}
-int translate_guest_pt_32(struct guest_info * info, addr_t guest_cr3, addr_t vaddr, addr_t * paddr) {
- addr_t guest_pde_pa = CR3_TO_PDE32_PA((void *)guest_cr3);
+int v3_translate_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr) {
+ addr_t guest_pde_pa = CR3_TO_PDE32_PA(guest_cr3);
pde32_t * guest_pde = 0;
addr_t guest_pte_pa = 0;
return 0;
case PT_ENTRY_PAGE:
{
- pte32_t * guest_pte;
+ pte32_t * guest_pte = NULL;
+
if (guest_pa_to_host_va(info, guest_pte_pa, (addr_t*)&guest_pte) == -1) {
PrintError("Could not get virtual address of Guest PTE32 (PA=%p)\n",
(void *)guest_pte_pa);
return -1;
}
- if (pte32_lookup(guest_pte, vaddr, paddr) == -1) {
+ if (pte32_lookup(guest_pte, vaddr, paddr) == PT_ENTRY_NOT_PRESENT) {
return -1;
}
+
+ return 0;
}
}
- return 0;
+ // should never get here
+ return -1;
+}
+
+
+int v3_translate_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr) {
+ addr_t guest_pdpe_pa = CR3_TO_PDPE32PAE_PA(guest_cr3);
+ pdpe32pae_t * guest_pdpe = 0;
+ addr_t guest_pde_pa = 0;
+
+ 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;
+ }
+
+ switch (pdpe32pae_lookup(guest_pdpe, vaddr, &guest_pde_pa))
+ {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_PAGE:
+ {
+ pde32pae_t * guest_pde = NULL;
+ addr_t guest_pte_pa = 0;
+
+ if (guest_pa_to_host_va(info, guest_pde_pa, (addr_t *)&guest_pde) == -1) {
+ PrintError("Could not get virtual Address of Guest PDE32PAE (PA=%p)\n",
+ (void *)guest_pde_pa);
+ return -1;
+ }
+
+ switch (pde32pae_lookup(guest_pde, vaddr, &guest_pte_pa))
+ {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_LARGE_PAGE:
+ *paddr = guest_pte_pa;
+ return 0;
+ case PT_ENTRY_PAGE:
+ {
+ pte32pae_t * guest_pte = NULL;
+
+ if (guest_pa_to_host_va(info, guest_pte_pa, (addr_t *)&guest_pte) == -1) {
+ PrintError("Could not get virtual Address of Guest PTE32PAE (PA=%p)\n",
+ (void *)guest_pte_pa);
+ return -1;
+ }
+
+ if (pte32pae_lookup(guest_pte, vaddr, paddr) == PT_ENTRY_NOT_PRESENT) {
+ return -1;
+ }
+
+ return 0;
+ }
+ }
+ }
+ default:
+ return -1;
+ }
+
+ // should never get here
+ return -1;
+}
+
+int v3_translate_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr) {
+ addr_t guest_pml4_pa = CR3_TO_PML4E64_PA(guest_cr3);
+ pml4e64_t * guest_pmle = 0;
+ addr_t guest_pdpe_pa = 0;
+
+ if (guest_pa_to_host_va(info, guest_pml4_pa, (addr_t*)&guest_pmle) == -1) {
+ PrintError("Could not get virtual address of Guest PML4E64 (PA=%p)\n",
+ (void *)guest_pml4_pa);
+ return -1;
+ }
+
+ switch (pml4e64_lookup(guest_pmle, vaddr, &guest_pdpe_pa)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_PAGE:
+ {
+ pdpe64_t * guest_pdp = NULL;
+ addr_t guest_pde_pa = 0;
+
+ if (guest_pa_to_host_va(info, guest_pdpe_pa, (addr_t *)&guest_pdp) == -1) {
+ PrintError("Could not get virtual address of Guest PDPE64 (PA=%p)\n",
+ (void *)guest_pdpe_pa);
+ return -1;
+ }
+
+ switch (pdpe64_lookup(guest_pdp, vaddr, &guest_pde_pa)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_LARGE_PAGE:
