1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Kernel-based Virtual Machine driver for Linux 4 * 5 * AMD SVM support 6 * 7 * Copyright (C) 2006 Qumranet, Inc. 8 * Copyright 2010 Red Hat, Inc. and/or its affiliates. 9 * 10 * Authors: 11 * Yaniv Kamay <yaniv@qumranet.com> 12 * Avi Kivity <avi@qumranet.com> 13 */ 14 15 #ifndef __SVM_SVM_H 16 #define __SVM_SVM_H 17 18 #include <linux/kvm_types.h> 19 #include <linux/kvm_host.h> 20 #include <linux/bits.h> 21 22 #include <asm/svm.h> 23 #include <asm/sev-common.h> 24 25 #include "cpuid.h" 26 #include "kvm_cache_regs.h" 27 28 #define __sme_page_pa(x) __sme_set(page_to_pfn(x) << PAGE_SHIFT) 29 30 #define IOPM_SIZE PAGE_SIZE * 3 31 #define MSRPM_SIZE PAGE_SIZE * 2 32 33 #define MAX_DIRECT_ACCESS_MSRS 46 34 #define MSRPM_OFFSETS 32 35 extern u32 msrpm_offsets[MSRPM_OFFSETS] __read_mostly; 36 extern bool npt_enabled; 37 extern int nrips; 38 extern int vgif; 39 extern bool intercept_smi; 40 extern bool x2avic_enabled; 41 extern bool vnmi; 42 43 /* 44 * Clean bits in VMCB. 45 * VMCB_ALL_CLEAN_MASK might also need to 46 * be updated if this enum is modified. 47 */ 48 enum { 49 VMCB_INTERCEPTS, /* Intercept vectors, TSC offset, 50 pause filter count */ 51 VMCB_PERM_MAP, /* IOPM Base and MSRPM Base */ 52 VMCB_ASID, /* ASID */ 53 VMCB_INTR, /* int_ctl, int_vector */ 54 VMCB_NPT, /* npt_en, nCR3, gPAT */ 55 VMCB_CR, /* CR0, CR3, CR4, EFER */ 56 VMCB_DR, /* DR6, DR7 */ 57 VMCB_DT, /* GDT, IDT */ 58 VMCB_SEG, /* CS, DS, SS, ES, CPL */ 59 VMCB_CR2, /* CR2 only */ 60 VMCB_LBR, /* DBGCTL, BR_FROM, BR_TO, LAST_EX_FROM, LAST_EX_TO */ 61 VMCB_AVIC, /* AVIC APIC_BAR, AVIC APIC_BACKING_PAGE, 62 * AVIC PHYSICAL_TABLE pointer, 63 * AVIC LOGICAL_TABLE pointer 64 */ 65 VMCB_SW = 31, /* Reserved for hypervisor/software use */ 66 }; 67 68 #define VMCB_ALL_CLEAN_MASK ( \ 69 (1U << VMCB_INTERCEPTS) | (1U << VMCB_PERM_MAP) | \ 70 (1U << VMCB_ASID) | (1U << VMCB_INTR) | \ 71 (1U << VMCB_NPT) | (1U << VMCB_CR) | (1U << VMCB_DR) | \ 72 (1U << VMCB_DT) | (1U << VMCB_SEG) | (1U << VMCB_CR2) | \ 73 (1U << VMCB_LBR) | (1U << VMCB_AVIC) | \ 74 (1U << VMCB_SW)) 75 76 /* TPR and CR2 are always written before VMRUN */ 77 #define VMCB_ALWAYS_DIRTY_MASK ((1U << VMCB_INTR) | (1U << VMCB_CR2)) 78 79 struct kvm_sev_info { 80 bool active; /* SEV enabled guest */ 81 bool es_active; /* SEV-ES enabled guest */ 82 unsigned int asid; /* ASID used for this guest */ 83 unsigned int handle; /* SEV firmware handle */ 84 int fd; /* SEV device fd */ 85 unsigned long pages_locked; /* Number of pages locked */ 86 struct list_head regions_list; /* List of registered regions */ 87 u64 ap_jump_table; /* SEV-ES AP Jump Table address */ 88 struct kvm *enc_context_owner; /* Owner of copied encryption context */ 89 struct list_head