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 void __##func(struct pt_regs *regs, u32 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 u32 vector = (u32)(u8)error_code; \ 197 \ 198 instrumentation_begin(); \ 199 kvm_set_cpu_l1tf_flush_l1d(); \ 200 run_irq_on_irqstack_cond(__##func, regs, vector); \ 201 instrumentation_end(); \ 202 irqentry_exit(regs, state); \ 203 } \ 204 \ 205 static noinline void __##func(struct pt_regs *regs, u32 vector) 206 207 /** 208 * DECLARE_IDTENTRY_SYSVEC - Declare functions for system vector entry points 209 * @vector: Vector number (ignored for C) 210 * @func: Function name of the entry point 211 * 212 * Declares three functions: 213 * - The ASM entry point: asm_##func 214 * - The XEN PV trap entry point: xen_##func (maybe unused) 215 * - The C handler called from the ASM entry point 216 * 217 * Maps to DECLARE_IDTENTRY(). 218 */ 219 #define DECLARE_IDTENTRY_SYSVEC(vector, func) \ 220 DECLARE_IDTENTRY(vector, func) 221 222 /** 223 * DEFINE_IDTENTRY_SYSVEC - Emit code for system vector IDT entry points 224 * @func: Function name of the entry point 225 * 226 * irqentry_enter/exit() and irq_enter/exit_rcu() are invoked before the 227 * function body. KVM L1D flush request is set. 228 * 229 * Runs the function on the interrupt stack if the entry hit kernel mode 230 */ 231 #define DEFINE_IDTENTRY_SYSVEC(func) \ 232 static void __##func(struct pt_regs *regs); \ 233 \ 234 __visible noinstr void func(struct pt_regs *regs) \ 235 { \ 236 irqentry_state_t state = irqentry_enter(regs); \ 237 \ 238 instrumentation_begin(); \ 239 kvm_set_cpu_l1tf_flush_l1d(); \ 240 run_sysvec_on_irqstack_cond(__##func, regs); \ 241 instrumentation_end(); \ 242 irqentry_exit(regs, state); \ 243 } \ 244 \ 245 static noinline void __##func(struct pt_regs *regs) 246 247 /** 248 * DEFINE_IDTENTRY_SYSVEC_SIMPLE - Emit code for simple system vector IDT 249 * entry points 250 * @func: Function name of the entry point 251 * 252 * Runs the function on the interrupted stack. No switch to IRQ stack and 253 * only the minimal __irq_enter/exit() handling. 254 * 255 * Only use for 'empty' vectors like reschedule IPI and KVM posted 256 * interrupt vectors. 257 */ 258 #define DEFINE_IDTENTRY_SYSVEC_SIMPLE(func) \ 259 static __always_inline void __##func(struct pt_regs *regs); \ 260 \ 261 __visible noinstr void func(struct pt_regs *regs) \ 262 { \ 263 irqentry_state_t state = irqentry_enter(regs); \ 264 \ 265 instrumentation_begin(); \ 266 __irq_enter_raw(); \ 267 kvm_set_cpu_l1tf_flush_l1d(); \ 268 __##func (regs); \ 269 __irq_exit_raw(); \ 270 instrumentation_end(); \ 271 irqentry_exit(regs, state); \ 272 } \ 273 \ 274 static __always_inline void __##func(struct pt_regs *regs) 275 276 /** 277 * DECLARE_IDTENTRY_XENCB - Declare functions for XEN HV callback entry point 278 * @vector: Vector number (ignored for C) 279 * @func: Function name of the entry point 280 * 281 * Declares three functions: 282 * - The ASM entry point: asm_##func 283 * - The XEN PV trap entry point: xen_##func (maybe unused) 284 * - The C handler called from the ASM entry point 285 * 286 * Maps to DECLARE_IDTENTRY(). Distinct entry point to handle the 32/64-bit 287 * difference 288 */ 289 #define DECLARE_IDTENTRY_XENCB(vector, func) \ 290 DECLARE_IDTENTRY(vector, func) 291 292 #ifdef CONFIG_X86_64 293 /** 294 * DECLARE_IDTENTRY_IST - Declare functions for IST handling IDT entry points 295 * @vector: Vector number (ignored for C) 296 * @func: