t large_page_pa = BASE_TO_PAGE_ADDR_1GB(large_pdpe->page_base_addr);
+           addr_t large_page_va = 0;
+
+           if (guest_pa_to_host_va(info, large_page_pa, &large_page_va) == -1) {
+             PrintError("Could not get virtual address of Guest 1GB page (PA=%p)\n", 
+                        (void *)large_page_pa);
+             return -1;
+           }
+
+           callback(PAGE_1GB, (addr_t)large_page_va, large_page_pa, private_data);
+
+         } else {
+           addr_t pde_pa = BASE_TO_PAGE_ADDR(tmp_pdpe[j].pd_base_addr);
+           pde64_t * tmp_pde = NULL;
+           
+           if (guest_pa_to_host_va(info, pde_pa, (addr_t *)&tmp_pde) == -1) {
+             PrintError("Could not get virtual address of Guest PDE64 (PA=%p)\n", 
+                        (void *)pde_pa);
+             return -1;
+           }
+           
+           callback(PAGE_PD64, (addr_t)tmp_pde, pde_pa, private_data);
+           
+           for (k = 0; k < MAX_PDE64_ENTRIES; k++) {
+             if (tmp_pde[k].present) {
+               if (tmp_pde[k].large_page) {
+                 pde64_2MB_t * large_pde = (pde64_2MB_t *)&(tmp_pde[k]);
+                 addr_t large_page_pa = BASE_TO_PAGE_ADDR_2MB(large_pde->page_base_addr);
+                 addr_t large_page_va = 0;
+                 
+                 if (guest_pa_to_host_va(info, large_page_pa, &large_page_va) == -1) {
+                   PrintError("Could not get virtual address of Guest 2MB page (PA=%p)\n", 
+                              (void *)large_page_pa);
+                   return -1;
+                 }
+                 
+                 callback(PAGE_2MB, large_page_va, large_page_pa, private_data);
+               } else {
+                 addr_t pte_pa = BASE_TO_PAGE_ADDR(tmp_pde[k].pt_base_addr);
+                 pte64_t * tmp_pte = NULL;
+                 
+                 if (guest_pa_to_host_va(info, pte_pa, (addr_t *)&tmp_pte) == -1) {
+                   PrintError("Could not get virtual address of Guest PTE64 (PA=%p)\n", 
+                              (void *)pte_pa);
+                   return -1;
+                 }
+                 
+                 callback(PAGE_PT64, (addr_t)tmp_pte, pte_pa, private_data);
+                 
+                 for (m = 0; m < MAX_PTE64_ENTRIES; m++) {
+                   if (tmp_pte[m].present) {
+                     addr_t page_pa = BASE_TO_PAGE_ADDR(tmp_pte[m].page_base_addr);
+                     addr_t page_va = 0;
+                     
+                     if (guest_pa_to_host_va(info, page_pa, &page_va) == -1) {
+                       PrintError("Could not get virtual address of Guest 4KB Page (PA=%p)\n", 
+                                  (void *)page_pa);
+                       return -1;
+                     }
+                     
+                     callback(PAGE_4KB, page_va, page_pa, private_data);
+                   }
+                 }
+               }
+             }
+           }
+         }
+       }
+      }
+    }
+  }
+  return 0;
+}
 
 int v3_walk_host_pt_32(v3_reg_t host_cr3,
-                      int (*callback)(int level, addr_t page_va, addr_t page_pa, void * private_data),
+                      int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
                       void * private_data) {
   pde32_t * host_pde = (pde32_t *)CR3_TO_PDE32_VA(host_cr3);
   addr_t pde_pa = CR3_TO_PDE32_PA(host_cr3);
@@ -1486,7 +1721,7 @@ int v3_walk_host_pt_32(v3_reg_t host_cr3,
 
 
 int v3_walk_host_pt_32pae(v3_reg_t host_cr3,
-                         void (*callback)(page_type_t type, addr_t page_va, addr_t page_pa, void * private_data),
+                         void (*callback)(page_type_t type, addr_t page_ptr, addr_t page_pa, void * private_data),
                          void * private_data) {
   pdpe32pae_t * host_pdpe = (pdpe32pae_t *)CR3_TO_PDPE32PAE_VA(host_cr3);
   addr_t pdpe_pa = CR3_TO_PDPE32PAE_PA(host_cr3);
@@ -1536,7 +1771,7 @@ int v3_walk_host_pt_32pae(v3_reg_t host_cr3,
                        
 
 int v3_walk_host_pt_64(v3_reg_t host_cr3,
-                      void (*callback)(page_type_t type, addr_t page_va, addr_t page_pa, void * private_data),
+                      void (*callback)(page_type_t type, addr_t page_ptr, addr_t page_pa, void * private_data),
                       void * private_data) {
   pml4e64_t * host_pml = (pml4e64_t *)CR3_TO_PML4E64_VA(host_cr3);
   addr_t pml_pa = CR3_TO_PML4E64_PA(host_cr3);