added new copyright and license

[palacios.git] / palacios / include / palacios / vmm_paging.h

diff --git a/palacios/include/palacios/vmm_paging.h b/palacios/include/palacios/vmm_paging.h
index 5cbdbd3..5351b36 100644 (file)
--- a/palacios/include/palacios/vmm_paging.h
+++ b/palacios/include/palacios/vmm_paging.h
@@ -1,12 +1,30 @@
-#ifndef __VMM_PAGING_H
-#define __VMM_PAGING_H
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
 
 
-#include <palacios/vmm_types.h>
+#ifndef __VMM_PAGING_H
+#define __VMM_PAGING_H
 
 
+#ifdef __V3VEE__
 
-#include <palacios/vmm_mem.h>
+#include <palacios/vmm_types.h>
 #include <palacios/vmm_util.h>
 
 /*
@@ -72,7 +90,7 @@ the host state in the vmcs before entering the guest.
 */
 
 
-#ifdef __V3VEE__
+
 
 #define MAX_PTE32_ENTRIES          1024
 #define MAX_PDE32_ENTRIES          1024
@@ -90,11 +108,15 @@ the host state in the vmcs before entering the guest.
 /* Gets the base address needed for a Page Table entry */
 #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 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))
@@ -106,14 +128,22 @@ the host state in the vmcs before entering the guest.
 
 
 
+
 #define CR3_TO_PDE32(cr3) (((ulong_t)cr3) & 0xfffff000)
 #define CR3_TO_PDPTRE(cr3) (((ulong_t)cr3) & 0xffffffe0)
 #define CR3_TO_PML4E64(cr3)  (((ullong_t)cr3) & 0x000ffffffffff000LL)
 
 
+
+
 /* 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_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)
+
+/* Page Table Flag Values */
+#define PT32_HOOK 0x1
+#define PT32_GUEST_PT 0x2
 
 
 #endif
@@ -148,9 +178,8 @@ typedef struct pde32_4MB {
   uint_t global_page     : 1;
   uint_t vmm_info        : 3;
   uint_t pat             : 1;
-  uint_t page_base_addr_lo: 8;
-  uint_t zero            : 1;
-  uint_t page_base_addr_hi: 10;
+  uint_t rsvd            : 9;
+  uint_t page_base_addr  : 10;
 
 } pde32_4MB_t;
 
@@ -263,14 +292,22 @@ typedef enum { PDE32 } paging_mode_t;
 void delete_page_tables_pde32(pde32_t * pde);
 
 
-pde32_entry_type_t pde32_lookup(pde32_t * pde, addr_t addr, addr_t * entry);
+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;
 
 pde32_t * create_passthrough_pde32_pts(struct guest_info * guest_info);