Function name of the entry point 297 * 298 * Maps to DECLARE_IDTENTRY_RAW, but declares also the NOIST C handler 299 * which is called from the ASM entry point on user mode entry 300 */ 301 #define DECLARE_IDTENTRY_IST(vector, func) \ 302 DECLARE_IDTENTRY_RAW(vector, func); \ 303 __visible void noist_##func(struct pt_regs *regs) 304 305 /** 306 * DECLARE_IDTENTRY_VC - Declare functions for the VC entry point 307 * @vector: Vector number (ignored for C) 308 * @func: Function name of the entry point 309 * 310 * Maps to DECLARE_IDTENTRY_RAW_ERRORCODE, but declares also the 311 * safe_stack C handler. 312 */ 313 #define DECLARE_IDTENTRY_VC(vector, func) \ 314 DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func); \ 315 __visible noinstr void kernel_##func(struct pt_regs *regs, unsigned long error_code); \ 316 __visible noinstr void user_##func(struct pt_regs *regs, unsigned long error_code) 317 318 /** 319 * DEFINE_IDTENTRY_IST - Emit code for IST entry points 320 * @func: Function name of the entry point 321 * 322 * Maps to DEFINE_IDTENTRY_RAW 323 */ 324 #define DEFINE_IDTENTRY_IST(func) \ 325 DEFINE_IDTENTRY_RAW(func) 326 327 /** 328 * DEFINE_IDTENTRY_NOIST - Emit code for NOIST entry points which 329 * belong to a IST entry point (MCE, DB) 330 * @func: Function name of the entry point. Must be the same as 331 * the function name of the corresponding IST variant 332 * 333 * Maps to DEFINE_IDTENTRY_RAW(). 334 */ 335 #define DEFINE_IDTENTRY_NOIST(func) \ 336 DEFINE_IDTENTRY_RAW(noist_##func) 337 338 /** 339 * DECLARE_IDTENTRY_DF - Declare functions for double fault 340 * @vector: Vector number (ignored for C) 341 * @func: Function name of the entry point 342 * 343 * Maps to DECLARE_IDTENTRY_RAW_ERRORCODE 344 */ 345 #define DECLARE_IDTENTRY_DF(vector, func) \ 346 DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func) 347 348 /** 349 * DEFINE_IDTENTRY_DF - Emit code for double fault 350 * @func: Function name of the entry point 351 * 352 * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE 353 */ 354 #define DEFINE_IDTENTRY_DF(func) \ 355 DEFINE_IDTENTRY_RAW_ERRORCODE(func) 356 357 /** 358 * DEFINE_IDTENTRY_VC_KERNEL - Emit code for VMM communication handler 359 when raised from kernel mode 360 * @func: Function name of the entry point 361 * 362 * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE 363 */ 364 #define DEFINE_IDTENTRY_VC_KERNEL(func) \ 365 DEFINE_IDTENTRY_RAW_ERRORCODE(kernel_##func) 366 367 /** 368 * DEFINE_IDTENTRY_VC_USER - Emit code for VMM communication handler 369 when raised from user mode 370 * @func: Function name of the entry point 371 * 372 * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE 373 */ 374 #define DEFINE_IDTENTRY_VC_USER(func) \ 375 DEFINE_IDTENTRY_RAW_ERRORCODE(user_##func) 376 377 #else /* CONFIG_X86_64 */ 378 379 /** 380 * DECLARE_IDTENTRY_DF - Declare functions for double fault 32bit variant 381 * @vector: Vector number (ignored for C) 382 * @func: Function name of the entry point 383 * 384 * Declares two functions: 385 * - The ASM entry point: asm_##func 386 * - The C handler called from the C shim 387 */ 388 #define DECLARE_IDTENTRY_DF(vector, func) \ 389 asmlinkage void asm_##func(void); \ 390 __visible void func(struct pt_regs *regs, \ 391 unsigned long error_code, \ 392 unsigned long address) 393 394 /** 395 * DEFINE_IDTENTRY_DF - Emit code for double fault on 32bit 396 * @func: Function name of the entry point 397 * 398 * This is called through the doublefault shim which already provides 399 * cr2 in the address argument. 