mirror_vms; /* List of VMs mirroring */ 90 struct list_head mirror_entry; /* Use as a list entry of mirrors */ 91 struct misc_cg *misc_cg; /* For misc cgroup accounting */ 92 atomic_t migration_in_progress; 93 }; 94 95 struct kvm_svm { 96 struct kvm kvm; 97 98 /* Struct members for AVIC */ 99 u32 avic_vm_id; 100 struct page *avic_logical_id_table_page; 101 struct page *avic_physical_id_table_page; 102 struct hlist_node hnode; 103 104 struct kvm_sev_info sev_info; 105 }; 106 107 struct kvm_vcpu; 108 109 struct kvm_vmcb_info { 110 struct vmcb *ptr; 111 unsigned long pa; 112 int cpu; 113 uint64_t asid_generation; 114 }; 115 116 struct vmcb_save_area_cached { 117 u64 efer; 118 u64 cr4; 119 u64 cr3; 120 u64 cr0; 121 u64 dr7; 122 u64 dr6; 123 }; 124 125 struct vmcb_ctrl_area_cached { 126 u32 intercepts[MAX_INTERCEPT]; 127 u16 pause_filter_thresh; 128 u16 pause_filter_count; 129 u64 iopm_base_pa; 130 u64 msrpm_base_pa; 131 u64 tsc_offset; 132 u32 asid; 133 u8 tlb_ctl; 134 u32 int_ctl; 135 u32 int_vector; 136 u32 int_state; 137 u32 exit_code; 138 u32 exit_code_hi; 139 u64 exit_info_1; 140 u64 exit_info_2; 141 u32 exit_int_info; 142 u32 exit_int_info_err; 143 u64 nested_ctl; 144 u32 event_inj; 145 u32 event_inj_err; 146 u64 next_rip; 147 u64 nested_cr3; 148 u64 virt_ext; 149 u32 clean; 150 union { 151 struct hv_vmcb_enlightenments hv_enlightenments; 152 u8 reserved_sw[32]; 153 }; 154 }; 155 156 struct svm_nested_state { 157 struct kvm_vmcb_info vmcb02; 158 u64 hsave_msr; 159 u64 vm_cr_msr; 160 u64 vmcb12_gpa; 161 u64 last_vmcb12_gpa; 162 163 /* These are the merged vectors */ 164 u32 *msrpm; 165 166 /* A VMRUN has started but has not yet been performed, so 167 * we cannot inject a nested vmexit yet. */ 168 bool nested_run_pending; 169 170 /* cache for control fields of the guest */ 171 struct vmcb_ctrl_area_cached ctl; 172 173 /* 174 * Note: this struct is not kept up-to-date while L2 runs; it is only 175 * valid within nested_svm_vmrun. 176 */ 177 struct vmcb_save_area_cached save; 178 179 bool initialized; 180 181 /* 182 * Indicates whether MSR bitmap for L2 needs to be rebuilt due to 183 * changes in MSR bitmap for L1 or switching to a different L2. Note, 184 * this flag can only be used reliably in conjunction with a paravirt L1 185 * which informs L0 whether any changes to MSR bitmap for L2 were done 186 * on its side. 187 */ 188 bool force_msr_bitmap_recalc; 189 }; 190 191 struct vcpu_sev_es_state { 192 /* SEV-ES support */ 193 struct sev_es_save_area *vmsa; 194 struct ghcb *ghcb; 195 u8 valid_bitmap[16]; 196 struct kvm_host_map ghcb_map; 197 bool received_first_sipi; 198 199 /* SEV-ES scratch area support */ 200 u64 sw_scratch; 201 void *ghcb_sa; 202 u32 ghcb_sa_len; 203 bool ghcb_sa_sync; 204 bool ghcb_sa_free; 205 }; 206 207 struct