addr_t v2p_ia32e (vmi_instance_t vmi,
addr_t dtb,
addr_t vaddr,
page_info_t *info)
{
uint64_t pml4e = 0, pdpte = 0, pde = 0, pte = 0;
// are we in compatibility mode OR 64-bit mode ???
// validate address based on above (e.g., is it canonical?)
// determine what MAXPHYADDR is
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: lookup vaddr = 0x%.16"PRIx64"\n", vaddr);
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: dtb = 0x%.16"PRIx64"\n", dtb);
pml4e = get_pml4e(vmi, vaddr, dtb, &info->l4_a);
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: pml4e = 0x%.16"PRIx64"\n", pml4e);
if (ENTRY_PRESENT(vmi->os_type, pml4e)) {
info->l4_v = pml4e;
pdpte = get_pdpte_ia32e(vmi, vaddr, pml4e, &info->l3_a);
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: pdpte = 0x%.16"PRIx64"\n", pdpte);
if (ENTRY_PRESENT(vmi->os_type, pdpte)) {
info->l3_v = pdpte;
if (PAGE_SIZE_FLAG(pdpte)) { // pdpte maps a 1GB page
info->paddr = get_gigpage_ia32e(vaddr, pdpte);
info->size = VMI_PS_1GB;
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: 1GB page\n");
}
else {
pde = get_pde_ia32e(vmi, vaddr, pdpte, &info->l2_a);
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: pde = 0x%.16"PRIx64"\n", pde);
}
if (ENTRY_PRESENT(vmi->os_type, pde)) {
info->l2_v = pde;
if (PAGE_SIZE_FLAG(pde)) { // pde maps a 2MB page
info->paddr = get_2megpage_ia32e(vaddr, pde);
info->size = VMI_PS_2MB;
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: 2MB page\n");
}
else {
pte = get_pte_ia32e(vmi, vaddr, pde, &info->l1_a);
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: pte = 0x%.16"PRIx64"\n", pte);
}
if (ENTRY_PRESENT(vmi->os_type, pte)) {
info->l1_v = pte;
info->size = VMI_PS_4KB;
info->paddr = get_paddr_ia32e(vaddr, pte);
}
}
}
}
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: paddr = 0x%.16"PRIx64"\n", info->paddr);
return info->paddr;
}
status_t v2p_ia32e (vmi_instance_t vmi,
addr_t dtb,
addr_t vaddr,
page_info_t *info)
{
status_t status = VMI_FAILURE;
// are we in compatibility mode OR 64-bit mode ???
// validate address based on above (e.g., is it canonical?)
// determine what MAXPHYADDR is
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: lookup vaddr = 0x%.16"PRIx64"\n", vaddr);
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: dtb = 0x%.16"PRIx64"\n", dtb);
status = get_pml4e(vmi, vaddr, dtb, &info->x86_ia32e.pml4e_location, &info->x86_ia32e.pml4e_value);
if (status != VMI_SUCCESS) {
goto done;
}
if (!ENTRY_PRESENT(vmi->os_type, info->x86_ia32e.pml4e_value)) {
status = VMI_FAILURE;
goto done;
}
status = get_pdpte_ia32e(vmi, vaddr, info->x86_ia32e.pml4e_value, &info->x86_ia32e.pdpte_location,
&info->x86_ia32e.pdpte_value);
if (status != VMI_SUCCESS) {
goto done;
}
if (!ENTRY_PRESENT(vmi->os_type, info->x86_ia32e.pdpte_value)) {
status = VMI_FAILURE;
goto done;
}
if (PAGE_SIZE(info->x86_ia32e.pdpte_value)) { // pdpte maps a 1GB page
info->size = VMI_PS_1GB;
info->paddr = get_gigpage_ia32e(vaddr, info->x86_ia32e.pdpte_value);
status = VMI_SUCCESS;
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: 1GB page\n");
goto done;
}
status = get_pde_ia32e(vmi, vaddr, info->x86_ia32e.pdpte_value, &info->x86_ia32e.pgd_location,
&info->x86_ia32e.pgd_value);
if (status != VMI_SUCCESS) {
goto done;
}
if (!ENTRY_PRESENT(vmi->os_type, info->x86_ia32e.pgd_value)) {
status = VMI_FAILURE;
goto done;
}
if (PAGE_SIZE(info->x86_ia32e.pgd_value)) { // pde maps a 2MB page
info->size = VMI_PS_2MB;
info->paddr = get_2megpage_ia32e(vaddr, info->x86_ia32e.pgd_value);
status = VMI_SUCCESS;
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: 2MB page\n");
goto done;
}
status = get_pte_ia32e(vmi, vaddr, info->x86_ia32e.pgd_value, &info->x86_ia32e.pte_location,
&info->x86_ia32e.pte_value);
if (status != VMI_SUCCESS) {
goto done;
}
if (!ENTRY_PRESENT(vmi->os_type, info->x86_ia32e.pte_value)) {
status = VMI_FAILURE;
goto done;
}
info->size = VMI_PS_4KB;
info->paddr = get_paddr_ia32e(vaddr, info->x86_ia32e.pte_value);
status = VMI_SUCCESS;
done:
dbprint(VMI_DEBUG_PTLOOKUP, "--PTLookup: paddr = 0x%.16"PRIx64"\n", info->paddr);
return status;
}