X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Finclude%2Fpalacios%2Fvmm_paging.h;h=bce23af678fe53381e480e22cffa2b18623d117f;hb=7f5fe648423f83c0883d6daa3f15751f9e74daf0;hp=41d4b6f4d1b366ad08184079f621d20c606895ac;hpb=5b6278751429f59297ce74e614d50632daea3748;p=palacios.git diff --git a/palacios/include/palacios/vmm_paging.h b/palacios/include/palacios/vmm_paging.h index 41d4b6f..bce23af 100644 --- a/palacios/include/palacios/vmm_paging.h +++ b/palacios/include/palacios/vmm_paging.h @@ -27,6 +27,7 @@ #include #include + /* In the following, when we say "page table", we mean the whole 2 or 4 layer @@ -92,17 +93,24 @@ the host state in the vmcs before entering the guest. -#define MAX_PTE32_ENTRIES 1024 #define MAX_PDE32_ENTRIES 1024 +#define MAX_PTE32_ENTRIES 1024 -#define MAX_PTE32PAE_ENTRIES 512 -#define MAX_PDE32PAE_ENTRIES 512 #define MAX_PDPE32PAE_ENTRIES 4 +#define MAX_PDE32PAE_ENTRIES 512 +#define MAX_PTE32PAE_ENTRIES 512 -#define MAX_PTE64_ENTRIES 512 -#define MAX_PDE64_ENTRIES 512 -#define MAX_PDPE64_ENTRIES 512 #define MAX_PML4E64_ENTRIES 512 +#define MAX_PDPE64_ENTRIES 512 +#define MAX_PDE64_ENTRIES 512 +#define MAX_PTE64_ENTRIES 512 + + +typedef enum {PAGE_4KB, PAGE_2MB, PAGE_4MB, PAGE_1GB, + PAGE_NOT_PRESENT, + PAGE_PT32, PAGE_PD32, + PAGE_PDP32PAE, PAGE_PD32PAE, PAGE_PT32PAE, + PAGE_PML464, PAGE_PDP64, PAGE_PD64, PAGE_PT64} page_type_t; /* Converts an address into a page table index */ @@ -110,51 +118,100 @@ the host state in the vmcs before entering the guest. #define PTE32_INDEX(x) ((((uint_t)x) >> 12) & 0x3ff) +#define PDPE32PAE_INDEX(x) ((((uint_t)x) >> 30) & 0x3) +#define PDE32PAE_INDEX(x) ((((uint_t)x) >> 21) & 0x1ff) +#define PTE32PAE_INDEX(x) ((((uint_t)x) >> 12) & 0x1ff) + +#define PML4E64_INDEX(x) ((((ullong_t)x) >> 39) & 0x1ff) +#define PDPE64_INDEX(x) ((((ullong_t)x) >> 30) & 0x1ff) +#define PDE64_INDEX(x) ((((ullong_t)x) >> 21) & 0x1ff) +#define PTE64_INDEX(x) ((((ullong_t)x) >> 12) & 0x1ff) + + /* Gets the base address needed for a Page Table entry */ /* Deprecate these :*/ -#define PD32_BASE_ADDR(x) (((uint_t)x) >> 12) -#define PT32_BASE_ADDR(x) (((uint_t)x) >> 12) -#define PD32_4MB_BASE_ADDR(x) (((uint_t)x) >> 22) - -#define PML4E64_BASE_ADDR(x) (((ullong_t)x) >> 12) -#define PDPE64_BASE_ADDR(x) (((ullong_t)x) >> 12) -#define PDE64_BASE_ADDR(x) (((ullong_t)x) >> 12) -#define PTE64_BASE_ADDR(x) (((ullong_t)x) >> 12) -/* Accessor functions for the page table structures */ -#define PDE32_T_ADDR(x) (((x).pt_base_addr) << 12) -#define PTE32_T_ADDR(x) (((x).page_base_addr) << 12) -#define PDE32_4MB_T_ADDR(x) (((x).page_base_addr) << 22) - +/* + #define PD32_BASE_ADDR(x) (((uint_t)x) >> 12) + #define PT32_BASE_ADDR(x) (((uint_t)x) >> 12) + #define PD32_4MB_BASE_ADDR(x) (((uint_t)x) >> 22) + + #define PML4E64_BASE_ADDR(x) (((ullong_t)x) >> 12) + #define PDPE64_BASE_ADDR(x) (((ullong_t)x) >> 12) + #define PDE64_BASE_ADDR(x) (((ullong_t)x) >> 12) + #define PTE64_BASE_ADDR(x) (((ullong_t)x) >> 12) + + // Accessor functions for the page table structures + #define PDE32_T_ADDR(x) (((x).pt_base_addr) << 12) + #define PTE32_T_ADDR(x) (((x).page_base_addr) << 12) + #define PDE32_4MB_T_ADDR(x) (((x).page_base_addr) << 22) +*/ /* Replace The above with these... */ -#define PAGE_BASE_ADDR(x) (((uint_t)x) >> 12) -#define LARGE_PAGE_BASE_ADDR(x) (((uint_t)x) >> 