1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * definition for kvm on s390 4 * 5 * Copyright IBM Corp. 2008, 2020 6 * 7 * Author(s): Carsten Otte <cotte@de.ibm.com> 8 * Christian Borntraeger <borntraeger@de.ibm.com> 9 * Christian Ehrhardt <ehrhardt@de.ibm.com> 10 */ 11 12 #ifndef ARCH_S390_KVM_S390_H 13 #define ARCH_S390_KVM_S390_H 14 15 #include <linux/hrtimer.h> 16 #include <linux/kvm.h> 17 #include <linux/kvm_host.h> 18 #include <linux/lockdep.h> 19 #include <asm/facility.h> 20 #include <asm/processor.h> 21 #include <asm/sclp.h> 22 23 /* Transactional Memory Execution related macros */ 24 #define IS_TE_ENABLED(vcpu) ((vcpu->arch.sie_block->ecb & ECB_TE)) 25 #define TDB_FORMAT1 1 26 #define IS_ITDB_VALID(vcpu) \ 27 ((*(char *)phys_to_virt((vcpu)->arch.sie_block->itdba) == TDB_FORMAT1)) 28 29 extern debug_info_t *kvm_s390_dbf; 30 extern debug_info_t *kvm_s390_dbf_uv; 31 32 #define KVM_UV_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ 33 do { \ 34 debug_sprintf_event((d_kvm)->arch.dbf, d_loglevel, d_string "\n", \ 35 d_args); \ 36 debug_sprintf_event(kvm_s390_dbf_uv, d_loglevel, \ 37 "%d: " d_string "\n", (d_kvm)->userspace_pid, \ 38 d_args); \ 39 } while (0) 40 41 #define KVM_EVENT(d_loglevel, d_string, d_args...)\ 42 do { \ 43 debug_sprintf_event(kvm_s390_dbf, d_loglevel, d_string "\n", \ 44 d_args); \ 45 } while (0) 46 47 #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ 48 do { \ 49 debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ 50 d_args); \ 51 } while (0) 52 53 #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\ 54 do { \ 55 debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \ 56 "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \ 57 d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\ 58 d_args); \ 59 } while (0) 60 61 static inline void kvm_s390_set_cpuflags(struct kvm_vcpu *vcpu, u32 flags) 62 { 63 atomic_or(flags, &vcpu->arch.sie_block->cpuflags); 64 } 65 66 static inline void kvm_s390_clear_cpuflags(struct kvm_vcpu *vcpu, u32 flags) 67 { 68 atomic_andnot(flags, &vcpu->arch.sie_block->cpuflags); 69 } 70 71 static inline bool kvm_s390_test_cpuflags(struct kvm_vcpu *vcpu, u32 flags) 72 { 73 return (atomic_read(&vcpu->arch.sie_block->cpuflags) & flags) == flags; 74 } 75 76 static inline int is_vcpu_stopped(struct kvm_vcpu *vcpu) 77 { 78 return kvm_s390_test_cpuflags(vcpu, CPUSTAT_STOPPED); 79 } 80 81 static inline int is_vcpu_idle(struct kvm_vcpu *vcpu) 82 { 83 return test_bit(vcpu->vcpu_idx, vcpu->kvm->arch.idle_mask); 84 } 85 86 static inline int kvm_is_ucontrol(struct kvm *kvm) 87 { 88 #ifdef CONFIG_KVM_S390_UCONTROL 89 if (kvm->arch.gmap) 90 return 0; 91 return 1; 92 #else 93 return 0; 94 #endif 95 } 96 97 #define GUEST_PREFIX_SHIFT 13 98 static inline u32 kvm_s390_get_prefix(struct kvm_vcpu *vcpu) 99 { 100 return vcpu->arch.sie_block->prefix << GUEST_PREFIX_SHIFT; 101 } 102 103 static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix) 104 { 105 VCPU_EVENT(vcpu, 3, "set prefix of cpu %03u to 0x%x", vcpu->vcpu_id, 106 prefix); 107 vcpu->arch.sie_block->prefix = prefix >> GUEST_PREFIX_SHIFT; 108 kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu); 109 kvm_make_request(KVM_REQ_REFRESH_GUEST_PREFIX, vcpu); 110 } 111 112 static inline u64 kvm_s390_get_base_disp_s(struct kvm_vcpu *vcpu, u8 *ar) 113 { 114 u32 base2 = vcpu->arch.sie_block->ipb >> 28; 115 u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); 116 117 if (ar) 118 *ar = base2; 119 120 return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; 121 } 122 123 static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu, 124 u64 *address1, u64 *address2, 125 u8 *ar_b1, u8 *ar_b2) 126 { 127 u32 base1 = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28; 