+/* Northwestern University */
+/* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
+
#ifndef __VMM_SHADOW_PAGING_H
#define __VMM_SHADOW_PAGING_H
+#ifdef __V3VEE__
#include <palacios/vmm_util.h>
-
-
-
#include <palacios/vmm_paging.h>
+#include <palacios/vmm_hashtable.h>
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
+ ullong_t guest_cr3; // points to guest's current page table
// Should this be here??
- reg_ex_t guest_cr0;
+ ullong_t guest_cr0;
// these two reflect the top-level page directory
- // the shadow page table
+ // of the shadow page table
paging_mode_t shadow_mode;
- reg_ex_t shadow_cr3;
+ ullong_t shadow_cr3;
+
+ // Hash table that ties a CR3 value to a hash table pointer for the PT entries
+ struct hashtable * cr3_cache;
+ // Hash table that contains a mapping of guest pte addresses to host pte addresses
+ struct hashtable * cached_ptes;
+ addr_t cached_cr3;
};
+struct guest_info;
-struct guest_info;
+int cache_page_tables32(struct guest_info * info, addr_t pde);
+
+int init_shadow_page_state(struct guest_info * info);
+
+addr_t create_new_shadow_pt32();
+int handle_shadow_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code);
+int handle_shadow_invlpg(struct guest_info * info);
-int init_shadow_page_state(struct shadow_page_state * 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(struct guest_info * guest_info);
+int v3_replace_shdw_page(struct guest_info * info, addr_t location, void * new_page, void* old_page);
+int v3_replace_shdw_page32(struct guest_info * info, addr_t location, pte32_t * new_page, pte32_t * old_page);
+#endif // ! __V3VEE__
#endif