22) -#define BASE_TO_PAGE_ADDR(x) (((uint_t)x) << 12) -#define LARGE_BASE_TO_PAGE_ADDR(x) (((uint_t)x) << 22) +#define PAGE_BASE_ADDR(x) ((x) >> 12) +#define PAGE_BASE_ADDR_4KB(x) ((x) >> 12) +#define PAGE_BASE_ADDR_2MB(x) ((x) >> 21) +#define PAGE_BASE_ADDR_4MB(x) ((x) >> 22) +#define PAGE_BASE_ADDR_1GB(x) ((x) >> 30) + +#define BASE_TO_PAGE_ADDR(x) (((addr_t)x) << 12) +#define BASE_TO_PAGE_ADDR_4KB(x) (((addr_t)x) << 12) +#define BASE_TO_PAGE_ADDR_2MB(x) (((addr_t)x) << 21) +#define BASE_TO_PAGE_ADDR_4MB(x) (((addr_t)x) << 22) +#define BASE_TO_PAGE_ADDR_1GB(x) (((addr_t)x) << 30) +/* *** */ + +/* Deprecated */ +/* + #define PT32_PAGE_OFFSET(x) (((uint_t)x) & 0xfff) + #define PD32_4MB_PAGE_OFFSET(x) (((uint_t)x) & 0x003fffff) + + #define PT32_PAGE_ADDR(x) (((uint_t)x) & 0xfffff000) + #define PD32_4MB_PAGE_ADDR(x) (((uint_t)x) & 0xffc00000) + + #define PT32_PAGE_POWER 12 + #define PAGE_ALIGNED_ADDR(x) (((uint_t) (x)) >> 12) + //#define PAGE_ADDR(x) (PAGE_ALIGNED_ADDR(x) << 12) + #define PAGE_POWER 12 + #define PAGE_SIZE 4096 +*/ +/* use these instead */ +#define PAGE_OFFSET(x) ((x) & 0xfff) +#define PAGE_OFFSET_4KB(x) ((x) & 0xfff) +#define PAGE_OFFSET_2MB(x) ((x) & 0x1fffff) +#define PAGE_OFFSET_4MB(x) ((x) & 0x3fffff) +#define PAGE_OFFSET_1GB(x) ((x) & 0x3fffffff) +#define PAGE_POWER 12 +#define PAGE_POWER_4KB 12 +#define PAGE_POWER_2MB 21 +#define PAGE_POWER_4MB 22 +#define PAGE_POWER_1GB 30 + +// We shift instead of mask because we don't know the address size +#define PAGE_ADDR(x) (((x) >> PAGE_POWER) << PAGE_POWER) +#define PAGE_ADDR_4KB(x) (((x) >> PAGE_POWER_4KB) << PAGE_POWER_4KB) +#define PAGE_ADDR_2MB(x) (((x) >> PAGE_POWER_2MB) << PAGE_POWER_2MB) +#define PAGE_ADDR_4MB(x) (((x) >> PAGE_POWER_4MB) << PAGE_POWER_4MB) +#define PAGE_ADDR_1GB(x) (((x) >> PAGE_POWER_1GB) << PAGE_POWER_1GB) +#define PAGE_SIZE 4096 +#define PAGE_SIZE_4KB 4096 +#define PAGE_SIZE_2MB (4096 * 512) +#define PAGE_SIZE_4MB (4096 * 1024) +#define PAGE_SIZE_1GB 0x40000000 -#define PT32_PAGE_ADDR(x) (((uint_t)x) & 0xfffff000) -#define PT32_PAGE_OFFSET(x) (((uint_t)x) & 0xfff) -#define PT32_PAGE_POWER 12 +/* *** */ -#define PD32_4MB_PAGE_ADDR(x) (((uint_t)x) & 0xffc00000) -#define PD32_4MB_PAGE_OFFSET(x) (((uint_t)x) & 0x003fffff) -#define PAGE_SIZE_4MB (4096 * 1024) -/* The following should be phased out */ -#define PAGE_OFFSET(x) ((((uint_t)x) & 0xfff)) -#define PAGE_ALIGNED_ADDR(x) (((uint_t) (x)) >> 12) -#define PAGE_ADDR(x) (PAGE_ALIGNED_ADDR(x) << 12) -#define PAGE_POWER 12 -#define PAGE_SIZE 4096 -/* ** */ +#define CR3_TO_PDE32_PA(cr3) ((addr_t)(((uint_t)cr3) & 0xfffff000)) +#define CR3_TO_PDPE32PAE_PA(cr3) ((addr_t)(((uint_t)cr3) & 0xffffffe0)) +#define CR3_TO_PML4E64_PA(cr3) ((addr_t)(((ullong_t)cr3) & 0x000ffffffffff000LL)) -#define CR3_TO_PDE32(cr3) (V3_VAddr((void *)(((ulong_t)cr3) & 0xfffff000))) -#define CR3_TO_PDPTRE(cr3) (V3_VAddr((void *)(((ulong_t)cr3) & 0xffffffe0))) -#define CR3_TO_PML4E64(cr3) (V3_VAddr((void *)(((ullong_t)cr3) & 0x000ffffffffff000LL))) +#define CR3_TO_PDE32_VA(cr3) ((pde32_t *)V3_VAddr((void *)(addr_t)(((uint_t)cr3) & 0xfffff000))) +#define CR3_TO_PDPE32PAE_VA(cr3) ((pdpe32pae_t *)V3_VAddr((void *)(addr_t)(((uint_t)cr3) & 0xffffffe0))) +#define CR3_TO_PML4E64_VA(cr3) ((pml4e64_t *)V3_VAddr((void *)(addr_t)(((ullong_t)cr3) & 