arch/x86/include/asm/idtentry.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_IDTENTRY_H
   3 #define _ASM_X86_IDTENTRY_H
   4
   5 /* Interrupts/Exceptions */
   6 #include <asm/trapnr.h>
   7
   8 #ifndef __ASSEMBLY__
   9 #include <linux/entry-common.h>
  10 #include <linux/hardirq.h>
  11
  12 #include <asm/irq_stack.h>
  13
  14 /**
  15  * DECLARE_IDTENTRY - Declare functions for simple IDT entry points
  16  *                    No error code pushed by hardware
  17  * @vector:     Vector number (ignored for C)
  18  * @func:       Function name of the entry point
  19  *
  20  * Declares three functions:
  21  * - The ASM entry point: asm_##func
  22  * - The XEN PV trap entry point: xen_##func (maybe unused)
  23  * - The C handler called from the ASM entry point
  24  *
  25  * Note: This is the C variant of DECLARE_IDTENTRY(). As the name says it
  26  * declares the entry points for usage in C code. There is an ASM variant
  27  * as well which is used to emit the entry stubs in entry_32/64.S.
  28  */
  29 #define DECLARE_IDTENTRY(vector, func)                                  \
  30         asmlinkage void asm_##func(void);                               \
  31         asmlinkage void xen_asm_##func(void);                           \
  32         __visible void func(struct pt_regs *regs)
  33
  34 /**
  35  * DEFINE_IDTENTRY - Emit code for simple IDT entry points
  36  * @func:       Function name of the entry point
  37  *
  38  * @func is called from ASM entry code with interrupts disabled.
  39  *
  40  * The macro is written so it acts as function definition. Append the
  41  * body with a pair of curly brackets.
  42  *
  43  * irqentry_enter() contains common code which has to be invoked before
  44  * arbitrary code in the body. irqentry_exit() contains common code
  45  * which has to run before returning to the low level assembly code.
  46  */
  47 #define DEFINE_IDTENTRY(func)                                           \
  48 static __always_inline void __##func(struct pt_regs *regs);             \
  49                                                                         \
  50 __visible noinstr void func(struct pt_regs *regs)                       \
  51 {                                                                       \
  52         irqentry_state_t state = irqentry_enter(regs);                  \
  53                                                                         \
  54         instrumentation_begin();                                        \
  55         __##func (regs);                                                \
  56         instrumentation_end();                                          \
  57         irqentry_exit(regs, state);                                     \
  58 }                                                                       \
  59                                                                         \
  60 static __always_inline void __##func(struct pt_regs *regs)
  61
  62 /* Special case for 32bit IRET 'trap' */
  63 #define DECLARE_IDTENTRY_SW     DECLARE_IDTENTRY
  64 #define DEFINE_IDTENTRY_SW      DEFINE_IDTENTRY
  65
  66 /**
  67  * DECLARE_IDTENTRY_ERRORCODE - Declare functions for simple IDT entry points
  68  *                              Error code pushed by hardware
  69  * @vector:     Vector number (ignored for C)
  70  * @func:       Function name of the entry point
  71  *
  72  * Declares three functions:
  73  * - The ASM entry point: asm_##func
  74  * - The XEN PV trap entry point: xen_##func (maybe unused)
  75  * - The C handler called from the ASM entry point
  76  *
  77  * Same as DECLARE_IDTENTRY, but has an extra error_code argument for the
  78  * C-handler.
