xref: /openbmc/linux/arch/x86/kvm/svm/svm.h (revision 76a4f7cc)
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
32 extern u32 msrpm_offsets[MSRPM_OFFSETS] __read_mostly;
33 extern bool npt_enabled;
34 extern 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  */
41 enum {
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 
72 struct 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 
85 struct 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 
97 struct kvm_vcpu;
98 
99 struct kvm_vmcb_info {
100 	struct vmcb *ptr;
101 	unsigned long pa;
102 	int cpu;
103 	uint64_t asid_generation;
104 };
105 
106 struct 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 
126 struct 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 	u64 ghcb_sa_len;
195 	bool ghcb_sa_sync;
196 	bool ghcb_sa_free;
197 
198 	bool guest_state_loaded;
199 };
200 
201 struct 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 
217 DECLARE_PER_CPU(struct svm_cpu_data *, svm_data);
218 
219 void recalc_intercepts(struct vcpu_svm *svm);
220 
221 static inline struct kvm_svm *to_kvm_svm(struct kvm *kvm)
222 {
223 	return container_of(kvm, struct kvm_svm, kvm);
224 }
225 
226 static 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 
237 static 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 
248 static inline void vmcb_mark_all_dirty(struct vmcb *vmcb)
249 {
250 	vmcb->control.clean = 0;
251 }
252 
253 static 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 
259 static inline bool vmcb_is_clean(struct vmcb *vmcb, int bit)
260 {
261 	return (vmcb->control.clean & (1 << bit));
262 }
263 
264 static inline void vmcb_mark_dirty(struct vmcb *vmcb, int bit)
265 {
266 	vmcb->control.clean &= ~(1 << bit);
267 }
268 
269 static inline bool vmcb_is_dirty(struct vmcb *vmcb, int bit)
270 {
271         return !test_bit(bit, (unsigned long *)&vmcb->control.clean);
272 }
273 
274 static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
275 {
276 	return container_of(vcpu, struct vcpu_svm, vcpu);
277 }
278 
279 static 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 
285 static 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 
291 static 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 
297 static 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 
324 static 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 
339 static 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 
349 static 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 
359 static 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 
368 static 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 
377 static inline bool svm_is_intercept(struct vcpu_svm *svm, int bit)
378 {
379 	return vmcb_is_intercept(&svm->vmcb->control, bit);
380 }
381 
382 static inline bool vgif_enabled(struct vcpu_svm *svm)
383 {
384 	return !!(svm->vmcb->control.int_ctl & V_GIF_ENABLE_MASK);
385 }
386 
387 static 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 
395 static 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 
403 static 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 
414 extern bool dump_invalid_vmcb;
415 
416 u32 svm_msrpm_offset(u32 msr);
417 u32 *svm_vcpu_alloc_msrpm(void);
418 void svm_vcpu_init_msrpm(struct kvm_vcpu *vcpu, u32 *msrpm);
419 void svm_vcpu_free_msrpm(u32 *msrpm);
420 
421 int svm_set_efer(struct kvm_vcpu *vcpu, u64 efer);
422 void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
423 void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
424 void svm_flush_tlb(struct kvm_vcpu *vcpu);
425 void disable_nmi_singlestep(struct vcpu_svm *svm);
426 bool svm_smi_blocked(struct kvm_vcpu *vcpu);
427 bool svm_nmi_blocked(struct kvm_vcpu *vcpu);
428 bool svm_interrupt_blocked(struct kvm_vcpu *vcpu);
429 void svm_set_gif(struct vcpu_svm *svm, bool value);
430 int svm_invoke_exit_handler(struct kvm_vcpu *vcpu, u64 exit_code);
431 void 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 
440 static 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 
447 static inline bool nested_exit_on_smi(struct vcpu_svm *svm)
448 {
449 	return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_SMI);
450 }
451 
452 static inline bool nested_exit_on_intr(struct vcpu_svm *svm)
453 {
454 	return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_INTR);
455 }
456 
457 static inline bool nested_exit_on_nmi(struct vcpu_svm *svm)
458 {
459 	return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_NMI);
460 }
461 
462 int enter_svm_guest_mode(struct kvm_vcpu *vcpu, u64 vmcb_gpa, struct vmcb *vmcb12);
463 void svm_leave_nested(struct vcpu_svm *svm);
464 void svm_free_nested(struct vcpu_svm *svm);
465 int svm_allocate_nested(struct vcpu_svm *svm);
466 int nested_svm_vmrun(struct kvm_vcpu *vcpu);