vcpu_svm { 208 struct kvm_vcpu vcpu; 209 /* vmcb always points at current_vmcb->ptr, it's purely a shorthand. */ 210 struct vmcb *vmcb; 211 struct kvm_vmcb_info vmcb01; 212 struct kvm_vmcb_info *current_vmcb; 213 u32 asid; 214 u32 sysenter_esp_hi; 215 u32 sysenter_eip_hi; 216 uint64_t tsc_aux; 217 218 u64 msr_decfg; 219 220 u64 next_rip; 221 222 u64 spec_ctrl; 223 224 u64 tsc_ratio_msr; 225 /* 226 * Contains guest-controlled bits of VIRT_SPEC_CTRL, which will be 227 * translated into the appropriate L2_CFG bits on the host to 228 * perform speculative control. 229 */ 230 u64 virt_spec_ctrl; 231 232 u32 *msrpm; 233 234 ulong nmi_iret_rip; 235 236 struct svm_nested_state nested; 237 238 /* NMI mask value, used when vNMI is not enabled */ 239 bool nmi_masked; 240 241 /* 242 * True when NMIs are still masked but guest IRET was just intercepted 243 * and KVM is waiting for RIP to change, which will signal that the 244 * intercepted IRET was retired and thus NMI can be unmasked. 245 */ 246 bool awaiting_iret_completion; 247 248 /* 249 * Set when KVM is awaiting IRET completion and needs to inject NMIs as 250 * soon as the IRET completes (e.g. NMI is pending injection). KVM 251 * temporarily steals RFLAGS.TF to single-step the guest in this case 252 * in order to regain control as soon as the NMI-blocking condition 253 * goes away. 254 */ 255 bool nmi_singlestep; 256 u64 nmi_singlestep_guest_rflags; 257 258 bool nmi_l1_to_l2; 259 260 unsigned long soft_int_csbase; 261 unsigned long soft_int_old_rip; 262 unsigned long soft_int_next_rip; 263 bool soft_int_injected; 264 265 u32 ldr_reg; 266 u32 dfr_reg; 267 struct page *avic_backing_page; 268 u64 *avic_physical_id_cache; 269 270 /* 271 * Per-vcpu list of struct amd_svm_iommu_ir: 272 * This is used mainly to store interrupt remapping information used 273 * when update the vcpu affinity. This avoids the need to scan for 274 * IRTE and try to match ga_tag in the IOMMU driver. 275 */ 276 struct list_head ir_list; 277 spinlock_t ir_list_lock; 278 279 /* Save desired MSR intercept (read: pass-through) state */ 280 struct { 281 DECLARE_BITMAP(read, MAX_DIRECT_ACCESS_MSRS); 282 DECLARE_BITMAP(write, MAX_DIRECT_ACCESS_MSRS); 283 } shadow_msr_intercept; 284 285 struct vcpu_sev_es_state sev_es; 286 287 bool guest_state_loaded; 288 289 bool x2avic_msrs_intercepted; 290 291 /* Guest GIF value, used when vGIF is not enabled */ 292 bool guest_gif; 293 }; 294 295 struct svm_cpu_data { 296 u64 asid_generation; 297 u32 max_asid; 298 u32 next_asid; 299 u32 min_asid; 300 301 struct page *save_area; 302 unsigned long save_area_pa; 303 304 struct vmcb *current_vmcb; 305 306 /* index = sev_asid, value = vmcb pointer */ 307 struct vmcb **sev_vmcbs; 308 }; 309 310 DECLARE_PER_CPU(struct svm_cpu_data, svm_data); 