  79  */
  80 #define DECLARE_IDTENTRY_ERRORCODE(vector, func)                        \
  81         asmlinkage void asm_##func(void);                               \
  82         asmlinkage void xen_asm_##func(void);                           \
  83         __visible void func(struct pt_regs *regs, unsigned long error_code)
  84
  85 /**
  86  * DEFINE_IDTENTRY_ERRORCODE - Emit code for simple IDT entry points
  87  *                             Error code pushed by hardware
  88  * @func:       Function name of the entry point
  89  *
  90  * Same as DEFINE_IDTENTRY, but has an extra error_code argument
  91  */
  92 #define DEFINE_IDTENTRY_ERRORCODE(func)                                 \
  93 static __always_inline void __##func(struct pt_regs *regs,              \
  94                                      unsigned long error_code);         \
  95                                                                         \
  96 __visible noinstr void func(struct pt_regs *regs,                       \
  97                             unsigned long error_code)                   \
  98 {                                                                       \
  99         irqentry_state_t state = irqentry_enter(regs);                  \
 100                                                                         \
 101         instrumentation_begin();                                        \
 102         __##func (regs, error_code);                                    \
 103         instrumentation_end();                                          \
 104         irqentry_exit(regs, state);                                     \
 105 }                                                                       \
 106                                                                         \
 107 static __always_inline void __##func(struct pt_regs *regs,              \
 108                                      unsigned long error_code)
 109
 110 /**
 111  * DECLARE_IDTENTRY_RAW - Declare functions for raw IDT entry points
 112  *                    No error code pushed by hardware
 113  * @vector:     Vector number (ignored for C)
 114  * @func:       Function name of the entry point
 115  *
 116  * Maps to DECLARE_IDTENTRY().
 117  */
 118 #define DECLARE_IDTENTRY_RAW(vector, func)                              \
 119         DECLARE_IDTENTRY(vector, func)
 120
 121 /**
 122  * DEFINE_IDTENTRY_RAW - Emit code for raw IDT entry points
 123  * @func:       Function name of the entry point
 124  *
 125  * @func is called from ASM entry code with interrupts disabled.
 126  *
 127  * The macro is written so it acts as function definition. Append the
 128  * body with a pair of curly brackets.
 129  *
 130  * Contrary to DEFINE_IDTENTRY() this does not invoke the
 131  * idtentry_enter/exit() helpers before and after the body invocation. This
 132  * needs to be done in the body itself if applicable. Use if extra work
 133  * is required before the enter/exit() helpers are invoked.
 134  */
 135 #define DEFINE_IDTENTRY_RAW(func)                                       \
 136 __visible noinstr void func(struct pt_regs *regs)
 137
 138 /**
 139  * DECLARE_IDTENTRY_RAW_ERRORCODE - Declare functions for raw IDT entry points
 140  *                                  Error code pushed by hardware
 141  * @vector:     Vector number (ignored for C)
 142  * @func:       Function name of the entry point
 143  *
 144  * Maps to DECLARE_IDTENTRY_ERRORCODE()
 145  */
 146 #define DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func)                    \
 147         DECLARE_IDTENTRY_ERRORCODE(vector, func)
 148
 149 /**
 150  * DEFINE_IDTENTRY_RAW_ERRORCODE - Emit code for raw IDT entry points
 151  * @func:       Function name of the entry point
 152  *
 153  * @func is called from ASM entry code with interrupts disabled.
 154  *
 155  * The macro is written so it acts as function definition. Append the
 156  * body with a pair of curly brackets.
 157  *
 158  * Contrary to DEFINE_IDTENTRY_ERRORCODE() this does not invoke the
 159  * irqentry_enter/exit() helpers before and after the body invocation. This
 160  * needs to be done in the body itself if applicable. Use if extra work
 161  * is required before the enter/exit() helpers are invoked.
 162  */
 163 #define DEFINE_IDTENTRY_RAW_ERRORCODE(func)                             \
 164 __visible noinstr void func(struct pt_regs *regs, unsigned long error_code)
 165
 166 /**
 167  * DECLARE_IDTENTRY_IRQ - Declare functions for device interrupt IDT entry
 168  *                        points (common/spurious)
 169  * @vector:     Vector number (ignored for C)
 170  * @func:       Function name of the entry point
 171  *
 172  * Maps to DECLARE_IDTENTRY_ERRORCODE()
 173  */
 174 #define DECLARE_IDTENTRY_IRQ(vector, func)                              \
 175         DECLARE_IDTENTRY_ERRORCODE(vector, func)
 176
 177 /**
 178  * DEFINE_IDTENTRY_IRQ - Emit code for device interrupt IDT entry points
 179  * @func:       Function name of the entry point
 180  *
 181  * The vector number is pushed by the low level entry stub and handed
 182  * to the function as error_code argument which needs to be truncated
 183  * to an u8 because the push is sign extending.
