+/* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
+/* (c) 2008, The V3VEE Project <http://www.v3vee.org> */
+
#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 {
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;
-int init_shadow_page_state(struct shadow_page_state * state);
+int cache_page_tables32(struct guest_info * info, addr_t pde);
-addr_t create_new_shadow_pt32(struct guest_info * info);
+int init_shadow_page_state(struct guest_info * info);
-addr_t setup_shadow_pt32(struct guest_info * info, addr_t virt_cr3);
-addr_t setup_shadow_pte32(struct guest_info * info, addr_t pt_host_addr);
+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_pagefault32(struct guest_info * info, addr_t fault_addr, pf_error_t error_code);
-
-int handle_shadow_pde32_fault(struct guest_info * info,
- addr_t fault_addr,
- pf_error_t error_code,
- pde32_t * shadow_pde,
- pde32_t * guest_pde);
+int handle_shadow_invlpg(struct guest_info * info);
-int handle_shadow_pte32_fault(struct guest_info* info,
- addr_t fault_addr,
- pf_error_t error_code,
- pte32_t * shadow_pte,
- pte32_t * guest_pte);
+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);
-int handle_shadow_invlpg(struct guest_info * info);
+#endif // ! __V3VEE__
#endif