LXR linux/arch/x86/kvm/svm/svm.h

   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#define __sme_page_pa(x) __sme_set(page_to_pfn(x) << PAGE_SHIFT)
  26
  27#define IOPM_SIZE PAGE_SIZE * 3
  28#define MSRPM_SIZE PAGE_SIZE * 2
  29
  30#define MAX_DIRECT_ACCESS_MSRS  20
  31#define MSRPM_OFFSETS   16
  32extern u32 msrpm_offsets[MSRPM_OFFSETS] __read_mostly;
  33extern bool npt_enabled;
  34extern bool intercept_smi;
  35
  36/*
  37 * Clean bits in VMCB.
  38 * VMCB_ALL_CLEAN_MASK might also need to
  39 * be updated if this enum is modified.
  40 */
  41enum {
  42        VMCB_INTERCEPTS, /* Intercept vectors, TSC offset,
  43                            pause filter count */
  44        VMCB_PERM_MAP,   /* IOPM Base and MSRPM Base */
  45        VMCB_ASID,       /* ASID */
  46        VMCB_INTR,       /* int_ctl, int_vector */
  47        VMCB_NPT,        /* npt_en, nCR3, gPAT */
  48        VMCB_CR,         /* CR0, CR3, CR4, EFER */
  49        VMCB_DR,         /* DR6, DR7 */
  50        VMCB_DT,         /* GDT, IDT */
  51        VMCB_SEG,        /* CS, DS, SS, ES, CPL */
  52        VMCB_CR2,        /* CR2 only */
  53        VMCB_LBR,        /* DBGCTL, BR_FROM, BR_TO, LAST_EX_FROM, LAST_EX_TO */
  54        VMCB_AVIC,       /* AVIC APIC_BAR, AVIC APIC_BACKING_PAGE,
  55                          * AVIC PHYSICAL_TABLE pointer,
  56                          * AVIC LOGICAL_TABLE pointer
  57                          */
  58        VMCB_SW = 31,    /* Reserved for hypervisor/software use */
  59};
  60
  61#define VMCB_ALL_CLEAN_MASK (                                   \
  62        (1U << VMCB_INTERCEPTS) | (1U << VMCB_PERM_MAP) |       \
  63        (1U << VMCB_ASID) | (1U << VMCB_INTR) |                 \
  64        (1U << VMCB_NPT) | (1U << VMCB_CR) | (1U << VMCB_DR) |  \
  65        (1U << VMCB_DT) | (1U << VMCB_SEG) | (1U << VMCB_CR2) | \
  66        (1U << VMCB_LBR) | (1U << VMCB_AVIC) |                  \
  67        (1U << VMCB_SW))
  68
  69/* TPR and CR2 are always written before VMRUN */
  70#define VMCB_ALWAYS_DIRTY_MASK  ((1U << VMCB_INTR) | (1U << VMCB_CR2))
  71
  72struct kvm_sev_info {
  73        bool active;            /* SEV enabled guest */
  74        bool es_active;         /* SEV-ES enabled guest */
  75        unsigned int asid;      /* ASID used for this guest */
  76        unsigned int handle;    /* SEV firmware handle */
  77        int fd;                 /* SEV device fd */
  78        unsigned long pages_locked; /* Number of pages locked */
  79        struct list_head regions_list;  /* List of registered regions */
  80        u64 ap_jump_table;      /* SEV-ES AP Jump Table address */
  81        struct kvm *enc_context_owner; /* Owner of copied encryption context */
  82        struct misc_cg *misc_cg; /* For misc cgroup accounting */
  83};
  84
  85struct kvm_svm {
  86        struct kvm kvm;
  87
  88        /* Struct members for AVIC */
  89        u32 avic_vm_id;
  90        struct page *avic_logical_id_table_page;
  91        struct page *avic_physical_id_table_page;
  92        struct hlist_node hnode;
  93
  94        struct kvm_sev_info sev_info;
  95};
  96
  97struct kvm_vcpu;
  98
  99struct kvm_vmcb_info {
 100        struct vmcb *ptr;
 101        unsigned long pa;
 102        int cpu;
 103        uint64_t asid_generation;
 104};
 105
 106struct svm_nested_state {
 107        struct kvm_vmcb_info vmcb02;