 184  *
 185  * irq_enter/exit_rcu() are invoked before the function body and the
 186  * KVM L1D flush request is set. Stack switching to the interrupt stack
 187  * has to be done in the function body if necessary.
 188  */
 189 #define DEFINE_IDTENTRY_IRQ(func)                                       \
 190 static __always_inline void __##func(struct pt_regs *regs, u8 vector);  \
 191                                                                         \
 192 __visible noinstr void func(struct pt_regs *regs,                       \
 193                             unsigned long error_code)                   \
 194 {                                                                       \
 195         irqentry_state_t state = irqentry_enter(regs);                  \
 196                                                                         \
 197         instrumentation_begin();                                        \
 198         irq_enter_rcu();                                                \
 199         kvm_set_cpu_l1tf_flush_l1d();                                   \
 200         __##func (regs, (u8)error_code);                                \
 201         irq_exit_rcu();                                                 \
 202         instrumentation_end();                                          \
 203         irqentry_exit(regs, state);                                     \
 204 }                                                                       \
 205                                                                         \
 206 static __always_inline void __##func(struct pt_regs *regs, u8 vector)
 207
 208 /**
 209  * DECLARE_IDTENTRY_SYSVEC - Declare functions for system vector entry points
 210  * @vector:     Vector number (ignored for C)
 211  * @func:       Function name of the entry point
 212  *
 213  * Declares three functions:
 214  * - The ASM entry point: asm_##func
 215  * - The XEN PV trap entry point: xen_##func (maybe unused)
 216  * - The C handler called from the ASM entry point
 217  *
 218  * Maps to DECLARE_IDTENTRY().
 219  */
 220 #define DECLARE_IDTENTRY_SYSVEC(vector, func)                           \
 221         DECLARE_IDTENTRY(vector, func)
 222
 223 /**
 224  * DEFINE_IDTENTRY_SYSVEC - Emit code for system vector IDT entry points
 225  * @func:       Function name of the entry point
 226  *
 227  * irqentry_enter/exit() and irq_enter/exit_rcu() are invoked before the
 228  * function body. KVM L1D flush request is set.
 229  *
 230  * Runs the function on the interrupt stack if the entry hit kernel mode
 231  */
 232 #define DEFINE_IDTENTRY_SYSVEC(func)                                    \
 233 static void __##func(struct pt_regs *regs);                             \
 234                                                                         \
 235 __visible noinstr void func(struct pt_regs *regs)                       \
 236 {                                                                       \
 237         irqentry_state_t state = irqentry_enter(regs);                  \
 238                                                                         \
 239         instrumentation_begin();                                        \
 240         irq_enter_rcu();                                                \
 241         kvm_set_cpu_l1tf_flush_l1d();                                   \
 242         run_sysvec_on_irqstack_cond(__##func, regs);                    \
 243         irq_exit_rcu();                                                 \
 244         instrumentation_end();                                          \
 245         irqentry_exit(regs, state);                                     \
 246 }                                                                       \
 247                                                                         \
 248 static noinline void __##func(struct pt_regs *regs)
 249
 250 /**
 251  * DEFINE_IDTENTRY_SYSVEC_SIMPLE - Emit code for simple system vector IDT
 252  *                                 entry points
 253  * @func:       Function name of the entry point
 254  *
 255  * Runs the function on the interrupted stack. No switch to IRQ stack and
 256  * only the minimal __irq_enter/exit() handling.
 257  *
 258  * Only use for 'empty' vectors like reschedule IPI and KVM posted
 259  * interrupt vectors.
