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_CTRL_REGS_H
21 #define __VMM_CTRL_REGS_H
26 #include <palacios/vm_guest.h>
88 uint_t pdt_base_addr : 20;
96 uint_t pdpt_base_addr : 27;
105 ullong_t pml4t_base_addr : 40;
145 uint_t rsvd1 : 7; // RAZ
147 uint_t rsvd2 : 1; // MBZ
151 uint_t rsvd3 : 1; // MBZ
153 uint_t rsvd4 : 12; // MBZ
154 uint_t rsvd5 : 32; // MBZ
159 uint_t cf : 1; // carry flag
160 uint_t rsvd1 : 1; // Must be 1
161 uint_t pf : 1; // parity flag
162 uint_t rsvd2 : 1; // Read as 0
163 uint_t af : 1; // Auxillary flag
164 uint_t rsvd3 : 1; // Read as 0
165 uint_t zf : 1; // zero flag
166 uint_t sf : 1; // sign flag
167 uint_t tf : 1; // trap flag
168 uint_t intr : 1; // interrupt flag
169 uint_t df : 1; // direction flag
170 uint_t of : 1; // overflow flag
171 uint_t iopl : 2; // IO privilege level
172 uint_t nt : 1; // nested task
173 uint_t rsvd4 : 1; // read as 0
174 uint_t rf : 1; // resume flag
175 uint_t vm : 1; // Virtual-8086 mode
176 uint_t ac : 1; // alignment check
177 uint_t vif : 1; // virtual interrupt flag
178 uint_t vip : 1; // virtual interrupt pending
179 uint_t id : 1; // ID flag
180 uint_t rsvd5 : 10; // Read as 0
181 uint_t rsvd6 : 32; // Read as 0
190 static const uchar_t cr_access_byte = 0x0f;
192 // Second opcode byte
193 static const uchar_t lmsw_byte = 0x01;
194 static const uchar_t lmsw_reg_byte = 0x6;
195 static const uchar_t smsw_byte = 0x01;
196 static const uchar_t smsw_reg_byte = 0x4;
197 static const uchar_t clts_byte = 0x06;
198 static const uchar_t mov_to_cr_byte = 0x22;
199 static const uchar_t mov_from_cr_byte = 0x20;
203 int v3_handle_cr0_write(struct guest_info * info);
204 int v3_handle_cr0_read(struct guest_info * info);
206 int v3_handle_cr3_write(struct guest_info * info);
207 int v3_handle_cr3_read(struct guest_info * info);
209 int v3_handle_cr4_write(struct guest_info * info);
210 int v3_handle_cr4_read(struct guest_info * info);
213 int v3_handle_efer_write(uint_t msr, struct v3_msr src, void * priv_data);
214 int v3_handle_efer_read(uint_t msr, struct v3_msr * dst, void * priv_data);
217 #endif // ! __V3VEE__