128 u32 disp1 = (vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16; 129 u32 base2 = (vcpu->arch.sie_block->ipb & 0xf000) >> 12; 130 u32 disp2 = vcpu->arch.sie_block->ipb & 0x0fff; 131 132 *address1 = (base1 ? vcpu->run->s.regs.gprs[base1] : 0) + disp1; 133 *address2 = (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; 134 135 if (ar_b1) 136 *ar_b1 = base1; 137 if (ar_b2) 138 *ar_b2 = base2; 139 } 140 141 static inline void kvm_s390_get_regs_rre(struct kvm_vcpu *vcpu, int *r1, int *r2) 142 { 143 if (r1) 144 *r1 = (vcpu->arch.sie_block->ipb & 0x00f00000) >> 20; 145 if (r2) 146 *r2 = (vcpu->arch.sie_block->ipb & 0x000f0000) >> 16; 147 } 148 149 static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu, u8 *ar) 150 { 151 u32 base2 = vcpu->arch.sie_block->ipb >> 28; 152 u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16) + 153 ((vcpu->arch.sie_block->ipb & 0xff00) << 4); 154 /* The displacement is a 20bit _SIGNED_ value */ 155 if (disp2 & 0x80000) 156 disp2+=0xfff00000; 157 158 if (ar) 159 *ar = base2; 160 161 return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + (long)(int)disp2; 162 } 163 164 static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu, u8 *ar) 165 { 166 u32 base2 = vcpu->arch.sie_block->ipb >> 28; 167 u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); 168 169 if (ar) 170 *ar = base2; 171 172 return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; 173 } 174 175 /* Set the condition code in the guest program status word */ 176 static inline void kvm_s390_set_psw_cc(struct kvm_vcpu *vcpu, unsigned long cc) 177 { 178 vcpu->arch.sie_block->gpsw.mask &= ~(3UL << 44); 179 vcpu->arch.sie_block->gpsw.mask |= cc << 44; 180 } 181 182 /* test availability of facility in a kvm instance */ 183 static inline int test_kvm_facility(struct kvm *kvm, unsigned long nr) 184 { 185 return __test_facility(nr, kvm->arch.model.fac_mask) && 186 __test_facility(nr, kvm->arch.model.fac_list); 187 } 188 189 static inline int set_kvm_facility(u64 *fac_list, unsigned long nr) 190 { 191 unsigned char *ptr; 192 193 if (nr >= MAX_FACILITY_BIT) 194 return -EINVAL; 195 ptr = (unsigned char *) fac_list + (nr >> 3); 196 *ptr |= (0x80UL >> (nr & 7)); 197 return 0; 198 } 199 200 static inline int test_kvm_cpu_feat(struct kvm *kvm, unsigned long nr) 201 { 202 WARN_ON_ONCE(nr >= KVM_S390_VM_CPU_FEAT_NR_BITS); 203 return test_bit_inv(nr, kvm->arch.cpu_feat); 204 } 205 206 /* are cpu states controlled by user space */ 207 static inline int kvm_s390_user_cpu_state_ctrl(struct kvm *kvm) 208 { 209 return kvm->arch.user_cpu_state_ctrl != 0; 210 } 211 212 static inline void kvm_s390_set_user_cpu_state_ctrl(struct kvm *kvm) 213 { 214 if (kvm->arch.user_cpu_state_ctrl) 215 return; 216 217 VM_EVENT(kvm, 3, "%s", "ENABLE: Userspace CPU state control"); 218 kvm->arch.user_cpu_state_ctrl = 1; 219 } 220 221 /* get the end gfn of the last (highest gfn) memslot */ 222 static inline unsigned long kvm_s390_get_gfn_end(struct kvm_memslots *slots) 223 { 224 struct rb_node *node; 225 struct kvm_memory_slot *ms; 226 227 if (WARN_ON(kvm_memslots_empty(slots))) 228 return 0; 229 230 node = rb_last(&slots->gfn_tree); 231 ms = container_of(node, struct kvm_memory_slot, gfn_node[slots->node_idx]); 232 return ms->base_gfn + ms->npages; 233 } 234 235 static inline u32 kvm_s390_get_gisa_desc(struct kvm *kvm) 236 { 237 u32 gd = virt_to_phys(kvm->arch.gisa_int.origin); 238 239 if (gd && sclp.has_gisaf) 240 gd |= GISA_FORMAT1; 241 return gd; 242 } 243 244 /* implemented in pv.c */ 245 int kvm_s390_pv_destroy_cpu(struct kvm_vcpu *vcpu, u16 *rc, u16 *rrc); 246 int kvm_s390_pv_create_cpu(struct kvm_vcpu *vcpu, u16 *rc, u16 *rrc); 247 int kvm_s390_pv_set_aside(struct kvm *kvm, u16 *rc, u16 *rrc); 