xen-vtx-unstable

annotate xen/include/asm-x86/vmx.h @ 3290:b9ab4345fd1b

bitkeeper revision 1.1159.1.483 (41c0c417XYObowWqbfqU0cdLx30C9w)

Initial Intel VMX changes to support unmodified Linux guests on Intel's VT p
latform.
author iap10@labyrinth.cl.cam.ac.uk
date Wed Dec 15 23:09:11 2004 +0000 (2004-12-15)
parents
children 0a4b76b6b5a0
rev   line source
iap10@3290 1 /*
iap10@3290 2 * vmx.h: VMX Architecture related definitions
iap10@3290 3 * Copyright (c) 2004, Intel Corporation.
iap10@3290 4 *
iap10@3290 5 * This program is free software; you can redistribute it and/or modify it
iap10@3290 6 * under the terms and conditions of the GNU General Public License,
iap10@3290 7 * version 2, as published by the Free Software Foundation.
iap10@3290 8 *
iap10@3290 9 * This program is distributed in the hope it will be useful, but WITHOUT
iap10@3290 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
iap10@3290 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
iap10@3290 12 * more details.
iap10@3290 13 *
iap10@3290 14 * You should have received a copy of the GNU General Public License along with
iap10@3290 15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
iap10@3290 16 * Place - Suite 330, Boston, MA 02111-1307 USA.
iap10@3290 17 *
iap10@3290 18 */
iap10@3290 19 #ifndef __ASM_X86_VMX_H__
iap10@3290 20 #define __ASM_X86_VMX_H__
iap10@3290 21
iap10@3290 22 #include <xen/sched.h>
iap10@3290 23 #include <asm/types.h>
iap10@3290 24 #include <asm/regs.h>
iap10@3290 25 #include <asm/processor.h>
iap10@3290 26 #include <asm/vmx_vmcs.h>
iap10@3290 27
iap10@3290 28 extern void vmx_asm_vmexit_handler(struct xen_regs);
iap10@3290 29 extern void vmx_asm_do_resume(void);
iap10@3290 30 extern void vmx_asm_do_launch(void);
iap10@3290 31 extern void vmx_intr_assist(struct exec_domain *d);
iap10@3290 32
iap10@3290 33 extern void arch_vmx_do_launch(struct exec_domain *);
iap10@3290 34 extern void arch_vmx_do_resume(struct exec_domain *);
iap10@3290 35
iap10@3290 36 extern int vmcs_size;
iap10@3290 37 extern unsigned int cpu_rev;
iap10@3290 38
iap10@3290 39 /*
iap10@3290 40 * Need fill bits for SENTER
iap10@3290 41 */
iap10@3290 42
iap10@3290 43 #define MONITOR_PIN_BASED_EXEC_CONTROLS 0x0000001f
iap10@3290 44 #define MONITOR_CPU_BASED_EXEC_CONTROLS 0x0581e7f2
iap10@3290 45 #define MONITOR_VM_EXIT_CONTROLS 0x0003edff
iap10@3290 46 #define MONITOR_VM_ENTRY_CONTROLS 0x000011ff
iap10@3290 47
iap10@3290 48 /*
iap10@3290 49 * Exit Reasons
iap10@3290 50 */
iap10@3290 51 #define VMX_EXIT_REASONS_FAILED_VMENTRY 0x80000000
iap10@3290 52
iap10@3290 53 #define EXIT_REASON_EXCEPTION_NMI 0
iap10@3290 54 #define EXIT_REASON_EXTERNAL_INTERRUPT 1
iap10@3290 55
iap10@3290 56 #define EXIT_REASON_PENDING_INTERRUPT 7
