Lines Matching +full:gpa +full:- +full:0
1 // SPDX-License-Identifier: GPL-2.0
22 #include "kvm-s390.h"
26 struct kvm_s390_sie_block scb_s; /* 0x0000 */
31 struct mcck_volatile_info mcck_info; /* 0x0200 */
37 struct kvm_s390_sie_block *scb_o; /* 0x0218 */
39 struct gmap *gmap; /* 0x0220 */
41 unsigned long fault_addr; /* 0x0228 */
43 gpa_t sca_gpa; /* 0x0230 */
44 gpa_t itdba_gpa; /* 0x0238 */
45 gpa_t gvrd_gpa; /* 0x0240 */
46 gpa_t riccbd_gpa; /* 0x0248 */
47 gpa_t sdnx_gpa; /* 0x0250 */
48 __u8 reserved[0x0700 - 0x0258]; /* 0x0258 */
49 struct kvm_s390_crypto_cb crycb; /* 0x0700 */
50 __u8 fac[S390_ARCH_FAC_LIST_SIZE_BYTE]; /* 0x0800 */
57 scb->ipa = 0x1000; in set_validity_icpt()
58 scb->ipb = ((__u32) reason_code) << 16; in set_validity_icpt()
59 scb->icptcode = ICPT_VALIDITY; in set_validity_icpt()
66 atomic_or(PROG_REQUEST, &vsie_page->scb_s.prog20); in prefix_unmapped()
73 if (vsie_page->scb_s.prog0c & PROG_IN_SIE) in prefix_unmapped_sync()
74 atomic_or(CPUSTAT_STOP_INT, &vsie_page->scb_s.cpuflags); in prefix_unmapped_sync()
75 while (vsie_page->scb_s.prog0c & PROG_IN_SIE) in prefix_unmapped_sync()
82 atomic_andnot(PROG_REQUEST, &vsie_page->scb_s.prog20); in prefix_mapped()
88 return !(atomic_read(&vsie_page->scb_s.prog20) & PROG_REQUEST); in prefix_is_mapped()
97 cpuflags = atomic_read(&vsie_page->scb_o->cpuflags); in update_intervention_requests()
98 atomic_andnot(bits, &vsie_page->scb_s.cpuflags); in update_intervention_requests()
99 atomic_or(cpuflags & bits, &vsie_page->scb_s.cpuflags); in update_intervention_requests()
105 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in prepare_cpuflags()
106 struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; in prepare_cpuflags()
107 int newflags, cpuflags = atomic_read(&scb_o->cpuflags); in prepare_cpuflags()
111 return set_validity_icpt(scb_s, 0x0001U); in prepare_cpuflags()
114 return set_validity_icpt(scb_s, 0x0001U); in prepare_cpuflags()
116 return set_validity_icpt(scb_s, 0x0007U); in prepare_cpuflags()
120 if (cpuflags & CPUSTAT_GED && test_kvm_facility(vcpu->kvm, 8)) in prepare_cpuflags()
122 if (cpuflags & CPUSTAT_GED2 && test_kvm_facility(vcpu->kvm, 78)) { in prepare_cpuflags()
124 return set_validity_icpt(scb_s, 0x0001U); in prepare_cpuflags()
127 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GPERE)) in prepare_cpuflags()
129 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GSLS)) in prepare_cpuflags()
131 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_IBS)) in prepare_cpuflags()
133 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_KSS)) in prepare_cpuflags()
136 atomic_set(&scb_s->cpuflags, newflags); in prepare_cpuflags()
137 return 0; in prepare_cpuflags()
150 return -EFAULT; in setup_apcb10()
152 apcb_s->apm[0] = apcb_h->apm[0] & tmp.apm[0]; in setup_apcb10()
153 apcb_s->aqm[0] = apcb_h->aqm[0] & tmp.aqm[0] & 0xffff000000000000UL; in setup_apcb10()
154 apcb_s->adm[0] = apcb_h->adm[0] & tmp.adm[0] & 0xffff000000000000UL; in setup_apcb10()
156 return 0; in setup_apcb10()
161 * setup_apcb00 - Copy to APCB FORMAT0 from APCB FORMAT0
167 * Returns 0 and -EFAULT on error reading guest apcb
178 return -EFAULT; in setup_apcb00()
183 return 0; in setup_apcb00()
187 * setup_apcb11 - Copy the FORMAT1 APCB from the guest to the shadow CRYCB
193 * Returns 0 and -EFAULT on error reading guest apcb
205 return -EFAULT; in setup_apcb11()
210 return 0; in setup_apcb11()
214 * setup_apcb - Create a shadow copy of the apcb.
225 * Return 0 or an error number if the guest and host crycb are incompatible.
235 return -EACCES; in setup_apcb()
237 return -EINVAL; in setup_apcb()
238 return setup_apcb11(vcpu, (unsigned long *)&crycb_s->apcb1, in setup_apcb()
240 (unsigned long *)&crycb_h->apcb1); in setup_apcb()
244 return setup_apcb10(vcpu, &crycb_s->apcb1, in setup_apcb()
246 &crycb_h->apcb1); in setup_apcb()
249 (unsigned long *) &crycb_s->apcb0, in setup_apcb()
251 (unsigned long *) &crycb_h->apcb0); in setup_apcb()
256 return -EACCES; in setup_apcb()
260 return setup_apcb10(vcpu, &crycb_s->apcb1, in setup_apcb()
262 &crycb_h->apcb1); in setup_apcb()
266 (unsigned long *) &crycb_s->apcb0, in setup_apcb()
268 (unsigned long *) &crycb_h->apcb0); in setup_apcb()
271 return -EINVAL; in setup_apcb()
275 * shadow_crycb - Create a shadow copy of the crycb block
282 * We accept format-1 or format-2, but we convert format-1 into format-2
284 * Using format-2 enables the firmware to choose the right format when
286 * There is nothing to do for format-0.