248 int kvm_s390_pv_deinit_aside_vm(struct kvm *kvm, u16 *rc, u16 *rrc); 249 int kvm_s390_pv_deinit_cleanup_all(struct kvm *kvm, u16 *rc, u16 *rrc); 250 int kvm_s390_pv_deinit_vm(struct kvm *kvm, u16 *rc, u16 *rrc); 251 int kvm_s390_pv_init_vm(struct kvm *kvm, u16 *rc, u16 *rrc); 252 int kvm_s390_pv_set_sec_parms(struct kvm *kvm, void *hdr, u64 length, u16 *rc, 253 u16 *rrc); 254 int kvm_s390_pv_unpack(struct kvm *kvm, unsigned long addr, unsigned long size, 255 unsigned long tweak, u16 *rc, u16 *rrc); 256 int kvm_s390_pv_set_cpu_state(struct kvm_vcpu *vcpu, u8 state); 257 int kvm_s390_pv_dump_cpu(struct kvm_vcpu *vcpu, void *buff, u16 *rc, u16 *rrc); 258 int kvm_s390_pv_dump_stor_state(struct kvm *kvm, void __user *buff_user, 259 u64 *gaddr, u64 buff_user_len, u16 *rc, u16 *rrc); 260 int kvm_s390_pv_dump_complete(struct kvm *kvm, void __user *buff_user, 261 u16 *rc, u16 *rrc); 262 263 static inline u64 kvm_s390_pv_get_handle(struct kvm *kvm) 264 { 265 return kvm->arch.pv.handle; 266 } 267 268 static inline u64 kvm_s390_pv_cpu_get_handle(struct kvm_vcpu *vcpu) 269 { 270 return vcpu->arch.pv.handle; 271 } 272 273 static inline bool kvm_s390_pv_is_protected(struct kvm *kvm) 274 { 275 lockdep_assert_held(&kvm->lock); 276 return !!kvm_s390_pv_get_handle(kvm); 277 } 278 279 static inline bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu) 280 { 281 lockdep_assert_held(&vcpu->mutex); 282 return !!kvm_s390_pv_cpu_get_handle(vcpu); 283 } 284 285 /* implemented in interrupt.c */ 286 int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); 287 void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu); 288 enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); 289 int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); 290 void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu); 291 void kvm_s390_clear_float_irqs(struct kvm *kvm); 292 int __must_check kvm_s390_inject_vm(struct kvm *kvm, 293 struct kvm_s390_interrupt *s390int); 294 int __must_check kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, 295 struct kvm_s390_irq *irq); 296 static inline int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu, 297 struct kvm_s390_pgm_info *pgm_info) 298 { 299 struct kvm_s390_irq irq = { 300 .type = KVM_S390_PROGRAM_INT, 301 .u.pgm = *pgm_info, 302 }; 303 304 return kvm_s390_inject_vcpu(vcpu, &irq); 305 } 306 static inline int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code) 307 { 308 struct kvm_s390_irq irq = { 309 .type = KVM_S390_PROGRAM_INT, 310 .u.pgm.code = code, 311 }; 312 313 return kvm_s390_inject_vcpu(vcpu, &irq); 314 } 315 struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm, 316 u64 isc_mask, u32 schid); 317 int kvm_s390_reinject_io_int(struct kvm *kvm, 318 struct kvm_s390_interrupt_info *inti); 319 int kvm_s390_mask_adapter(struct kvm *kvm, unsigned int id, bool masked); 320 321 /* implemented in intercept.c */ 322 u8 kvm_s390_get_ilen(struct kvm_vcpu *vcpu); 323 int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); 324 static inline void kvm_s390_rewind_psw(struct kvm_vcpu *vcpu, int ilen) 325 { 326 struct kvm_s390_sie_block *sie_block = vcpu->arch.sie_block; 327 328 sie_block->gpsw.addr = __rewind_psw(sie_block->gpsw, ilen); 329 } 330 static inline void kvm_s390_forward_psw(struct kvm_vcpu *vcpu, int ilen) 331 { 332 kvm_s390_rewind_psw(vcpu, -ilen); 333 } 334 static inline void kvm_s390_retry_instr(struct kvm_vcpu *vcpu) 335 { 336 /* don't inject PER events if we re-execute the instruction */ 337 vcpu->arch.sie_block->icptstatus &= ~0x02; 338 kvm_s390_rewind_psw(vcpu, kvm_s390_get_ilen(vcpu)); 339 } 340 341 int handle_sthyi(struct kvm_vcpu *vcpu); 342 343 /* implemented in priv.c */ 344 int is_valid_psw(psw_t *psw); 345 int