iap10@3290 57
iap10@3290 58 #define EXIT_REASON_TASK_SWITCH 9
iap10@3290 59 #define EXIT_REASON_CPUID 10
iap10@3290 60 #define EXIT_REASON_HLT 12
iap10@3290 61 #define EXIT_REASON_INVLPG 14
iap10@3290 62 #define EXIT_REASON_RDPMC 15
iap10@3290 63 #define EXIT_REASON_RDTSC 16
iap10@3290 64 #define EXIT_REASON_VMCALL 18
iap10@3290 65
iap10@3290 66 #define EXIT_REASON_CR_ACCESS 28
iap10@3290 67 #define EXIT_REASON_DR_ACCESS 29
iap10@3290 68 #define EXIT_REASON_IO_INSTRUCTION 30
iap10@3290 69 #define EXIT_REASON_MSR_READ 31
iap10@3290 70 #define EXIT_REASON_MSR_WRITE 32
iap10@3290 71 #define EXIT_REASON_MWAIT_INSTRUCTION 36
iap10@3290 72
iap10@3290 73 /*
iap10@3290 74 * Interruption-information format
iap10@3290 75 */
iap10@3290 76 #define INTR_INFO_VECTOR_MASK 0xff /* 7:0 */
iap10@3290 77 #define INTR_INFO_INTR_TYPE_MASK 0x700 /* 10:8 */
iap10@3290 78 #define INTR_INFO_DELIEVER_CODE_MASK 0x800 /* 11 */
iap10@3290 79 #define INTR_INFO_VALID_MASK 0x80000000 /* 31 */
iap10@3290 80
iap10@3290 81 #define INTR_TYPE_EXT_INTR (0 << 8) /* external interrupt */
iap10@3290 82 #define INTR_TYPE_EXCEPTION (3 << 8) /* processor exception */
iap10@3290 83
iap10@3290 84 /*
iap10@3290 85 * Exit Qualifications for MOV for Control Register Access
iap10@3290 86 */
iap10@3290 87 #define CONTROL_REG_ACCESS_NUM 0x7 /* 2:0, number of control register */
iap10@3290 88 #define CONTROL_REG_ACCESS_TYPE 0x30 /* 5:4, access type */
iap10@3290 89 #define TYPE_MOV_TO_CR (0 << 4)
iap10@3290 90 #define TYPE_MOV_FROM_CR (1 << 4)
iap10@3290 91 #define TYPE_CLTS (2 << 4)
iap10@3290 92 #define CONTROL_REG_ACCESS_REG 0x700 /* 10:8, general purpose register */
iap10@3290 93 #define REG_EAX (0 << 8)
iap10@3290 94 #define REG_ECX (1 << 8)
iap10@3290 95 #define REG_EDX (2 << 8)
iap10@3290 96 #define REG_EBX (3 << 8)
iap10@3290 97 #define REG_ESP (4 << 8)
iap10@3290 98 #define REG_EBP (5 << 8)
iap10@3290 99 #define REG_ESI (6 << 8)
iap10@3290 100 #define REG_EDI (7 << 8)
iap10@3290 101
iap10@3290 102 /*
iap10@3290 103 * Exit Qualifications for MOV for Debug Register Access
iap10@3290 104 */
iap10@3290 105 #define DEBUG_REG_ACCESS_NUM 0x7 /* 2:0, number of debug register */
iap10@3290 106 #define DEBUG_REG_ACCESS_TYPE 0x10 /* 4, direction of access */
iap10@3290 107 #define TYPE_MOV_TO_DR (0 << 4)
iap10@3290 108 #define TYPE_MOV_FROM_DR (1 << 4)
iap10@3290 109 #define DEBUG_REG_ACCESS_REG 0x700 /* 11:8, general purpose register */
iap10@3290 110
iap10@3290 111 #define EXCEPTION_BITMAP_DE (1 << 0) /* Divide Error */
iap10@3290 112 #define EXCEPTION_BITMAP_DB (1 << 1) /* Debug */
iap10@3290 113 #define EXCEPTION_BITMAP_NMI (1 << 2) /* NMI */
iap10@3290 114 #define EXCEPTION_BITMAP_BP (1 << 3) /* Breakpoint */