0x000ffffffffff000LL))) @@ -167,10 +224,30 @@ the host state in the vmcs before entering the guest. +/* We'll use the general form for now.... + typedef enum {PDE32_ENTRY_NOT_PRESENT, PDE32_ENTRY_PTE32, PDE32_ENTRY_LARGE_PAGE} pde32_entry_type_t; + typedef enum {PTE32_ENTRY_NOT_PRESENT, PTE32_ENTRY_PAGE} pte32_entry_type_t; + + typedef enum {PDPE32PAE_ENTRY_NOT_PRESENT, PDPE32PAE_ENTRY_PAGE} pdpe32pae_entry_type_t; + typedef enum {PDE32PAE_ENTRY_NOT_PRESENT, PDE32PAE_ENTRY_PTE32, PDE32PAE_ENTRY_LARGE_PAGE} pde32pae_entry_type_t; + typedef enum {PTE32PAE_ENTRY_NOT_PRESENT, PTE32PAE_ENTRY_PAGE} pte32pae_entry_type_t; + + typedef enum {PML4E64_ENTRY_NOT_PRESENT, PML4E64_ENTRY_PAGE} pml4e64_entry_type_t; + typedef enum {PDPE64_ENTRY_NOT_PRESENT, PDPE64_ENTRY_PTE32, PDPE64_ENTRY_LARGE_PAGE} pdpe64_entry_type_t; + typedef enum {PDE64_ENTRY_NOT_PRESENT, PDE64_ENTRY_PTE32, PDE64_ENTRY_LARGE_PAGE} pde64_entry_type_t; + typedef enum {PTE64_ENTRY_NOT_PRESENT, PTE64_ENTRY_PAGE} pte64_entry_type_t; +*/ + + +typedef enum {PT_ENTRY_NOT_PRESENT, PT_ENTRY_LARGE_PAGE, PT_ENTRY_PAGE} pt_entry_type_t; +typedef enum {PT_ACCESS_OK, PT_ACCESS_NOT_PRESENT, PT_ACCESS_WRITE_ERROR, PT_ACCESS_USER_ERROR} pt_access_status_t; -/* PDE 32 bit PAGE STRUCTURES */ -typedef enum {PDE32_ENTRY_NOT_PRESENT, PDE32_ENTRY_PTE32, PDE32_ENTRY_LARGE_PAGE} pde32_entry_type_t; -typedef enum {PT_ACCESS_OK, PT_ENTRY_NOT_PRESENT, PT_WRITE_ERROR, PT_USER_ERROR} pt_access_status_t; + +typedef struct gen_pt { + uint_t present : 1; + uint_t writable : 1; + uint_t user_page : 1; +} __attribute__((packed)) gen_pt_t; typedef struct pde32 { uint_t present : 1; @@ -194,7 +271,7 @@ typedef struct pde32_4MB { uint_t cache_disable : 1; uint_t accessed : 1; uint_t dirty : 1; - uint_t one : 1; + uint_t large_page : 1; uint_t global_page : 1; uint_t vmm_info : 3; uint_t pat : 1; @@ -249,7 +326,7 @@ typedef struct pde32pae { uint_t rsvd : 28; } __attribute__((packed)) pde32pae_t; -typedef struct pde32pae_4MB { +typedef struct pde32pae_2MB { uint_t present : 1; uint_t writable : 1; uint_t user_page : 1; @@ -261,11 +338,11 @@ typedef struct pde32pae_4MB { uint_t global_page : 1; uint_t vmm_info : 3; uint_t pat : 1; - uint_t rsvd : 9; - uint_t page_base_addr : 14; + uint_t rsvd : 8; + uint_t page_base_addr : 15; uint_t rsvd2 : 28; -} __attribute__((packed)) pde32pae_4MB_t; +} __attribute__((packed)) pde32pae_2MB_t; typedef struct pte32pae { uint_t present : 1; @@ -309,12 +386,12 @@ typedef struct pml4e64 { typedef struct pdpe64 { uint_t present : 1; uint_t writable : 1; - uint_t user_page : 1; + uint_t user_page : 1; uint_t write_through : 1; uint_t cache_disable : 1; uint_t accessed : 1; - uint_t reserved : 1; - uint_t large_page : 1; + uint_t avail : 1; + uint_t large_page : 1; uint_t zero : 1; uint_t vmm_info : 3; ullong_t pd_base_addr : 40; @@ -323,6 +400,25 @@ typedef struct pdpe64 { } __attribute__((packed)) pdpe64_t; +// We Don't support this +typedef struct pdpe64_1GB { + uint_t present : 1; + uint_t writable : 1; + uint_t user_page : 1; + uint_t write_through : 1; + uint_t cache_disable : 1; + uint_t accessed : 1; + uint_t dirty : 1; + uint_t large_page : 1; + uint_t global_page : 1; + uint_t vmm_info : 3; + uint_t pat : 1; + uint_t rsvd : 17; + ullong_t page_base_addr : 22; + uint_t available : 11; + uint_t no_execute : 