+ *paddr = 0;
+ PrintError("1 Gigabyte Pages not supported\n");
+ return -1;
+ case PT_ENTRY_PAGE:
+ {
+ pde64_t * guest_pde = NULL;
+ addr_t guest_pte_pa = 0;
+
+ if (guest_pa_to_host_va(info, guest_pde_pa, (addr_t *)&guest_pde) == -1) {
+ PrintError("Could not get virtual address of guest PDE64 (PA=%p)\n",
+ (void *)guest_pde_pa);
+ return -1;
+ }
+
+ switch (pde64_lookup(guest_pde, vaddr, &guest_pte_pa)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_LARGE_PAGE:
+ *paddr = guest_pte_pa;
+ return 0;
+ case PT_ENTRY_PAGE:
+ {
+ pte64_t * guest_pte = NULL;
+
+ if (guest_pa_to_host_va(info, guest_pte_pa, (addr_t *)&guest_pte) == -1) {
+ PrintError("Could not get virtual address of guest PTE64 (PA=%p)\n",
+ (void *)guest_pte_pa);
+ return -1;
+ }
+
+ if (pte64_lookup(guest_pte, vaddr, paddr) == PT_ENTRY_NOT_PRESENT) {
+ return -1;
+ }
+
+ return 0;
+ }
+ }
+ }
+ }
+ }
+ default:
+ return -1;
+ }
+
+ // should never get here
+ return -1;
}
-int translate_host_pt_32(addr_t host_cr3, addr_t vaddr, addr_t * paddr) {
- pde32_t * host_pde = (pde32_t *)CR3_TO_PDE32_VA((void *)host_cr3);
+
+int v3_translate_host_pt_32(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
+ pde32_t * host_pde = (pde32_t *)CR3_TO_PDE32_VA(host_cr3);
pte32_t * host_pte = 0;
switch (pde32_lookup(host_pde, vaddr, (addr_t *)&host_pte)) {
*paddr = (addr_t)host_pte;
return 0;
case PT_ENTRY_PAGE:
- if (pte32_lookup(host_pte, vaddr, paddr) == -1) {
+ if (pte32_lookup(V3_VAddr(host_pte), vaddr, paddr) == PT_ENTRY_NOT_PRESENT) {
return -1;
}
+ return 0;
}
-
- return 0;
+
+ // should never get here
+ return -1;
}
-int translate_host_pt_32pae(addr_t host_cr3, addr_t vaddr, addr_t * paddr) {
+int v3_translate_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
+ pdpe32pae_t * host_pdpe = (pdpe32pae_t *)CR3_TO_PDPE32PAE_VA(host_cr3);
+ pde32pae_t * host_pde = NULL;
+ pte32pae_t * host_pte = NULL;
+ switch (pdpe32pae_lookup(host_pdpe, vaddr, (addr_t *)&host_pde)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_PAGE:
+ switch (pde32pae_lookup(V3_VAddr(host_pde), vaddr, (addr_t *)&host_pte)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_LARGE_PAGE:
+ *paddr = (addr_t)host_pte;
+ return 0;
+ case PT_ENTRY_PAGE:
+ if (pte32pae_lookup(V3_VAddr(host_pte), vaddr, paddr) == PT_ENTRY_NOT_PRESENT) {
+ return -1;
+ }
+ return 0;
+ }
+ default:
+ return -1;
+ }
+ // should never get here
return -1;
}
-int translate_host_pt_64(addr_t host_cr3, addr_t vaddr, addr_t * paddr) {
+int v3_translate_host_pt_64(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
+ pml4e64_t * host_pmle = (pml4e64_t *)CR3_TO_PML4E64_VA(host_cr3);
+ pdpe64_t * host_pdpe = NULL;
+ pde64_t * host_pde = NULL;
+ pte64_t * host_pte = NULL;
+ switch(pml4e64_lookup(host_pmle, vaddr, (addr_t *)&host_pdpe)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_PAGE:
