#include <geekos/ktypes.h>
-
+#include <geekos/vm_guest.h>
#include <geekos/vmm_mem.h>
#include <geekos/vmm_util.h>
-#define MAX_PAGE_TABLE_ENTRIES 1024
-#define MAX_PAGE_DIR_ENTRIES 1024
+#define MAX_PTE32_ENTRIES 1024
+#define MAX_PDE32_ENTRIES 1024
+
+#define MAX_PTE64_ENTRIES 512
+#define MAX_PDE64_ENTRIES 512
+#define MAX_PDPE64_ENTRIES 512
+#define MAX_PML4E64_ENTRIES 512
-#define MAX_PAGE_TABLE_ENTRIES_64 512
-#define MAX_PAGE_DIR_ENTRIES_64 512
-#define MAX_PAGE_DIR_PTR_ENTRIES_64 512
-#define MAX_PAGE_MAP_ENTRIES_64 512
+#define PDE32_INDEX(x) ((((uint_t)x) >> 22) & 0x3ff)
+#define PTE32_INDEX(x) ((((uint_t)x) >> 12) & 0x3ff)
-#define PAGE_DIRECTORY_INDEX(x) ((((uint_t)x) >> 22) & 0x3ff)
-#define PAGE_TABLE_INDEX(x) ((((uint_t)x) >> 12) & 0x3ff)
-#define PAGE_OFFSET(x) ((((uint_t)x) & 0xfff))
#define PAGE_ALIGNED_ADDR(x) (((uint_t) (x)) >> 12)
#ifndef PAGE_ADDR
#define PAGE_ADDR(x) (PAGE_ALIGNED_ADDR(x) << 12)
#endif
+#define PAGE_OFFSET(x) ((((uint_t)x) & 0xfff))
#define PAGE_POWER 12
-#define CR3_TO_PDE(cr3) (((ulong_t)cr3) & 0xfffff000)
+#define CR3_TO_PDE32(cr3) (((ulong_t)cr3) & 0xfffff000)
#define CR3_TO_PDPTRE(cr3) (((ulong_t)cr3) & 0xffffffe0)
-#define CR3_TO_PML4E(cr3) (((ullong_t)cr3) & 0x000ffffffffff000)
+#define CR3_TO_PML4E64(cr3) (((ullong_t)cr3) & 0x000ffffffffff000)
#define VM_WRITE 1
#define VM_USER 2
#define VM_EXEC 0
-typedef struct pde {
+/* PDE 32 bit PAGE STRUCTURES */
+typedef enum {NOT_PRESENT, PTE32, LARGE_PAGE} pde32_entry_type_t;
+
+typedef struct pde32 {
uint_t present : 1;
uint_t flags : 4;
uint_t accessed : 1;
uint_t global_page : 1;
uint_t vmm_info : 3;
uint_t pt_base_addr : 20;
-} vmm_pde_t;
+} pde32_t;
-typedef struct pte {
+typedef struct pte32 {
uint_t present : 1;
uint_t flags : 4;
uint_t accessed : 1;
uint_t global_page : 1;
uint_t vmm_info : 3;
uint_t page_base_addr : 20;
-} vmm_pte_t;
+} pte32_t;
+/* ***** */
+/* 32 bit PAE PAGE STRUCTURES */
+//
+// Fill in
+//
-typedef struct pte64 {
- uint_t present : 1;
- uint_t flags : 4;
- uint_t accessed : 1;
- uint_t dirty : 1;
- uint_t pte_attr : 1;
- uint_t global_page : 1;
- uint_t vmm_info : 3;
- uint_t page_base_addr_lo : 20;
- uint_t page_base_addr_hi : 20;
- uint_t available : 11;
- uint_t no_execute : 1;
-} pte64_t;
+/* ********** */
-typedef struct pde64 {
- uint_t present : 1;
- uint_t flags : 4;
- uint_t accessed : 1;
- uint_t reserved : 1;
- uint_t large_pages : 1;
- uint_t reserved2 : 1;
- uint_t vmm_info : 3;
- uint_t pt_base_addr_lo : 20;
- uint_t pt_base_addr_hi : 20;
- uint_t available : 11;
- uint_t no_execute : 1;
-} pde64_t;
-typedef struct pdpe64 {
+/* LONG MODE 64 bit PAGE STRUCTURES */
+typedef struct pml4e64 {
uint_t present : 1;