400 */ 401 #define DEFINE_IDTENTRY_DF(func) \ 402 __visible noinstr void func(struct pt_regs *regs, \ 403 unsigned long error_code, \ 404 unsigned long address) 405 406 #endif /* !CONFIG_X86_64 */ 407 408 /* C-Code mapping */ 409 #define DECLARE_IDTENTRY_NMI DECLARE_IDTENTRY_RAW 410 #define DEFINE_IDTENTRY_NMI DEFINE_IDTENTRY_RAW 411 412 #ifdef CONFIG_X86_64 413 #define DECLARE_IDTENTRY_MCE DECLARE_IDTENTRY_IST 414 #define DEFINE_IDTENTRY_MCE DEFINE_IDTENTRY_IST 415 #define DEFINE_IDTENTRY_MCE_USER DEFINE_IDTENTRY_NOIST 416 417 #define DECLARE_IDTENTRY_DEBUG DECLARE_IDTENTRY_IST 418 #define DEFINE_IDTENTRY_DEBUG DEFINE_IDTENTRY_IST 419 #define DEFINE_IDTENTRY_DEBUG_USER DEFINE_IDTENTRY_NOIST 420 #endif 421 422 #else /* !__ASSEMBLY__ */ 423 424 /* 425 * The ASM variants for DECLARE_IDTENTRY*() which emit the ASM entry stubs. 426 */ 427 #define DECLARE_IDTENTRY(vector, func) \ 428 idtentry vector asm_##func func has_error_code=0 429 430 #define DECLARE_IDTENTRY_ERRORCODE(vector, func) \ 431 idtentry vector asm_##func func has_error_code=1 432 433 /* Special case for 32bit IRET 'trap'. Do not emit ASM code */ 434 #define DECLARE_IDTENTRY_SW(vector, func) 435 436 #define DECLARE_IDTENTRY_RAW(vector, func) \ 437 DECLARE_IDTENTRY(vector, func) 438 439 #define DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func) \ 440 DECLARE_IDTENTRY_ERRORCODE(vector, func) 441 442 /* Entries for common/spurious (device) interrupts */ 443 #define DECLARE_IDTENTRY_IRQ(vector, func) \ 444 idtentry_irq vector func 445 446 /* System vector entries */ 447 #define DECLARE_IDTENTRY_SYSVEC(vector, func) \ 448 idtentry_sysvec vector func 449 450 #ifdef CONFIG_X86_64 451 # define DECLARE_IDTENTRY_MCE(vector, func) \ 452 idtentry_mce_db vector asm_##func func 453 454 # define DECLARE_IDTENTRY_DEBUG(vector, func) \ 455 idtentry_mce_db vector asm_##func func 456 457 # define DECLARE_IDTENTRY_DF(vector, func) \ 458 idtentry_df vector asm_##func func 459 460 # define DECLARE_IDTENTRY_XENCB(vector, func) \ 461 DECLARE_IDTENTRY(vector, func) 462 463 # define DECLARE_IDTENTRY_VC(vector, func) \ 464 idtentry_vc vector asm_##func func 465 466 #else 467 # define DECLARE_IDTENTRY_MCE(vector, func) \ 468 DECLARE_IDTENTRY(vector, func) 469 470 /* No ASM emitted for DF as this goes through a C shim */ 471 # define DECLARE_IDTENTRY_DF(vector, func) 472 473 /* No ASM emitted for XEN hypervisor callback */ 474 # define DECLARE_IDTENTRY_XENCB(vector, func) 475 476 #endif 477 478 /* No ASM code emitted for NMI */ 479 #define DECLARE_IDTENTRY_NMI(vector, func) 480 481 /* 482 * ASM code to emit the common vector entry stubs where each stub is 483 * packed into 8 bytes. 484 * 485 * Note, that the 'pushq imm8' is emitted via '.byte 0x6a, vector' because 486 * GCC treats the local vector variable as unsigned int and would expand 487 * all vectors above 0x7F to a 5 byte push. The original code did an 488 * adjustment of the vector number to be in the signed byte range to avoid 489 * this. While clever it's mindboggling counterintuitive and requires the 490 * odd conversion back to a real vector number in the C entry points. Using 491 * .byte achieves the same thing and the only fixup needed in the C entry 492 * point is to mask off the bits above bit 7 because the push is sign 493 * extending. 