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>
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 struct list_head event_callback_list;
59 struct v3_shdw_pg_state {
61 // virtualized control registers
67 void * local_impl_data;
69 #ifdef V3_CONFIG_SHADOW_PAGING_TELEMETRY
77 struct v3_shdw_pg_event {
78 enum {SHADOW_PAGEFAULT,SHADOW_INVLPG,SHADOW_INVALIDATE,SHADOW_ACTIVATE} event_type;
79 enum {SHADOW_PREIMPL, SHADOW_POSTIMPL} event_order;
80 addr_t gva; // for pf and invlpg
81 pf_error_t error_code; // for pf
86 int v3_init_shdw_impl(struct v3_vm_info * vm);
87 int v3_deinit_shdw_impl(struct v3_vm_info * vm);
89 int v3_init_shdw_pg_state(struct guest_info * core);
90 int v3_deinit_shdw_pg_state(struct guest_info * core);
93 /* Handler implementations */
94 int v3_handle_shadow_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code);
95 int v3_handle_shadow_invlpg(struct guest_info * info);
98 int v3_activate_shadow_pt(struct guest_info * info);
99 int v3_invalidate_shadow_pts(struct guest_info * info);
102 /* Utility functions for shadow paging implementations */
103 int v3_inject_guest_pf(struct guest_info * info, addr_t fault_addr, pf_error_t error_code);
104 int v3_is_guest_pf(pt_access_status_t guest_access, pt_access_status_t shadow_access);
107 int v3_register_shadow_paging_event_callback(struct v3_vm_info *vm,
108 int (*callback)(struct guest_info *core,
109 struct v3_shdw_pg_event *event,
113 int v3_unregister_shadow_paging_event_callback(struct v3_vm_info *vm,
114 int (*callback)(struct guest_info *core,
115 struct v3_shdw_pg_event *event,
122 int V3_init_shdw_paging();
123 int V3_deinit_shdw_paging();
125 #define register_shdw_pg_impl(impl) \
126 static struct v3_shdw_pg_impl * _v3_shdw_pg_impl \
127 __attribute__((used)) \
128 __attribute__((unused, __section__ ("_v3_shdw_pg_impls"), \
129 aligned(sizeof(addr_t)))) \
135 #endif // ! __V3VEE__