 260  */
 261 #define DEFINE_IDTENTRY_SYSVEC_SIMPLE(func)                             \
 262 static __always_inline void __##func(struct pt_regs *regs);             \
 263                                                                         \
 264 __visible noinstr void func(struct pt_regs *regs)                       \
 265 {                                                                       \
 266         irqentry_state_t state = irqentry_enter(regs);                  \
 267                                                                         \
 268         instrumentation_begin();                                        \
 269         __irq_enter_raw();                                              \
 270         kvm_set_cpu_l1tf_flush_l1d();                                   \
 271         __##func (regs);                                                \
 272         __irq_exit_raw();                                               \
 273         instrumentation_end();                                          \
 274         irqentry_exit(regs, state);                                     \
 275 }                                                                       \
 276                                                                         \
 277 static __always_inline void __##func(struct pt_regs *regs)
 278
 279 /**
 280  * DECLARE_IDTENTRY_XENCB - Declare functions for XEN HV callback entry point
 281  * @vector:     Vector number (ignored for C)
 282  * @func:       Function name of the entry point
 283  *
 284  * Declares three functions:
 285  * - The ASM entry point: asm_##func
 286  * - The XEN PV trap entry point: xen_##func (maybe unused)
 287  * - The C handler called from the ASM entry point
 288  *
 289  * Maps to DECLARE_IDTENTRY(). Distinct entry point to handle the 32/64-bit
 290  * difference
 291  */
 292 #define DECLARE_IDTENTRY_XENCB(vector, func)                            \
 293         DECLARE_IDTENTRY(vector, func)
 294
 295 #ifdef CONFIG_X86_64
 296 /**
 297  * DECLARE_IDTENTRY_IST - Declare functions for IST handling IDT entry points
 298  * @vector:     Vector number (ignored for C)
 299  * @func:       Function name of the entry point
 300  *
 301  * Maps to DECLARE_IDTENTRY_RAW, but declares also the NOIST C handler
 302  * which is called from the ASM entry point on user mode entry
 303  */
 304 #define DECLARE_IDTENTRY_IST(vector, func)                              \
 305         DECLARE_IDTENTRY_RAW(vector, func);                             \
 306         __visible void noist_##func(struct pt_regs *regs)
 307
 308 /**
 309  * DECLARE_IDTENTRY_VC - Declare functions for the VC entry point
 310  * @vector:     Vector number (ignored for C)
 311  * @func:       Function name of the entry point
 312  *
 313  * Maps to DECLARE_IDTENTRY_RAW_ERRORCODE, but declares also the
 314  * safe_stack C handler.
 315  */
 316 #define DECLARE_IDTENTRY_VC(vector, func)                               \
 317         DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func);                   \
 318         __visible noinstr void ist_##func(struct pt_regs *regs, unsigned long error_code);      \
 319         __visible noinstr void safe_stack_##func(struct pt_regs *regs, unsigned long error_code)
 320
 321 /**
 322  * DEFINE_IDTENTRY_IST - Emit code for IST entry points
 323  * @func:       Function name of the entry point
 324  *
 325  * Maps to DEFINE_IDTENTRY_RAW
 326  */
 327 #define DEFINE_IDTENTRY_IST(func)                                       \
 328         DEFINE_IDTENTRY_RAW(func)
 329
 330 /**
 331  * DEFINE_IDTENTRY_NOIST - Emit code for NOIST entry points which
 332  *                         belong to a IST entry point (MCE, DB)
 333  * @func:       Function name of the entry point. Must be the same as
 334  *              the function name of the corresponding IST variant
 335  *
 336  * Maps to DEFINE_IDTENTRY_RAW().
 337  */
 338 #define DEFINE_IDTENTRY_NOIST(func)                                     \
 339         DEFINE_IDTENTRY_RAW(noist_##func)
 340
 341 /**
 342  * DECLARE_IDTENTRY_DF - Declare functions for double fault
 343  * @vector:     Vector number (ignored for C)
 344  * @func:       Function name of the entry point
 345  *
 346  * Maps to DECLARE_IDTENTRY_RAW_ERRORCODE
 347  */
 348 #define DECLARE_IDTENTRY_DF(vector, func)                               \
 349         DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func)
 350
 351 /**
 352  * DEFINE_IDTENTRY_DF - Emit code for double fault
 353  * @func:       Function name of the entry point
 354  *
 355  * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
 356  */
 357 #define DEFINE_IDTENTRY_DF(func)                                        \
 358         DEFINE_IDTENTRY_RAW_ERRORCODE(func)
 359
 360 /**
 361  * DEFINE_IDTENTRY_VC_SAFE_STACK - Emit code for VMM communication handler
 362                                    which runs on a safe stack.
