Lines Matching +full:sc +full:- +full:partitions
1 // SPDX-License-Identifier: GPL-2.0-only
9 * Kevin Wolf <mail@kevin-wolf.de>
32 #include <linux/page-flags.h>
50 #include <asm/ppc-opcode.h>
51 #include <asm/asm-prototypes.h>
73 #include <asm/pnv-pci.h>
108 MODULE_PARM_DESC(dynamic_mt_modes, "Set of allowed dynamic micro-threading modes: 0 (= none), 2, 4,…
170 vcpu = READ_ONCE(vc->runnable_threads[i]); in next_runnable_thread()
181 for (i = -1; (vcpu = next_runnable_thread(vc, &i)); )
215 if (paca_ptrs[cpu]->kvm_hstate.xics_phys) { in kvmppc_ipi_thread()
241 ++vcpu->stat.generic.halt_wakeup; in kvmppc_fast_vcpu_kick_hv()
243 cpu = READ_ONCE(vcpu->arch.thread_cpu); in kvmppc_fast_vcpu_kick_hv()
248 cpu = vcpu->cpu; in kvmppc_fast_vcpu_kick_hv()
267 * a vcore using vc->stolen_tb, and the stolen time when the vcpu
281 * updates to vc->stolen_tb are protected by the vcore->stoltb_lock
299 spin_lock_irqsave(&vc->stoltb_lock, flags); in kvmppc_core_start_stolen()
300 vc->preempt_tb = tb; in kvmppc_core_start_stolen()
301 spin_unlock_irqrestore(&vc->stoltb_lock, flags); in kvmppc_core_start_stolen()
310 spin_lock_irqsave(&vc->stoltb_lock, flags); in kvmppc_core_end_stolen()
311 if (vc->preempt_tb != TB_NIL) { in kvmppc_core_end_stolen()
312 vc->stolen_tb += tb - vc->preempt_tb; in kvmppc_core_end_stolen()
313 vc->preempt_tb = TB_NIL; in kvmppc_core_end_stolen()
315 spin_unlock_irqrestore(&vc->stoltb_lock, flags); in kvmppc_core_end_stolen()
320 struct kvmppc_vcore *vc = vcpu->arch.vcore; in kvmppc_core_vcpu_load_hv()
325 if (vcpu->arch.busy_preempt != TB_NIL) { in kvmppc_core_vcpu_load_hv()
326 WARN_ON_ONCE(vcpu->arch.state != KVMPPC_VCPU_BUSY_IN_HOST); in kvmppc_core_vcpu_load_hv()
327 vc->stolen_tb += mftb() - vcpu->arch.busy_preempt; in kvmppc_core_vcpu_load_hv()
328 vcpu->arch.busy_preempt = TB_NIL; in kvmppc_core_vcpu_load_hv()
336 * We can test vc->runner without taking the vcore lock, in kvmppc_core_vcpu_load_hv()
337 * because only this task ever sets vc->runner to this in kvmppc_core_vcpu_load_hv()
341 if (vc->runner == vcpu && vc->vcore_state >= VCORE_SLEEPING) in kvmppc_core_vcpu_load_hv()
344 spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags); in kvmppc_core_vcpu_load_hv()
345 if (vcpu->arch.state == KVMPPC_VCPU_BUSY_IN_HOST && in kvmppc_core_vcpu_load_hv()
346 vcpu->arch.busy_preempt != TB_NIL) { in kvmppc_core_vcpu_load_hv()
347 vcpu->arch.busy_stolen += now - vcpu->arch.busy_preempt; in kvmppc_core_vcpu_load_hv()
348 vcpu->arch.busy_preempt = TB_NIL; in kvmppc_core_vcpu_load_hv()
350 spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags); in kvmppc_core_vcpu_load_hv()
355 struct kvmppc_vcore *vc = vcpu->arch.vcore; in kvmppc_core_vcpu_put_hv()
364 WARN_ON_ONCE(vcpu->arch.state == KVMPPC_VCPU_RUNNABLE); in kvmppc_core_vcpu_put_hv()
370 vcpu->arch.state == KVMPPC_VCPU_BUSY_IN_HOST) in kvmppc_core_vcpu_put_hv()
371 vcpu->arch.busy_preempt = mftb(); in kvmppc_core_vcpu_put_hv()
377 if (vc->runner == vcpu && vc->vcore_state >= VCORE_SLEEPING) in kvmppc_core_vcpu_put_hv()
380 spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags); in kvmppc_core_vcpu_put_hv()
381 if (vcpu->arch.state == KVMPPC_VCPU_BUSY_IN_HOST) in kvmppc_core_vcpu_put_hv()
382 vcpu->arch.busy_preempt = now; in kvmppc_core_vcpu_put_hv()
383 spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags); in kvmppc_core_vcpu_put_hv()
388 vcpu->arch.pvr = pvr; in kvmppc_set_pvr_hv()
415 struct kvmppc_vcore *vc = vcpu->arch.vcore; in kvmppc_set_arch_compat()
450 return -EINVAL; in kvmppc_set_arch_compat()
456 return -EINVAL; in kvmppc_set_arch_compat()
466 return -EINVAL; in kvmppc_set_arch_compat()
469 spin_lock(&vc->lock); in kvmppc_set_arch_compat()
470 vc->arch_compat = arch_compat; in kvmppc_set_arch_compat()
476 vc->pcr = (host_pcr_bit - guest_pcr_bit) | PCR_MASK; in kvmppc_set_arch_compat()
477 spin_unlock(&vc->lock); in kvmppc_set_arch_compat()
486 pr_err("vcpu %p (%d):\n", vcpu, vcpu->vcpu_id); in kvmppc_dump_regs()
488 vcpu->arch.regs.nip, vcpu->arch.shregs.msr, vcpu->arch.trap); in kvmppc_dump_regs()
494 vcpu->arch.regs.ctr, vcpu->arch.regs.link); in kvmppc_dump_regs()
496 vcpu->arch.shregs.srr0, vcpu->arch.shregs.srr1); in kvmppc_dump_regs()
498 vcpu->arch.shregs.sprg0, vcpu->arch.shregs.sprg1); in kvmppc_dump_regs()
500 vcpu->arch.shregs.sprg2, vcpu->arch.shregs.sprg3); in kvmppc_dump_regs()
502 vcpu->arch.regs.ccr, vcpu->arch.regs.xer, vcpu->arch.shregs.dsisr); in kvmppc_dump_regs()
503 pr_err("dar = %.16llx\n", vcpu->arch.shregs.dar); in kvmppc_dump_regs()
505 vcpu->arch.fault_dar, vcpu->arch.fault_dsisr); in kvmppc_dump_regs()
506 pr_err("SLB (%d entries):\n", vcpu->arch.slb_max); in kvmppc_dump_regs()
507 for (r = 0; r < vcpu->arch.slb_max; ++r) in kvmppc_dump_regs()
509 vcpu->arch.slb[r].orige, vcpu->arch.slb[r].origv); in kvmppc_dump_regs()
511 vcpu->arch.vcore->lpcr, vcpu->kvm->arch.sdr1, in kvmppc_dump_regs()
512 vcpu->arch.last_inst); in kvmppc_dump_regs()
522 vpa->__old_status |= LPPACA_OLD_SHARED_PROC; in init_vpa()
523 vpa->yield_count = cpu_to_be32(1); in init_vpa()
530 if (addr & (L1_CACHE_BYTES - 1)) in set_vpa()
531 return -EINVAL; in set_vpa()
532 spin_lock(&vcpu->arch.vpa_update_lock); in set_vpa()
533 if (v->next_gpa != addr || v->len != len) { in set_vpa()
534 v->next_gpa = addr; in set_vpa()
535 v->len = addr ? len : 0; in set_vpa()
536 v->update_pending = 1; in set_vpa()
538 spin_unlock(&vcpu->arch.vpa_update_lock); in set_vpa()
542 /* Length for a per-processor buffer is passed in at offset 4 in the buffer */
553 if (vpap->update_pending) in vpa_is_registered()
554 return vpap->next_gpa != 0; in vpa_is_registered()
555 return vpap->pinned_addr != NULL; in vpa_is_registered()
562 struct kvm *kvm = vcpu->kvm; in do_h_register_vpa()
577 /* Registering new area - address must be cache-line aligned */ in do_h_register_vpa()
578 if ((vpa & (L1_CACHE_BYTES - 1)) || !vpa) in do_h_register_vpa()
586 len = be16_to_cpu(((struct reg_vpa *)va)->length.hword); in do_h_register_vpa()
588 len = be32_to_cpu(((struct reg_vpa *)va)->length.word); in do_h_register_vpa()
601 spin_lock(&tvcpu->arch.vpa_update_lock); in do_h_register_vpa()
614 vpap = &tvcpu->arch.vpa; in do_h_register_vpa()
621 len -= len % sizeof(struct dtl_entry); in do_h_register_vpa()
625 if (!vpa_is_registered(&tvcpu->arch.vpa)) in do_h_register_vpa()
628 vpap = &tvcpu->arch.dtl; in do_h_register_vpa()
635 if (!vpa_is_registered(&tvcpu->arch.vpa)) in do_h_register_vpa()
638 vpap = &tvcpu->arch.slb_shadow; in do_h_register_vpa()
645 if (vpa_is_registered(&tvcpu->arch.dtl) || in do_h_register_vpa()
646 vpa_is_registered(&tvcpu->arch.slb_shadow)) in do_h_register_vpa()
649 vpap = &tvcpu->arch.vpa; in do_h_register_vpa()
654 vpap = &tvcpu->arch.dtl; in do_h_register_vpa()
659 vpap = &tvcpu->arch.slb_shadow; in do_h_register_vpa()
665 vpap->next_gpa = vpa; in do_h_register_vpa()
666 vpap->len = len; in do_h_register_vpa()
667 vpap->update_pending = 1; in do_h_register_vpa()
670 spin_unlock(&tvcpu->arch.vpa_update_lock); in do_h_register_vpa()
678 struct kvm *kvm = vcpu->kvm; in kvmppc_update_vpa()
684 * We need to pin the page pointed to by vpap->next_gpa, in kvmppc_update_vpa()
692 gpa = vpap->next_gpa; in kvmppc_update_vpa()
693 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmppc_update_vpa()
698 spin_lock(&vcpu->arch.vpa_update_lock); in kvmppc_update_vpa()
699 if (gpa == vpap->next_gpa) in kvmppc_update_vpa()
706 vpap->update_pending = 0; in kvmppc_update_vpa()
707 if (va && nb < vpap->len) { in kvmppc_update_vpa()
718 vpap->gpa = gpa; in kvmppc_update_vpa()
719 vpap->pinned_addr = va; in kvmppc_update_vpa()
720 vpap->dirty = false; in kvmppc_update_vpa()
722 vpap->pinned_end = va + vpap->len; in kvmppc_update_vpa()
727 struct kvm *kvm = vcpu->kvm; in kvmppc_update_vpas()
730 if (!(vcpu->arch.vpa.update_pending || in kvmppc_update_vpas()
731 vcpu->arch.slb_shadow.update_pending || in kvmppc_update_vpas()
732 vcpu->arch.dtl.update_pending)) in kvmppc_update_vpas()
735 spin_lock(&vcpu->arch.vpa_update_lock); in kvmppc_update_vpas()
736 if (vcpu->arch.vpa.update_pending) { in kvmppc_update_vpas()
737 kvmppc_update_vpa(vcpu, &vcpu->arch.vpa, &old_vpa); in kvmppc_update_vpas()
744 if (vcpu->arch.vpa.pinned_addr) { in kvmppc_update_vpas()
745 init_vpa(vcpu, vcpu->arch.vpa.pinned_addr); in kvmppc_update_vpas()