1; +} __attribute__((packed)) pdpe64_1GB_t; + typedef struct pde64 { @@ -332,15 +428,34 @@ typedef struct pde64 { uint_t write_through : 1; uint_t cache_disable : 1; uint_t accessed : 1; - uint_t reserved : 1; - uint_t large_page : 1; - uint_t reserved2 : 1; + uint_t avail : 1; + uint_t large_page : 1; + uint_t global_page : 1; uint_t vmm_info : 3; ullong_t pt_base_addr : 40; uint_t available : 11; uint_t no_execute : 1; } __attribute__((packed)) pde64_t; +typedef struct pde64_2MB { + uint_t present : 1; + uint_t writable : 1; + uint_t user_page : 1; + uint_t write_through : 1; + uint_t cache_disable : 1; + uint_t accessed : 1; + uint_t dirty : 1; + uint_t large_page : 1; + uint_t global_page : 1; + uint_t vmm_info : 3; + uint_t pat : 1; + uint_t rsvd : 8; + ullong_t page_base_addr : 31; + uint_t available : 11; + uint_t no_execute : 1; +} __attribute__((packed)) pde64_2MB_t; + + typedef struct pte64 { uint_t present : 1; uint_t writable : 1; @@ -371,38 +486,128 @@ typedef struct pf_error_code { -void delete_page_tables_pde32(pde32_t * pde); - - -pde32_entry_type_t pde32_lookup(pde32_t * pd, addr_t addr, addr_t * entry); -int pte32_lookup(pte32_t * pte, addr_t addr, addr_t * entry); - -// This assumes that the page table resides in the host address space -// IE. IT DOES NO VM ADDR TRANSLATION -int pt32_lookup(pde32_t * pd, addr_t vaddr, addr_t * paddr); - - - -pt_access_status_t can_access_pde32(pde32_t * pde, addr_t addr, pf_error_t access_type); -pt_access_status_t can_access_pte32(pte32_t * pte, addr_t addr, pf_error_t access_type); +struct guest_info; +int v3_translate_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr); +int v3_translate_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr); +int v3_translate_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr); + +int v3_translate_host_pt_32(v3_reg_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); +int v3_translate_host_pt_64(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr); + + +int v3_find_host_pt_32_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr); +int v3_find_host_pt_32pae_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr); +int v3_find_host_pt_64_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr); +int v3_find_guest_pt_32_page(struct guest_info * info, v3_reg_t guest_cr3, + page_type_t type, addr_t vaddr, + addr_t * page_addr); +int v3_find_guest_pt_32pae_page(struct guest_info * info, v3_reg_t guest_cr3, + page_type_t type, addr_t vaddr, + addr_t * page_addr); +int v3_find_guest_pt_64_page(struct guest_info * info, v3_reg_t guest_cr3, + page_type_t type, addr_t vaddr, + addr_t * page_addr); + +pt_access_status_t inline v3_can_access_pde32(pde32_t * pde, addr_t addr, pf_error_t access_type); +pt_access_status_t inline v3_can_access_pte32(pte32_t * pte, addr_t addr, pf_error_t access_type); + +pt_access_status_t inline v3_can_access_pdpe32pae(pdpe32pae_t * pdpe, addr_t addr, pf_error_t access_type); +pt_access_status_t inline v3_can_access_pde32pae(pde32pae_t * pde, addr_t addr, pf_error_t access_type); +pt_access_status_t inline v3_can_access_pte32pae(pte32pae_t * pte, addr_t addr, pf_error_t access_type); + +pt_access_status_t inline v3_can_access_pml4e64(pml4e64_t * pmle, addr_t addr, pf_error_t access_type); +pt_access_status_t inline v3_can_access_pdpe64(pdpe64_t * pdpe, addr_t