494 */ 495 .align 8 496 SYM_CODE_START(irq_entries_start) 497 vector=FIRST_EXTERNAL_VECTOR 498 .rept NR_EXTERNAL_VECTORS 499 UNWIND_HINT_IRET_REGS 500 0 : 501 .byte 0x6a, vector 502 jmp asm_common_interrupt 503 nop 504 /* Ensure that the above is 8 bytes max */ 505 . = 0b + 8 506 vector = vector+1 507 .endr 508 SYM_CODE_END(irq_entries_start) 509 510 #ifdef CONFIG_X86_LOCAL_APIC 511 .align 8 512 SYM_CODE_START(spurious_entries_start) 513 vector=FIRST_SYSTEM_VECTOR 514 .rept NR_SYSTEM_VECTORS 515 UNWIND_HINT_IRET_REGS 516 0 : 517 .byte 0x6a, vector 518 jmp asm_spurious_interrupt 519 nop 520 /* Ensure that the above is 8 bytes max */ 521 . = 0b + 8 522 vector = vector+1 523 .endr 524 SYM_CODE_END(spurious_entries_start) 525 #endif 526 527 #endif /* __ASSEMBLY__ */ 528 529 /* 530 * The actual entry points. Note that DECLARE_IDTENTRY*() serves two 531 * purposes: 532 * - provide the function declarations when included from C-Code 533 * - emit the ASM stubs when included from entry_32/64.S 534 * 535 * This avoids duplicate defines and ensures that everything is consistent. 536 */ 537 538 /* 539 * Dummy trap number so the low level ASM macro vector number checks do not 540 * match which results in emitting plain IDTENTRY stubs without bells and 541 * whistles. 542 */ 543 #define X86_TRAP_OTHER 0xFFFF 544 545 /* Simple exception entry points. No hardware error code */ 546 DECLARE_IDTENTRY(X86_TRAP_DE, exc_divide_error); 547 DECLARE_IDTENTRY(X86_TRAP_OF, exc_overflow); 548 DECLARE_IDTENTRY(X86_TRAP_BR, exc_bounds); 549 DECLARE_IDTENTRY(X86_TRAP_NM, exc_device_not_available); 550 DECLARE_IDTENTRY(X86_TRAP_OLD_MF, exc_coproc_segment_overrun); 551 DECLARE_IDTENTRY(X86_TRAP_SPURIOUS, exc_spurious_interrupt_bug); 552 DECLARE_IDTENTRY(X86_TRAP_MF, exc_coprocessor_error); 553 DECLARE_IDTENTRY(X86_TRAP_XF, exc_simd_coprocessor_error); 554 555 /* 32bit software IRET trap. Do not emit ASM code */ 556 DECLARE_IDTENTRY_SW(X86_TRAP_IRET, iret_error); 557 558 /* Simple exception entries with error code pushed by hardware */ 559 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_TS, exc_invalid_tss); 560 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_NP, exc_segment_not_present); 561 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_SS, exc_stack_segment); 562 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_GP, exc_general_protection); 563 DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_AC, exc_alignment_check); 564 565 /* Raw exception entries which need extra work */ 566 DECLARE_IDTENTRY_RAW(X86_TRAP_UD, exc_invalid_op); 567 DECLARE_IDTENTRY_RAW(X86_TRAP_BP, exc_int3); 568 DECLARE_IDTENTRY_RAW_ERRORCODE(X86_TRAP_PF, exc_page_fault); 569 570 #ifdef CONFIG_X86_MCE 571 #ifdef CONFIG_X86_64 572 DECLARE_IDTENTRY_MCE(X86_TRAP_MC, exc_machine_check); 573 #else 574 DECLARE_IDTENTRY_RAW(X86_TRAP_MC, exc_machine_check); 575 #endif 576 #ifdef CONFIG_XEN_PV 577 DECLARE_IDTENTRY_RAW(X86_TRAP_MC, xenpv_exc_machine_check); 578 #endif 579 #endif 580 581 /* NMI */ 582 583 #if defined(CONFIG_X86_64) && IS_ENABLED(CONFIG_KVM_INTEL) 584 /* 585 * Special NOIST entry point for VMX which invokes this on the kernel 586 * stack. asm_exc_nmi() requires an IST to work correctly vs. the NMI 587 * 'executing' marker. 