291 * Returns: - 0 if shadowed or nothing to do
292 * - > 0 if control has to be given to guest 2
296 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in shadow_crycb()
297 struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; in shadow_crycb()
298 const uint32_t crycbd_o = READ_ONCE(scb_o->crycbd); in shadow_crycb()
299 const u32 crycb_addr = crycbd_o & 0x7ffffff8U; in shadow_crycb()
305 int key_msk = test_kvm_facility(vcpu->kvm, 76); in shadow_crycb()
307 int fmt_h = vcpu->arch.sie_block->crycbd & CRYCB_FORMAT_MASK; in shadow_crycb()
308 int ret = 0; in shadow_crycb()
310 scb_s->crycbd = 0; in shadow_crycb()
312 apie_h = vcpu->arch.sie_block->eca & ECA_APIE; in shadow_crycb()
313 apie_s = apie_h & scb_o->eca; in shadow_crycb()
315 return 0; in shadow_crycb()
318 return set_validity_icpt(scb_s, 0x0039U); in shadow_crycb()
323 return set_validity_icpt(scb_s, 0x003CU); in shadow_crycb()
326 ret = setup_apcb(vcpu, &vsie_page->crycb, crycb_addr, in shadow_crycb()
327 vcpu->kvm->arch.crypto.crycb, in shadow_crycb()
331 scb_s->eca |= scb_o->eca & ECA_APIE; in shadow_crycb()
335 ecb3_flags = scb_o->ecb3 & vcpu->arch.sie_block->ecb3 & in shadow_crycb()
337 ecd_flags = scb_o->ecd & vcpu->arch.sie_block->ecd & ECD_ECC; in shadow_crycb()
343 vsie_page->crycb.dea_wrapping_key_mask, 56)) in shadow_crycb()
344 return set_validity_icpt(scb_s, 0x0035U); in shadow_crycb()
346 scb_s->ecb3 |= ecb3_flags; in shadow_crycb()
347 scb_s->ecd |= ecd_flags; in shadow_crycb()
350 b1 = (unsigned long *) vsie_page->crycb.dea_wrapping_key_mask; in shadow_crycb()
352 vcpu->kvm->arch.crypto.crycb->dea_wrapping_key_mask; in shadow_crycb()
353 /* as 56%8 == 0, bitmap_xor won't overwrite any data */ in shadow_crycb()
357 case -EINVAL: in shadow_crycb()
358 return set_validity_icpt(scb_s, 0x0022U); in shadow_crycb()
359 case -EFAULT: in shadow_crycb()
360 return set_validity_icpt(scb_s, 0x0035U); in shadow_crycb()
361 case -EACCES: in shadow_crycb()
362 return set_validity_icpt(scb_s, 0x003CU); in shadow_crycb()
364 scb_s->crycbd = ((__u32)(__u64) &vsie_page->crycb) | CRYCB_FORMAT2; in shadow_crycb()
365 return 0; in shadow_crycb()
371 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in prepare_ibc()
372 struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; in prepare_ibc()
373 /* READ_ONCE does not work on bitfields - use a temporary variable */ in prepare_ibc()
374 const uint32_t __new_ibc = scb_o->ibc; in prepare_ibc()
375 const uint32_t new_ibc = READ_ONCE(__new_ibc) & 0x0fffU; in prepare_ibc()
376 __u64 min_ibc = (sclp.ibc >> 16) & 0x0fffU; in prepare_ibc()
378 scb_s->ibc = 0; in prepare_ibc()
380 if (vcpu->kvm->arch.model.ibc && new_ibc) { in prepare_ibc()
381 scb_s->ibc = new_ibc; in prepare_ibc()
383 if (scb_s->ibc < min_ibc) in prepare_ibc()
384 scb_s->ibc = min_ibc; in prepare_ibc()
386 if (scb_s->ibc > vcpu->kvm->arch.model.ibc) in prepare_ibc()
387 scb_s->ibc = vcpu->kvm->arch.model.ibc; in prepare_ibc()
394 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in unshadow_scb()
395 struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; in unshadow_scb()
398 scb_o->icptcode = scb_s->icptcode; in unshadow_scb()
399 scb_o->icptstatus = scb_s->icptstatus; in unshadow_scb()
400 scb_o->ipa = scb_s->ipa; in unshadow_scb()
401 scb_o->ipb = scb_s->ipb; in unshadow_scb()
402 scb_o->gbea = scb_s->gbea; in unshadow_scb()
405 scb_o->cputm = scb_s->cputm; in unshadow_scb()
406 scb_o->ckc = scb_s->ckc; in unshadow_scb()
407 scb_o->todpr = scb_s->todpr; in unshadow_scb()
410 scb_o->gpsw = scb_s->gpsw; in unshadow_scb()
411 scb_o->gg14 = scb_s->gg14; in unshadow_scb()
412 scb_o->gg15 = scb_s->gg15; in unshadow_scb()
413 memcpy(scb_o->gcr, scb_s->gcr, 128); in unshadow_scb()
414 scb_o->pp = scb_s->pp; in unshadow_scb()
417 if (test_kvm_facility(vcpu->kvm, 82)) { in unshadow_scb()
418 scb_o->fpf &= ~FPF_BPBC; in unshadow_scb()