747 kvmhv_nestedv2_set_vpa(vcpu, __pa(vcpu->arch.vpa.pinned_addr)); in kvmppc_update_vpas()
750 if (vcpu->arch.dtl.update_pending) { in kvmppc_update_vpas()
751 kvmppc_update_vpa(vcpu, &vcpu->arch.dtl, &old_vpa); in kvmppc_update_vpas()
755 vcpu->arch.dtl_ptr = vcpu->arch.dtl.pinned_addr; in kvmppc_update_vpas()
756 vcpu->arch.dtl_index = 0; in kvmppc_update_vpas()
758 if (vcpu->arch.slb_shadow.update_pending) { in kvmppc_update_vpas()
759 kvmppc_update_vpa(vcpu, &vcpu->arch.slb_shadow, &old_vpa); in kvmppc_update_vpas()
765 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmppc_update_vpas()
779 spin_lock_irqsave(&vc->stoltb_lock, flags); in vcore_stolen_time()
780 p = vc->stolen_tb; in vcore_stolen_time()
781 if (vc->vcore_state != VCORE_INACTIVE && in vcore_stolen_time()
782 vc->preempt_tb != TB_NIL) in vcore_stolen_time()
783 p += now - vc->preempt_tb; in vcore_stolen_time()
784 spin_unlock_irqrestore(&vc->stoltb_lock, flags); in vcore_stolen_time()
795 dt = vcpu->arch.dtl_ptr; in __kvmppc_create_dtl_entry()
800 dt->dispatch_reason = 7; in __kvmppc_create_dtl_entry()
801 dt->preempt_reason = 0; in __kvmppc_create_dtl_entry()
802 dt->processor_id = cpu_to_be16(pcpu + vcpu->arch.ptid); in __kvmppc_create_dtl_entry()
803 dt->enqueue_to_dispatch_time = cpu_to_be32(stolen); in __kvmppc_create_dtl_entry()
804 dt->ready_to_enqueue_time = 0; in __kvmppc_create_dtl_entry()
805 dt->waiting_to_ready_time = 0; in __kvmppc_create_dtl_entry()
806 dt->timebase = cpu_to_be64(now); in __kvmppc_create_dtl_entry()
807 dt->fault_addr = 0; in __kvmppc_create_dtl_entry()
808 dt->srr0 = cpu_to_be64(kvmppc_get_pc(vcpu)); in __kvmppc_create_dtl_entry()
809 dt->srr1 = cpu_to_be64(vcpu->arch.shregs.msr); in __kvmppc_create_dtl_entry()
812 if (dt == vcpu->arch.dtl.pinned_end) in __kvmppc_create_dtl_entry()
813 dt = vcpu->arch.dtl.pinned_addr; in __kvmppc_create_dtl_entry()
814 vcpu->arch.dtl_ptr = dt; in __kvmppc_create_dtl_entry()
815 /* order writing *dt vs. writing vpa->dtl_idx */ in __kvmppc_create_dtl_entry()
817 vpa->dtl_idx = cpu_to_be64(++vcpu->arch.dtl_index); in __kvmppc_create_dtl_entry()
819 /* vcpu->arch.dtl.dirty is set by the caller */ in __kvmppc_create_dtl_entry()
831 vpa = vcpu->arch.vpa.pinned_addr; in kvmppc_update_vpa_dispatch()
838 stolen = core_stolen - vcpu->arch.stolen_logged; in kvmppc_update_vpa_dispatch()
839 vcpu->arch.stolen_logged = core_stolen; in kvmppc_update_vpa_dispatch()
840 spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags); in kvmppc_update_vpa_dispatch()
841 stolen += vcpu->arch.busy_stolen; in kvmppc_update_vpa_dispatch()
842 vcpu->arch.busy_stolen = 0; in kvmppc_update_vpa_dispatch()
843 spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags); in kvmppc_update_vpa_dispatch()
845 vpa->enqueue_dispatch_tb = cpu_to_be64(be64_to_cpu(vpa->enqueue_dispatch_tb) + stolen); in kvmppc_update_vpa_dispatch()
847 __kvmppc_create_dtl_entry(vcpu, vpa, vc->pcpu, now + kvmppc_get_tb_offset(vcpu), stolen); in kvmppc_update_vpa_dispatch()
849 vcpu->arch.vpa.dirty = true; in kvmppc_update_vpa_dispatch()
860 vpa = vcpu->arch.vpa.pinned_addr; in kvmppc_update_vpa_dispatch_p9()
864 stolen = vc->stolen_tb; in kvmppc_update_vpa_dispatch_p9()
865 stolen_delta = stolen - vcpu->arch.stolen_logged; in kvmppc_update_vpa_dispatch_p9()
866 vcpu->arch.stolen_logged = stolen; in kvmppc_update_vpa_dispatch_p9()
868 vpa->enqueue_dispatch_tb = cpu_to_be64(stolen); in kvmppc_update_vpa_dispatch_p9()
870 __kvmppc_create_dtl_entry(vcpu, vpa, vc->pcpu, now, stolen_delta); in kvmppc_update_vpa_dispatch_p9()
872 vcpu->arch.vpa.dirty = true; in kvmppc_update_vpa_dispatch_p9()
881 if (vcpu->arch.doorbell_request) in kvmppc_doorbell_pending()
886 * Ensure that the read of vcore->dpdes comes after the read in kvmppc_doorbell_pending()
887 * of vcpu->doorbell_request. This barrier matches the in kvmppc_doorbell_pending()
891 vc = vcpu->arch.vcore; in kvmppc_doorbell_pending()
892 thr = vcpu->vcpu_id - vc->first_vcpuid; in kvmppc_doorbell_pending()
893 return !!(vc->dpdes & (1 << thr)); in kvmppc_doorbell_pending()
942 if (!vcpu->kvm->arch.dawr1_enabled) in kvmppc_h_set_mode()
965 /* Copy guest memory in place - must reside within a single memslot */
977 return -EFAULT; in kvmppc_copy_guest()
978 if ((from + len) >= ((from_memslot->base_gfn + from_memslot->npages) in kvmppc_copy_guest()
980 return -EINVAL; in kvmppc_copy_guest()
983 return -EFAULT; in kvmppc_copy_guest()
984 from_addr |= (from & (PAGE_SIZE - 1)); in kvmppc_copy_guest()
989 return -EFAULT; in kvmppc_copy_guest()
990 if ((to + len) >= ((to_memslot->base_gfn + to_memslot->npages) in kvmppc_copy_guest()
992 return -EINVAL; in kvmppc_copy_guest()
995 return -EFAULT; in kvmppc_copy_guest()
996 to_addr |= (to & (PAGE_SIZE - 1)); in kvmppc_copy_guest()
1002 return -EFAULT; in kvmppc_copy_guest()
1011 u64 pg_mask = SZ_4K - 1; in kvmppc_h_page_init()
1025 ret = kvmppc_copy_guest(vcpu->kvm, dest, src, pg_sz); in kvmppc_h_page_init()
1029 ret = kvm_clear_guest(vcpu->kvm, dest, pg_sz); in kvmppc_h_page_init()
1041 struct kvmppc_vcore *vcore = target->arch.vcore; in kvm_arch_vcpu_yield_to()
1055 spin_lock(&vcore->lock); in kvm_arch_vcpu_yield_to()
1056 if (target->arch.state == KVMPPC_VCPU_RUNNABLE && in kvm_arch_vcpu_yield_to()
1057 vcore->vcore_state != VCORE_INACTIVE && in kvm_arch_vcpu_yield_to()
1058 vcore->runner) in kvm_arch_vcpu_yield_to()
1059 target = vcore->runner; in kvm_arch_vcpu_yield_to()
1060 spin_unlock(&vcore->lock); in kvm_arch_vcpu_yield_to()
1071 spin_lock(&vcpu->arch.vpa_update_lock); in kvmppc_get_yield_count()
1072 lppaca = (struct lppaca *)vcpu->arch.vpa.pinned_addr; in kvmppc_get_yield_count()
1074 yield_count = be32_to_cpu(lppaca->yield_count); in kvmppc_get_yield_count()
1075 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmppc_get_yield_count()
1082 * Handles only nested process-scoped invalidation requests in L0.
1090 * The partition-scoped invalidations aren't handled here in L0. in kvmppc_nested_h_rpt_invalidate()
1100 do_h_rpt_invalidate_prt(pid, vcpu->arch.nested->shadow_lpid, in kvmppc_nested_h_rpt_invalidate()
1112 if (!kvm_is_radix(vcpu->kvm)) in kvmppc_h_rpt_invalidate()
1119 * Partition-scoped invalidation for nested guests. in kvmppc_h_rpt_invalidate()
1122 if (!nesting_enabled(vcpu->kvm)) in kvmppc_h_rpt_invalidate()
1134 * Process-scoped invalidation for L1 guests. in kvmppc_h_rpt_invalidate()
1136 do_h_rpt_invalidate_prt(id, vcpu->kvm->arch.lpid, in kvmppc_h_rpt_invalidate()
1143 struct kvm *kvm = vcpu->kvm; in kvmppc_pseries_do_hcall()
1151 !test_bit(req/4, vcpu->kvm->arch.enabled_hcalls)) in kvmppc_pseries_do_hcall()
1210 tvcpu->arch.prodded = 1; in kvmppc_pseries_do_hcall()
1212 if (tvcpu->arch.ceded) in kvmppc_pseries_do_hcall()
1217 if (target == -1) in kvmppc_pseries_do_hcall()
1235 if (list_empty(&kvm->arch.rtas_tokens)) in kvmppc_pseries_do_hcall()
1238 idx = srcu_read_lock(&kvm->srcu); in kvmppc_pseries_do_hcall()
1240 srcu_read_unlock(&kvm->srcu, idx); in kvmppc_pseries_do_hcall()
1242 if (rc == -ENOENT) in kvmppc_pseries_do_hcall()
1349 vcpu->arch.hcall_needed = 0; in kvmppc_pseries_do_hcall()
1350 return -EINTR; in kvmppc_pseries_do_hcall()
1353 vcpu->arch.hcall_needed = 0; in kvmppc_pseries_do_hcall()
1403 * Instead the kvm->arch.secure_guest flag is checked inside in kvmppc_pseries_do_hcall()
1414 vcpu->arch.hcall_needed = 0; in kvmppc_pseries_do_hcall()
1419 * Handle H_CEDE in the P9 path where we don't call the real-mode hcall
1428 vcpu->arch.ceded = 1; in kvmppc_cede()
1430 if (vcpu->arch.prodded) { in kvmppc_cede()
1431 vcpu->arch.prodded = 0; in kvmppc_cede()
1433 vcpu->arch.ceded = 0; in kvmppc_cede()
1466 /* See if it's in the real-mode table */ in kvmppc_hcall_impl_hv()
1484 vcpu->run->exit_reason = KVM_EXIT_DEBUG; in kvmppc_emulate_debug_inst()
1485 vcpu->run->debug.arch.address = kvmppc_get_pc(vcpu); in kvmppc_emulate_debug_inst()
1504 nthreads = vcpu->kvm->arch.emul_smt_mode; in kvmppc_read_dpdes()
1506 cpu = vcpu->vcpu_id & ~(nthreads - 1); in kvmppc_read_dpdes()
1508 v = kvmppc_find_vcpu(vcpu->kvm, cpu); in kvmppc_read_dpdes()
1514 * which will update its vcore->dpdes value. in kvmppc_read_dpdes()
1516 pcpu = READ_ONCE(v->cpu); in kvmppc_read_dpdes()
1526 * On POWER9, emulate doorbell-related instructions in order to
1527 * give the guest the illusion of running on a multi-threaded core.