588 * 589 * On 32bit this just uses the regular NMI entry point because 32-bit does 590 * not have ISTs. 591 */ 592 DECLARE_IDTENTRY(X86_TRAP_NMI, exc_nmi_noist); 593 #else 594 #define asm_exc_nmi_noist asm_exc_nmi 595 #endif 596 597 DECLARE_IDTENTRY_NMI(X86_TRAP_NMI, exc_nmi); 598 #ifdef CONFIG_XEN_PV 599 DECLARE_IDTENTRY_RAW(X86_TRAP_NMI, xenpv_exc_nmi); 600 #endif 601 602 /* #DB */ 603 #ifdef CONFIG_X86_64 604 DECLARE_IDTENTRY_DEBUG(X86_TRAP_DB, exc_debug); 605 #else 606 DECLARE_IDTENTRY_RAW(X86_TRAP_DB, exc_debug); 607 #endif 608 #ifdef CONFIG_XEN_PV 609 DECLARE_IDTENTRY_RAW(X86_TRAP_DB, xenpv_exc_debug); 610 #endif 611 612 /* #DF */ 613 DECLARE_IDTENTRY_DF(X86_TRAP_DF, exc_double_fault); 614 #ifdef CONFIG_XEN_PV 615 DECLARE_IDTENTRY_RAW_ERRORCODE(X86_TRAP_DF, xenpv_exc_double_fault); 616 #endif 617 618 /* #VC */ 619 #ifdef CONFIG_AMD_MEM_ENCRYPT 620 DECLARE_IDTENTRY_VC(X86_TRAP_VC, exc_vmm_communication); 621 #endif 622 623 #ifdef CONFIG_XEN_PV 624 DECLARE_IDTENTRY_XENCB(X86_TRAP_OTHER, exc_xen_hypervisor_callback); 625 DECLARE_IDTENTRY_RAW(X86_TRAP_OTHER, exc_xen_unknown_trap); 626 #endif 627 628 /* Device interrupts common/spurious */ 629 DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER, common_interrupt); 630 #ifdef CONFIG_X86_LOCAL_APIC 631 DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER, spurious_interrupt); 632 #endif 633 634 /* System vector entry points */ 635 #ifdef CONFIG_X86_LOCAL_APIC 636 DECLARE_IDTENTRY_SYSVEC(ERROR_APIC_VECTOR, sysvec_error_interrupt); 637 DECLARE_IDTENTRY_SYSVEC(SPURIOUS_APIC_VECTOR, sysvec_spurious_apic_interrupt); 638 DECLARE_IDTENTRY_SYSVEC(LOCAL_TIMER_VECTOR, sysvec_apic_timer_interrupt); 639 DECLARE_IDTENTRY_SYSVEC(X86_PLATFORM_IPI_VECTOR, sysvec_x86_platform_ipi); 640 #endif 641 642 #ifdef CONFIG_SMP 643 DECLARE_IDTENTRY(RESCHEDULE_VECTOR, sysvec_reschedule_ipi); 644 DECLARE_IDTENTRY_SYSVEC(IRQ_MOVE_CLEANUP_VECTOR, sysvec_irq_move_cleanup); 645 DECLARE_IDTENTRY_SYSVEC(REBOOT_VECTOR, sysvec_reboot); 646 DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_SINGLE_VECTOR, sysvec_call_function_single); 647 DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_VECTOR, sysvec_call_function); 648 #endif 649 650 #ifdef CONFIG_X86_LOCAL_APIC 651 # ifdef CONFIG_X86_MCE_THRESHOLD 652 DECLARE_IDTENTRY_SYSVEC(THRESHOLD_APIC_VECTOR, sysvec_threshold); 653 # endif 654 655 # ifdef CONFIG_X86_MCE_AMD 656 DECLARE_IDTENTRY_SYSVEC(DEFERRED_ERROR_VECTOR, sysvec_deferred_error); 657 # endif 658 659 # ifdef CONFIG_X86_THERMAL_VECTOR 660 DECLARE_IDTENTRY_SYSVEC(THERMAL_APIC_VECTOR, sysvec_thermal); 661 # endif 662 663 # ifdef CONFIG_IRQ_WORK 664 DECLARE_IDTENTRY_SYSVEC(IRQ_WORK_VECTOR, sysvec_irq_work); 665 # endif 666 #endif 667 668 #ifdef CONFIG_HAVE_KVM 669 DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_VECTOR, sysvec_kvm_posted_intr_ipi); 670 DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_WAKEUP_VECTOR, sysvec_kvm_posted_intr_wakeup_ipi); 671 DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_NESTED_VECTOR, sysvec_kvm_posted_intr_nested_ipi); 672 #endif 673 674 #if IS_ENABLED(CONFIG_HYPERV) 675 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_hyperv_callback); 676 DECLARE_IDTENTRY_SYSVEC(HYPERV_REENLIGHTENMENT_VECTOR, sysvec_hyperv_reenlightenment); 677 DECLARE_IDTENTRY_SYSVEC(HYPERV_STIMER0_VECTOR, sysvec_hyperv_stimer0); 678 #endif 679 680 #if IS_ENABLED(CONFIG_ACRN_GUEST) 681 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_acrn_hv_callback); 682 #endif 683 684 #ifdef CONFIG_XEN_PVHVM 685 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_xen_hvm_callback); 686 #endif 687 688 #ifdef CONFIG_KVM_GUEST 689 DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_kvm_asyncpf_interrupt); 690 #endif 691 692 #undef X86_TRAP_OTHER 693 694 #endif 695