419 scb_o->fpf |= scb_s->fpf & FPF_BPBC; in unshadow_scb()
423 switch (scb_s->icptcode) { in unshadow_scb()
427 memcpy((void *)((u64)scb_o + 0xc0), in unshadow_scb()
428 (void *)((u64)scb_s + 0xc0), 0xf0 - 0xc0); in unshadow_scb()
432 if (scb_s->ihcpu != 0xffffU) in unshadow_scb()
433 scb_o->ihcpu = scb_s->ihcpu; in unshadow_scb()
440 * Returns: - 0 if the scb has been shadowed
441 * - > 0 if control has to be given to guest 2
445 struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; in shadow_scb()
446 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in shadow_scb()
447 /* READ_ONCE does not work on bitfields - use a temporary variable */ in shadow_scb()
448 const uint32_t __new_prefix = scb_o->prefix; in shadow_scb()
450 const bool wants_tx = READ_ONCE(scb_o->ecb) & ECB_TE; in shadow_scb()
451 bool had_tx = scb_s->ecb & ECB_TE; in shadow_scb()
452 unsigned long new_mso = 0; in shadow_scb()
456 scb_s->icptcode = 0; in shadow_scb()
457 scb_s->eca = 0; in shadow_scb()
458 scb_s->ecb = 0; in shadow_scb()
459 scb_s->ecb2 = 0; in shadow_scb()
460 scb_s->ecb3 = 0; in shadow_scb()
461 scb_s->ecd = 0; in shadow_scb()
462 scb_s->fac = 0; in shadow_scb()
463 scb_s->fpf = 0; in shadow_scb()
470 scb_s->cputm = scb_o->cputm; in shadow_scb()
471 scb_s->ckc = scb_o->ckc; in shadow_scb()
472 scb_s->todpr = scb_o->todpr; in shadow_scb()
473 scb_s->epoch = scb_o->epoch; in shadow_scb()
476 scb_s->gpsw = scb_o->gpsw; in shadow_scb()
477 scb_s->gg14 = scb_o->gg14; in shadow_scb()
478 scb_s->gg15 = scb_o->gg15; in shadow_scb()
479 memcpy(scb_s->gcr, scb_o->gcr, 128); in shadow_scb()
480 scb_s->pp = scb_o->pp; in shadow_scb()
483 scb_s->gbea = scb_o->gbea; in shadow_scb()
484 scb_s->lctl = scb_o->lctl; in shadow_scb()
485 scb_s->svcc = scb_o->svcc; in shadow_scb()
486 scb_s->ictl = scb_o->ictl; in shadow_scb()
492 if (!(atomic_read(&scb_s->cpuflags) & CPUSTAT_KSS)) in shadow_scb()
493 scb_s->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE; in shadow_scb()
495 scb_s->icpua = scb_o->icpua; in shadow_scb()
497 if (!(atomic_read(&scb_s->cpuflags) & CPUSTAT_SM)) in shadow_scb()
498 new_mso = READ_ONCE(scb_o->mso) & 0xfffffffffff00000UL; in shadow_scb()
500 if (scb_s->mso != new_mso || scb_s->prefix != new_prefix) in shadow_scb()
503 scb_s->msl = scb_o->msl & 0xfffffffffff00000UL; in shadow_scb()
504 scb_s->mso = new_mso; in shadow_scb()
505 scb_s->prefix = new_prefix; in shadow_scb()
508 if (scb_s->ihcpu != 0xffffU) in shadow_scb()
509 scb_s->ihcpu = scb_o->ihcpu; in shadow_scb()
512 scb_s->eca |= scb_o->eca & (ECA_MVPGI | ECA_PROTEXCI); in shadow_scb()
513 /* Host-protection-interruption introduced with ESOP */ in shadow_scb()
514 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_ESOP)) in shadow_scb()
515 scb_s->ecb |= scb_o->ecb & ECB_HOSTPROTINT; in shadow_scb()
522 if (test_kvm_facility(vcpu->kvm, 11)) in shadow_scb()
523 scb_s->ecb |= scb_o->ecb & ECB_PTF; in shadow_scb()
525 if (test_kvm_facility(vcpu->kvm, 73) && wants_tx) { in shadow_scb()
529 scb_s->ecb |= ECB_TE; in shadow_scb()
532 scb_s->ecb |= scb_o->ecb & ECB_SPECI; in shadow_scb()
534 if (test_kvm_facility(vcpu->kvm, 82)) in shadow_scb()
535 scb_s->fpf |= scb_o->fpf & FPF_BPBC; in shadow_scb()
537 if (test_kvm_facility(vcpu->kvm, 129)) { in shadow_scb()
538 scb_s->eca |= scb_o->eca & ECA_VX; in shadow_scb()
539 scb_s->ecd |= scb_o->ecd & ECD_HOSTREGMGMT; in shadow_scb()
541 /* Run-time-Instrumentation */ in shadow_scb()
542 if (test_kvm_facility(vcpu->kvm, 64)) in shadow_scb()
543 scb_s->ecb3 |= scb_o->ecb3 & ECB3_RI; in shadow_scb()
545 if (test_kvm_facility(vcpu->kvm, 130)) in shadow_scb()
546 scb_s->ecb2 |= scb_o->ecb2 & ECB2_IEP; in shadow_scb()
548 if (test_kvm_facility(vcpu->kvm, 133)) { in shadow_scb()
549 scb_s->ecb |= scb_o->ecb & ECB_GS; in shadow_scb()
550 scb_s->ecd |= scb_o->ecd & ECD_HOSTREGMGMT; in shadow_scb()
552 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_SIIF)) in shadow_scb()