1535 struct kvm *kvm = vcpu->kvm; in kvmppc_emulate_doorbell_instr()
1545 thr = vcpu->vcpu_id & (kvm->arch.emul_smt_mode - 1); in kvmppc_emulate_doorbell_instr()
1552 if (arg >= kvm->arch.emul_smt_mode) in kvmppc_emulate_doorbell_instr()
1554 tvcpu = kvmppc_find_vcpu(kvm, vcpu->vcpu_id - thr + arg); in kvmppc_emulate_doorbell_instr()
1557 if (!tvcpu->arch.doorbell_request) { in kvmppc_emulate_doorbell_instr()
1558 tvcpu->arch.doorbell_request = 1; in kvmppc_emulate_doorbell_instr()
1566 vcpu->arch.vcore->dpdes = 0; in kvmppc_emulate_doorbell_instr()
1567 vcpu->arch.doorbell_request = 0; in kvmppc_emulate_doorbell_instr()
1598 if (!(vcpu->arch.hfscr_permitted & HFSCR_PM)) in kvmppc_pmu_unavailable()
1608 if (!(vcpu->arch.hfscr_permitted & HFSCR_EBB)) in kvmppc_ebb_unavailable()
1618 if (!(vcpu->arch.hfscr_permitted & HFSCR_TM)) in kvmppc_tm_unavailable()
1629 struct kvm_run *run = vcpu->run; in kvmppc_handle_exit_hv()
1632 vcpu->stat.sum_exits++; in kvmppc_handle_exit_hv()
1637 * setting paca->kvm_hstate.in_guest to KVM_GUEST_MODE_GUEST_HV in kvmppc_handle_exit_hv()
1645 vcpu->arch.trap, kvmppc_get_pc(vcpu), in kvmppc_handle_exit_hv()
1646 vcpu->arch.shregs.msr); in kvmppc_handle_exit_hv()
1648 run->exit_reason = KVM_EXIT_INTERNAL_ERROR; in kvmppc_handle_exit_hv()
1649 run->hw.hardware_exit_reason = vcpu->arch.trap; in kvmppc_handle_exit_hv()
1652 run->exit_reason = KVM_EXIT_UNKNOWN; in kvmppc_handle_exit_hv()
1653 run->ready_for_interrupt_injection = 1; in kvmppc_handle_exit_hv()
1654 switch (vcpu->arch.trap) { in kvmppc_handle_exit_hv()
1655 /* We're good on these - the host merely wanted to get our attention */ in kvmppc_handle_exit_hv()
1658 vcpu->arch.trap = BOOK3S_INTERRUPT_HV_DECREMENTER; in kvmppc_handle_exit_hv()
1661 vcpu->stat.dec_exits++; in kvmppc_handle_exit_hv()
1667 vcpu->stat.ext_intr_exits++; in kvmppc_handle_exit_hv()
1684 machine_check_print_event_info(&vcpu->arch.mce_evt,false, true); in kvmppc_handle_exit_hv()
1692 if (!vcpu->kvm->arch.fwnmi_enabled) { in kvmppc_handle_exit_hv()
1701 run->exit_reason = KVM_EXIT_NMI; in kvmppc_handle_exit_hv()
1702 run->hw.hardware_exit_reason = vcpu->arch.trap; in kvmppc_handle_exit_hv()
1703 /* Clear out the old NMI status from run->flags */ in kvmppc_handle_exit_hv()
1704 run->flags &= ~KVM_RUN_PPC_NMI_DISP_MASK; in kvmppc_handle_exit_hv()
1706 if (vcpu->arch.mce_evt.disposition == MCE_DISPOSITION_RECOVERED) in kvmppc_handle_exit_hv()
1707 run->flags |= KVM_RUN_PPC_NMI_DISP_FULLY_RECOV; in kvmppc_handle_exit_hv()
1709 run->flags |= KVM_RUN_PPC_NMI_DISP_NOT_RECOV; in kvmppc_handle_exit_hv()
1735 * Guest userspace executed sc 1. This can only be in kvmppc_handle_exit_hv()
1743 * to the guest kernel as a sc interrupt. in kvmppc_handle_exit_hv()
1760 * hcall - gather args and set exit_reason. This will next be in kvmppc_handle_exit_hv()
1764 run->papr_hcall.nr = kvmppc_get_gpr(vcpu, 3); in kvmppc_handle_exit_hv()
1766 run->papr_hcall.args[i] = kvmppc_get_gpr(vcpu, 4 + i); in kvmppc_handle_exit_hv()
1767 run->exit_reason = KVM_EXIT_PAPR_HCALL; in kvmppc_handle_exit_hv()
1768 vcpu->arch.hcall_needed = 1; in kvmppc_handle_exit_hv()
1787 unlikely(vcpu->arch.fault_dsisr == HDSISR_CANARY)) { in kvmppc_handle_exit_hv()
1792 if (kvm_is_radix(vcpu->kvm) || !cpu_has_feature(CPU_FTR_ARCH_300)) { in kvmppc_handle_exit_hv()
1794 * Radix doesn't require anything, and pre-ISAv3.0 hash in kvmppc_handle_exit_hv()
1803 if (!(vcpu->arch.fault_dsisr & (DSISR_NOHPTE | DSISR_PROTFAULT))) { in kvmppc_handle_exit_hv()
1806 vcpu->arch.fault_dar, vcpu->arch.fault_dsisr); in kvmppc_handle_exit_hv()
1812 vsid = vcpu->kvm->arch.vrma_slb_v; in kvmppc_handle_exit_hv()
1814 vsid = vcpu->arch.fault_gpa; in kvmppc_handle_exit_hv()
1816 err = kvmppc_hpte_hv_fault(vcpu, vcpu->arch.fault_dar, in kvmppc_handle_exit_hv()
1817 vsid, vcpu->arch.fault_dsisr, true); in kvmppc_handle_exit_hv()
1820 } else if (err == -1 || err == -2) { in kvmppc_handle_exit_hv()
1825 vcpu->arch.fault_dar, err); in kvmppc_handle_exit_hv()
1834 vcpu->arch.fault_dar = kvmppc_get_pc(vcpu); in kvmppc_handle_exit_hv()
1835 vcpu->arch.fault_dsisr = __kvmppc_get_msr_hv(vcpu) & in kvmppc_handle_exit_hv()
1837 if (kvm_is_radix(vcpu->kvm) || !cpu_has_feature(CPU_FTR_ARCH_300)) { in kvmppc_handle_exit_hv()
1839 * Radix doesn't require anything, and pre-ISAv3.0 hash in kvmppc_handle_exit_hv()
1845 vcpu->arch.fault_dsisr |= DSISR_ISSTORE; in kvmppc_handle_exit_hv()
1850 if (!(vcpu->arch.fault_dsisr & SRR1_ISI_NOPT)) { in kvmppc_handle_exit_hv()
1852 vcpu->arch.fault_dsisr | in kvmppc_handle_exit_hv()
1859 vsid = vcpu->kvm->arch.vrma_slb_v; in kvmppc_handle_exit_hv()
1861 vsid = vcpu->arch.fault_gpa; in kvmppc_handle_exit_hv()
1863 err = kvmppc_hpte_hv_fault(vcpu, vcpu->arch.fault_dar, in kvmppc_handle_exit_hv()
1864 vsid, vcpu->arch.fault_dsisr, false); in kvmppc_handle_exit_hv()
1867 } else if (err == -1) { in kvmppc_handle_exit_hv()
1885 if (vcpu->arch.emul_inst != KVM_INST_FETCH_FAILED) in kvmppc_handle_exit_hv()
1886 vcpu->arch.last_inst = kvmppc_need_byteswap(vcpu) ? in kvmppc_handle_exit_hv()
1887 swab32(vcpu->arch.emul_inst) : in kvmppc_handle_exit_hv()
1888 vcpu->arch.emul_inst; in kvmppc_handle_exit_hv()
1889 if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP) { in kvmppc_handle_exit_hv()
1901 * This occurs for various TM-related instructions that in kvmppc_handle_exit_hv()
1903 * handled the cases where the guest was in real-suspend in kvmppc_handle_exit_hv()
1907 if (r != -1) in kvmppc_handle_exit_hv()
1947 vcpu->arch.trap, kvmppc_get_pc(vcpu), in kvmppc_handle_exit_hv()
1949 run->hw.hardware_exit_reason = vcpu->arch.trap; in kvmppc_handle_exit_hv()
1962 vcpu->stat.sum_exits++; in kvmppc_handle_nested_exit()
1967 * setting paca->kvm_hstate.in_guest to KVM_GUEST_MODE_GUEST_HV in kvmppc_handle_nested_exit()
1975 vcpu->arch.trap, kvmppc_get_pc(vcpu), in kvmppc_handle_nested_exit()
1980 switch (vcpu->arch.trap) { in kvmppc_handle_nested_exit()
1981 /* We're good on these - the host merely wanted to get our attention */ in kvmppc_handle_nested_exit()
1983 vcpu->stat.dec_exits++; in kvmppc_handle_nested_exit()
1987 vcpu->stat.ext_intr_exits++; in kvmppc_handle_nested_exit()
1992 vcpu->stat.ext_intr_exits++; in kvmppc_handle_nested_exit()
1997 vcpu->arch.trap = BOOK3S_INTERRUPT_HV_DECREMENTER; in kvmppc_handle_nested_exit()
1998 vcpu->stat.dec_exits++; in kvmppc_handle_nested_exit()
2015 machine_check_print_event_info(&vcpu->arch.mce_evt, false, true); in kvmppc_handle_nested_exit()
2025 srcu_idx = srcu_read_lock(&vcpu->kvm->srcu); in kvmppc_handle_nested_exit()
2027 srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx); in kvmppc_handle_nested_exit()
2030 vcpu->arch.fault_dar = kvmppc_get_pc(vcpu); in kvmppc_handle_nested_exit()
2031 vcpu->arch.fault_dsisr = kvmppc_get_msr(vcpu) & in kvmppc_handle_nested_exit()
2034 vcpu->arch.fault_dsisr |= DSISR_ISSTORE; in kvmppc_handle_nested_exit()
