palacios/include/geekos/vmm_shadow_paging.h

   1 #ifndef __VMM_SHADOW_PAGING_H
   2 #define __VMM_SHADOW_PAGING_H
   3
   4
   5 #include <geekos/vmm_paging.h>
   6
   7 #include <geekos/vmm_util.h>
   8
   9 typedef struct shadow_page_state {
  10
  11   // these two reflect the top-level page directory
  12   // of the guest page table
  13   paging_mode_t           guest_mode;
  14   reg_ex_t                guest_cr3;         // points to guest's current page table
  15
  16   // Should thi sbe here
  17   reg_ex_t                guest_cr0;
  18
  19   // these two reflect the top-level page directory
  20   // the shadow page table
  21   paging_mode_t           shadow_mode;
  22   reg_ex_t                shadow_cr3;
  23
  24
  25 } shadow_page_state_t;
  26
  27
  28
  29 int init_shadow_page_state(shadow_page_state_t * state);
  30
  31 // This function will cause the shadow page table to be deleted
  32 // and rewritten to reflect the guest page table and the shadow map
  33 int wholesale_update_shadow_page_state(shadow_page_state_t * state, shadow_map_t * mem_map);
  34
  35
  36
  37
  38 #endif