311 312 void recalc_intercepts(struct vcpu_svm *svm); 313 314 static __always_inline struct kvm_svm *to_kvm_svm(struct kvm *kvm) 315 { 316 return container_of(kvm, struct kvm_svm, kvm); 317 } 318 319 static __always_inline bool sev_guest(struct kvm *kvm) 320 { 321 #ifdef CONFIG_KVM_AMD_SEV 322 struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; 323 324 return sev->active; 325 #else 326 return false; 327 #endif 328 } 329 330 static __always_inline bool sev_es_guest(struct kvm *kvm) 331 { 332 #ifdef CONFIG_KVM_AMD_SEV 333 struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; 334 335 return sev->es_active && !WARN_ON_ONCE(!sev->active); 336 #else 337 return false; 338 #endif 339 } 340 341 static inline void vmcb_mark_all_dirty(struct vmcb *vmcb) 342 { 343 vmcb->control.clean = 0; 344 } 345 346 static inline void vmcb_mark_all_clean(struct vmcb *vmcb) 347 { 348 vmcb->control.clean = VMCB_ALL_CLEAN_MASK 349 & ~VMCB_ALWAYS_DIRTY_MASK; 350 } 351 352 static inline void vmcb_mark_dirty(struct vmcb *vmcb, int bit) 353 { 354 vmcb->control.clean &= ~(1 << bit); 355 } 356 357 static inline bool vmcb_is_dirty(struct vmcb *vmcb, int bit) 358 { 359 return !test_bit(bit, (unsigned long *)&vmcb->control.clean); 360 } 361 362 static __always_inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu) 363 { 364 return container_of(vcpu, struct vcpu_svm, vcpu); 365 } 366 367 /* 368 * Only the PDPTRs are loaded on demand into the shadow MMU. All other 369 * fields are synchronized on VM-Exit, because accessing the VMCB is cheap. 370 * 371 * CR3 might be out of date in the VMCB but it is not marked dirty; instead, 372 * KVM_REQ_LOAD_MMU_PGD is always requested when the cached vcpu->arch.cr3 373 * is changed. svm_load_mmu_pgd() then syncs the new CR3 value into the VMCB. 374 */ 375 #define SVM_REGS_LAZY_LOAD_SET (1 << VCPU_EXREG_PDPTR) 376 377 static inline void vmcb_set_intercept(struct vmcb_control_area *control, u32 bit) 378 { 379 WARN_ON_ONCE(bit >= 32 * MAX_INTERCEPT); 380 __set_bit(bit, (unsigned long *)&control->intercepts); 381 } 382 383 static inline void vmcb_clr_intercept(struct vmcb_control_area *control, u32 bit) 384 { 385 WARN_ON_ONCE(bit >= 32 * MAX_INTERCEPT); 386 __clear_bit(bit, (unsigned long *)&control->intercepts); 387 } 388 389 static inline bool vmcb_is_intercept(struct vmcb_control_area *control, u32 bit) 390 { 391 WARN_ON_ONCE(bit >= 32 * MAX_INTERCEPT); 392 return test_bit(bit, (unsigned long *)&control->intercepts); 393 } 394 395 static inline bool vmcb12_is_intercept(struct vmcb_ctrl_area_cached *control, u32 bit) 396 { 397 WARN_ON_ONCE(bit >= 32 * MAX_INTERCEPT); 398 return test_bit(bit, (unsigned long *)&control->intercepts); 399 } 400 401 static inline void set_exception_intercept(struct vcpu_svm *svm, u32 