 363  * @func:       Function name of the entry point
 364  *
 365  * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
 366  */
 367 #define DEFINE_IDTENTRY_VC_SAFE_STACK(func)                             \
 368         DEFINE_IDTENTRY_RAW_ERRORCODE(safe_stack_##func)
 369
 370 /**
 371  * DEFINE_IDTENTRY_VC_IST - Emit code for VMM communication handler
 372                             which runs on the VC fall-back stack
 373  * @func:       Function name of the entry point
 374  *
 375  * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
 376  */
 377 #define DEFINE_IDTENTRY_VC_IST(func)                            \
 378         DEFINE_IDTENTRY_RAW_ERRORCODE(ist_##func)
 379
 380 /**
 381  * DEFINE_IDTENTRY_VC - Emit code for VMM communication handler
 382  * @func:       Function name of the entry point
 383  *
 384  * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
 385  */
 386 #define DEFINE_IDTENTRY_VC(func)                                        \
 387         DEFINE_IDTENTRY_RAW_ERRORCODE(func)
 388
 389 #else   /* CONFIG_X86_64 */
 390
 391 /**
 392  * DECLARE_IDTENTRY_DF - Declare functions for double fault 32bit variant
 393  * @vector:     Vector number (ignored for C)
 394  * @func:       Function name of the entry point
 395  *
 396  * Declares two functions:
 397  * - The ASM entry point: asm_##func
 398  * - The C handler called from the C shim
 399  */
 400 #define DECLARE_IDTENTRY_DF(vector, func)                               \
 401         asmlinkage void asm_##func(void);                               \
 402         __visible void func(struct pt_regs *regs,                       \
 403                             unsigned long error_code,                   \
 404                             unsigned long address)
 405
 406 /**
 407  * DEFINE_IDTENTRY_DF - Emit code for double fault on 32bit
 408  * @func:       Function name of the entry point
 409  *
 410  * This is called through the doublefault shim which already provides
 411  * cr2 in the address argument.
 412  */
 413 #define DEFINE_IDTENTRY_DF(func)                                        \
 414 __visible noinstr void func(struct pt_regs *regs,                       \
 415                             unsigned long error_code,                   \
 416                             unsigned long address)
 417
 418 #endif  /* !CONFIG_X86_64 */
 419
 420 /* C-Code mapping */
 421 #define DECLARE_IDTENTRY_NMI            DECLARE_IDTENTRY_RAW
 422 #define DEFINE_IDTENTRY_NMI             DEFINE_IDTENTRY_RAW
 423
 424 #ifdef CONFIG_X86_64
 425 #define DECLARE_IDTENTRY_MCE            DECLARE_IDTENTRY_IST
 426 #define DEFINE_IDTENTRY_MCE             DEFINE_IDTENTRY_IST
 427 #define DEFINE_IDTENTRY_MCE_USER        DEFINE_IDTENTRY_NOIST
 428
 429 #define DECLARE_IDTENTRY_DEBUG          DECLARE_IDTENTRY_IST
 430 #define DEFINE_IDTENTRY_DEBUG           DEFINE_IDTENTRY_IST
 431 #define DEFINE_IDTENTRY_DEBUG_USER      DEFINE_IDTENTRY_NOIST
 432 #endif
 433
 434 #else /* !__ASSEMBLY__ */
 435
 436 /*
 437  * The ASM variants for DECLARE_IDTENTRY*() which emit the ASM entry stubs.