553 scb_s->eca |= scb_o->eca & ECA_SII; in shadow_scb()
554 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_IB)) in shadow_scb()
555 scb_s->eca |= scb_o->eca & ECA_IB; in shadow_scb()
556 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_CEI)) in shadow_scb()
557 scb_s->eca |= scb_o->eca & ECA_CEI; in shadow_scb()
559 if (test_kvm_facility(vcpu->kvm, 139)) { in shadow_scb()
560 scb_s->ecd |= scb_o->ecd & ECD_MEF; in shadow_scb()
561 scb_s->epdx = scb_o->epdx; in shadow_scb()
565 if (test_kvm_facility(vcpu->kvm, 156)) in shadow_scb()
566 scb_s->ecd |= scb_o->ecd & ECD_ETOKENF; in shadow_scb()
568 scb_s->hpid = HPID_VSIE; in shadow_scb()
569 scb_s->cpnc = scb_o->cpnc; in shadow_scb()
582 struct kvm *kvm = gmap->private; in kvm_s390_vsie_gmap_notifier()
594 for (i = 0; i < kvm->arch.vsie.page_count; i++) { in kvm_s390_vsie_gmap_notifier()
595 page = READ_ONCE(kvm->arch.vsie.pages[i]); in kvm_s390_vsie_gmap_notifier()
599 if (READ_ONCE(cur->gmap) != gmap) in kvm_s390_vsie_gmap_notifier()
601 prefix = cur->scb_s.prefix << GUEST_PREFIX_SHIFT; in kvm_s390_vsie_gmap_notifier()
603 prefix += cur->scb_s.mso; in kvm_s390_vsie_gmap_notifier()
604 if (prefix <= end && start <= prefix + 2 * PAGE_SIZE - 1) in kvm_s390_vsie_gmap_notifier()
616 * Returns: - 0 on if successfully mapped or already mapped
617 * - > 0 if control has to be given to guest 2
618 * - -EAGAIN if the caller can retry immediately
619 * - -ENOMEM if out of memory
623 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in map_prefix()
624 u64 prefix = scb_s->prefix << GUEST_PREFIX_SHIFT; in map_prefix()
628 return 0; in map_prefix()
634 prefix += scb_s->mso; in map_prefix()
636 rc = kvm_s390_shadow_fault(vcpu, vsie_page->gmap, prefix, NULL); in map_prefix()
637 if (!rc && (scb_s->ecb & ECB_TE)) in map_prefix()
638 rc = kvm_s390_shadow_fault(vcpu, vsie_page->gmap, in map_prefix()
646 if (rc > 0 || rc == -EFAULT) in map_prefix()
647 rc = set_validity_icpt(scb_s, 0x0037U); in map_prefix()
652 * Pin the guest page given by gpa and set hpa to the pinned host address.
655 * Returns: - 0 on success
656 * - -EINVAL if the gpa is not valid guest storage
658 static int pin_guest_page(struct kvm *kvm, gpa_t gpa, hpa_t *hpa) in pin_guest_page() argument
662 page = gfn_to_page(kvm, gpa_to_gfn(gpa)); in pin_guest_page()
664 return -EINVAL; in pin_guest_page()
665 *hpa = (hpa_t)page_to_phys(page) + (gpa & ~PAGE_MASK); in pin_guest_page()
666 return 0; in pin_guest_page()
670 static void unpin_guest_page(struct kvm *kvm, gpa_t gpa, hpa_t hpa) in unpin_guest_page() argument
674 mark_page_dirty(kvm, gpa_to_gfn(gpa)); in unpin_guest_page()
680 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in unpin_blocks()
683 hpa = (u64) scb_s->scaoh << 32 | scb_s->scaol; in unpin_blocks()
685 unpin_guest_page(vcpu->kvm, vsie_page->sca_gpa, hpa); in unpin_blocks()
686 vsie_page->sca_gpa = 0; in unpin_blocks()
687 scb_s->scaol = 0; in unpin_blocks()
688 scb_s->scaoh = 0; in unpin_blocks()
691 hpa = scb_s->itdba; in unpin_blocks()
693 unpin_guest_page(vcpu->kvm, vsie_page->itdba_gpa, hpa); in unpin_blocks()
694 vsie_page->itdba_gpa = 0; in unpin_blocks()
695 scb_s->itdba = 0; in unpin_blocks()
698 hpa = scb_s->gvrd; in unpin_blocks()
700 unpin_guest_page(vcpu->kvm, vsie_page->gvrd_gpa, hpa); in unpin_blocks()
701 vsie_page->gvrd_gpa = 0; in unpin_blocks()
702 scb_s->gvrd = 0; in unpin_blocks()
705 hpa = scb_s->riccbd; in unpin_blocks()
707 unpin_guest_page(vcpu->kvm, vsie_page->riccbd_gpa, hpa); in unpin_blocks()
708 vsie_page->riccbd_gpa = 0; in unpin_blocks()
709 scb_s->riccbd = 0; in unpin_blocks()
712 hpa = scb_s->sdnxo; in unpin_blocks()
714 unpin_guest_page(vcpu->kvm, vsie_page->sdnx_gpa, hpa); in unpin_blocks()
715 vsie_page->sdnx_gpa = 0; in unpin_blocks()
716 scb_s->sdnxo = 0; in unpin_blocks()
730 * Returns: - 0 if all blocks were pinned.