2035 srcu_idx = srcu_read_lock(&vcpu->kvm->srcu); in kvmppc_handle_nested_exit()
2037 srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx); in kvmppc_handle_nested_exit()
2043 * This occurs for various TM-related instructions that in kvmppc_handle_nested_exit()
2045 * handled the cases where the guest was in real-suspend in kvmppc_handle_nested_exit()
2049 if (r != -1) in kvmppc_handle_nested_exit()
2055 u64 cause = vcpu->arch.hfscr >> 56; in kvmppc_handle_nested_exit()
2063 if (!(vcpu->arch.hfscr_permitted & (1UL << cause)) || in kvmppc_handle_nested_exit()
2064 (vcpu->arch.nested_hfscr & (1UL << cause))) { in kvmppc_handle_nested_exit()
2066 vcpu->arch.trap = BOOK3S_INTERRUPT_H_EMUL_ASSIST; in kvmppc_handle_nested_exit()
2073 vcpu->arch.emul_inst = ppc_inst_val(pinst); in kvmppc_handle_nested_exit()
2086 vcpu->arch.trap = 0; in kvmppc_handle_nested_exit()
2097 * guests for process-scoped invalidations when in kvmppc_handle_nested_exit()
2122 sregs->pvr = vcpu->arch.pvr; in kvm_arch_vcpu_ioctl_get_sregs_hv()
2123 for (i = 0; i < vcpu->arch.slb_max; i++) { in kvm_arch_vcpu_ioctl_get_sregs_hv()
2124 sregs->u.s.ppc64.slb[i].slbe = vcpu->arch.slb[i].orige; in kvm_arch_vcpu_ioctl_get_sregs_hv()
2125 sregs->u.s.ppc64.slb[i].slbv = vcpu->arch.slb[i].origv; in kvm_arch_vcpu_ioctl_get_sregs_hv()
2137 if (sregs->pvr != vcpu->arch.pvr) in kvm_arch_vcpu_ioctl_set_sregs_hv()
2138 return -EINVAL; in kvm_arch_vcpu_ioctl_set_sregs_hv()
2141 for (i = 0; i < vcpu->arch.slb_nr; i++) { in kvm_arch_vcpu_ioctl_set_sregs_hv()
2142 if (sregs->u.s.ppc64.slb[i].slbe & SLB_ESID_V) { in kvm_arch_vcpu_ioctl_set_sregs_hv()
2143 vcpu->arch.slb[j].orige = sregs->u.s.ppc64.slb[i].slbe; in kvm_arch_vcpu_ioctl_set_sregs_hv()
2144 vcpu->arch.slb[j].origv = sregs->u.s.ppc64.slb[i].slbv; in kvm_arch_vcpu_ioctl_set_sregs_hv()
2148 vcpu->arch.slb_max = j; in kvm_arch_vcpu_ioctl_set_sregs_hv()
2199 struct kvm *kvm = vcpu->kvm; in kvmppc_set_lpcr()
2200 struct kvmppc_vcore *vc = vcpu->arch.vcore; in kvmppc_set_lpcr()
2203 spin_lock(&vc->lock); in kvmppc_set_lpcr()
2207 * DPFD (default prefetch depth), ILE (interrupt little-endian), in kvmppc_set_lpcr()
2214 /* Broken 32-bit version of LPCR must not clear top bits */ in kvmppc_set_lpcr()
2219 (vc->lpcr & ~mask) | (new_lpcr & mask)); in kvmppc_set_lpcr()
2222 * If ILE (interrupt little-endian) has changed, update the in kvmppc_set_lpcr()
2225 if ((new_lpcr & LPCR_ILE) != (vc->lpcr & LPCR_ILE)) { in kvmppc_set_lpcr()
2230 if (vcpu->arch.vcore != vc) in kvmppc_set_lpcr()
2233 vcpu->arch.intr_msr |= MSR_LE; in kvmppc_set_lpcr()
2235 vcpu->arch.intr_msr &= ~MSR_LE; in kvmppc_set_lpcr()
2239 vc->lpcr = new_lpcr; in kvmppc_set_lpcr()
2242 spin_unlock(&vc->lock); in kvmppc_set_lpcr()
2259 *val = get_reg_val(id, vcpu->arch.dabr); in kvmppc_get_one_reg_hv()
2262 *val = get_reg_val(id, vcpu->arch.dabrx); in kvmppc_get_one_reg_hv()
2280 i = id - KVM_REG_PPC_MMCR0; in kvmppc_get_one_reg_hv()
2290 *val = get_reg_val(id, vcpu->arch.mmcrs); in kvmppc_get_one_reg_hv()
2296 i = id - KVM_REG_PPC_PMC1; in kvmppc_get_one_reg_hv()
2300 i = id - KVM_REG_PPC_SPMC1; in kvmppc_get_one_reg_hv()
2301 *val = get_reg_val(id, vcpu->arch.spmc[i]); in kvmppc_get_one_reg_hv()
2328 * either vcore->dpdes or doorbell_request. in kvmppc_get_one_reg_hv()
2332 *val = get_reg_val(id, vcpu->arch.doorbell_request); in kvmppc_get_one_reg_hv()
2334 *val = get_reg_val(id, vcpu->arch.vcore->dpdes); in kvmppc_get_one_reg_hv()
2355 *val = get_reg_val(id, vcpu->arch.csigr); in kvmppc_get_one_reg_hv()
2358 *val = get_reg_val(id, vcpu->arch.tacr); in kvmppc_get_one_reg_hv()
2361 *val = get_reg_val(id, vcpu->arch.tcscr); in kvmppc_get_one_reg_hv()
2367 *val = get_reg_val(id, vcpu->arch.acop); in kvmppc_get_one_reg_hv()
2373 *val = get_reg_val(id, vcpu->arch.tid); in kvmppc_get_one_reg_hv()
2376 *val = get_reg_val(id, vcpu->arch.psscr); in kvmppc_get_one_reg_hv()
2379 spin_lock(&vcpu->arch.vpa_update_lock); in kvmppc_get_one_reg_hv()
2380 *val = get_reg_val(id, vcpu->arch.vpa.next_gpa); in kvmppc_get_one_reg_hv()
2381 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmppc_get_one_reg_hv()
2384 spin_lock(&vcpu->arch.vpa_update_lock); in kvmppc_get_one_reg_hv()
2385 val->vpaval.addr = vcpu->arch.slb_shadow.next_gpa; in kvmppc_get_one_reg_hv()
2386 val->vpaval.length = vcpu->arch.slb_shadow.len; in kvmppc_get_one_reg_hv()
2387 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmppc_get_one_reg_hv()
2390 spin_lock(&vcpu->arch.vpa_update_lock); in kvmppc_get_one_reg_hv()
2391 val->vpaval.addr = vcpu->arch.dtl.next_gpa; in kvmppc_get_one_reg_hv()
2392 val->vpaval.length = vcpu->arch.dtl.len; in kvmppc_get_one_reg_hv()
2393 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmppc_get_one_reg_hv()
2407 *val = get_reg_val(id, vcpu->arch.tfhar); in kvmppc_get_one_reg_hv()
2410 *val = get_reg_val(id, vcpu->arch.tfiar); in kvmppc_get_one_reg_hv()
2413 *val = get_reg_val(id, vcpu->arch.texasr); in kvmppc_get_one_reg_hv()
2416 i = id - KVM_REG_PPC_TM_GPR0; in kvmppc_get_one_reg_hv()
2417 *val = get_reg_val(id, vcpu->arch.gpr_tm[i]); in kvmppc_get_one_reg_hv()
2422 i = id - KVM_REG_PPC_TM_VSR0; in kvmppc_get_one_reg_hv()
2425 val->vsxval[j] = vcpu->arch.fp_tm.fpr[i][j]; in kvmppc_get_one_reg_hv()
2428 val->vval = vcpu->arch.vr_tm.vr[i-32]; in kvmppc_get_one_reg_hv()
2430 r = -ENXIO; in kvmppc_get_one_reg_hv()
2435 *val = get_reg_val(id, vcpu->arch.cr_tm); in kvmppc_get_one_reg_hv()
2438 *val = get_reg_val(id, vcpu->arch.xer_tm); in kvmppc_get_one_reg_hv()
2441 *val = get_reg_val(id, vcpu->arch.lr_tm); in kvmppc_get_one_reg_hv()
2444 *val = get_reg_val(id, vcpu->arch.ctr_tm); in kvmppc_get_one_reg_hv()
2447 *val = get_reg_val(id, vcpu->arch.fp_tm.fpscr); in kvmppc_get_one_reg_hv()
2450 *val = get_reg_val(id, vcpu->arch.amr_tm); in kvmppc_get_one_reg_hv()
2453 *val = get_reg_val(id, vcpu->arch.ppr_tm); in kvmppc_get_one_reg_hv()
2456 *val = get_reg_val(id, vcpu->arch.vrsave_tm); in kvmppc_get_one_reg_hv()
2460 *val = get_reg_val(id, vcpu->arch.vr_tm.vscr.u[3]); in kvmppc_get_one_reg_hv()
2462 r = -ENXIO; in kvmppc_get_one_reg_hv()
2465 *val = get_reg_val(id, vcpu->arch.dscr_tm); in kvmppc_get_one_reg_hv()
2468 *val = get_reg_val(id, vcpu->arch.tar_tm); in kvmppc_get_one_reg_hv()
2478 *val = get_reg_val(id, vcpu->arch.online); in kvmppc_get_one_reg_hv()
2481 *val = get_reg_val(id, vcpu->kvm->arch.l1_ptcr); in kvmppc_get_one_reg_hv()
2487 r = -EINVAL; in kvmppc_get_one_reg_hv()
2505 r = -EINVAL; in kvmppc_set_one_reg_hv()
2508 vcpu->arch.dabr = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2511 vcpu->arch.dabrx = set_reg_val(id, *val) & ~DABRX_HYP; in kvmppc_set_one_reg_hv()
2529 i = id - KVM_REG_PPC_MMCR0; in kvmppc_set_one_reg_hv()
2539 vcpu->arch.mmcrs = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2542 *val = get_reg_val(id, vcpu->arch.mmcr[3]); in kvmppc_set_one_reg_hv()
2545 i = id - KVM_REG_PPC_PMC1; in kvmppc_set_one_reg_hv()
