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>
28 #define EFER_MSR 0xc0000080
30 // KCH: for system-call interposition
31 #define STAR_MSR 0xc0000081
32 #define LSTAR_MSR 0xc0000082
33 #define CSTAR_MSR 0xc0000083
34 #define SF_MASK_MSR 0xc0000084
35 #define FS_BASE_MSR 0xc0000100
36 #define GS_BASE_MSR 0xc0000101
37 #define KERN_GS_BASE_MSR 0xc0000102
44 } __attribute__((packed));
62 } __attribute__((packed));
82 } __attribute__((packed));
87 } __attribute__((packed));
91 } __attribute__((packed));
99 uint_t pdt_base_addr : 20;
100 } __attribute__((packed));
107 uint_t pdpt_base_addr : 27;
108 } __attribute__((packed));
116 ullong_t pml4t_base_addr : 40;
118 } __attribute__((packed));
134 } __attribute__((packed));
150 } __attribute__((packed));
156 uint_t rsvd1 : 7; // RAZ
158 uint_t rsvd2 : 1; // MBZ
162 uint_t rsvd3 : 1; // MBZ
164 uint_t rsvd4 : 12; // MBZ
165 uint_t rsvd5 : 32; // MBZ
166 } __attribute__((packed));
170 uint_t cf : 1; // carry flag
171 uint_t rsvd1 : 1; // Must be 1
172 uint_t pf : 1; // parity flag
173 uint_t rsvd2 : 1; // Read as 0
174 uint_t af : 1; // Auxillary flag
175 uint_t rsvd3 : 1; // Read as 0
176 uint_t zf : 1; // zero flag
177 uint_t sf : 1; // sign flag
178 uint_t tf : 1; // trap flag
179 uint_t intr : 1; // interrupt flag
180 uint_t df : 1; // direction flag
181 uint_t of : 1; // overflow flag
182 uint_t iopl : 2; // IO privilege level
183 uint_t nt : 1; // nested task
184 uint_t rsvd4 : 1; // read as 0
185 uint_t rf : 1; // resume flag
186 uint_t vm : 1; // Virtual-8086 mode
187 uint_t ac : 1; // alignment check
188 uint_t vif : 1; // virtual interrupt flag
189 uint_t vip : 1; // virtual interrupt pending
190 uint_t id : 1; // ID flag
191 uint_t rsvd5 : 10; // Read as 0
192 uint_t rsvd6 : 32; // Read as 0
193 } __attribute__((packed));
201 static const uchar_t cr_access_byte = 0x0f;
203 // Second opcode byte
204 static const uchar_t lmsw_byte = 0x01;
205 static const uchar_t lmsw_reg_byte = 0x6;
206 static const uchar_t smsw_byte = 0x01;
207 static const uchar_t smsw_reg_byte = 0x4;
208 static const uchar_t clts_byte = 0x06;
209 static const uchar_t mov_to_cr_byte = 0x22;
210 static const uchar_t mov_from_cr_byte = 0x20;
214 int v3_handle_cr0_write(struct guest_info * info);
215 int v3_handle_cr0_read(struct guest_info * info);
217 int v3_handle_cr3_write(struct guest_info * info);
218 int v3_handle_cr3_read(struct guest_info * info);
220 int v3_handle_cr4_write(struct guest_info * info);
221 int v3_handle_cr4_read(struct guest_info * info);
224 int v3_handle_efer_write(struct guest_info * core, uint_t msr, struct v3_msr src, void * priv_data);
225 int v3_handle_efer_read(struct guest_info * core, uint_t msr, struct v3_msr * dst, void * priv_data);
227 int v3_handle_star_write(struct guest_info * core, uint_t msr, struct v3_msr src, void * priv_data);
228 int v3_handle_star_read(struct guest_info * core, uint_t msr, struct v3_msr * dst, void * priv_data);
229 int v3_handle_lstar_write(struct guest_info * core, uint_t msr, struct v3_msr src, void * priv_data);
230 int v3_handle_lstar_read(struct guest_info * core, uint_t msr, struct v3_msr * dst, void * priv_data);
231 int v3_handle_cstar_write(struct guest_info * core, uint_t msr, struct v3_msr src, void * priv_data);
232 int v3_handle_cstar_read(struct guest_info * core, uint_t msr, struct v3_msr * dst, void * priv_data);
234 int v3_handle_vm_cr_write(struct guest_info * core, uint_t msr, struct v3_msr src, void * priv_data);
235 int v3_handle_vm_cr_read(struct guest_info * core, uint_t msr, struct v3_msr * dst, void * priv_data);
238 #endif // ! __V3VEE__