 438  */
 439 #define DECLARE_IDTENTRY(vector, func)                                  \
 440         idtentry vector asm_##func func has_error_code=0
 441
 442 #define DECLARE_IDTENTRY_ERRORCODE(vector, func)                        \
 443         idtentry vector asm_##func func has_error_code=1
 444
 445 /* Special case for 32bit IRET 'trap'. Do not emit ASM code */
 446 #define DECLARE_IDTENTRY_SW(vector, func)
 447
 448 #define DECLARE_IDTENTRY_RAW(vector, func)                              \
 449         DECLARE_IDTENTRY(vector, func)
 450
 451 #define DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func)                    \
 452         DECLARE_IDTENTRY_ERRORCODE(vector, func)
 453
 454 /* Entries for common/spurious (device) interrupts */
 455 #define DECLARE_IDTENTRY_IRQ(vector, func)                              \
 456         idtentry_irq vector func
 457
 458 /* System vector entries */
 459 #define DECLARE_IDTENTRY_SYSVEC(vector, func)                           \
 460         idtentry_sysvec vector func
 461
 462 #ifdef CONFIG_X86_64
 463 # define DECLARE_IDTENTRY_MCE(vector, func)                             \
 464         idtentry_mce_db vector asm_##func func
 465
 466 # define DECLARE_IDTENTRY_DEBUG(vector, func)                           \
 467         idtentry_mce_db vector asm_##func func
 468
 469 # define DECLARE_IDTENTRY_DF(vector, func)                              \
 470         idtentry_df vector asm_##func func
 471
 472 # define DECLARE_IDTENTRY_XENCB(vector, func)                           \
 473         DECLARE_IDTENTRY(vector, func)
 474
 475 # define DECLARE_IDTENTRY_VC(vector, func)                              \
 476         idtentry_vc vector asm_##func func
 477
 478 #else
 479 # define DECLARE_IDTENTRY_MCE(vector, func)                             \
 480         DECLARE_IDTENTRY(vector, func)
 481
 482 /* No ASM emitted for DF as this goes through a C shim */
 483 # define DECLARE_IDTENTRY_DF(vector, func)
 484
 485 /* No ASM emitted for XEN hypervisor callback */
 486 # define DECLARE_IDTENTRY_XENCB(vector, func)
 487
 488 #endif
 489
 490 /* No ASM code emitted for NMI */
 491 #define DECLARE_IDTENTRY_NMI(vector, func)
 492
 493 /*
 494  * ASM code to emit the common vector entry stubs where each stub is
 495  * packed into 8 bytes.
 496  *
 497  * Note, that the 'pushq imm8' is emitted via '.byte 0x6a, vector' because
 498  * GCC treats the local vector variable as unsigned int and would expand
 499  * all vectors above 0x7F to a 5 byte push. The original code did an
 500  * adjustment of the vector number to be in the signed byte range to avoid
 501  * this. While clever it's mindboggling counterintuitive and requires the
 502  * odd conversion back to a real vector number in the C entry points. Using
 503  * .byte achieves the same thing and the only fixup needed in the C entry
 504  * point is to mask off the bits above bit 7 because the push is sign
 505  * extending.
 506  */
 507         .align 8
 508 SYM_CODE_START(irq_entries_start)
 509     vector=FIRST_EXTERNAL_VECTOR
 510     .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
 511         UNWIND_HINT_IRET_REGS
 512 0 :
 513         .byte   0x6a, vector
 514         jmp     asm_common_interrupt
 515         nop
 516         /* Ensure that the above is 8 bytes max */
 517         . = 0b + 8
 518         vector = vector+1
 519     .endr
 520 SYM_CODE_END(irq_entries_start)
 521
 522 #ifdef CONFIG_X86_LOCAL_APIC
 523         .align 8
 524 SYM_CODE_START(spurious_entries_start)
 525     vector=FIRST_SYSTEM_VECTOR
 526     .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
 527         UNWIND_HINT_IRET_REGS
 528 0 :
 529         .byte   0x6a, vector
 530         jmp     asm_spurious_interrupt
 531         nop
 532         /* Ensure that the above is 8 bytes max */
 533         . = 0b + 8
 534         vector = vector+1
 535     .endr
 536 SYM_CODE_END(spurious_entries_start)
 537 #endif
 538
 539 #endif /* __ASSEMBLY__ */
 540
 541 /*
 542  * The actual entry points. Note that DECLARE_IDTENTRY*() serves two
 543  * purposes:
 544  *  - provide the function declarations when included from C-Code
 545  *  - emit the ASM stubs when included from entry_32/64.S
 546  *
 547  * This avoids duplicate defines and ensures that everything is consistent.