2549 i = id - KVM_REG_PPC_SPMC1; in kvmppc_set_one_reg_hv()
2550 vcpu->arch.spmc[i] = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2575 vcpu->arch.doorbell_request = set_reg_val(id, *val) & 1; in kvmppc_set_one_reg_hv()
2577 vcpu->arch.vcore->dpdes = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2601 vcpu->arch.csigr = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2604 vcpu->arch.tacr = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2607 vcpu->arch.tcscr = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2613 vcpu->arch.acop = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2619 vcpu->arch.tid = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2622 vcpu->arch.psscr = set_reg_val(id, *val) & PSSCR_GUEST_VIS; in kvmppc_set_one_reg_hv()
2626 r = -EINVAL; in kvmppc_set_one_reg_hv()
2627 if (!addr && (vcpu->arch.slb_shadow.next_gpa || in kvmppc_set_one_reg_hv()
2628 vcpu->arch.dtl.next_gpa)) in kvmppc_set_one_reg_hv()
2630 r = set_vpa(vcpu, &vcpu->arch.vpa, addr, sizeof(struct lppaca)); in kvmppc_set_one_reg_hv()
2633 addr = val->vpaval.addr; in kvmppc_set_one_reg_hv()
2634 len = val->vpaval.length; in kvmppc_set_one_reg_hv()
2635 r = -EINVAL; in kvmppc_set_one_reg_hv()
2636 if (addr && !vcpu->arch.vpa.next_gpa) in kvmppc_set_one_reg_hv()
2638 r = set_vpa(vcpu, &vcpu->arch.slb_shadow, addr, len); in kvmppc_set_one_reg_hv()
2641 addr = val->vpaval.addr; in kvmppc_set_one_reg_hv()
2642 len = val->vpaval.length; in kvmppc_set_one_reg_hv()
2643 r = -EINVAL; in kvmppc_set_one_reg_hv()
2645 !vcpu->arch.vpa.next_gpa)) in kvmppc_set_one_reg_hv()
2647 len -= len % sizeof(struct dtl_entry); in kvmppc_set_one_reg_hv()
2648 r = set_vpa(vcpu, &vcpu->arch.dtl, addr, len); in kvmppc_set_one_reg_hv()
2681 vcpu->arch.tfhar = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2684 vcpu->arch.tfiar = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2687 vcpu->arch.texasr = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2690 i = id - KVM_REG_PPC_TM_GPR0; in kvmppc_set_one_reg_hv()
2691 vcpu->arch.gpr_tm[i] = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2696 i = id - KVM_REG_PPC_TM_VSR0; in kvmppc_set_one_reg_hv()
2699 vcpu->arch.fp_tm.fpr[i][j] = val->vsxval[j]; in kvmppc_set_one_reg_hv()
2702 vcpu->arch.vr_tm.vr[i-32] = val->vval; in kvmppc_set_one_reg_hv()
2704 r = -ENXIO; in kvmppc_set_one_reg_hv()
2708 vcpu->arch.cr_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2711 vcpu->arch.xer_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2714 vcpu->arch.lr_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2717 vcpu->arch.ctr_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2720 vcpu->arch.fp_tm.fpscr = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2723 vcpu->arch.amr_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2726 vcpu->arch.ppr_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2729 vcpu->arch.vrsave_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2733 vcpu->arch.vr.vscr.u[3] = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2735 r = - ENXIO; in kvmppc_set_one_reg_hv()
2738 vcpu->arch.dscr_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2741 vcpu->arch.tar_tm = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2752 if (i && !vcpu->arch.online) in kvmppc_set_one_reg_hv()
2753 atomic_inc(&vcpu->arch.vcore->online_count); in kvmppc_set_one_reg_hv()
2754 else if (!i && vcpu->arch.online) in kvmppc_set_one_reg_hv()
2755 atomic_dec(&vcpu->arch.vcore->online_count); in kvmppc_set_one_reg_hv()
2756 vcpu->arch.online = i; in kvmppc_set_one_reg_hv()
2759 vcpu->kvm->arch.l1_ptcr = set_reg_val(id, *val); in kvmppc_set_one_reg_hv()
2765 r = -EINVAL; in kvmppc_set_one_reg_hv()
2773 * On POWER9, threads are independent and can be in different partitions.
2795 spin_lock_init(&vcore->lock); in kvmppc_vcore_create()
2796 spin_lock_init(&vcore->stoltb_lock); in kvmppc_vcore_create()
2797 rcuwait_init(&vcore->wait); in kvmppc_vcore_create()
2798 vcore->preempt_tb = TB_NIL; in kvmppc_vcore_create()
2799 vcore->lpcr = kvm->arch.lpcr; in kvmppc_vcore_create()
2800 vcore->first_vcpuid = id; in kvmppc_vcore_create()
2801 vcore->kvm = kvm; in kvmppc_vcore_create()
2802 INIT_LIST_HEAD(&vcore->preempt_list); in kvmppc_vcore_create()
2839 struct kvm_vcpu *vcpu = inode->i_private; in debugfs_timings_open()
2844 return -ENOMEM; in debugfs_timings_open()
2846 kvm_get_kvm(vcpu->kvm); in debugfs_timings_open()
2847 p->vcpu = vcpu; in debugfs_timings_open()
2848 file->private_data = p; in debugfs_timings_open()
2855 struct debugfs_timings_state *p = file->private_data; in debugfs_timings_release()
2857 kvm_put_kvm(p->vcpu->kvm); in debugfs_timings_release()
2865 struct debugfs_timings_state *p = file->private_data; in debugfs_timings_read()
2866 struct kvm_vcpu *vcpu = p->vcpu; in debugfs_timings_read()
2875 if (!p->buflen) { in debugfs_timings_read()
2876 s = p->buf; in debugfs_timings_read()
2877 buf_end = s + sizeof(p->buf); in debugfs_timings_read()
2885 count = acc->seqcount; in debugfs_timings_read()
2890 if (count == acc->seqcount) { in debugfs_timings_read()
2898 snprintf(s, buf_end - s, "%s: stuck\n", in debugfs_timings_read()
2901 snprintf(s, buf_end - s, in debugfs_timings_read()
2909 p->buflen = s - p->buf; in debugfs_timings_read()
2913 if (pos >= p->buflen) in debugfs_timings_read()
2915 if (len > p->buflen - pos) in debugfs_timings_read()
2916 len = p->buflen - pos; in debugfs_timings_read()
2917 n = copy_to_user(buf, p->buf + pos, len); in debugfs_timings_read()
2920 return -EFAULT; in debugfs_timings_read()
2921 len -= n; in debugfs_timings_read()
2930 return -EACCES; in debugfs_timings_write()
2966 kvm = vcpu->kvm; in kvmppc_core_vcpu_create_hv()
2967 id = vcpu->vcpu_id; in kvmppc_core_vcpu_create_hv()
2969 vcpu->arch.shared = &vcpu->arch.shregs; in kvmppc_core_vcpu_create_hv()
2976 vcpu->arch.shared_big_endian = true; in kvmppc_core_vcpu_create_hv()
2978 vcpu->arch.shared_big_endian = false; in kvmppc_core_vcpu_create_hv()
2983 err = kvmhv_nestedv2_vcpu_create(vcpu, &vcpu->arch.nestedv2_io); in kvmppc_core_vcpu_create_hv()
2997 spin_lock_init(&vcpu->arch.vpa_update_lock); in kvmppc_core_vcpu_create_hv()
2998 spin_lock_init(&vcpu->arch.tbacct_lock); in kvmppc_core_vcpu_create_hv()
2999 vcpu->arch.busy_preempt = TB_NIL; in kvmppc_core_vcpu_create_hv()
3001 vcpu->arch.intr_msr = MSR_SF | MSR_ME; in kvmppc_core_vcpu_create_hv()
3026 vcpu->arch.hfscr |= HFSCR_TM; in kvmppc_core_vcpu_create_hv()
3028 vcpu->arch.hfscr_permitted = kvmppc_get_hfscr_hv(vcpu); in kvmppc_core_vcpu_create_hv()
3031 * PM, EBB, TM are demand-faulted so start with it clear. in kvmppc_core_vcpu_create_hv()
3037 vcpu->arch.state = KVMPPC_VCPU_NOTREADY; in kvmppc_core_vcpu_create_hv()
3039 init_waitqueue_head(&vcpu->arch.cpu_run); in kvmppc_core_vcpu_create_hv()
3041 mutex_lock(&kvm->lock); in kvmppc_core_vcpu_create_hv()
3043 err = -EINVAL; in kvmppc_core_vcpu_create_hv()