kvm_s390_handle_aa(struct kvm_vcpu *vcpu); 346 int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); 347 int kvm_s390_handle_e3(struct kvm_vcpu *vcpu); 348 int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); 349 int kvm_s390_handle_01(struct kvm_vcpu *vcpu); 350 int kvm_s390_handle_b9(struct kvm_vcpu *vcpu); 351 int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu); 352 int kvm_s390_handle_stctl(struct kvm_vcpu *vcpu); 353 int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu); 354 int kvm_s390_handle_eb(struct kvm_vcpu *vcpu); 355 int kvm_s390_skey_check_enable(struct kvm_vcpu *vcpu); 356 357 /* implemented in vsie.c */ 358 int kvm_s390_handle_vsie(struct kvm_vcpu *vcpu); 359 void kvm_s390_vsie_kick(struct kvm_vcpu *vcpu); 360 void kvm_s390_vsie_gmap_notifier(struct gmap *gmap, unsigned long start, 361 unsigned long end); 362 void kvm_s390_vsie_init(struct kvm *kvm); 363 void kvm_s390_vsie_destroy(struct kvm *kvm); 364 365 /* implemented in sigp.c */ 366 int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); 367 int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu); 368 369 /* implemented in kvm-s390.c */ 370 int kvm_s390_try_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod); 371 long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable); 372 int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr); 373 int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr); 374 int kvm_s390_vcpu_start(struct kvm_vcpu *vcpu); 375 int kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu); 376 void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu); 377 void kvm_s390_vcpu_unblock(struct kvm_vcpu *vcpu); 378 bool kvm_s390_vcpu_sie_inhibited(struct kvm_vcpu *vcpu); 379 void exit_sie(struct kvm_vcpu *vcpu); 380 void kvm_s390_sync_request(int req, struct kvm_vcpu *vcpu); 381 int kvm_s390_vcpu_setup_cmma(struct kvm_vcpu *vcpu); 382 void kvm_s390_vcpu_unsetup_cmma(struct kvm_vcpu *vcpu); 383 void kvm_s390_set_cpu_timer(struct kvm_vcpu *vcpu, __u64 cputm); 384 __u64 kvm_s390_get_cpu_timer(struct kvm_vcpu *vcpu); 385 int kvm_s390_cpus_from_pv(struct kvm *kvm, u16 *rc, u16 *rrc); 386 387 /* implemented in diag.c */ 388 int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); 389 390 static inline void kvm_s390_vcpu_block_all(struct kvm *kvm) 391 { 392 unsigned long i; 393 struct kvm_vcpu *vcpu; 394 395 WARN_ON(!mutex_is_locked(&kvm->lock)); 396 kvm_for_each_vcpu(i, vcpu, kvm) 397 kvm_s390_vcpu_block(vcpu); 398 } 399 400 static inline void kvm_s390_vcpu_unblock_all(struct kvm *kvm) 401 { 402 unsigned long i; 403 struct kvm_vcpu *vcpu; 404 405 kvm_for_each_vcpu(i, vcpu, kvm) 406 kvm_s390_vcpu_unblock(vcpu); 407 } 408 409 static inline u64 kvm_s390_get_tod_clock_fast(struct kvm *kvm) 410 { 411 u64 rc; 412 413 preempt_disable(); 414 rc = get_tod_clock_fast() + kvm->arch.epoch; 415 preempt_enable(); 416 return rc; 417 } 418 419 /** 420 * kvm_s390_inject_prog_cond - conditionally inject a program check 421 * @vcpu: virtual cpu 422 * @rc: original return/error code 423 * 424 * This function is supposed to be used after regular guest access functions 425 * failed, to conditionally inject a program check to a vcpu. The typical 426 * pattern would look like 427 * 428 * rc = write_guest(vcpu, addr, data, len); 429 * if (rc) 430 * return kvm_s390_inject_prog_cond(vcpu, rc); 431 * 432 * A negative return code from guest access functions implies an internal error 433 * like e.g. out of memory. In these cases no program check should be injected 434 * to the guest. 435 * A positive value implies that an exception happened while accessing a guest's 436 * memory. In this case all data belonging to the corresponding program check 437 * has been stored in vcpu->arch.pgm and can be injected with 438 * kvm_s390_inject_prog_irq(). 