iap10@3290 115 #define EXCEPTION_BITMAP_OF (1 << 4) /* Overflow */
iap10@3290 116 #define EXCEPTION_BITMAP_BR (1 << 5) /* BOUND Range Exceeded */
iap10@3290 117 #define EXCEPTION_BITMAP_UD (1 << 6) /* Invalid Opcode */
iap10@3290 118 #define EXCEPTION_BITMAP_NM (1 << 7) /* Device Not Available */
iap10@3290 119 #define EXCEPTION_BITMAP_DF (1 << 8) /* Double Fault */
iap10@3290 120 /* reserved */
iap10@3290 121 #define EXCEPTION_BITMAP_TS (1 << 10) /* Invalid TSS */
iap10@3290 122 #define EXCEPTION_BITMAP_NP (1 << 11) /* Segment Not Present */
iap10@3290 123 #define EXCEPTION_BITMAP_SS (1 << 12) /* Stack-Segment Fault */
iap10@3290 124 #define EXCEPTION_BITMAP_GP (1 << 13) /* General Protection */
iap10@3290 125 #define EXCEPTION_BITMAP_PG (1 << 14) /* Page Fault */
iap10@3290 126 #define EXCEPTION_BITMAP_MF (1 << 16) /* x87 FPU Floating-Point Error (Math Fault) */
iap10@3290 127 #define EXCEPTION_BITMAP_AC (1 << 17) /* Alignment Check */
iap10@3290 128 #define EXCEPTION_BITMAP_MC (1 << 18) /* Machine Check */
iap10@3290 129 #define EXCEPTION_BITMAP_XF (1 << 19) /* SIMD Floating-Point Exception */
iap10@3290 130
iap10@3290 131 #ifdef XEN_DEBUGGER
iap10@3290 132 #define MONITOR_DEFAULT_EXCEPTION_BITMAP \
iap10@3290 133 ( EXCEPTION_BITMAP_PG | \
iap10@3290 134 EXCEPTION_BITMAP_DB | \
iap10@3290 135 EXCEPTION_BITMAP_BP | \
iap10@3290 136 EXCEPTION_BITMAP_GP )
iap10@3290 137 #else
iap10@3290 138 #define MONITOR_DEFAULT_EXCEPTION_BITMAP \
iap10@3290 139 ( EXCEPTION_BITMAP_PG | \
iap10@3290 140 EXCEPTION_BITMAP_GP )
iap10@3290 141 #endif
iap10@3290 142
iap10@3290 143 #define VMCALL_OPCODE ".byte 0x0f,0x01,0xc1\n"
iap10@3290 144 #define VMCLEAR_OPCODE ".byte 0x66,0x0f,0xc7\n" /* reg/opcode: /6 */
iap10@3290 145 #define VMLAUNCH_OPCODE ".byte 0x0f,0x01,0xc2\n"
iap10@3290 146 #define VMPTRLD_OPCODE ".byte 0x0f,0xc7\n" /* reg/opcode: /6 */
iap10@3290 147 #define VMPTRST_OPCODE ".byte 0x0f,0xc7\n" /* reg/opcode: /7 */
iap10@3290 148 #define VMREAD_OPCODE ".byte 0x0f,0x78\n"
iap10@3290 149 #define VMRESUME_OPCODE ".byte 0x0f,0x01,0xc3\n"
iap10@3290 150 #define VMWRITE_OPCODE ".byte 0x0f,0x79\n"
iap10@3290 151 #define VMXOFF_OPCODE ".byte 0x0f,0x01,0xc4\n"
iap10@3290 152 #define VMXON_OPCODE ".byte 0xf3,0x0f,0xc7\n"
iap10@3290 153
iap10@3290 154 #define MODRM_EAX_06 ".byte 0x30\n" /* [EAX], with reg/opcode: /6 */
iap10@3290 155 #define MODRM_EAX_07 ".byte 0x38\n" /* [EAX], with reg/opcode: /7 */
iap10@3290 156 #define MODRM_EAX_ECX ".byte 0xc1\n" /* [EAX], [ECX] */
iap10@3290 157
iap10@3290 158 static inline int __vmptrld (u64 addr)
iap10@3290 159 {
iap10@3290 160 unsigned long eflags;
iap10@3290 161 __asm__ __volatile__ ( VMPTRLD_OPCODE
iap10@3290 162 MODRM_EAX_06
iap10@3290 163 :
iap10@3290 164 : "a" (&addr)
iap10@3290 165 : "memory");