+ switch(pdpe64_lookup(V3_VAddr(host_pdpe), vaddr, (addr_t *)&host_pde)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_LARGE_PAGE:
+ *paddr = 0;
+ PrintError("1 Gigabyte Pages not supported\n");
+ return -1;
+ case PT_ENTRY_PAGE:
+ switch (pde64_lookup(V3_VAddr(host_pde), vaddr, (addr_t *)&host_pte)) {
+ case PT_ENTRY_NOT_PRESENT:
+ *paddr = 0;
+ return -1;
+ case PT_ENTRY_LARGE_PAGE:
+ *paddr = (addr_t)host_pte;
+ return 0;
+ case PT_ENTRY_PAGE:
+ if (pte64_lookup(V3_VAddr(host_pte), vaddr, paddr) == PT_ENTRY_NOT_PRESENT) {
+ return -1;
+ }
+ return 0;
+ }
+ }
+ default:
+ return -1;
+ }
+ // should never get here
return -1;
}
+/*
+ *
+ * Page Table Access Checks
+ *
+ */
+
+
+
+
+
+
+int v3_check_host_pt_32(v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
+ pde32_t * host_pde = (pde32_t *)CR3_TO_PDE32_VA(host_cr3);
+ pte32_t * host_pte = 0;
+
+ int pt_level = 2;
+
+ // Check accessibility of PDE
+ *access_status = v3_can_access_pde32(host_pde, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pde32_lookup(host_pde, vaddr, (addr_t *)&host_pte)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ *access_status = v3_can_access_pte32(V3_VAddr(host_pte), vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ return 0;
+ default:
+ return -1;
+ }
+
+ // should never get here
+ return -1;
+}
+
+int v3_check_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
+ pdpe32pae_t * host_pdpe = (pdpe32pae_t *)CR3_TO_PDPE32PAE_VA(host_cr3);
+ pde32pae_t * host_pde = NULL;
+ pte32pae_t * host_pte = NULL;
+ int pt_level = 3;
+
+ *access_status = v3_can_access_pdpe32pae(host_pdpe, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pdpe32pae_lookup(host_pdpe, vaddr, (addr_t *)&host_pde)) {
+ case PT_ENTRY_PAGE:
+ *access_status = v3_can_access_pde32pae(V3_VAddr(host_pde), vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pde32pae_lookup(V3_VAddr(host_pde), vaddr, (addr_t *)&host_pte)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ *access_status = v3_can_access_pte32pae(V3_VAddr(host_pte), vaddr, access_type);
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+ return 0;
+ default:
+ return -1;
+ }
+ default:
+ return -1;
+ }
+ // should never get here
+ return -1;
+}
+int v3_check_host_pt_64(v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
+ pml4e64_t * host_pmle = (pml4e64_t *)CR3_TO_PML4E64_VA(host_cr3);
+ pdpe64_t * host_pdpe = NULL;
+ pde64_t * host_pde = NULL;
+ pte64_t * host_pte = NULL;
+ int pt_level = 4;
+ *access_status = v3_can_access_pml4e64(host_pmle, vaddr, access_type);
-pt_access_status_t can_access_pde32(pde32_t * pde, addr_t addr, pf_error_t access_type) {
- pde32_t * entry = &pde[PDE32_INDEX(addr)];
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
- if (entry->present == 0) {
- return PT_ACCESS_NOT_PRESENT;
- } else if ((entry->writable == 0) && (access_type.write == 1)) {
- return PT_ACCESS_WRITE_ERROR;
- } else if ((entry->user_page == 0) && (access_type.user == 1)) {
- // Check CR0.WP?