bit) 402 { 403 struct vmcb *vmcb = svm->vmcb01.ptr; 404 405 WARN_ON_ONCE(bit >= 32); 406 vmcb_set_intercept(&vmcb->control, INTERCEPT_EXCEPTION_OFFSET + bit); 407 408 recalc_intercepts(svm); 409 } 410 411 static inline void clr_exception_intercept(struct vcpu_svm *svm, u32 bit) 412 { 413 struct vmcb *vmcb = svm->vmcb01.ptr; 414 415 WARN_ON_ONCE(bit >= 32); 416 vmcb_clr_intercept(&vmcb->control, INTERCEPT_EXCEPTION_OFFSET + bit); 417 418 recalc_intercepts(svm); 419 } 420 421 static inline void svm_set_intercept(struct vcpu_svm *svm, int bit) 422 { 423 struct vmcb *vmcb = svm->vmcb01.ptr; 424 425 vmcb_set_intercept(&vmcb->control, bit); 426 427 recalc_intercepts(svm); 428 } 429 430 static inline void svm_clr_intercept(struct vcpu_svm *svm, int bit) 431 { 432 struct vmcb *vmcb = svm->vmcb01.ptr; 433 434 vmcb_clr_intercept(&vmcb->control, bit); 435 436 recalc_intercepts(svm); 437 } 438 439 static inline bool svm_is_intercept(struct vcpu_svm *svm, int bit) 440 { 441 return vmcb_is_intercept(&svm->vmcb->control, bit); 442 } 443 444 static inline bool nested_vgif_enabled(struct vcpu_svm *svm) 445 { 446 return guest_can_use(&svm->vcpu, X86_FEATURE_VGIF) && 447 (svm->nested.ctl.int_ctl & V_GIF_ENABLE_MASK); 448 } 449 450 static inline struct vmcb *get_vgif_vmcb(struct vcpu_svm *svm) 451 { 452 if (!vgif) 453 return NULL; 454 455 if (is_guest_mode(&svm->vcpu) && !nested_vgif_enabled(svm)) 456 return svm->nested.vmcb02.ptr; 457 else 458 return svm->vmcb01.ptr; 459 } 460 461 static inline void enable_gif(struct vcpu_svm *svm) 462 { 463 struct vmcb *vmcb = get_vgif_vmcb(svm); 464 465 if (vmcb) 466 vmcb->control.int_ctl |= V_GIF_MASK; 467 else 468 svm->guest_gif = true; 469 } 470 471 static inline void disable_gif(struct vcpu_svm *svm) 472 { 473 struct vmcb *vmcb = get_vgif_vmcb(svm); 474 475 if (vmcb) 476 vmcb->control.int_ctl &= ~V_GIF_MASK; 477 else 478 svm->guest_gif = false; 479 } 480 481 static inline bool gif_set(struct vcpu_svm *svm) 482 { 483 struct vmcb *vmcb = get_vgif_vmcb(svm); 484 485 if (vmcb) 486 return !!(vmcb->control.int_ctl & V_GIF_MASK); 487 else 488 return svm->guest_gif; 489 } 490 491 static inline bool nested_npt_enabled(struct vcpu_svm *svm) 492 { 493 return svm->nested.ctl.nested_ctl & SVM_NESTED_CTL_NP_ENABLE; 494 } 495 496 static inline bool nested_vnmi_enabled(struct vcpu_svm *svm) 497 { 498 return guest_can_use(&svm->vcpu, X86_FEATURE_VNMI) && 499 (svm->nested.ctl.int_ctl & V_NMI_ENABLE_MASK); 500 } 501 502 static inline bool is_x2apic_msrpm_offset(u32 offset) 503 { 504 /* 4 msrs per u8, and 4 u8 in u32 */ 505 u32 msr = offset * 16; 506 507 return (msr >= APIC_BASE_MSR) && 508 (msr < (APIC_BASE_MSR + 0x100)); 509 } 510 511 static inline struct vmcb *get_vnmi_vmcb_l1(struct vcpu_svm *svm) 512 { 513 if (!vnmi) 514 return NULL; 515 516 if (is_guest_mode(&svm->vcpu)) 517 return NULL; 518 else 519 return svm->vmcb01.ptr; 520 } 521 522 static inline bool is_vnmi_enabled(struct vcpu_svm *svm) 523 { 524 struct vmcb *vmcb = get_vnmi_vmcb_l1(svm); 525 526 if (vmcb) 527 return !!