 548  */
 549
 550 /*
 551  * Dummy trap number so the low level ASM macro vector number checks do not
 552  * match which results in emitting plain IDTENTRY stubs without bells and
 553  * whistels.
 554  */
 555 #define X86_TRAP_OTHER          0xFFFF
 556
 557 /* Simple exception entry points. No hardware error code */
 558 DECLARE_IDTENTRY(X86_TRAP_DE,           exc_divide_error);
 559 DECLARE_IDTENTRY(X86_TRAP_OF,           exc_overflow);
 560 DECLARE_IDTENTRY(X86_TRAP_BR,           exc_bounds);
 561 DECLARE_IDTENTRY(X86_TRAP_NM,           exc_device_not_available);
 562 DECLARE_IDTENTRY(X86_TRAP_OLD_MF,       exc_coproc_segment_overrun);
 563 DECLARE_IDTENTRY(X86_TRAP_SPURIOUS,     exc_spurious_interrupt_bug);
 564 DECLARE_IDTENTRY(X86_TRAP_MF,           exc_coprocessor_error);
 565 DECLARE_IDTENTRY(X86_TRAP_XF,           exc_simd_coprocessor_error);
 566
 567 /* 32bit software IRET trap. Do not emit ASM code */
 568 DECLARE_IDTENTRY_SW(X86_TRAP_IRET,      iret_error);
 569
 570 /* Simple exception entries with error code pushed by hardware */
 571 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_TS, exc_invalid_tss);
 572 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_NP, exc_segment_not_present);
 573 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_SS, exc_stack_segment);
 574 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_GP, exc_general_protection);
 575 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_AC, exc_alignment_check);
 576
 577 /* Raw exception entries which need extra work */
 578 DECLARE_IDTENTRY_RAW(X86_TRAP_UD,               exc_invalid_op);
 579 DECLARE_IDTENTRY_RAW(X86_TRAP_BP,               exc_int3);
 580 DECLARE_IDTENTRY_RAW_ERRORCODE(X86_TRAP_PF,     exc_page_fault);
 581
 582 #ifdef CONFIG_X86_MCE
 583 #ifdef CONFIG_X86_64
 584 DECLARE_IDTENTRY_MCE(X86_TRAP_MC,       exc_machine_check);
 585 #else
 586 DECLARE_IDTENTRY_RAW(X86_TRAP_MC,       exc_machine_check);
 587 #endif
 588 #endif
 589
 590 /* NMI */
 591 DECLARE_IDTENTRY_NMI(X86_TRAP_NMI,      exc_nmi);
 592 #ifdef CONFIG_XEN_PV
 593 DECLARE_IDTENTRY_RAW(X86_TRAP_NMI,      xenpv_exc_nmi);
 594 #endif
 595
 596 /* #DB */
 597 #ifdef CONFIG_X86_64
 598 DECLARE_IDTENTRY_DEBUG(X86_TRAP_DB,     exc_debug);
 599 #else
 600 DECLARE_IDTENTRY_RAW(X86_TRAP_DB,       exc_debug);
 601 #endif
 602 #ifdef CONFIG_XEN_PV
 603 DECLARE_IDTENTRY_RAW(X86_TRAP_DB,       xenpv_exc_debug);
 604 #endif
 605
 606 /* #DF */
 607 DECLARE_IDTENTRY_DF(X86_TRAP_DF,        exc_double_fault);
 608
 609 /* #VC */
 610 #ifdef CONFIG_AMD_MEM_ENCRYPT
 611 DECLARE_IDTENTRY_VC(X86_TRAP_VC,        exc_vmm_communication);
 612 #endif
 613
 614 #ifdef CONFIG_XEN_PV
 615 DECLARE_IDTENTRY_XENCB(X86_TRAP_OTHER,  exc_xen_hypervisor_callback);
 616 #endif
 617
 618 /* Device interrupts common/spurious */
 619 DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER,    common_interrupt);