467 void svm_copy_vmrun_state(struct vmcb_save_area *to_save,
468 			  struct vmcb_save_area *from_save);
469 void svm_copy_vmloadsave_state(struct vmcb *to_vmcb, struct vmcb *from_vmcb);
470 int nested_svm_vmexit(struct vcpu_svm *svm);
471 
472 static inline int nested_svm_simple_vmexit(struct vcpu_svm *svm, u32 exit_code)
473 {
474 	svm->vmcb->control.exit_code   = exit_code;
475 	svm->vmcb->control.exit_info_1 = 0;
476 	svm->vmcb->control.exit_info_2 = 0;
477 	return nested_svm_vmexit(svm);
478 }
479 
480 int nested_svm_exit_handled(struct vcpu_svm *svm);
481 int nested_svm_check_permissions(struct kvm_vcpu *vcpu);
482 int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr,
483 			       bool has_error_code, u32 error_code);
484 int nested_svm_exit_special(struct vcpu_svm *svm);
485 void nested_load_control_from_vmcb12(struct vcpu_svm *svm,
486 				     struct vmcb_control_area *control);
487 void nested_sync_control_from_vmcb02(struct vcpu_svm *svm);
488 void nested_vmcb02_compute_g_pat(struct vcpu_svm *svm);
489 void svm_switch_vmcb(struct vcpu_svm *svm, struct kvm_vmcb_info *target_vmcb);
490 
491 extern struct kvm_x86_nested_ops svm_nested_ops;
492 
493 /* avic.c */
494 
495 #define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK	(0xFF)
496 #define AVIC_LOGICAL_ID_ENTRY_VALID_BIT			31
497 #define AVIC_LOGICAL_ID_ENTRY_VALID_MASK		(1 << 31)
498 
499 #define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK	(0xFFULL)
500 #define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK	(0xFFFFFFFFFFULL << 12)
501 #define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK		(1ULL << 62)
502 #define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK		(1ULL << 63)
503 
504 #define VMCB_AVIC_APIC_BAR_MASK		0xFFFFFFFFFF000ULL
505 
506 static inline bool avic_vcpu_is_running(struct kvm_vcpu *vcpu)
507 {
508 	struct vcpu_svm *svm = to_svm(vcpu);
509 	u64 *entry = svm->avic_physical_id_cache;
510 
511 	if (!entry)
512 		return false;
513 
514 	return (READ_ONCE(*entry) & AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK);
515 }
516 
517 int avic_ga_log_notifier(u32 ga_tag);
518 void avic_vm_destroy(struct kvm *kvm);
519 int avic_vm_init(struct kvm *kvm);
520 void avic_init_vmcb(struct vcpu_svm *svm);
521 int avic_incomplete_ipi_interception(struct kvm_vcpu *vcpu);
522 int avic_unaccelerated_access_interception(struct kvm_vcpu *vcpu);
523 int avic_init_vcpu(struct vcpu_svm *svm);
524 void avic_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
525 void avic_vcpu_put(struct kvm_vcpu *vcpu);
526 void avic_post_state_restore(struct kvm_vcpu *vcpu);
527 void svm_set_virtual_apic_mode(struct kvm_vcpu *vcpu);
528 void svm_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu);
529 bool svm_check_apicv_inhibit_reasons(ulong bit);
530 void svm_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
531 void svm_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr);
532 void svm_hwapic_isr_update(struct kvm_vcpu *vcpu, int max_isr);
533 int svm_deliver_avic_intr(struct kvm_vcpu *vcpu, int vec);
534 bool svm_dy_apicv_has_pending_interrupt(struct kvm_vcpu *vcpu);
535 int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
536 		       uint32_t guest_irq, bool set);
537 void svm_vcpu_blocking(struct kvm_vcpu *vcpu);
538 void svm_vcpu_unblocking(struct kvm_vcpu *vcpu);
539 
540 /* sev.c */
541 
542 #define GHCB_VERSION_MAX	1ULL
543 #define GHCB_VERSION_MIN	1ULL
544 
545 
546 extern unsigned int max_sev_asid;
547 
548 void sev_vm_destroy(struct kvm *kvm);
549 int svm_mem_enc_op(struct kvm *kvm, void __user *argp);
550 int svm_register_enc_region(struct kvm *kvm,
551 			    struct kvm_enc_region *range);
552 int svm_unregister_enc_region(struct kvm *kvm,
553 			      struct kvm_enc_region *range);
554 int svm_vm_copy_asid_from(struct kvm *kvm, unsigned int source_fd);
555 void pre_sev_run(struct vcpu_svm *svm, int cpu);
556 void __init sev_set_cpu_caps(void);
557 void __init sev_hardware_setup(void);
558 void sev_hardware_teardown(void);
559 int sev_cpu_init(struct svm_cpu_data *sd);
560 void sev_free_vcpu(struct kvm_vcpu *vcpu);
561 int sev_handle_vmgexit(struct kvm_vcpu *vcpu);
562 int sev_es_string_io(struct vcpu_svm *svm, int size, unsigned int port, int in);
563 void sev_es_init_vmcb(struct vcpu_svm *svm);
564 void sev_es_create_vcpu(struct vcpu_svm *svm);
565 void sev_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
566 void sev_es_prepare_guest_switch(struct vcpu_svm *svm, unsigned int cpu);
567 void sev_es_unmap_ghcb(struct vcpu_svm *svm);
568 
569 /* vmenter.S */
570 
571 void __svm_sev_es_vcpu_run(unsigned long vmcb_pa);
572 void __svm_vcpu_run(unsigned long vmcb_pa, unsigned long *regs);
573 
574 #endif
575