 108        u64 hsave_msr;
 109        u64 vm_cr_msr;
 110        u64 vmcb12_gpa;
 111        u64 last_vmcb12_gpa;
 112
 113        /* These are the merged vectors */
 114        u32 *msrpm;
 115
 116        /* A VMRUN has started but has not yet been performed, so
 117         * we cannot inject a nested vmexit yet.  */
 118        bool nested_run_pending;
 119
 120        /* cache for control fields of the guest */
 121        struct vmcb_control_area ctl;
 122
 123        bool initialized;
 124};
 125
 126struct vcpu_svm {
 127        struct kvm_vcpu vcpu;
 128        /* vmcb always points at current_vmcb->ptr, it's purely a shorthand. */
 129        struct vmcb *vmcb;
 130        struct kvm_vmcb_info vmcb01;
 131        struct kvm_vmcb_info *current_vmcb;
 132        struct svm_cpu_data *svm_data;
 133        u32 asid;
 134        u32 sysenter_esp_hi;
 135        u32 sysenter_eip_hi;
 136        uint64_t tsc_aux;
 137
 138        u64 msr_decfg;
 139
 140        u64 next_rip;
 141
 142        u64 spec_ctrl;
 143        /*
 144         * Contains guest-controlled bits of VIRT_SPEC_CTRL, which will be
 145         * translated into the appropriate L2_CFG bits on the host to
 146         * perform speculative control.
 147         */
 148        u64 virt_spec_ctrl;
 149
 150        u32 *msrpm;
 151
 152        ulong nmi_iret_rip;
 153
 154        struct svm_nested_state nested;
 155
 156        bool nmi_singlestep;
 157        u64 nmi_singlestep_guest_rflags;
 158
 159        unsigned int3_injected;
 160        unsigned long int3_rip;
 161
 162        /* cached guest cpuid flags for faster access */
 163        bool nrips_enabled      : 1;
 164
 165        u32 ldr_reg;
 166        u32 dfr_reg;
 167        struct page *avic_backing_page;
 168        u64 *avic_physical_id_cache;
 169        bool avic_is_running;
 170
 171        /*
 172         * Per-vcpu list of struct amd_svm_iommu_ir:
 173         * This is used mainly to store interrupt remapping information used
 174         * when update the vcpu affinity. This avoids the need to scan for
 175         * IRTE and try to match ga_tag in the IOMMU driver.
 176         */
 177        struct list_head ir_list;
 178        spinlock_t ir_list_lock;
 179
 180        /* Save desired MSR intercept (read: pass-through) state */
 181        struct {
 182                DECLARE_BITMAP(read, MAX_DIRECT_ACCESS_MSRS);
 183                DECLARE_BITMAP(write, MAX_DIRECT_ACCESS_MSRS);
 184        } shadow_msr_intercept;
 185
 186        /* SEV-ES support */
 187        struct vmcb_save_area *vmsa;
 188        struct ghcb *ghcb;
 189        struct kvm_host_map ghcb_map;
 190        bool received_first_sipi;
 191
 192        /* SEV-ES scratch area support */
 193        void *ghcb_sa;
 194        u32 ghcb_sa_len;
 195        bool ghcb_sa_sync;
 196        bool ghcb_sa_free;
 197
 198        bool guest_state_loaded;
 199};
 200
 201struct svm_cpu_data {
 202        int cpu;
 203
 204        u64 asid_generation;
 205        u32 max_asid;
 206        u32 next_asid;
 207        u32 min_asid;
 208        struct kvm_ldttss_desc *tss_desc;
 209
 210        struct page *save_area;
 211        struct vmcb *current_vmcb;
 212
 213        /* index = sev_asid, value = vmcb pointer */
 214        struct vmcb **sev_vmcbs;
 215};
 216
 217DECLARE_PER_CPU(struct svm_cpu_data *, svm_data);
 218
 219void recalc_intercepts(struct vcpu_svm *svm);
 220