addr, pf_error_t access_type); +pt_access_status_t inline v3_can_access_pde64(pde64_t * pde, addr_t addr, pf_error_t access_type); +pt_access_status_t inline v3_can_access_pte64(pte64_t * pte, addr_t addr, pf_error_t access_type); + + +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); +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); +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); +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); +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); +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); + + + + +int v3_drill_host_pt_32(v3_reg_t host_cr3, addr_t vaddr, + int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data), + void * private_data); +int v3_drill_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr, + int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data), + void * private_data); +int v3_drill_host_pt_64(v3_reg_t host_cr3, addr_t vaddr, + int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data), + void * private_data); + +int v3_drill_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, + int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data), + void * private_data); +int v3_drill_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, + int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data), + void * private_data); +int v3_drill_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, + int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data), + void * private_data); + + + +int v3_walk_host_pt_32(v3_reg_t host_cr3, + void (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data), + void * private_data); + +int v3_walk_host_pt_32pae(v3_reg_t host_cr3, + void (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data), + void * private_data); + +int v3_walk_host_pt_64(v3_reg_t host_cr3, + void (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data), + void * private_data); + +int v3_walk_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, + void (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data), + void * private_data); + +int v3_walk_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, + void (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data), + void * private_data); + +int v3_walk_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, + void (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data), + void * private_data); + +pde32_t * create_passthrough_pts_32(struct guest_info * guest_info); +pdpe32pae_t * create_passthrough_pts_32PAE(struct guest_info * guest_info); +pml4e64_t * create_passthrough_pts_64(struct guest_info * info); -struct guest_info; +void delete_page_tables_32(pde32_t * pde); +void delete_page_tables_32PAE(pdpe32pae_t * pdpe); +void delete_page_tables_64(pml4e64_t * pml4); -pde32_t * create_passthrough_pts_32(struct guest_info * guest_info); -pdpe32pae_t * create_passthrough_pts_PAE32(struct guest_info * guest_info); -pml4e64_t * create_passthrough_pts_64(struct guest_info * info); +const uchar_t * v3_page_type_to_str(page_type_t type); +//#include void PrintDebugPageTables(pde32_t * pde); +void PrintPageTree(v3_vm_cpu_mode_t cpu_mode, addr_t virtual_addr, addr_t cr3); +void PrintPageTree_64(addr_t virtual_addr, pml4e64_t * pml); void PrintPT32(addr_t starting_address, pte32_t * pte);