3045 if (id >= (KVM_MAX_VCPUS * kvm->arch.emul_smt_mode)) { in kvmppc_core_vcpu_create_hv()
3049 BUG_ON(kvm->arch.smt_mode != 1); in kvmppc_core_vcpu_create_hv()
3053 core = id / kvm->arch.smt_mode; in kvmppc_core_vcpu_create_hv()
3056 vcore = kvm->arch.vcores[core]; in kvmppc_core_vcpu_create_hv()
3065 err = -ENOMEM; in kvmppc_core_vcpu_create_hv()
3067 id & ~(kvm->arch.smt_mode - 1)); in kvmppc_core_vcpu_create_hv()
3068 mutex_lock(&kvm->arch.mmu_setup_lock); in kvmppc_core_vcpu_create_hv()
3069 kvm->arch.vcores[core] = vcore; in kvmppc_core_vcpu_create_hv()
3070 kvm->arch.online_vcores++; in kvmppc_core_vcpu_create_hv()
3071 mutex_unlock(&kvm->arch.mmu_setup_lock); in kvmppc_core_vcpu_create_hv()
3074 mutex_unlock(&kvm->lock); in kvmppc_core_vcpu_create_hv()
3079 spin_lock(&vcore->lock); in kvmppc_core_vcpu_create_hv()
3080 ++vcore->num_threads; in kvmppc_core_vcpu_create_hv()
3081 spin_unlock(&vcore->lock); in kvmppc_core_vcpu_create_hv()
3082 vcpu->arch.vcore = vcore; in kvmppc_core_vcpu_create_hv()
3083 vcpu->arch.ptid = vcpu->vcpu_id - vcore->first_vcpuid; in kvmppc_core_vcpu_create_hv()
3084 vcpu->arch.thread_cpu = -1; in kvmppc_core_vcpu_create_hv()
3085 vcpu->arch.prev_cpu = -1; in kvmppc_core_vcpu_create_hv()
3087 vcpu->arch.cpu_type = KVM_CPU_3S_64; in kvmppc_core_vcpu_create_hv()
3100 return -EINVAL; in kvmhv_set_smt_mode()
3102 return -EINVAL; in kvmhv_set_smt_mode()
3109 return -EINVAL; in kvmhv_set_smt_mode()
3118 mutex_lock(&kvm->lock); in kvmhv_set_smt_mode()
3119 err = -EBUSY; in kvmhv_set_smt_mode()
3120 if (!kvm->arch.online_vcores) { in kvmhv_set_smt_mode()
3121 kvm->arch.smt_mode = smt_mode; in kvmhv_set_smt_mode()
3122 kvm->arch.emul_smt_mode = esmt; in kvmhv_set_smt_mode()
3125 mutex_unlock(&kvm->lock); in kvmhv_set_smt_mode()
3132 if (vpa->pinned_addr) in unpin_vpa()
3133 kvmppc_unpin_guest_page(kvm, vpa->pinned_addr, vpa->gpa, in unpin_vpa()
3134 vpa->dirty); in unpin_vpa()
3139 spin_lock(&vcpu->arch.vpa_update_lock); in kvmppc_core_vcpu_free_hv()
3140 unpin_vpa(vcpu->kvm, &vcpu->arch.dtl); in kvmppc_core_vcpu_free_hv()
3141 unpin_vpa(vcpu->kvm, &vcpu->arch.slb_shadow); in kvmppc_core_vcpu_free_hv()
3142 unpin_vpa(vcpu->kvm, &vcpu->arch.vpa); in kvmppc_core_vcpu_free_hv()
3143 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmppc_core_vcpu_free_hv()
3145 kvmhv_nestedv2_vcpu_free(vcpu, &vcpu->arch.nestedv2_io); in kvmppc_core_vcpu_free_hv()
3165 dec_nsec = tb_to_ns(kvmppc_dec_expires_host_tb(vcpu) - now); in kvmppc_set_timer()
3166 hrtimer_start(&vcpu->arch.dec_timer, dec_nsec, HRTIMER_MODE_REL); in kvmppc_set_timer()
3167 vcpu->arch.timer_running = 1; in kvmppc_set_timer()
3177 if (vcpu->arch.state != KVMPPC_VCPU_RUNNABLE) in kvmppc_remove_runnable()
3179 spin_lock_irq(&vcpu->arch.tbacct_lock); in kvmppc_remove_runnable()
3181 vcpu->arch.busy_stolen += vcore_stolen_time(vc, now) - in kvmppc_remove_runnable()
3182 vcpu->arch.stolen_logged; in kvmppc_remove_runnable()
3183 vcpu->arch.busy_preempt = now; in kvmppc_remove_runnable()
3184 vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST; in kvmppc_remove_runnable()
3185 spin_unlock_irq(&vcpu->arch.tbacct_lock); in kvmppc_remove_runnable()
3186 --vc->n_runnable; in kvmppc_remove_runnable()
3187 WRITE_ONCE(vc->runnable_threads[vcpu->arch.ptid], NULL); in kvmppc_remove_runnable()
3198 tpaca->kvm_hstate.kvm_vcpu = NULL; in kvmppc_grab_hwthread()
3199 tpaca->kvm_hstate.kvm_vcore = NULL; in kvmppc_grab_hwthread()
3200 tpaca->kvm_hstate.napping = 0; in kvmppc_grab_hwthread()
3202 tpaca->kvm_hstate.hwthread_req = 1; in kvmppc_grab_hwthread()
3214 while (tpaca->kvm_hstate.hwthread_state == KVM_HWTHREAD_IN_KERNEL) { in kvmppc_grab_hwthread()
3215 if (--timeout <= 0) { in kvmppc_grab_hwthread()
3217 return -EBUSY; in kvmppc_grab_hwthread()
3229 tpaca->kvm_hstate.hwthread_req = 0; in kvmppc_release_hwthread()
3230 tpaca->kvm_hstate.kvm_vcpu = NULL; in kvmppc_release_hwthread()
3231 tpaca->kvm_hstate.kvm_vcore = NULL; in kvmppc_release_hwthread()
3232 tpaca->kvm_hstate.kvm_split_mode = NULL; in kvmppc_release_hwthread()
3239 struct kvm_nested_guest *nested = vcpu->arch.nested; in radix_flush_cpu()
3244 need_tlb_flush = &nested->need_tlb_flush; in radix_flush_cpu()
3246 need_tlb_flush = &kvm->arch.need_tlb_flush; in radix_flush_cpu()
3274 struct kvm *kvm = vcpu->kvm; in do_migrate_away_vcpu()
3284 if (kvm->arch.lpcr & LPCR_GTSE) in do_migrate_away_vcpu()
3292 struct kvm_nested_guest *nested = vcpu->arch.nested; in kvmppc_prepare_radix_vcpu()
3293 struct kvm *kvm = vcpu->kvm; in kvmppc_prepare_radix_vcpu()
3300 prev_cpu = nested->prev_cpu[vcpu->arch.nested_vcpu_id]; in kvmppc_prepare_radix_vcpu()
3302 prev_cpu = vcpu->arch.prev_cpu; in kvmppc_prepare_radix_vcpu()
3325 nested->prev_cpu[vcpu->arch.nested_vcpu_id] = pcpu; in kvmppc_prepare_radix_vcpu()
3327 vcpu->arch.prev_cpu = pcpu; in kvmppc_prepare_radix_vcpu()
3336 cpu = vc->pcpu; in kvmppc_start_thread()
3338 if (vcpu->arch.timer_running) { in kvmppc_start_thread()
3339 hrtimer_try_to_cancel(&vcpu->arch.dec_timer); in kvmppc_start_thread()
3340 vcpu->arch.timer_running = 0; in kvmppc_start_thread()
3342 cpu += vcpu->arch.ptid; in kvmppc_start_thread()
3343 vcpu->cpu = vc->pcpu; in kvmppc_start_thread()
3344 vcpu->arch.thread_cpu = cpu; in kvmppc_start_thread()
3347 tpaca->kvm_hstate.kvm_vcpu = vcpu; in kvmppc_start_thread()
3348 tpaca->kvm_hstate.ptid = cpu - vc->pcpu; in kvmppc_start_thread()
3349 tpaca->kvm_hstate.fake_suspend = 0; in kvmppc_start_thread()
3352 tpaca->kvm_hstate.kvm_vcore = vc; in kvmppc_start_thread()
3369 * for any threads that still have a non-NULL vcore ptr. in kvmppc_wait_for_nap()
3372 if (paca_ptrs[cpu + i]->kvm_hstate.kvm_vcore) in kvmppc_wait_for_nap()
3382 if (paca_ptrs[cpu + i]->kvm_hstate.kvm_vcore) in kvmppc_wait_for_nap()
3388 * this core are off-line. Then grab the threads so they can't
3411 } while (--thr > 0); in on_primary_thread()
3436 spin_lock_init(&lp->lock); in init_vcore_lists()
3437 INIT_LIST_HEAD(&lp->list); in init_vcore_lists()
3447 vc->vcore_state = VCORE_PREEMPT; in kvmppc_vcore_preempt()
3448 vc->pcpu = smp_processor_id(); in kvmppc_vcore_preempt()
3449 if (vc->num_threads < threads_per_vcore(vc->kvm)) { in kvmppc_vcore_preempt()
3450 spin_lock(&lp->lock); in kvmppc_vcore_preempt()
3451 list_add_tail(&vc->preempt_list, &lp->list); in kvmppc_vcore_preempt()
3452 spin_unlock(&lp->lock); in kvmppc_vcore_preempt()
3466 if (!list_empty(&vc->preempt_list)) { in kvmppc_vcore_end_preempt()
3467 lp = &per_cpu(preempted_vcores, vc->pcpu); in kvmppc_vcore_end_preempt()
3468 spin_lock(&lp->lock); in kvmppc_vcore_end_preempt()
3469 list_del_init(&vc->preempt_list); in kvmppc_vcore_end_preempt()
3470 spin_unlock(&lp->lock); in kvmppc_vcore_end_preempt()
3472 vc->vcore_state = VCORE_INACTIVE; in kvmppc_vcore_end_preempt()
3488 * This mapping means subcores 0 and 1 can use threads 0-3 and 4-7
3489 * respectively in 2-way micro-threading (split-core) mode on POWER8.