 620 #ifdef CONFIG_X86_LOCAL_APIC
 621 DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER,    spurious_interrupt);
 622 #endif
 623
 624 /* System vector entry points */
 625 #ifdef CONFIG_X86_LOCAL_APIC
 626 DECLARE_IDTENTRY_SYSVEC(ERROR_APIC_VECTOR,              sysvec_error_interrupt);
 627 DECLARE_IDTENTRY_SYSVEC(SPURIOUS_APIC_VECTOR,           sysvec_spurious_apic_interrupt);
 628 DECLARE_IDTENTRY_SYSVEC(LOCAL_TIMER_VECTOR,             sysvec_apic_timer_interrupt);
 629 DECLARE_IDTENTRY_SYSVEC(X86_PLATFORM_IPI_VECTOR,        sysvec_x86_platform_ipi);
 630 #endif
 631
 632 #ifdef CONFIG_SMP
 633 DECLARE_IDTENTRY(RESCHEDULE_VECTOR,                     sysvec_reschedule_ipi);
 634 DECLARE_IDTENTRY_SYSVEC(IRQ_MOVE_CLEANUP_VECTOR,        sysvec_irq_move_cleanup);
 635 DECLARE_IDTENTRY_SYSVEC(REBOOT_VECTOR,                  sysvec_reboot);
 636 DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_SINGLE_VECTOR,    sysvec_call_function_single);
 637 DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_VECTOR,           sysvec_call_function);
 638 #endif
 639
 640 #ifdef CONFIG_X86_LOCAL_APIC
 641 # ifdef CONFIG_X86_MCE_THRESHOLD
 642 DECLARE_IDTENTRY_SYSVEC(THRESHOLD_APIC_VECTOR,          sysvec_threshold);
 643 # endif
 644
 645 # ifdef CONFIG_X86_MCE_AMD
 646 DECLARE_IDTENTRY_SYSVEC(DEFERRED_ERROR_VECTOR,          sysvec_deferred_error);
 647 # endif
 648
 649 # ifdef CONFIG_X86_THERMAL_VECTOR
 650 DECLARE_IDTENTRY_SYSVEC(THERMAL_APIC_VECTOR,            sysvec_thermal);
 651 # endif
 652
 653 # ifdef CONFIG_IRQ_WORK
 654 DECLARE_IDTENTRY_SYSVEC(IRQ_WORK_VECTOR,                sysvec_irq_work);
 655 # endif
 656 #endif
 657
 658 #ifdef CONFIG_HAVE_KVM
 659 DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_VECTOR,             sysvec_kvm_posted_intr_ipi);
 660 DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_WAKEUP_VECTOR,      sysvec_kvm_posted_intr_wakeup_ipi);
 661 DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_NESTED_VECTOR,      sysvec_kvm_posted_intr_nested_ipi);
 662 #endif
 663
 664 #if IS_ENABLED(CONFIG_HYPERV)
 665 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR,     sysvec_hyperv_callback);
 666 DECLARE_IDTENTRY_SYSVEC(HYPERV_REENLIGHTENMENT_VECTOR,  sysvec_hyperv_reenlightenment);
 667 DECLARE_IDTENTRY_SYSVEC(HYPERV_STIMER0_VECTOR,  sysvec_hyperv_stimer0);
 668 #endif
 669
 670 #if IS_ENABLED(CONFIG_ACRN_GUEST)
 671 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR,     sysvec_acrn_hv_callback);
 672 #endif
 673
 674 #ifdef CONFIG_XEN_PVHVM
 675 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR,     sysvec_xen_hvm_callback);
 676 #endif
 677
 678 #ifdef CONFIG_KVM_GUEST
 679 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR,     sysvec_kvm_asyncpf_interrupt);
 680 #endif
 681
 682 #undef X86_TRAP_OTHER
 683
 684 #endif