731 * - > 0 if control has to be given to guest 2
732 * - -ENOMEM if out of memory
736 struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; in pin_blocks()
737 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in pin_blocks()
739 gpa_t gpa; in pin_blocks() local
740 int rc = 0; in pin_blocks()
742 gpa = READ_ONCE(scb_o->scaol) & ~0xfUL; in pin_blocks()
743 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_64BSCAO)) in pin_blocks()
744 gpa |= (u64) READ_ONCE(scb_o->scaoh) << 32; in pin_blocks()
745 if (gpa) { in pin_blocks()
746 if (gpa < 2 * PAGE_SIZE) in pin_blocks()
747 rc = set_validity_icpt(scb_s, 0x0038U); in pin_blocks()
748 else if ((gpa & ~0x1fffUL) == kvm_s390_get_prefix(vcpu)) in pin_blocks()
749 rc = set_validity_icpt(scb_s, 0x0011U); in pin_blocks()
750 else if ((gpa & PAGE_MASK) != in pin_blocks()
751 ((gpa + sizeof(struct bsca_block) - 1) & PAGE_MASK)) in pin_blocks()
752 rc = set_validity_icpt(scb_s, 0x003bU); in pin_blocks()
754 rc = pin_guest_page(vcpu->kvm, gpa, &hpa); in pin_blocks()
756 rc = set_validity_icpt(scb_s, 0x0034U); in pin_blocks()
760 vsie_page->sca_gpa = gpa; in pin_blocks()
761 scb_s->scaoh = (u32)((u64)hpa >> 32); in pin_blocks()
762 scb_s->scaol = (u32)(u64)hpa; in pin_blocks()
765 gpa = READ_ONCE(scb_o->itdba) & ~0xffUL; in pin_blocks()
766 if (gpa && (scb_s->ecb & ECB_TE)) { in pin_blocks()
767 if (gpa < 2 * PAGE_SIZE) { in pin_blocks()
768 rc = set_validity_icpt(scb_s, 0x0080U); in pin_blocks()
772 rc = pin_guest_page(vcpu->kvm, gpa, &hpa); in pin_blocks()
774 rc = set_validity_icpt(scb_s, 0x0080U); in pin_blocks()
777 vsie_page->itdba_gpa = gpa; in pin_blocks()
778 scb_s->itdba = hpa; in pin_blocks()
781 gpa = READ_ONCE(scb_o->gvrd) & ~0x1ffUL; in pin_blocks()
782 if (gpa && (scb_s->eca & ECA_VX) && !(scb_s->ecd & ECD_HOSTREGMGMT)) { in pin_blocks()
783 if (gpa < 2 * PAGE_SIZE) { in pin_blocks()
784 rc = set_validity_icpt(scb_s, 0x1310U); in pin_blocks()
791 rc = pin_guest_page(vcpu->kvm, gpa, &hpa); in pin_blocks()
793 rc = set_validity_icpt(scb_s, 0x1310U); in pin_blocks()
796 vsie_page->gvrd_gpa = gpa; in pin_blocks()
797 scb_s->gvrd = hpa; in pin_blocks()
800 gpa = READ_ONCE(scb_o->riccbd) & ~0x3fUL; in pin_blocks()
801 if (gpa && (scb_s->ecb3 & ECB3_RI)) { in pin_blocks()
802 if (gpa < 2 * PAGE_SIZE) { in pin_blocks()
803 rc = set_validity_icpt(scb_s, 0x0043U); in pin_blocks()
807 rc = pin_guest_page(vcpu->kvm, gpa, &hpa); in pin_blocks()
809 rc = set_validity_icpt(scb_s, 0x0043U); in pin_blocks()
812 /* Validity 0x0044 will be checked by SIE */ in pin_blocks()
813 vsie_page->riccbd_gpa = gpa; in pin_blocks()
814 scb_s->riccbd = hpa; in pin_blocks()
816 if (((scb_s->ecb & ECB_GS) && !(scb_s->ecd & ECD_HOSTREGMGMT)) || in pin_blocks()
817 (scb_s->ecd & ECD_ETOKENF)) { in pin_blocks()
820 gpa = READ_ONCE(scb_o->sdnxo) & ~0xfUL; in pin_blocks()
821 sdnxc = READ_ONCE(scb_o->sdnxo) & 0xfUL; in pin_blocks()
822 if (!gpa || gpa < 2 * PAGE_SIZE) { in pin_blocks()
823 rc = set_validity_icpt(scb_s, 0x10b0U); in pin_blocks()
827 rc = set_validity_icpt(scb_s, 0x10b1U); in pin_blocks()
830 if (gpa & ((1 << sdnxc) - 1)) { in pin_blocks()
831 rc = set_validity_icpt(scb_s, 0x10b2U); in pin_blocks()
837 rc = pin_guest_page(vcpu->kvm, gpa, &hpa); in pin_blocks()
839 rc = set_validity_icpt(scb_s, 0x10b0U); in pin_blocks()
842 vsie_page->sdnx_gpa = gpa; in pin_blocks()
843 scb_s->sdnxo = hpa | sdnxc; in pin_blocks()
845 return 0; in pin_blocks()
853 gpa_t gpa) in unpin_scb() argument
855 hpa_t hpa = (hpa_t) vsie_page->scb_o; in unpin_scb()
858 unpin_guest_page(vcpu->kvm, gpa, hpa); in unpin_scb()
859 vsie_page->scb_o = NULL; in unpin_scb()
863 * Pin the scb at gpa provided by guest 2 at vsie_page->scb_o.