uint_t writable : 1;
uint_t user : 1;
uint_t pcd : 1;
uint_t accessed : 1;
uint_t reserved : 1;
- uint_t large_pages : 1;
- uint_t zero : 1;
+ uint_t zero : 2;
uint_t vmm_info : 3;
- uint_t pd_base_addr_lo : 20;
- uint_t pd_base_addr_hi : 20;
+ uint_t pdp_base_addr_lo : 20;
+ uint_t pdp_base_addr_hi : 20;
uint_t available : 11;
uint_t no_execute : 1;
-} pdpe64_t;
+} pml4e64_t;
-typedef struct pml4e {
+typedef struct pdpe64 {
uint_t present : 1;
uint_t writable : 1;
uint_t user : 1;
uint_t pcd : 1;
uint_t accessed : 1;
uint_t reserved : 1;
- uint_t zero : 2;
+ uint_t large_pages : 1;
+ uint_t zero : 1;
uint_t vmm_info : 3;
- uint_t pdp_base_addr_lo : 20;
- uint_t pdp_base_addr_hi : 20;
+ uint_t pd_base_addr_lo : 20;
+ uint_t pd_base_addr_hi : 20;
uint_t available : 11;
uint_t no_execute : 1;
-} pml4e64_t;
+} pdpe64_t;
+
+
+
+
+typedef struct pde64 {
+ uint_t present : 1;
+ uint_t flags : 4;
+ uint_t accessed : 1;
+ uint_t reserved : 1;
+ uint_t large_pages : 1;
+ uint_t reserved2 : 1;
+ uint_t vmm_info : 3;
+ uint_t pt_base_addr_lo : 20;
+ uint_t pt_base_addr_hi : 20;
+ uint_t available : 11;
+ uint_t no_execute : 1;
+} pde64_t;
+typedef struct pte64 {
+ uint_t present : 1;
+ uint_t flags : 4;
+ uint_t accessed : 1;
+ uint_t dirty : 1;
+ uint_t pte_attr : 1;
+ uint_t global_page : 1;
+ uint_t vmm_info : 3;
+ uint_t page_base_addr_lo : 20;
+ uint_t page_base_addr_hi : 20;
+ uint_t available : 11;
+ uint_t no_execute : 1;
+} pte64_t;
+
+/* *************** */
typedef enum { PDE32 } paging_mode_t;
-typedef struct shadow_page_state {
- // these two reflect the top-level page directory
- // of the guest page table
- paging_mode_t guest_mode;
- reg_ex_t guest_cr3; // points to guest's current page table
+pde32_t * create_passthrough_pde32_pts(guest_info_t * guest_info);
+
+
+void delete_page_tables_pde32(pde32_t * pde);
+
+
+pde32_entry_type_t pde32_lookup(pde32_t * pde, addr_t addr, addr_t * entry);
+int pte32_lookup(pte32_t * pte, addr_t addr, addr_t * entry);
- // Should thi sbe here
- reg_ex_t guest_cr0;
- // these two reflect the top-level page directory
- // the shadow page table
- paging_mode_t shadow_mode;
- reg_ex_t shadow_cr3;
-} shadow_page_state_t;
-int init_shadow_page_state(shadow_page_state_t * state);
-// This function will cause the shadow page table to be deleted
-// and rewritten to reflect the guest page table and the shadow map
-int wholesale_update_shadow_page_state(shadow_page_state_t * state, shadow_map_t * mem_map);
-vmm_pde_t * create_passthrough_pde32_pts(shadow_map_t * map);
+void PrintDebugPageTables(pde32_t * pde);
-//void free_guest_page_tables(vmm_pde_t * pde);
-void PrintDebugPageTables(vmm_pde_t * pde);
#endif