iap10@3290 166
iap10@3290 167 __save_flags(eflags);
iap10@3290 168 if (eflags & X86_EFLAGS_ZF || eflags & X86_EFLAGS_CF)
iap10@3290 169 return -1;
iap10@3290 170 return 0;
iap10@3290 171 }
iap10@3290 172
iap10@3290 173 static inline void __vmptrst (u64 addr)
iap10@3290 174 {
iap10@3290 175 __asm__ __volatile__ ( VMPTRST_OPCODE
iap10@3290 176 MODRM_EAX_07
iap10@3290 177 :
iap10@3290 178 : "a" (&addr)
iap10@3290 179 : "memory");
iap10@3290 180 }
iap10@3290 181
iap10@3290 182 static inline int __vmpclear (u64 addr)
iap10@3290 183 {
iap10@3290 184 unsigned long eflags;
iap10@3290 185
iap10@3290 186 __asm__ __volatile__ ( VMCLEAR_OPCODE
iap10@3290 187 MODRM_EAX_06
iap10@3290 188 :
iap10@3290 189 : "a" (&addr)
iap10@3290 190 : "memory");
iap10@3290 191 __save_flags(eflags);
iap10@3290 192 if (eflags & X86_EFLAGS_ZF || eflags & X86_EFLAGS_CF)
iap10@3290 193 return -1;
iap10@3290 194 return 0;
iap10@3290 195 }
iap10@3290 196
iap10@3290 197 static inline int __vmread (unsigned int field, void *value)
iap10@3290 198 {
iap10@3290 199 unsigned long eflags;
iap10@3290 200 unsigned long ecx = 0;
iap10@3290 201
iap10@3290 202 __asm__ __volatile__ ( VMREAD_OPCODE
iap10@3290 203 MODRM_EAX_ECX
iap10@3290 204 : "=c" (ecx)
iap10@3290 205 : "a" (field)
iap10@3290 206 : "memory");
iap10@3290 207
iap10@3290 208 *((long *) value) = ecx;
iap10@3290 209
iap10@3290 210 __save_flags(eflags);
iap10@3290 211 if (eflags & X86_EFLAGS_ZF || eflags & X86_EFLAGS_CF)
iap10@3290 212 return -1;
iap10@3290 213 return 0;
iap10@3290 214 }
iap10@3290 215
iap10@3290 216 static inline int __vmwrite (unsigned int field, unsigned int value)
iap10@3290 217 {
iap10@3290 218 unsigned long eflags;
iap10@3290 219
iap10@3290 220 __asm__ __volatile__ ( VMWRITE_OPCODE
iap10@3290 221 MODRM_EAX_ECX
iap10@3290 222 :
iap10@3290 223 : "a" (field) , "c" (value)
iap10@3290 224 : "memory");
iap10@3290 225 __save_flags(eflags);
iap10@3290 226 if (eflags & X86_EFLAGS_ZF || eflags & X86_EFLAGS_CF)
iap10@3290 227 return -1;
iap10@3290 228 return 0;
iap10@3290 229 }
iap10@3290 230
iap10@3290 231 static inline void __vmxoff (void)
iap10@3290 232 {
iap10@3290 233 __asm__ __volatile__ ( VMXOFF_OPCODE
iap10@3290 234 ::: "memory");
iap10@3290 235 }
iap10@3290 236
iap10@3290 237 static inline int __vmxon (u64 addr)
iap10@3290 238 {
iap10@3290 239 unsigned long eflags;
iap10@3290 240
iap10@3290 241 __asm__ __volatile__ ( VMXON_OPCODE
iap10@3290 242 MODRM_EAX_06
iap10@3290 243 :
iap10@3290 244 : "a" (&addr)
iap10@3290 245 : "memory");
iap10@3290 246 __save_flags(eflags);
iap10@3290 247 if (eflags & X86_EFLAGS_ZF || eflags & X86_EFLAGS_CF)
iap10@3290 248 return -1;
iap10@3290 249 return 0;
iap10@3290 250 }
iap10@3290 251 #endif /* __ASM_X86_VMX_H__ */