- return PT_ACCESS_USER_ERROR;
+ pt_level--;
+
+ switch(pml4e64_lookup(host_pmle, vaddr, (addr_t *)&host_pdpe)) {
+ case PT_ENTRY_PAGE:
+ *access_status = v3_can_access_pdpe64(V3_VAddr(host_pdpe), vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch(pdpe64_lookup(V3_VAddr(host_pdpe), vaddr, (addr_t *)&host_pde)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ *access_status = v3_can_access_pde64(V3_VAddr(host_pde), vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pde64_lookup(V3_VAddr(host_pde), vaddr, (addr_t *)&host_pte)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ *access_status = v3_can_access_pte64(V3_VAddr(host_pte), vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ return 0;
+ default:
+ return -1;
+ }
+ default:
+ return -1;
+ }
+ default:
+ return -1;
}
- return PT_ACCESS_OK;
+ // should never get here
+ return -1;
}
-pt_access_status_t can_access_pte32(pte32_t * pte, addr_t addr, pf_error_t access_type) {
- pte32_t * entry = &pte[PTE32_INDEX(addr)];
- if (entry->present == 0) {
+
+
+int v3_check_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
+ pf_error_t access_type, pt_access_status_t * access_status) {
+ addr_t guest_pde_pa = CR3_TO_PDE32_PA(guest_cr3);
+ pde32_t * guest_pde = NULL;
+ addr_t guest_pte_pa = 0;
+ int pt_level = 2;
+
+ if (guest_pa_to_host_va(info, guest_pde_pa, (addr_t*)&guest_pde) == -1) {
+ PrintError("Could not get virtual address of Guest PDE32 (PA=%p)\n",
+ (void *)guest_pde_pa);
+ return -1;
+ }
+
+
+ // Check accessibility of PDE
+ *access_status = v3_can_access_pde32(guest_pde, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pde32_lookup(guest_pde, vaddr, &guest_pte_pa)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ {
+ pte32_t * guest_pte = NULL;
+
+ if (guest_pa_to_host_va(info, guest_pte_pa, (addr_t*)&guest_pte) == -1) {
+ PrintError("Could not get virtual address of Guest PTE32 (PA=%p)\n",
+ (void *)guest_pte_pa);
+ return -1;
+ }
+
+ *access_status = v3_can_access_pte32(guest_pte, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+ return 0;
+ }
+ default:
+ return -1;
+ }
+
+ // should never get here
+ return -1;
+}
+
+
+
+
+
+int v3_check_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
+ pf_error_t access_type, pt_access_status_t * access_status) {
+ addr_t guest_pdpe_pa = CR3_TO_PDPE32PAE_PA(guest_cr3);
+ pdpe32pae_t * guest_pdpe = NULL;
+ addr_t guest_pde_pa = 0;
+ int pt_level = 3;
+
+ 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;
+ }
+
+ *access_status = v3_can_access_pdpe32pae(guest_pdpe, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pdpe32pae_lookup(guest_pdpe, vaddr, &guest_pde_pa)) {
+ case PT_ENTRY_PAGE:
+ {
+ pde32pae_t * guest_pde = NULL;
+ addr_t guest_pte_pa = 0;
+
+ if (guest_pa_to_host_va(info, guest_pde_pa, (addr_t *)&guest_pde) == -1) {
+ PrintError("Could not get virtual Address of Guest PDE32PAE (PA=%p)\n",
+ (void *)guest_pde_pa);
+ return -1;
+ }
+
+ *access_status = v3_can_access_pde32pae(guest_pde, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pde32pae_lookup(guest_pde, vaddr, &guest_pte_pa)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ {
+ pte32pae_t * guest_pte = NULL;
+
+ if (guest_pa_to_host_va(info, guest_pte_pa, (addr_t *)&guest_pte) == -1) {
+ PrintError("Could not get virtual Address of Guest PTE32PAE (PA=%p)\n",
+ (void *)guest_pte_pa);
+ return -1;
+ }
+
+ *access_status = v3_can_access_pte32pae(guest_pte, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ return 0;
+ }
+ default:
+ return -1;
+ }
+ }
+ default:
+ return -1;
+ }
+
+ // should never get here
+ return -1;
+}
+
+
+ pte64_t * guest_pte = NULL;
+
+int v3_check_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
+ pf_error_t access_type, pt_access_status_t * access_status) {
+ addr_t guest_pml4_pa = CR3_TO_PML4E64_PA(guest_cr3);
+ pml4e64_t * guest_pmle = NULL;
+ addr_t guest_pdpe_pa = 0;
+ int pt_level = 4;
+