 221static inline struct kvm_svm *to_kvm_svm(struct kvm *kvm)
 222{
 223        return container_of(kvm, struct kvm_svm, kvm);
 224}
 225
 226static inline bool sev_guest(struct kvm *kvm)
 227{
 228#ifdef CONFIG_KVM_AMD_SEV
 229        struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 230
 231        return sev->active;
 232#else
 233        return false;
 234#endif
 235}
 236
 237static inline bool sev_es_guest(struct kvm *kvm)
 238{
 239#ifdef CONFIG_KVM_AMD_SEV
 240        struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
 241
 242        return sev_guest(kvm) && sev->es_active;
 243#else
 244        return false;
 245#endif
 246}
 247
 248static inline void vmcb_mark_all_dirty(struct vmcb *vmcb)
 249{
 250        vmcb->control.clean = 0;
 251}
 252
 253static inline void vmcb_mark_all_clean(struct vmcb *vmcb)
 254{
 255        vmcb->control.clean = VMCB_ALL_CLEAN_MASK
 256                               & ~VMCB_ALWAYS_DIRTY_MASK;
 257}
 258
 259static inline bool vmcb_is_clean(struct vmcb *vmcb, int bit)
 260{
 261        return (vmcb->control.clean & (1 << bit));
 262}
 263
 264static inline void vmcb_mark_dirty(struct vmcb *vmcb, int bit)
 265{
 266        vmcb->control.clean &= ~(1 << bit);
 267}
 268
 269static inline bool vmcb_is_dirty(struct vmcb *vmcb, int bit)
 270{
 271        return !test_bit(bit, (unsigned long *)&vmcb->control.clean);
 272}
 273
 274static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
 275{
 276        return container_of(vcpu, struct vcpu_svm, vcpu);
 277}
 278
 279static inline void vmcb_set_intercept(struct vmcb_control_area *control, u32 bit)
 280{
 281        WARN_ON_ONCE(bit >= 32 * MAX_INTERCEPT);
 282        __set_bit(bit, (unsigned long *)&control->intercepts);
 283}
 284
 285static inline void vmcb_clr_intercept(struct vmcb_control_area *control, u32 bit)
 286{
 287        WARN_ON_ONCE(bit >= 32 * MAX_INTERCEPT);
 288        __clear_bit(bit, (unsigned long *)&control->intercepts);
 289}
 290
 291static inline bool vmcb_is_intercept(struct vmcb_control_area *control, u32 bit)
 292{
 293        WARN_ON_ONCE(bit >= 32 * MAX_INTERCEPT);
 294        return test_bit(bit, (unsigned long *)&control->intercepts);
 295}
 296
 297static inline void set_dr_intercepts(struct vcpu_svm *svm)
 298{
 299        struct vmcb *vmcb = svm->vmcb01.ptr;
 300
 301        if (!sev_es_guest(svm->vcpu.kvm)) {
 302                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR0_READ);
 303                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR1_READ);
 304                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR2_READ);
 305                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR3_READ);
 306                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR4_READ);
 307                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR5_READ);
 308                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR6_READ);
 309                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR0_WRITE);
 310                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR1_WRITE);
 311                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR2_WRITE);
 312                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR3_WRITE);
 313                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR4_WRITE);
 314                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR5_WRITE);
