2 * This file is part of the Palacios Virtual Machine Monitor developed
3 * by the V3VEE Project with funding from the United States National
4 * Science Foundation and the Department of Energy.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
10 * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
11 * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
12 * All rights reserved.
14 * Author: Jack Lange <jarusl@cs.northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
20 #ifndef __VMM_SHADOW_PAGING_H__
21 #define __VMM_SHADOW_PAGING_H__
26 #include <palacios/vmm_util.h>
27 #include <palacios/vmm_paging.h>
28 #include <palacios/vmm_hashtable.h>
29 #include <palacios/vmm_list.h>
30 #include <palacios/vmm_msr.h>
31 #include <palacios/vmm_lock.h>
32 #include <palacios/vmm_config.h>
37 struct v3_shdw_pg_impl {
39 int (*init)(struct v3_vm_info * vm, v3_cfg_tree_t * cfg);
40 int (*deinit)(struct v3_vm_info * vm);
41 int (*local_init)(struct guest_info * core);
42 int (*local_deinit)(struct guest_info * core);
43 int (*handle_pagefault)(struct guest_info * core, addr_t fault_addr, pf_error_t error_code);
44 int (*handle_invlpg)(struct guest_info * core, addr_t vaddr);
45 int (*activate_shdw_pt)(struct guest_info * core);
46 int (*invalidate_shdw_pt)(struct guest_info * core);
50 struct v3_shdw_impl_state {
52 struct v3_shdw_pg_impl * current_impl;
55 v3_rw_lock_t event_callback_lock;
56 struct list_head event_callback_list;
60 struct v3_shdw_pg_state {
62 // virtualized control registers
68 void * local_impl_data;
70 #ifdef V3_CONFIG_SHADOW_PAGING_TELEMETRY
78 struct v3_shdw_pg_event {
79 enum {SHADOW_PAGEFAULT,SHADOW_INVLPG,SHADOW_INVALIDATE,SHADOW_ACTIVATE} event_type;
80 enum {SHADOW_PREIMPL, SHADOW_POSTIMPL} event_order;
81 addr_t gva; // for pf and invlpg
82 pf_error_t error_code; // for pf
87 int v3_init_shdw_impl(struct v3_vm_info * vm);
88 int v3_deinit_shdw_impl(struct v3_vm_info * vm);
90 int v3_init_shdw_pg_state(struct guest_info * core);
91 int v3_deinit_shdw_pg_state(struct guest_info * core);
94 /* Handler implementations */
95 int v3_handle_shadow_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code);
96 int v3_handle_shadow_invlpg(struct guest_info * info);
99 int v3_activate_shadow_pt(struct guest_info * info);
100 int v3_invalidate_shadow_pts(struct guest_info * info);
103 /* Utility functions for shadow paging implementations */
104 int v3_inject_guest_pf(struct guest_info * info, addr_t fault_addr, pf_error_t error_code);
105 int v3_is_guest_pf(pt_access_status_t guest_access, pt_access_status_t shadow_access);
108 int v3_register_shadow_paging_event_callback(struct v3_vm_info *vm,
109 int (*callback)(struct guest_info *core,
110 struct v3_shdw_pg_event *event,
114 int v3_unregister_shadow_paging_event_callback(struct v3_vm_info *vm,
115 int (*callback)(struct guest_info *core,
116 struct v3_shdw_pg_event *event,
123 int V3_init_shdw_paging();
124 int V3_deinit_shdw_paging();
126 #define register_shdw_pg_impl(impl) \
127 static struct v3_shdw_pg_impl * _v3_shdw_pg_impl \
128 __attribute__((used)) \
129 __attribute__((unused, __section__ ("_v3_shdw_pg_impls"), \
130 aligned(sizeof(addr_t)))) \
136 #endif // ! __V3VEE__