(vmcb->control.int_ctl & V_NMI_ENABLE_MASK); 528 else 529 return false; 530 } 531 532 /* svm.c */ 533 #define MSR_INVALID 0xffffffffU 534 535 #define DEBUGCTL_RESERVED_BITS (~(0x3fULL)) 536 537 extern bool dump_invalid_vmcb; 538 539 u32 svm_msrpm_offset(u32 msr); 540 u32 *svm_vcpu_alloc_msrpm(void); 541 void svm_vcpu_init_msrpm(struct kvm_vcpu *vcpu, u32 *msrpm); 542 void svm_vcpu_free_msrpm(u32 *msrpm); 543 void svm_copy_lbrs(struct vmcb *to_vmcb, struct vmcb *from_vmcb); 544 void svm_update_lbrv(struct kvm_vcpu *vcpu); 545 546 int svm_set_efer(struct kvm_vcpu *vcpu, u64 efer); 547 void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); 548 void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4); 549 void disable_nmi_singlestep(struct vcpu_svm *svm); 550 bool svm_smi_blocked(struct kvm_vcpu *vcpu); 551 bool svm_nmi_blocked(struct kvm_vcpu *vcpu); 552 bool svm_interrupt_blocked(struct kvm_vcpu *vcpu); 553 void svm_set_gif(struct vcpu_svm *svm, bool value); 554 int svm_invoke_exit_handler(struct kvm_vcpu *vcpu, u64 exit_code); 555 void set_msr_interception(struct kvm_vcpu *vcpu, u32 *msrpm, u32 msr, 556 int read, int write); 557 void svm_set_x2apic_msr_interception(struct vcpu_svm *svm, bool disable); 558 void svm_complete_interrupt_delivery(struct kvm_vcpu *vcpu, int delivery_mode, 559 int trig_mode, int vec); 560 561 /* nested.c */ 562 563 #define NESTED_EXIT_HOST 0 /* Exit handled on host level */ 564 #define NESTED_EXIT_DONE 1 /* Exit caused nested vmexit */ 565 #define NESTED_EXIT_CONTINUE 2 /* Further checks needed */ 566 567 static inline bool nested_svm_virtualize_tpr(struct kvm_vcpu *vcpu) 568 { 569 struct vcpu_svm *svm = to_svm(vcpu); 570 571 return is_guest_mode(vcpu) && (svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK); 572 } 573 574 static inline bool nested_exit_on_smi(struct vcpu_svm *svm) 575 { 576 return vmcb12_is_intercept(&svm->nested.ctl, INTERCEPT_SMI); 577 } 578 579 static inline bool nested_exit_on_intr(struct vcpu_svm *svm) 580 { 581 return vmcb12_is_intercept(&svm->nested.ctl, INTERCEPT_INTR); 582 } 583 584 static inline bool nested_exit_on_nmi(struct vcpu_svm *svm) 585 { 586 return vmcb12_is_intercept(&svm->nested.ctl, INTERCEPT_NMI); 587 } 588 589 int enter_svm_guest_mode(struct kvm_vcpu *vcpu, 590 u64 vmcb_gpa, struct vmcb *vmcb12, bool from_vmrun); 591 void svm_leave_nested(struct kvm_vcpu *vcpu); 592 void svm_free_nested(struct vcpu_svm *svm); 593 int svm_allocate_nested(struct vcpu_svm *svm); 594 int nested_svm_vmrun(struct