+ if (guest_pa_to_host_va(info, guest_pml4_pa, (addr_t*)&guest_pmle) == -1) {
+ PrintError("Could not get virtual address of Guest PML4E64 (PA=%p)\n",
+ (void *)guest_pml4_pa);
+ return -1;
+ }
+
+ *access_status = v3_can_access_pml4e64(guest_pmle, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch(pml4e64_lookup(guest_pmle, vaddr, &guest_pdpe_pa)) {
+ case PT_ENTRY_PAGE:
+ {
+ pdpe64_t * guest_pdp = NULL;
+ addr_t guest_pde_pa = 0;
+
+ if (guest_pa_to_host_va(info, guest_pdpe_pa, (addr_t *)&guest_pdp) == -1) {
+ PrintError("Could not get virtual address of Guest PDPE64 (PA=%p)\n",
+ (void *)guest_pdpe_pa);
+ return -1;
+ }
+
+ *access_status = v3_can_access_pdpe64(guest_pdp, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch(pdpe64_lookup(guest_pdp, vaddr, &guest_pde_pa)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ {
+ pde64_t * guest_pde = NULL;
+ addr_t guest_pte_pa = 0;
+
+ if (guest_pa_to_host_va(info, guest_pde_pa, (addr_t *)&guest_pde) == -1) {
+ PrintError("Could not get virtual address of guest PDE64 (PA=%p)\n",
+ (void *)guest_pde_pa);
+ return -1;
+ }
+
+ *access_status = v3_can_access_pde64(guest_pde, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ pt_level--;
+
+ switch (pde64_lookup(guest_pde, vaddr, &guest_pte_pa)) {
+ case PT_ENTRY_LARGE_PAGE:
+ return 0;
+ case PT_ENTRY_PAGE:
+ {
+ pte64_t * guest_pte = NULL;
+
+ if (guest_pa_to_host_va(info, guest_pte_pa, (addr_t *)&guest_pte) == -1) {
+ PrintError("Could not get virtual address of guest PTE64 (PA=%p)\n",
+ (void *)guest_pte_pa);
+ return -1;
+ }
+
+ *access_status = v3_can_access_pte64(guest_pte, vaddr, access_type);
+
+ if (*access_status != PT_ACCESS_OK) {
+ return pt_level;
+ }
+
+ return 0;
+ }
+ default:
+ return -1;
+ }
+ }
+ default:
+ return -1;
+ }
+ }
+ default:
+ return -1;
+ }
+
+ // should never get here
+ return -1;
+}
+
+
+
+
+
+static pt_access_status_t can_access_pt_entry(gen_pt_t * pt, pf_error_t access_type) {
+ if (pt->present == 0) {
return PT_ACCESS_NOT_PRESENT;
- } else if ((entry->writable == 0) && (access_type.write == 1)) {
+ } else if ((pt->writable == 0) && (access_type.write == 1)) {
return PT_ACCESS_WRITE_ERROR;
- } else if ((entry->user_page == 0) && (access_type.user == 1)) {
+ } else if ((pt->user_page == 0) && (access_type.user == 1)) {
// Check CR0.WP?
return PT_ACCESS_USER_ERROR;
}
+/*
+ * 32 bit access checks
+ */
+pt_access_status_t inline v3_can_access_pde32(pde32_t * pde, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pde[PDE32_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+pt_access_status_t inline v3_can_access_pte32(pte32_t * pte, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pte[PTE32_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+
+/*
+ * 32 bit PAE access checks
+ */
+pt_access_status_t inline v3_can_access_pdpe32pae(pdpe32pae_t * pdpe, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pdpe[PDPE32PAE_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+pt_access_status_t inline v3_can_access_pde32pae(pde32pae_t * pde, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pde[PDE32PAE_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+pt_access_status_t inline v3_can_access_pte32pae(pte32pae_t * pte, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pte[PTE32PAE_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+/*
+ * 64 Bit access checks
+ */
+pt_access_status_t inline v3_can_access_pml4e64(pml4e64_t * pmle, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pmle[PML4E64_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+pt_access_status_t inline v3_can_access_pdpe64(pdpe64_t * pdpe, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pdpe[PDPE64_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+pt_access_status_t inline v3_can_access_pde64(pde64_t * pde, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pde[PDE32_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+pt_access_status_t inline v3_can_access_pte64(pte64_t * pte, addr_t addr, pf_error_t access_type) {