 315                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR6_WRITE);
 316        }
 317
 318        vmcb_set_intercept(&vmcb->control, INTERCEPT_DR7_READ);
 319        vmcb_set_intercept(&vmcb->control, INTERCEPT_DR7_WRITE);
 320
 321        recalc_intercepts(svm);
 322}
 323
 324static inline void clr_dr_intercepts(struct vcpu_svm *svm)
 325{
 326        struct vmcb *vmcb = svm->vmcb01.ptr;
 327
 328        vmcb->control.intercepts[INTERCEPT_DR] = 0;
 329
 330        /* DR7 access must remain intercepted for an SEV-ES guest */
 331        if (sev_es_guest(svm->vcpu.kvm)) {
 332                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR7_READ);
 333                vmcb_set_intercept(&vmcb->control, INTERCEPT_DR7_WRITE);
 334        }
 335
 336        recalc_intercepts(svm);
 337}
 338
 339static inline void set_exception_intercept(struct vcpu_svm *svm, u32 bit)
 340{
 341        struct vmcb *vmcb = svm->vmcb01.ptr;
 342
 343        WARN_ON_ONCE(bit >= 32);
 344        vmcb_set_intercept(&vmcb->control, INTERCEPT_EXCEPTION_OFFSET + bit);
 345
 346        recalc_intercepts(svm);
 347}
 348
 349static inline void clr_exception_intercept(struct vcpu_svm *svm, u32 bit)
 350{
 351        struct vmcb *vmcb = svm->vmcb01.ptr;
 352
 353        WARN_ON_ONCE(bit >= 32);
 354        vmcb_clr_intercept(&vmcb->control, INTERCEPT_EXCEPTION_OFFSET + bit);
 355
 356        recalc_intercepts(svm);
 357}
 358
 359static inline void svm_set_intercept(struct vcpu_svm *svm, int bit)
 360{
 361        struct vmcb *vmcb = svm->vmcb01.ptr;
 362
 363        vmcb_set_intercept(&vmcb->control, bit);
 364
 365        recalc_intercepts(svm);
 366}
 367
 368static inline void svm_clr_intercept(struct vcpu_svm *svm, int bit)
 369{
 370        struct vmcb *vmcb = svm->vmcb01.ptr;
 371
 372        vmcb_clr_intercept(&vmcb->control, bit);
 373
 374        recalc_intercepts(svm);
 375}
 376
 377static inline bool svm_is_intercept(struct vcpu_svm *svm, int bit)
 378{
 379        return vmcb_is_intercept(&svm->vmcb->control, bit);
 380}
 381
 382static inline bool vgif_enabled(struct vcpu_svm *svm)
 383{
 384        return !!(svm->vmcb->control.int_ctl & V_GIF_ENABLE_MASK);
 385}
 386
 387static inline void enable_gif(struct vcpu_svm *svm)
 388{
 389        if (vgif_enabled(svm))
 390                svm->vmcb->control.int_ctl |= V_GIF_MASK;
 391        else
 392                svm->vcpu.arch.hflags |= HF_GIF_MASK;
 393}
 394
 395static inline void disable_gif(struct vcpu_svm *svm)
 396{
 397        if (vgif_enabled(svm))
 398                svm->vmcb->control.int_ctl &= ~V_GIF_MASK;
 399        else
 400                svm->vcpu.arch.hflags &= ~HF_GIF_MASK;
 401}
 402
 403static inline bool gif_set(struct vcpu_svm *svm)
 404{
 405        if (vgif_enabled(svm))
 406                return !!(svm->vmcb->control.int_ctl & V_GIF_MASK);
 407        else
 408                return !!(svm->vcpu.arch.hflags & HF_GIF_MASK);
 409}
 410
 411/* svm.c */
 412#define MSR_INVALID                             0xffffffffU
 413
 414extern bool dump_invalid_vmcb;
 415
 416u32 svm_msrpm_offset(u32 msr);
 417u32 *svm_vcpu_alloc_msrpm(void);
 418void svm_vcpu_init_msrpm(struct kvm_vcpu *vcpu, u32 *msrpm);
 419void svm_vcpu_free_msrpm(u32 *msrpm);
 420
 421int svm_set_efer(struct kvm_vcpu *vcpu, u64 efer);
 422void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