3496 cip->n_subcores = 1; in init_core_info()
3497 cip->max_subcore_threads = vc->num_threads; in init_core_info()
3498 cip->total_threads = vc->num_threads; in init_core_info()
3499 cip->subcore_threads[0] = vc->num_threads; in init_core_info()
3500 cip->vc[0] = vc; in init_core_info()
3506 * POWER9 "SMT4" cores are permanently in what is effectively a 4-way in subcore_config_ok()
3507 * split-core mode, with one thread per subcore. in subcore_config_ok()
3529 vc->entry_exit_map = 0; in init_vcore_to_run()
3530 vc->in_guest = 0; in init_vcore_to_run()
3531 vc->napping_threads = 0; in init_vcore_to_run()
3532 vc->conferring_threads = 0; in init_vcore_to_run()
3533 vc->tb_offset_applied = 0; in init_vcore_to_run()
3538 int n_threads = vc->num_threads; in can_dynamic_split()
3545 if (one_vm_per_core && vc->kvm != cip->vc[0]->kvm) in can_dynamic_split()
3548 if (n_threads < cip->max_subcore_threads) in can_dynamic_split()
3549 n_threads = cip->max_subcore_threads; in can_dynamic_split()
3550 if (!subcore_config_ok(cip->n_subcores + 1, n_threads)) in can_dynamic_split()
3552 cip->max_subcore_threads = n_threads; in can_dynamic_split()
3554 sub = cip->n_subcores; in can_dynamic_split()
3555 ++cip->n_subcores; in can_dynamic_split()
3556 cip->total_threads += vc->num_threads; in can_dynamic_split()
3557 cip->subcore_threads[sub] = vc->num_threads; in can_dynamic_split()
3558 cip->vc[sub] = vc; in can_dynamic_split()
3560 list_del_init(&vc->preempt_list); in can_dynamic_split()
3572 if (cip->total_threads + pvc->num_threads > target_threads) in can_piggyback()
3584 if (signal_pending(vcpu->arch.run_task)) in prepare_threads()
3585 vcpu->arch.ret = -EINTR; in prepare_threads()
3586 else if (vcpu->arch.vpa.update_pending || in prepare_threads()
3587 vcpu->arch.slb_shadow.update_pending || in prepare_threads()
3588 vcpu->arch.dtl.update_pending) in prepare_threads()
3589 vcpu->arch.ret = RESUME_GUEST; in prepare_threads()
3593 wake_up(&vcpu->arch.cpu_run); in prepare_threads()
3602 spin_lock(&lp->lock); in collect_piggybacks()
3603 list_for_each_entry_safe(pvc, vcnext, &lp->list, preempt_list) { in collect_piggybacks()
3604 if (!spin_trylock(&pvc->lock)) in collect_piggybacks()
3607 if (!pvc->n_runnable || !pvc->kvm->arch.mmu_ready) { in collect_piggybacks()
3608 list_del_init(&pvc->preempt_list); in collect_piggybacks()
3609 if (pvc->runner == NULL) { in collect_piggybacks()
3610 pvc->vcore_state = VCORE_INACTIVE; in collect_piggybacks()
3613 spin_unlock(&pvc->lock); in collect_piggybacks()
3617 spin_unlock(&pvc->lock); in collect_piggybacks()
3621 pvc->vcore_state = VCORE_PIGGYBACK; in collect_piggybacks()
3622 if (cip->total_threads >= target_threads) in collect_piggybacks()
3625 spin_unlock(&lp->lock); in collect_piggybacks()
3634 for (sub = 0; sub < cip->n_subcores; ++sub) { in recheck_signals_and_mmu()
3635 vc = cip->vc[sub]; in recheck_signals_and_mmu()
3636 if (!vc->kvm->arch.mmu_ready) in recheck_signals_and_mmu()
3639 if (signal_pending(vcpu->arch.run_task)) in recheck_signals_and_mmu()
3652 spin_lock(&vc->lock); in post_guest_process()
3662 spin_unlock(&vc->lock); in post_guest_process()
3671 if (vcpu->arch.trap) in post_guest_process()
3673 vcpu->arch.run_task); in post_guest_process()
3675 vcpu->arch.ret = ret; in post_guest_process()
3676 vcpu->arch.trap = 0; in post_guest_process()
3678 spin_lock(&vc->lock); in post_guest_process()
3679 if (is_kvmppc_resume_guest(vcpu->arch.ret)) { in post_guest_process()
3680 if (vcpu->arch.pending_exceptions) in post_guest_process()
3682 if (vcpu->arch.ceded) in post_guest_process()
3688 wake_up(&vcpu->arch.cpu_run); in post_guest_process()
3694 } else if (vc->runner) { in post_guest_process()
3695 vc->vcore_state = VCORE_PREEMPT; in post_guest_process()
3698 vc->vcore_state = VCORE_INACTIVE; in post_guest_process()
3700 if (vc->n_runnable > 0 && vc->runner == NULL) { in post_guest_process()
3702 i = -1; in post_guest_process()
3704 wake_up(&vcpu->arch.cpu_run); in post_guest_process()
3707 spin_unlock(&vc->lock); in post_guest_process()
3727 kvmppc_host_rm_ops_hv->rm_core[core].rm_state.in_host = 0; in kvmppc_clear_host_core()
3748 kvmppc_host_rm_ops_hv->rm_core[core].rm_state.in_host = 1; in kvmppc_set_host_core()
3756 local_paca->irq_happened |= PACA_IRQ_EE; in set_irq_happened()
3759 local_paca->irq_happened |= PACA_IRQ_DBELL; in set_irq_happened()
3762 local_paca->irq_happened |= PACA_IRQ_HMI; in set_irq_happened()
3772 * Called with vc->lock held.
3802 if (vc->runner->arch.state != KVMPPC_VCPU_RUNNABLE) in kvmppc_run_core()
3809 vc->preempt_tb = TB_NIL; in kvmppc_run_core()
3816 controlled_threads = threads_per_vcore(vc->kvm); in kvmppc_run_core()
3824 ((vc->num_threads > threads_per_subcore) || !on_primary_thread())) { in kvmppc_run_core()
3826 vcpu->arch.ret = -EBUSY; in kvmppc_run_core()
3828 wake_up(&vcpu->arch.cpu_run); in kvmppc_run_core()
3842 if (vc->num_threads < target_threads) in kvmppc_run_core()
3846 * Hard-disable interrupts, and check resched flag and signals. in kvmppc_run_core()
3857 vc->vcore_state = VCORE_INACTIVE; in kvmppc_run_core()
3863 spin_unlock(&pvc->lock); in kvmppc_run_core()
3872 /* Decide on micro-threading (split-core) mode */ in kvmppc_run_core()
3910 paca->kvm_hstate.napping = 0; in kvmppc_run_core()
3911 paca->kvm_hstate.kvm_split_mode = sip; in kvmppc_run_core()
3914 /* Initiate micro-threading (split-core) on POWER8 if required */ in kvmppc_run_core()
3937 int n_online = atomic_read(&vc->online_count); in kvmppc_run_core()
3940 * Use the 8-thread value if we're doing split-core in kvmppc_run_core()
3956 pvc->pcpu = pcpu + thr; in kvmppc_run_core()
3960 * It updates vcpu->cpu and vcpu->arch.thread_cpu in kvmppc_run_core()
3969 if (!vcpu->arch.ptid) in kvmppc_run_core()
3971 active |= 1 << (thr + vcpu->arch.ptid); in kvmppc_run_core()
3988 * When doing micro-threading, poke the inactive threads as well. in kvmppc_run_core()
3999 vc->vcore_state = VCORE_RUNNING; in kvmppc_run_core()
4005 spin_unlock(&core_info.vc[sub]->lock); in kvmppc_run_core()
4009 srcu_idx = srcu_read_lock(&vc->kvm->srcu); in kvmppc_run_core()
4019 srcu_read_unlock(&vc->kvm->srcu, srcu_idx); in kvmppc_run_core()
4023 spin_lock(&vc->lock); in kvmppc_run_core()
4025 vc->vcore_state = VCORE_EXITING; in kvmppc_run_core()
4030 /* Return to whole-core mode if we split the core earlier */ in kvmppc_run_core()
4071 if (sip && sip->napped[i]) in kvmppc_run_core()
4075 spin_unlock(&vc->lock); in kvmppc_run_core()
4087 spin_lock(&vc->lock); in kvmppc_run_core()
4090 vc->vcore_state = VCORE_INACTIVE; in kvmppc_run_core()
4102 struct lppaca *lp = vcpu->arch.vpa.pinned_addr; in vcpu_vpa_increment_dispatch()
4104 u32 yield_count = be32_to_cpu(lp->yield_count) + 1; in vcpu_vpa_increment_dispatch()
4105 lp->yield_count = cpu_to_be32(yield_count); in vcpu_vpa_increment_dispatch()
4106 vcpu->arch.vpa.dirty = 1; in vcpu_vpa_increment_dispatch()
4118 io = &vcpu->arch.nestedv2_io; in kvmhv_vcpu_entry_nestedv2()
4127 return -EINVAL; in kvmhv_vcpu_entry_nestedv2()
4129 kvmppc_gse_put_u64(io->vcpu_run_input, KVMPPC_GSID_LPCR, lpcr); in kvmhv_vcpu_entry_nestedv2()
4131 accumulate_time(vcpu, &vcpu->arch.in_guest); in kvmhv_vcpu_entry_nestedv2()
4132 rc = plpar_guest_run_vcpu(0, vcpu->kvm->arch.lpid, vcpu->vcpu_id, in kvmhv_vcpu_entry_nestedv2()
4143 return -EINVAL; in kvmhv_vcpu_entry_nestedv2()
4145 accumulate_time(vcpu, &vcpu->arch.guest_exit); in kvmhv_vcpu_entry_nestedv2()
4148 kvmppc_gsm_reset(io->vcpu_message); in kvmhv_vcpu_entry_nestedv2()
4149 kvmppc_gsm_reset(io->vcore_message); in kvmhv_vcpu_entry_nestedv2()
4150 kvmppc_gsbm_zero(&io->valids); in kvmhv_vcpu_entry_nestedv2()
4154 return -EINVAL; in kvmhv_vcpu_entry_nestedv2()
4190 if (vcpu->arch.psscr != host_psscr) in kvmhv_vcpu_entry_p9_nested()
4191 mtspr(SPRN_PSSCR_PR, vcpu->arch.psscr); in kvmhv_vcpu_entry_p9_nested()
4196 vcpu->arch.regs.msr = vcpu->arch.shregs.msr; in kvmhv_vcpu_entry_p9_nested()
4198 if (vcpu->arch.nested) { in kvmhv_vcpu_entry_p9_nested()
4199 hvregs.lpid = vcpu->arch.nested->shadow_lpid; in kvmhv_vcpu_entry_p9_nested()
4200 hvregs.vcpu_token = vcpu->arch.nested_vcpu_id; in kvmhv_vcpu_entry_p9_nested()
4202 hvregs.lpid = vcpu->kvm->arch.lpid; in kvmhv_vcpu_entry_p9_nested()
4203 hvregs.vcpu_token = vcpu->vcpu_id; in kvmhv_vcpu_entry_p9_nested()
4221 mtspr(SPRN_DEC, kvmppc_dec_expires_host_tb(vcpu) - *tb); in kvmhv_vcpu_entry_p9_nested()
4223 mtspr(SPRN_DAR, vcpu->arch.shregs.dar); in kvmhv_vcpu_entry_p9_nested()
4224 mtspr(SPRN_DSISR, vcpu->arch.shregs.dsisr); in kvmhv_vcpu_entry_p9_nested()
4226 accumulate_time(vcpu, &vcpu->arch.in_guest); in kvmhv_vcpu_entry_p9_nested()
4228 __pa(&vcpu->arch.regs)); in kvmhv_vcpu_entry_p9_nested()
4229 accumulate_time(vcpu, &vcpu->arch.guest_exit); in kvmhv_vcpu_entry_p9_nested()
4232 vcpu->arch.shregs.msr = vcpu->arch.regs.msr; in kvmhv_vcpu_entry_p9_nested()
4233 vcpu->arch.shregs.dar = mfspr(SPRN_DAR); in kvmhv_vcpu_entry_p9_nested()
4234 vcpu->arch.shregs.dsisr = mfspr(SPRN_DSISR); in kvmhv_vcpu_entry_p9_nested()
4235 vcpu->arch.psscr = mfspr(SPRN_PSSCR_PR); in kvmhv_vcpu_entry_p9_nested()
4243 vcpu->arch.dec_expires = dec + (*tb + kvmppc_get_tb_offset(vcpu)); in kvmhv_vcpu_entry_p9_nested()
4248 if (vcpu->arch.psscr != host_psscr) in kvmhv_vcpu_entry_p9_nested()
4260 struct kvm *kvm = vcpu->kvm; in kvmhv_p9_guest_entry()
4261 struct kvm_nested_guest *nested = vcpu->arch.nested; in kvmhv_p9_guest_entry()
4273 vcpu->arch.ceded = 0; in kvmhv_p9_guest_entry()
4320 vcpu->arch.ceded = 0; in kvmhv_p9_guest_entry()
4352 vcpu->arch.slb_max = 0; in kvmhv_p9_guest_entry()
4369 prepare_to_wait(&vcpu->arch.cpu_run, &wait, wait_state); in kvmppc_wait_for_exec()
4370 if (vcpu->arch.state == KVMPPC_VCPU_RUNNABLE) { in kvmppc_wait_for_exec()
4371 spin_unlock(&vc->lock); in kvmppc_wait_for_exec()
4373 spin_lock(&vc->lock); in kvmppc_wait_for_exec()
4375 finish_wait(&vcpu->arch.cpu_run, &wait); in kvmppc_wait_for_exec()
4383 vc->halt_poll_ns *= halt_poll_ns_grow; in grow_halt_poll_ns()
4384 if (vc->halt_poll_ns < halt_poll_ns_grow_start) in grow_halt_poll_ns()
4385 vc->halt_poll_ns = halt_poll_ns_grow_start; in grow_halt_poll_ns()
4391 vc->halt_poll_ns = 0; in shrink_halt_poll_ns()
4393 vc->halt_poll_ns /= halt_poll_ns_shrink; in shrink_halt_poll_ns()
4401 return vcpu->arch.irq_pending || vcpu->arch.xive_saved_state.pipr < in xive_interrupt_pending()
4402 vcpu->arch.xive_saved_state.cppr; in xive_interrupt_pending()
4413 if (vcpu->arch.pending_exceptions || vcpu->arch.prodded || in kvmppc_vcpu_woken()
4422 if (!vcpu->arch.ceded || kvmppc_vcpu_woken(vcpu)) in kvmppc_vcpu_check_block()
4446 * or external interrupt to one of the vcpus. vc->lock is held.