439 * 440 * Returns: - the original @rc value if @rc was negative (internal error) 441 * - zero if @rc was already zero 442 * - zero or error code from injecting if @rc was positive 443 * (program check injected to @vcpu) 444 */ 445 static inline int kvm_s390_inject_prog_cond(struct kvm_vcpu *vcpu, int rc) 446 { 447 if (rc <= 0) 448 return rc; 449 return kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm); 450 } 451 452 int s390int_to_s390irq(struct kvm_s390_interrupt *s390int, 453 struct kvm_s390_irq *s390irq); 454 455 /* implemented in interrupt.c */ 456 int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop); 457 int psw_extint_disabled(struct kvm_vcpu *vcpu); 458 void kvm_s390_destroy_adapters(struct kvm *kvm); 459 int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu); 460 extern struct kvm_device_ops kvm_flic_ops; 461 int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu); 462 int kvm_s390_is_restart_irq_pending(struct kvm_vcpu *vcpu); 463 void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu); 464 int kvm_s390_set_irq_state(struct kvm_vcpu *vcpu, 465 void __user *buf, int len); 466 int kvm_s390_get_irq_state(struct kvm_vcpu *vcpu, 467 __u8 __user *buf, int len); 468 void kvm_s390_gisa_init(struct kvm *kvm); 469 void kvm_s390_gisa_clear(struct kvm *kvm); 470 void kvm_s390_gisa_destroy(struct kvm *kvm); 471 void kvm_s390_gisa_disable(struct kvm *kvm); 472 void kvm_s390_gisa_enable(struct kvm *kvm); 473 int __init kvm_s390_gib_init(u8 nisc); 474 void kvm_s390_gib_destroy(void); 475 476 /* implemented in guestdbg.c */ 477 void kvm_s390_backup_guest_per_regs(struct kvm_vcpu *vcpu); 478 void kvm_s390_restore_guest_per_regs(struct kvm_vcpu *vcpu); 479 void kvm_s390_patch_guest_per_regs(struct kvm_vcpu *vcpu); 480 int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu, 481 struct kvm_guest_debug *dbg); 482 void kvm_s390_clear_bp_data(struct kvm_vcpu *vcpu); 483 void kvm_s390_prepare_debug_exit(struct kvm_vcpu *vcpu); 484 int kvm_s390_handle_per_ifetch_icpt(struct kvm_vcpu *vcpu); 485 int kvm_s390_handle_per_event(struct kvm_vcpu *vcpu); 486 487 /* support for Basic/Extended SCA handling */ 488 static inline union ipte_control *kvm_s390_get_ipte_control(struct kvm *kvm) 489 { 490 struct bsca_block *sca = kvm->arch.sca; /* SCA version doesn't matter */ 491 492 return &sca->ipte_control; 493 } 494 static inline int kvm_s390_use_sca_entries(void) 495 { 496 /* 497 * Without SIGP interpretation, only SRS interpretation (if available) 498 * might use the entries. By not setting the entries and keeping them 499 * invalid, hardware will not access them but intercept. 500 */ 501 return sclp.has_sigpif; 502 } 503 void kvm_s390_reinject_machine_check(struct kvm_vcpu *vcpu, 504 struct mcck_volatile_info *mcck_info); 505 506 /** 507 * kvm_s390_vcpu_crypto_reset_all 508 * 509 * Reset the crypto attributes for each vcpu. This can be done while the vcpus 510 * are running as each vcpu will be removed from SIE before resetting the crypt 511 * attributes and restored to SIE afterward. 512 * 513 * Note: The kvm->lock must be held while calling this function 514 * 515 * @kvm: the KVM guest 516 */ 517 void kvm_s390_vcpu_crypto_reset_all(struct kvm *kvm); 518 519 /** 520 * kvm_s390_vcpu_pci_enable_interp 521 * 522 * Set the associated PCI attributes for each vcpu to allow for zPCI Load/Store 523 * interpretation as well as adapter interruption forwarding. 524 * 525 * @kvm: the KVM guest 526 */ 527 void kvm_s390_vcpu_pci_enable_interp(struct kvm *kvm); 528 529 /** 530 * diag9c_forwarding_hz 531 * 532 * Set the maximum number of diag9c forwarding per second 533 */ 534 extern unsigned int diag9c_forwarding_hz; 535 536 #endif 537