 423void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
 424void svm_flush_tlb(struct kvm_vcpu *vcpu);
 425void disable_nmi_singlestep(struct vcpu_svm *svm);
 426bool svm_smi_blocked(struct kvm_vcpu *vcpu);
 427bool svm_nmi_blocked(struct kvm_vcpu *vcpu);
 428bool svm_interrupt_blocked(struct kvm_vcpu *vcpu);
 429void svm_set_gif(struct vcpu_svm *svm, bool value);
 430int svm_invoke_exit_handler(struct kvm_vcpu *vcpu, u64 exit_code);
 431void set_msr_interception(struct kvm_vcpu *vcpu, u32 *msrpm, u32 msr,
 432                          int read, int write);
 433
 434/* nested.c */
 435
 436#define NESTED_EXIT_HOST        0       /* Exit handled on host level */
 437#define NESTED_EXIT_DONE        1       /* Exit caused nested vmexit  */
 438#define NESTED_EXIT_CONTINUE    2       /* Further checks needed      */
 439
 440static inline bool nested_svm_virtualize_tpr(struct kvm_vcpu *vcpu)
 441{
 442        struct vcpu_svm *svm = to_svm(vcpu);
 443
 444        return is_guest_mode(vcpu) && (svm->nested.ctl.int_ctl & V_INTR_MASKING_MASK);
 445}
 446
 447static inline bool nested_exit_on_smi(struct vcpu_svm *svm)
 448{
 449        return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_SMI);
 450}
 451
 452static inline bool nested_exit_on_intr(struct vcpu_svm *svm)
 453{
 454        return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_INTR);
 455}
 456
 457static inline bool nested_exit_on_nmi(struct vcpu_svm *svm)
 458{
 459        return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_NMI);
 460}
 461
 462int enter_svm_guest_mode(struct kvm_vcpu *vcpu,
 463                         u64 vmcb_gpa, struct vmcb *vmcb12, bool from_vmrun);
 464void svm_leave_nested(struct vcpu_svm *svm);
 465void svm_free_nested(struct vcpu_svm *svm);
 466int svm_allocate_nested(struct vcpu_svm *svm);
 467int nested_svm_vmrun(struct kvm_vcpu *vcpu);
 468void svm_copy_vmrun_state(struct vmcb_save_area *to_save,
 469                          struct vmcb_save_area *from_save);
 470void svm_copy_vmloadsave_state(struct vmcb *to_vmcb, struct vmcb *from_vmcb);
 471int nested_svm_vmexit(struct vcpu_svm *svm);
 472
 473static inline int nested_svm_simple_vmexit(struct vcpu_svm *svm, u32 exit_code)
 474{
 475        svm->vmcb->control.exit_code   = exit_code;
 476        svm->vmcb->control.exit_info_1 = 0;
 477        svm->vmcb->control.exit_info_2 = 0;
 478        return nested_svm_vmexit(svm);
 479}
 480
 481int nested_svm_exit_handled(struct vcpu_svm *svm);
 482int nested_svm_check_permissions(struct kvm_vcpu *vcpu);
 483int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr,
 484                               bool has_error_code, u32 error_code);
 485int nested_svm_exit_special(struct vcpu_svm *svm);
 486void nested_load_control_from_vmcb12(struct vcpu_svm *svm,
 487                                     struct vmcb_control_area *control);
 488void nested_sync_control_from_vmcb02(struct vcpu_svm *svm);
 489void nested_vmcb02_compute_g_pat(struct vcpu_svm *svm);
 490void svm_switch_vmcb(struct vcpu_svm *svm, struct kvm_vmcb_info *target_vmcb);
 491
 492extern struct kvm_x86_nested_ops svm_nested_ops;
 493
 494/* avic.c */
 495
 496#define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK    (0xFF)
 497#define AVIC_LOGICAL_ID_ENTRY_VALID_BIT                 31
 498#define AVIC_LOGICAL_ID_ENTRY_VALID_MASK                (1 << 31)
 499
 500#define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK    (0xFFULL)