kvm_vcpu *vcpu); 595 void svm_copy_vmrun_state(struct vmcb_save_area *to_save, 596 struct vmcb_save_area *from_save); 597 void svm_copy_vmloadsave_state(struct vmcb *to_vmcb, struct vmcb *from_vmcb); 598 int nested_svm_vmexit(struct vcpu_svm *svm); 599 600 static inline int nested_svm_simple_vmexit(struct vcpu_svm *svm, u32 exit_code) 601 { 602 svm->vmcb->control.exit_code = exit_code; 603 svm->vmcb->control.exit_info_1 = 0; 604 svm->vmcb->control.exit_info_2 = 0; 605 return nested_svm_vmexit(svm); 606 } 607 608 int nested_svm_exit_handled(struct vcpu_svm *svm); 609 int nested_svm_check_permissions(struct kvm_vcpu *vcpu); 610 int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr, 611 bool has_error_code, u32 error_code); 612 int nested_svm_exit_special(struct vcpu_svm *svm); 613 void nested_svm_update_tsc_ratio_msr(struct kvm_vcpu *vcpu); 614 void svm_write_tsc_multiplier(struct kvm_vcpu *vcpu); 615 void nested_copy_vmcb_control_to_cache(struct vcpu_svm *svm, 616 struct vmcb_control_area *control); 617 void nested_copy_vmcb_save_to_cache(struct vcpu_svm *svm, 618 struct vmcb_save_area *save); 619 void nested_sync_control_from_vmcb02(struct vcpu_svm *svm); 620 void nested_vmcb02_compute_g_pat(struct vcpu_svm *svm); 621 void svm_switch_vmcb(struct vcpu_svm *svm, struct kvm_vmcb_info *target_vmcb); 622 623 extern struct kvm_x86_nested_ops svm_nested_ops; 624 625 /* avic.c */ 626 #define AVIC_REQUIRED_APICV_INHIBITS \ 627 ( \ 628 BIT(APICV_INHIBIT_REASON_DISABLE) | \ 629 BIT(APICV_INHIBIT_REASON_ABSENT) | \ 630 BIT(APICV_INHIBIT_REASON_HYPERV) | \ 631 BIT(APICV_INHIBIT_REASON_NESTED) | \ 632 BIT(APICV_INHIBIT_REASON_IRQWIN) | \ 633 BIT(APICV_INHIBIT_REASON_PIT_REINJ) | \ 634 BIT(APICV_INHIBIT_REASON_BLOCKIRQ) | \ 635 BIT(APICV_INHIBIT_REASON_SEV) | \ 636 BIT(APICV_INHIBIT_REASON_PHYSICAL_ID_ALIASED) | \ 637 BIT(APICV_INHIBIT_REASON_APIC_ID_MODIFIED) | \ 638 BIT(APICV_INHIBIT_REASON_APIC_BASE_MODIFIED) | \ 639 BIT(APICV_INHIBIT_REASON_LOGICAL_ID_ALIASED) \ 640 ) 641 642 bool avic_hardware_setup(void); 643 int avic_ga_log_notifier(u32 ga_tag); 644 void avic_vm_destroy(struct kvm *kvm); 645 int avic_vm_init(struct kvm *kvm); 646 void avic_init_vmcb(struct vcpu_svm *svm, struct vmcb *vmcb); 647 int avic_incomplete_ipi_interception(struct kvm_vcpu *vcpu); 648 int avic_unaccelerated_access_interception(struct kvm_vcpu *vcpu); 649 int avic_init_vcpu(struct vcpu_svm *svm); 650 void avic_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 651 void avic_vcpu_put(struct kvm_vcpu *vcpu); 652 void avic_apicv_post_state_restore(struct kvm_vcpu *vcpu); 653 void avic_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu); 654 int avic_pi_update_irte(struct kvm *kvm, unsigned int host_irq, 655 uint32_t guest_irq, bool set); 656 void