865 * Returns: - 0 if the scb was pinned.
866 * - > 0 if control has to be given to guest 2
869 gpa_t gpa) in pin_scb() argument
874 rc = pin_guest_page(vcpu->kvm, gpa, &hpa); in pin_scb()
880 vsie_page->scb_o = phys_to_virt(hpa); in pin_scb()
881 return 0; in pin_scb()
887 * Returns: - > 0 if control has to be given to guest 2
888 * < 0 if an error occurred during injection.
896 /* 0-51: virtual address */ in inject_fault()
897 (vaddr & 0xfffffffffffff000UL) | in inject_fault()
898 /* 52-53: store / fetch */ in inject_fault()
900 /* 62-63: asce id (always primary == 0) */ in inject_fault()
901 .exc_access_id = 0, /* always primary */ in inject_fault()
902 .op_access_id = 0, /* not MVPG */ in inject_fault()
907 pgm.trans_exc_code |= 0x4UL; in inject_fault()
916 * Returns: - 0 if the fault was resolved
917 * - > 0 if control has to be given to guest 2
918 * - < 0 if an error occurred
924 if (current->thread.gmap_int_code == PGM_PROTECTION) in handle_fault()
927 current->thread.gmap_addr, 1); in handle_fault()
929 rc = kvm_s390_shadow_fault(vcpu, vsie_page->gmap, in handle_fault()
930 current->thread.gmap_addr, NULL); in handle_fault()
931 if (rc > 0) { in handle_fault()
933 current->thread.gmap_addr, in handle_fault()
934 current->thread.gmap_write_flag); in handle_fault()
935 if (rc >= 0) in handle_fault()
936 vsie_page->fault_addr = current->thread.gmap_addr; in handle_fault()
943 * one superfluous SIE re-entry and direct exit.
950 if (vsie_page->fault_addr) in handle_last_fault()
951 kvm_s390_shadow_fault(vcpu, vsie_page->gmap, in handle_last_fault()
952 vsie_page->fault_addr, NULL); in handle_last_fault()
953 vsie_page->fault_addr = 0; in handle_last_fault()
958 vsie_page->scb_s.icptcode = 0; in clear_vsie_icpt()
964 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in retry_vsie_icpt()
965 int ilen = insn_length(scb_s->ipa >> 8); in retry_vsie_icpt()
968 if (scb_s->icptstatus & 1) { in retry_vsie_icpt()
969 ilen = (scb_s->icptstatus >> 4) & 0x6; in retry_vsie_icpt()
973 scb_s->gpsw.addr = __rewind_psw(scb_s->gpsw, ilen); in retry_vsie_icpt()
981 * Returns: - 0 if handled (retry or guest 2 icpt)
982 * - > 0 if control has to be given to guest 2
986 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in handle_stfle()
987 __u32 fac = READ_ONCE(vsie_page->scb_o->fac) & 0x7ffffff8U; in handle_stfle()
989 if (fac && test_kvm_facility(vcpu->kvm, 7)) { in handle_stfle()
991 if (read_guest_real(vcpu, fac, &vsie_page->fac, in handle_stfle()
992 sizeof(vsie_page->fac))) in handle_stfle()
993 return set_validity_icpt(scb_s, 0x1090U); in handle_stfle()
994 scb_s->fac = (__u32)(__u64) &vsie_page->fac; in handle_stfle()
996 return 0; in handle_stfle()
1009 reg &= 0xf; in vsie_get_register()
1012 return vsie_page->scb_s.gg15; in vsie_get_register()
1014 return vsie_page->scb_s.gg14; in vsie_get_register()
1016 return vcpu->run->s.regs.gprs[reg]; in vsie_get_register()
1022 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in vsie_handle_mvpg()
1024 u64 *pei_block = &vsie_page->scb_o->mcic; in vsie_handle_mvpg()
1028 cr0.val = vcpu->arch.sie_block->gcr[0]; in vsie_handle_mvpg()
1029 edat = cr0.edat && test_kvm_facility(vcpu->kvm, 8); in vsie_handle_mvpg()
1030 mask = _kvm_s390_logical_to_effective(&scb_s->gpsw, PAGE_MASK); in vsie_handle_mvpg()
1031 prefix = scb_s->prefix << GUEST_PREFIX_SHIFT; in vsie_handle_mvpg()
1033 dest = vsie_get_register(vcpu, vsie_page, scb_s->ipb >> 20) & mask; in vsie_handle_mvpg()
1034 dest = _kvm_s390_real_to_abs(prefix, dest) + scb_s->mso; in vsie_handle_mvpg()
1035 src = vsie_get_register(vcpu, vsie_page, scb_s->ipb >> 16) & mask; in vsie_handle_mvpg()
1036 src = _kvm_s390_real_to_abs(prefix, src) + scb_s->mso; in vsie_handle_mvpg()
1038 rc_dest = kvm_s390_shadow_fault(vcpu, vsie_page->gmap, dest, &pei_dest); in vsie_handle_mvpg()
1039 rc_src = kvm_s390_shadow_fault(vcpu, vsie_page->gmap, src, &pei_src); in vsie_handle_mvpg()
1041 * Either everything went well, or something non-critical went wrong in vsie_handle_mvpg()