 501#define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK        (0xFFFFFFFFFFULL << 12)
 502#define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK          (1ULL << 62)
 503#define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK               (1ULL << 63)
 504
 505#define VMCB_AVIC_APIC_BAR_MASK         0xFFFFFFFFFF000ULL
 506
 507static inline bool avic_vcpu_is_running(struct kvm_vcpu *vcpu)
 508{
 509        struct vcpu_svm *svm = to_svm(vcpu);
 510        u64 *entry = svm->avic_physical_id_cache;
 511
 512        if (!entry)
 513                return false;
 514
 515        return (READ_ONCE(*entry) & AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK);
 516}
 517
 518int avic_ga_log_notifier(u32 ga_tag);
 519void avic_vm_destroy(struct kvm *kvm);
 520int avic_vm_init(struct kvm *kvm);
 521void avic_init_vmcb(struct vcpu_svm *svm);
 522int avic_incomplete_ipi_interception(struct kvm_vcpu *vcpu);
 523int avic_unaccelerated_access_interception(struct kvm_vcpu *vcpu);
 524int avic_init_vcpu(struct vcpu_svm *svm);
 525void avic_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
 526void avic_vcpu_put(struct kvm_vcpu *vcpu);
 527void avic_post_state_restore(struct kvm_vcpu *vcpu);
 528void svm_set_virtual_apic_mode(struct kvm_vcpu *vcpu);
 529void svm_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu);
 530bool svm_check_apicv_inhibit_reasons(ulong bit);
 531void svm_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
 532void svm_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr);
 533void svm_hwapic_isr_update(struct kvm_vcpu *vcpu, int max_isr);
 534int svm_deliver_avic_intr(struct kvm_vcpu *vcpu, int vec);
 535bool svm_dy_apicv_has_pending_interrupt(struct kvm_vcpu *vcpu);
 536int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
 537                       uint32_t guest_irq, bool set);
 538void svm_vcpu_blocking(struct kvm_vcpu *vcpu);
 539void svm_vcpu_unblocking(struct kvm_vcpu *vcpu);
 540
 541/* sev.c */
 542
 543#define GHCB_VERSION_MAX        1ULL
 544#define GHCB_VERSION_MIN        1ULL
 545
 546
 547extern unsigned int max_sev_asid;
 548
 549void sev_vm_destroy(struct kvm *kvm);
 550int svm_mem_enc_op(struct kvm *kvm, void __user *argp);
 551int svm_register_enc_region(struct kvm *kvm,
 552                            struct kvm_enc_region *range);
 553int svm_unregister_enc_region(struct kvm *kvm,
 554                              struct kvm_enc_region *range);
 555int svm_vm_copy_asid_from(struct kvm *kvm, unsigned int source_fd);
 556void pre_sev_run(struct vcpu_svm *svm, int cpu);
 557void __init sev_set_cpu_caps(void);
 558void __init sev_hardware_setup(void);
 559void sev_hardware_teardown(void);
 560int sev_cpu_init(struct svm_cpu_data *sd);
 561void sev_free_vcpu(struct kvm_vcpu *vcpu);
 562int sev_handle_vmgexit(struct kvm_vcpu *vcpu);
 563int sev_es_string_io(struct vcpu_svm *svm, int size, unsigned int port, int in);
 564void sev_es_init_vmcb(struct vcpu_svm *svm);
 565void sev_es_create_vcpu(struct vcpu_svm *svm);
 566void sev_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
 567void sev_es_prepare_guest_switch(struct vcpu_svm *svm, unsigned int cpu);
 568void sev_es_unmap_ghcb(struct vcpu_svm *svm);
 569
 570/* vmenter.S */
 571
 572void __svm_sev_es_vcpu_run(unsigned long vmcb_pa);
 573void __svm_vcpu_run(unsigned long vmcb_pa, unsigned long *regs);
 574
 575#endif
 576