avic_vcpu_blocking(struct kvm_vcpu *vcpu); 657 void avic_vcpu_unblocking(struct kvm_vcpu *vcpu); 658 void avic_ring_doorbell(struct kvm_vcpu *vcpu); 659 unsigned long avic_vcpu_get_apicv_inhibit_reasons(struct kvm_vcpu *vcpu); 660 void avic_refresh_virtual_apic_mode(struct kvm_vcpu *vcpu); 661 662 663 /* sev.c */ 664 665 #define GHCB_VERSION_MAX 1ULL 666 #define GHCB_VERSION_MIN 1ULL 667 668 669 extern unsigned int max_sev_asid; 670 671 void sev_vm_destroy(struct kvm *kvm); 672 int sev_mem_enc_ioctl(struct kvm *kvm, void __user *argp); 673 int sev_mem_enc_register_region(struct kvm *kvm, 674 struct kvm_enc_region *range); 675 int sev_mem_enc_unregister_region(struct kvm *kvm, 676 struct kvm_enc_region *range); 677 int sev_vm_copy_enc_context_from(struct kvm *kvm, unsigned int source_fd); 678 int sev_vm_move_enc_context_from(struct kvm *kvm, unsigned int source_fd); 679 void sev_guest_memory_reclaimed(struct kvm *kvm); 680 681 void pre_sev_run(struct vcpu_svm *svm, int cpu); 682 void __init sev_set_cpu_caps(void); 683 void __init sev_hardware_setup(void); 684 void sev_hardware_unsetup(void); 685 int sev_cpu_init(struct svm_cpu_data *sd); 686 void sev_init_vmcb(struct vcpu_svm *svm); 687 void sev_vcpu_after_set_cpuid(struct vcpu_svm *svm); 688 void sev_free_vcpu(struct kvm_vcpu *vcpu); 689 int sev_handle_vmgexit(struct kvm_vcpu *vcpu); 690 int sev_es_string_io(struct vcpu_svm *svm, int size, unsigned int port, int in); 691 void sev_es_vcpu_reset(struct vcpu_svm *svm); 692 void sev_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector); 693 void sev_es_prepare_switch_to_guest(struct sev_es_save_area *hostsa); 694 void sev_es_unmap_ghcb(struct vcpu_svm *svm); 695 696 /* vmenter.S */ 697 698 void __svm_sev_es_vcpu_run(struct vcpu_svm *svm, bool spec_ctrl_intercepted); 699 void __svm_vcpu_run(struct vcpu_svm *svm, bool spec_ctrl_intercepted); 700 701 #define DEFINE_KVM_GHCB_ACCESSORS(field) \ 702 static __always_inline bool kvm_ghcb_##field##_is_valid(const struct vcpu_svm *svm) \ 703 { \ 704 return test_bit(GHCB_BITMAP_IDX(field), \ 705 (unsigned long *)&svm->sev_es.valid_bitmap); \ 706 } \ 707 \ 708 static __always_inline u64 kvm_ghcb_get_##field##_if_valid(struct vcpu_svm *svm, struct ghcb *ghcb) \ 709 { \ 710 return kvm_ghcb_##field##_is_valid(svm) ? ghcb->save.field : 0; \ 711 } \ 712 713 DEFINE_KVM_GHCB_ACCESSORS(cpl) 714 DEFINE_KVM_GHCB_ACCESSORS(rax) 715 DEFINE_KVM_GHCB_ACCESSORS(rcx) 716 DEFINE_KVM_GHCB_ACCESSORS(rdx) 717 DEFINE_KVM_GHCB_ACCESSORS(rbx) 718 DEFINE_KVM_GHCB_ACCESSORS(rsi) 719 DEFINE_KVM_GHCB_ACCESSORS(sw_exit_code) 720 DEFINE_KVM_GHCB_ACCESSORS(sw_exit_info_1) 721 DEFINE_KVM_GHCB_ACCESSORS(sw_exit_info_2) 722 DEFINE_KVM_GHCB_ACCESSORS(sw_scratch) 723 DEFINE_KVM_GHCB_ACCESSORS(xcr0) 724 725 #endif 726