1044 if (rc_dest == -EAGAIN || rc_src == -EAGAIN || (!rc_dest && !rc_src)) { in vsie_handle_mvpg()
1046 return -EAGAIN; in vsie_handle_mvpg()
1049 if (rc_dest < 0) in vsie_handle_mvpg()
1051 if (rc_src < 0) in vsie_handle_mvpg()
1067 rc_dest = rc_dest == PGM_ASCE_TYPE ? rc_dest : 0; in vsie_handle_mvpg()
1068 rc_src = rc_src == PGM_ASCE_TYPE ? rc_src : 0; in vsie_handle_mvpg()
1070 rc_dest = rc_dest != PGM_PAGE_TRANSLATION ? rc_dest : 0; in vsie_handle_mvpg()
1071 rc_src = rc_src != PGM_PAGE_TRANSLATION ? rc_src : 0; in vsie_handle_mvpg()
1074 pei_block[0] = pei_dest; in vsie_handle_mvpg()
1088 return inject_fault(vcpu, rc_src, src, 0); in vsie_handle_mvpg()
1095 * Returns: - 0 everything went fine
1096 * - > 0 if control has to be given to guest 2
1097 * - < 0 if an error occurred
1100 __releases(vcpu->kvm->srcu) in do_vsie_run()
1101 __acquires(vcpu->kvm->srcu) in do_vsie_run()
1103 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in do_vsie_run()
1104 struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; in do_vsie_run()
1106 int rc = 0; in do_vsie_run()
1121 if (test_kvm_facility(vcpu->kvm, 82) && in do_vsie_run()
1122 vcpu->arch.sie_block->fpf & FPF_BPBC) in do_vsie_run()
1135 vcpu->arch.sie_block->prog0c |= PROG_IN_SIE; in do_vsie_run()
1140 rc = sie64a(scb_s, vcpu->run->s.regs.gprs); in do_vsie_run()
1142 vcpu->arch.sie_block->prog0c &= ~PROG_IN_SIE; in do_vsie_run()
1154 if (rc == -EINTR) { in do_vsie_run()
1156 kvm_s390_reinject_machine_check(vcpu, &vsie_page->mcck_info); in do_vsie_run()
1157 return 0; in do_vsie_run()
1160 if (rc > 0) in do_vsie_run()
1161 rc = 0; /* we could still have an icpt */ in do_vsie_run()
1162 else if (rc == -EFAULT) in do_vsie_run()
1165 switch (scb_s->icptcode) { in do_vsie_run()
1167 if (scb_s->ipa == 0xb2b0) in do_vsie_run()
1171 /* stop not requested by g2 - must have been a kick */ in do_vsie_run()
1172 if (!(atomic_read(&scb_o->cpuflags) & CPUSTAT_STOP_INT)) in do_vsie_run()
1176 if ((scb_s->ipa & 0xf000) != 0xf000) in do_vsie_run()
1177 scb_s->ipa += 0x1000; in do_vsie_run()
1180 if (scb_s->ipa == 0xb254) in do_vsie_run()
1189 if (vsie_page->gmap) in release_gmap_shadow()
1190 gmap_put(vsie_page->gmap); in release_gmap_shadow()
1191 WRITE_ONCE(vsie_page->gmap, NULL); in release_gmap_shadow()
1203 asce = vcpu->arch.sie_block->gcr[1]; in acquire_gmap_shadow()
1204 cr0.val = vcpu->arch.sie_block->gcr[0]; in acquire_gmap_shadow()
1205 edat = cr0.edat && test_kvm_facility(vcpu->kvm, 8); in acquire_gmap_shadow()
1206 edat += edat && test_kvm_facility(vcpu->kvm, 78); in acquire_gmap_shadow()
1213 if (vsie_page->gmap && gmap_shadow_valid(vsie_page->gmap, asce, edat)) { in acquire_gmap_shadow()
1214 vcpu->kvm->stat.gmap_shadow_reuse++; in acquire_gmap_shadow()
1215 return 0; in acquire_gmap_shadow()
1218 /* release the old shadow - if any, and mark the prefix as unmapped */ in acquire_gmap_shadow()
1220 gmap = gmap_shadow(vcpu->arch.gmap, asce, edat); in acquire_gmap_shadow()
1223 vcpu->kvm->stat.gmap_shadow_create++; in acquire_gmap_shadow()
1224 WRITE_ONCE(vsie_page->gmap, gmap); in acquire_gmap_shadow()
1225 return 0; in acquire_gmap_shadow()
1234 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in register_shadow_scb()
1236 WRITE_ONCE(vcpu->arch.vsie_block, &vsie_page->scb_s); in register_shadow_scb()
1239 * therefore the vsie -> Simulate Wait state. in register_shadow_scb()
1247 scb_s->epoch += vcpu->kvm->arch.epoch; in register_shadow_scb()
1249 if (scb_s->ecd & ECD_MEF) { in register_shadow_scb()
1250 scb_s->epdx += vcpu->kvm->arch.epdx; in register_shadow_scb()
1251 if (scb_s->epoch < vcpu->kvm->arch.epoch) in register_shadow_scb()
1252 scb_s->epdx += 1; in register_shadow_scb()
1264 WRITE_ONCE(vcpu->arch.vsie_block, NULL); in unregister_shadow_scb()
1271 * Returns: - 0 if no errors occurred
1272 * - > 0 if control has to be given to guest 2
1273 * - -ENOMEM if out of memory
1277 struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; in vsie_run()
1278 int rc = 0; in vsie_run()
1285 gmap_enable(vsie_page->gmap); in vsie_run()