+ gen_pt_t * entry = (gen_pt_t *)&pte[PTE64_INDEX(addr)];
+ return can_access_pt_entry(entry, access_type);
+}
+
+
+
+
+
+
+
+
+
/* We generate a page table to correspond to a given memory layout
* pulling pages from the mem_list when necessary
}
+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),
+ void * private_data) {
+
+
+}
+
+
+
+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),
+ 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);
+ int i, j;
+
+ if (!callback) {
+ PrintError("Call back was not specified\n");
+ return -1;
+ }
+
+ callback(PAGE_PD32, host_pde, pde_pa, private_data);
+ for (i = 0; i < MAX_PDE32_ENTRIES; i++) {
+ if (host_pde[i].present) {
+ if (host_pde[i].lage_page) {
+ pde32_4MB_t * large_pde = (pde32_4MB_t *)&(host_pde[i]);
+ addr_t large_page_pa = BASE_TO_PAGE_ADDR_4MB(large_pde->page_base_addr);
+
+ callback(PAGE_4MB, V3_VAddr(large_page_pa), large_page_pa, private_data);
+ } else {
+ addr_t pte_pa = BASE_TO_PAGE_ADDR(host_pde[i].pt_base_addr);
+ pte32_t * tmp_pte = (pte32_t *)V3_VAddr(pte_pa);
+
+ callback(PAGE_PT32, 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);
+ callback(PAGE_4KB, V3_VAddr(page_pa), page_pa, private_data);
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+
+
+
+
+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 * private_data) {
+ pdpe32pae_t * host_pdpe = (pdpe32pae_t *)CR3_TO_PDPE32PAE_VA(host_cr3);
+ addr_t pdpe_pa = CR3_TO_PDPE32PAE_PA(host_cr3);
+ int i, j, k;
+
+ if (!callback) {
+ PrintError("Callback was not specified\n");
+ return -1;
+ }
+
+ callback(PAGE_PDP32PAE, host_pdpe, pdpe_pa, private_data);
+
+ for (i = 0; i < MAX_PDPE32PAE_ENTRIES; i++) {
+ if (host_pdpe[i].present) {
+ addr_t pde_pa = BASE_TO_PAGE_ADDR(host_pdpe[i].pd_base_addr);
+ pde32pae_t * tmp_pde = (pde32pae_t *)V3_VAddr(pde_pa);
+
+ callback(PAGE_PD32PAE, 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);
+
+ callback(PAGE_2MB, V3_VAddr(lage_page_pa), lage_page_pa, private_data);
+ } else {
+ addr_t pte_pa = BASE_TO_PAGE_ADDR(tmp_pde[j].pt_base_addr);
+ pte32pae_t * tmp_pte = (pte32pae_t *)V3_VAddr(pte_pa);
+
+ callback(PAGE_PT32PAE, 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);
+ callback(PAGE_4KB, V3_VAddr(page_pa), page_pa, private_data);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+
+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 * private_data) {
+ pml4e64_t * host_pml = (pml3e64_t *)CR3_TO_PML4E64_VA(host_cr3);
+ addr_t pml_pa = CR3_TO_PML4E64_PA(host_cr3);
+ int i, j, k, m;
+
+ if (!callback) {
+ PrintError("Callback was not specified\n");
+ return -1;
+ }
+
+ callback(PAGE_PML464, host_pml, pml_pa, private_data);
+
+ for (i = 0; i < MAX_PML4E64_ENTRIES; i++) {
+ if (host_pml[i].present) {
+ addr_t pdpe_pa = BASE_TO_PAGE_ADDR(host_pml[i].pdp_base_addr);
+ pdpe64_t * tmp_pdpe = (pdpe64_t *)V3_VAddr(pdpe_pa);
+
+ callback(PAGE_PDP64, 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_pdp = (pdpe64_t *)&(tmp_pdpe[j]);
+ addr_t large_page_pa = BASE_TO_PAGE_ADDR_1GB(large_pdp->page_addr);
+
+ callback(PAGE_1GB, V3_VAddr(large_page_pa), large_page_pa, private_data);
+ } else {
+ addr_t pde_pa = BASE_TO_PAGE_ADDR(tmp_pdpe[j].pd_base_addr);
+ pde64_t * tmp_pde = (pde64_t *)V3_VAddr(pde_pa);
+
+ callback(PAGE_PD64, tmp_pde, pde_pa, private_data);
+
+ for (k = 0; k < MAX_PDE64_ENRIES; 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_addr);
+
+ callback(PAGE_2MB, V3_VAddr(large_page_pa), large_page_pa, private_data);
+ } else {
+ addr_t pte_pa = BASE_TO_PAGE_ADDR(tmp_pde[k].pt_base_addr);
+ pte64_t * tmp_pte = (pte64_t *)V3_VAddr(pte_pa);
+
+ callback(PAGE_PT64, 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);
+ callback(PAGE_4KB, V3_VAddr(page_pa), page_pa, private_data);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}