1288 gmap_enable(vcpu->arch.gmap); in vsie_run()
1290 atomic_andnot(PROG_BLOCK_SIE, &scb_s->prog20); in vsie_run()
1292 if (rc == -EAGAIN) in vsie_run()
1293 rc = 0; in vsie_run()
1294 if (rc || scb_s->icptcode || signal_pending(current) || in vsie_run()
1295 kvm_s390_vcpu_has_irq(vcpu, 0) || in vsie_run()
1301 if (rc == -EFAULT) { in vsie_run()
1312 scb_s->icptcode = ICPT_PROGI; in vsie_run()
1313 scb_s->iprcc = PGM_ADDRESSING; in vsie_run()
1314 scb_s->pgmilc = 4; in vsie_run()
1315 scb_s->gpsw.addr = __rewind_psw(scb_s->gpsw, 4); in vsie_run()
1324 * Returns: - address of a vsie page (cached or new one)
1325 * - NULL if the same scb address is already used by another VCPU
1326 * - ERR_PTR(-ENOMEM) if out of memory
1335 page = radix_tree_lookup(&kvm->arch.vsie.addr_to_page, addr >> 9); in get_vsie_page()
1339 if (page->index == addr) in get_vsie_page()
1353 nr_vcpus = atomic_read(&kvm->online_vcpus); in get_vsie_page()
1355 mutex_lock(&kvm->arch.vsie.mutex); in get_vsie_page()
1356 if (kvm->arch.vsie.page_count < nr_vcpus) { in get_vsie_page()
1359 mutex_unlock(&kvm->arch.vsie.mutex); in get_vsie_page()
1360 return ERR_PTR(-ENOMEM); in get_vsie_page()
1363 kvm->arch.vsie.pages[kvm->arch.vsie.page_count] = page; in get_vsie_page()
1364 kvm->arch.vsie.page_count++; in get_vsie_page()
1368 page = kvm->arch.vsie.pages[kvm->arch.vsie.next]; in get_vsie_page()
1372 kvm->arch.vsie.next++; in get_vsie_page()
1373 kvm->arch.vsie.next %= nr_vcpus; in get_vsie_page()
1375 if (page->index != ULONG_MAX) in get_vsie_page()
1376 radix_tree_delete(&kvm->arch.vsie.addr_to_page, in get_vsie_page()
1377 page->index >> 9); in get_vsie_page()
1380 page->index = ULONG_MAX; in get_vsie_page()
1383 if (radix_tree_insert(&kvm->arch.vsie.addr_to_page, addr >> 9, page)) { in get_vsie_page()
1385 mutex_unlock(&kvm->arch.vsie.mutex); in get_vsie_page()
1388 page->index = addr; in get_vsie_page()
1389 mutex_unlock(&kvm->arch.vsie.mutex); in get_vsie_page()
1392 memset(&vsie_page->scb_s, 0, sizeof(struct kvm_s390_sie_block)); in get_vsie_page()
1394 vsie_page->fault_addr = 0; in get_vsie_page()
1395 vsie_page->scb_s.ihcpu = 0xffffU; in get_vsie_page()
1413 vcpu->stat.instruction_sie++; in kvm_s390_handle_vsie()
1414 if (!test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_SIEF2)) in kvm_s390_handle_vsie()
1415 return -EOPNOTSUPP; in kvm_s390_handle_vsie()
1416 if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE) in kvm_s390_handle_vsie()
1423 if (unlikely(scb_addr & 0x1ffUL)) in kvm_s390_handle_vsie()
1426 if (signal_pending(current) || kvm_s390_vcpu_has_irq(vcpu, 0) || in kvm_s390_handle_vsie()
1428 return 0; in kvm_s390_handle_vsie()
1430 vsie_page = get_vsie_page(vcpu->kvm, scb_addr); in kvm_s390_handle_vsie()
1434 /* double use of sie control block - simply do nothing */ in kvm_s390_handle_vsie()
1435 return 0; in kvm_s390_handle_vsie()
1455 put_vsie_page(vcpu->kvm, vsie_page); in kvm_s390_handle_vsie()
1457 return rc < 0 ? rc : 0; in kvm_s390_handle_vsie()
1463 mutex_init(&kvm->arch.vsie.mutex); in kvm_s390_vsie_init()
1464 INIT_RADIX_TREE(&kvm->arch.vsie.addr_to_page, GFP_KERNEL_ACCOUNT); in kvm_s390_vsie_init()
1474 mutex_lock(&kvm->arch.vsie.mutex); in kvm_s390_vsie_destroy()
1475 for (i = 0; i < kvm->arch.vsie.page_count; i++) { in kvm_s390_vsie_destroy()
1476 page = kvm->arch.vsie.pages[i]; in kvm_s390_vsie_destroy()
1477 kvm->arch.vsie.pages[i] = NULL; in kvm_s390_vsie_destroy()
1481 if (page->index != ULONG_MAX) in kvm_s390_vsie_destroy()
1482 radix_tree_delete(&kvm->arch.vsie.addr_to_page, in kvm_s390_vsie_destroy()
1483 page->index >> 9); in kvm_s390_vsie_destroy()
1486 kvm->arch.vsie.page_count = 0; in kvm_s390_vsie_destroy()
1487 mutex_unlock(&kvm->arch.vsie.mutex); in kvm_s390_vsie_destroy()
1492 struct kvm_s390_sie_block *scb = READ_ONCE(vcpu->arch.vsie_block); in kvm_s390_vsie_kick()
1499 atomic_or(PROG_BLOCK_SIE, &scb->prog20); in kvm_s390_vsie_kick()
1500 if (scb->prog0c & PROG_IN_SIE) in kvm_s390_vsie_kick()
1501 atomic_or(CPUSTAT_STOP_INT, &scb->cpuflags); in kvm_s390_vsie_kick()