4458 if (vc->halt_poll_ns) { in kvmppc_vcore_blocked()
4459 ktime_t stop = ktime_add_ns(start_poll, vc->halt_poll_ns); in kvmppc_vcore_blocked()
4460 ++vc->runner->stat.generic.halt_attempted_poll; in kvmppc_vcore_blocked()
4462 vc->vcore_state = VCORE_POLLING; in kvmppc_vcore_blocked()
4463 spin_unlock(&vc->lock); in kvmppc_vcore_blocked()
4473 spin_lock(&vc->lock); in kvmppc_vcore_blocked()
4474 vc->vcore_state = VCORE_INACTIVE; in kvmppc_vcore_blocked()
4477 ++vc->runner->stat.generic.halt_successful_poll; in kvmppc_vcore_blocked()
4482 prepare_to_rcuwait(&vc->wait); in kvmppc_vcore_blocked()
4485 finish_rcuwait(&vc->wait); in kvmppc_vcore_blocked()
4488 if (vc->halt_poll_ns) in kvmppc_vcore_blocked()
4489 ++vc->runner->stat.generic.halt_successful_poll; in kvmppc_vcore_blocked()
4495 vc->vcore_state = VCORE_SLEEPING; in kvmppc_vcore_blocked()
4496 trace_kvmppc_vcore_blocked(vc->runner, 0); in kvmppc_vcore_blocked()
4497 spin_unlock(&vc->lock); in kvmppc_vcore_blocked()
4499 finish_rcuwait(&vc->wait); in kvmppc_vcore_blocked()
4500 spin_lock(&vc->lock); in kvmppc_vcore_blocked()
4501 vc->vcore_state = VCORE_INACTIVE; in kvmppc_vcore_blocked()
4502 trace_kvmppc_vcore_blocked(vc->runner, 1); in kvmppc_vcore_blocked()
4503 ++vc->runner->stat.halt_successful_wait; in kvmppc_vcore_blocked()
4508 block_ns = ktime_to_ns(cur) - ktime_to_ns(start_poll); in kvmppc_vcore_blocked()
4512 vc->runner->stat.generic.halt_wait_ns += in kvmppc_vcore_blocked()
4513 ktime_to_ns(cur) - ktime_to_ns(start_wait); in kvmppc_vcore_blocked()
4515 vc->runner->stat.generic.halt_wait_hist, in kvmppc_vcore_blocked()
4516 ktime_to_ns(cur) - ktime_to_ns(start_wait)); in kvmppc_vcore_blocked()
4518 if (vc->halt_poll_ns) { in kvmppc_vcore_blocked()
4519 vc->runner->stat.generic.halt_poll_fail_ns += in kvmppc_vcore_blocked()
4520 ktime_to_ns(start_wait) - in kvmppc_vcore_blocked()
4523 vc->runner->stat.generic.halt_poll_fail_hist, in kvmppc_vcore_blocked()
4524 ktime_to_ns(start_wait) - in kvmppc_vcore_blocked()
4529 if (vc->halt_poll_ns) { in kvmppc_vcore_blocked()
4530 vc->runner->stat.generic.halt_poll_success_ns += in kvmppc_vcore_blocked()
4531 ktime_to_ns(cur) - in kvmppc_vcore_blocked()
4534 vc->runner->stat.generic.halt_poll_success_hist, in kvmppc_vcore_blocked()
4535 ktime_to_ns(cur) - ktime_to_ns(start_poll)); in kvmppc_vcore_blocked()
4541 if (block_ns <= vc->halt_poll_ns) in kvmppc_vcore_blocked()
4544 else if (vc->halt_poll_ns && block_ns > halt_poll_ns) in kvmppc_vcore_blocked()
4547 else if (vc->halt_poll_ns < halt_poll_ns && in kvmppc_vcore_blocked()
4550 if (vc->halt_poll_ns > halt_poll_ns) in kvmppc_vcore_blocked()
4551 vc->halt_poll_ns = halt_poll_ns; in kvmppc_vcore_blocked()
4553 vc->halt_poll_ns = 0; in kvmppc_vcore_blocked()
4565 struct kvm *kvm = vcpu->kvm; in kvmhv_setup_mmu()
4567 mutex_lock(&kvm->arch.mmu_setup_lock); in kvmhv_setup_mmu()
4568 if (!kvm->arch.mmu_ready) { in kvmhv_setup_mmu()
4574 kvm->arch.mmu_ready = 1; in kvmhv_setup_mmu()
4577 mutex_unlock(&kvm->arch.mmu_setup_lock); in kvmhv_setup_mmu()
4583 struct kvm_run *run = vcpu->run; in kvmppc_run_vcpu()
4590 run->exit_reason = 0; in kvmppc_run_vcpu()
4591 vcpu->arch.ret = RESUME_GUEST; in kvmppc_run_vcpu()
4592 vcpu->arch.trap = 0; in kvmppc_run_vcpu()
4598 vc = vcpu->arch.vcore; in kvmppc_run_vcpu()
4599 spin_lock(&vc->lock); in kvmppc_run_vcpu()
4600 vcpu->arch.ceded = 0; in kvmppc_run_vcpu()
4601 vcpu->arch.run_task = current; in kvmppc_run_vcpu()
4602 vcpu->arch.stolen_logged = vcore_stolen_time(vc, mftb()); in kvmppc_run_vcpu()
4603 vcpu->arch.state = KVMPPC_VCPU_RUNNABLE; in kvmppc_run_vcpu()
4604 vcpu->arch.busy_preempt = TB_NIL; in kvmppc_run_vcpu()
4605 WRITE_ONCE(vc->runnable_threads[vcpu->arch.ptid], vcpu); in kvmppc_run_vcpu()
4606 ++vc->n_runnable; in kvmppc_run_vcpu()
4614 if ((vc->vcore_state == VCORE_PIGGYBACK || in kvmppc_run_vcpu()
4615 vc->vcore_state == VCORE_RUNNING) && in kvmppc_run_vcpu()
4620 } else if (vc->vcore_state == VCORE_SLEEPING) { in kvmppc_run_vcpu()
4621 rcuwait_wake_up(&vc->wait); in kvmppc_run_vcpu()
4626 while (vcpu->arch.state == KVMPPC_VCPU_RUNNABLE && in kvmppc_run_vcpu()
4629 if (!vcpu->kvm->arch.mmu_ready) { in kvmppc_run_vcpu()
4630 spin_unlock(&vc->lock); in kvmppc_run_vcpu()
4632 spin_lock(&vc->lock); in kvmppc_run_vcpu()
4634 run->exit_reason = KVM_EXIT_FAIL_ENTRY; in kvmppc_run_vcpu()
4635 run->fail_entry. in kvmppc_run_vcpu()
4637 vcpu->arch.ret = r; in kvmppc_run_vcpu()
4642 if (vc->vcore_state == VCORE_PREEMPT && vc->runner == NULL) in kvmppc_run_vcpu()
4645 if (vc->vcore_state != VCORE_INACTIVE) { in kvmppc_run_vcpu()
4651 if (signal_pending(v->arch.run_task)) { in kvmppc_run_vcpu()
4653 v->stat.signal_exits++; in kvmppc_run_vcpu()
4654 v->run->exit_reason = KVM_EXIT_INTR; in kvmppc_run_vcpu()
4655 v->arch.ret = -EINTR; in kvmppc_run_vcpu()
4656 wake_up(&v->arch.cpu_run); in kvmppc_run_vcpu()
4659 if (!vc->n_runnable || vcpu->arch.state != KVMPPC_VCPU_RUNNABLE) in kvmppc_run_vcpu()
4664 n_ceded += v->arch.ceded; in kvmppc_run_vcpu()
4666 v->arch.ceded = 0; in kvmppc_run_vcpu()
4668 vc->runner = vcpu; in kvmppc_run_vcpu()
4669 if (n_ceded == vc->n_runnable) { in kvmppc_run_vcpu()
4674 cond_resched_lock(&vc->lock); in kvmppc_run_vcpu()
4675 if (vc->vcore_state == VCORE_PREEMPT) in kvmppc_run_vcpu()
4680 vc->runner = NULL; in kvmppc_run_vcpu()
4683 while (vcpu->arch.state == KVMPPC_VCPU_RUNNABLE && in kvmppc_run_vcpu()
4684 (vc->vcore_state == VCORE_RUNNING || in kvmppc_run_vcpu()
4685 vc->vcore_state == VCORE_EXITING || in kvmppc_run_vcpu()
4686 vc->vcore_state == VCORE_PIGGYBACK)) in kvmppc_run_vcpu()
4689 if (vc->vcore_state == VCORE_PREEMPT && vc->runner == NULL) in kvmppc_run_vcpu()
4692 if (vcpu->arch.state == KVMPPC_VCPU_RUNNABLE) { in kvmppc_run_vcpu()
4694 vcpu->stat.signal_exits++; in kvmppc_run_vcpu()
4695 run->exit_reason = KVM_EXIT_INTR; in kvmppc_run_vcpu()
4696 vcpu->arch.ret = -EINTR; in kvmppc_run_vcpu()
4699 if (vc->n_runnable && vc->vcore_state == VCORE_INACTIVE) { in kvmppc_run_vcpu()
4701 i = -1; in kvmppc_run_vcpu()
4703 wake_up(&v->arch.cpu_run); in kvmppc_run_vcpu()
4707 spin_unlock(&vc->lock); in kvmppc_run_vcpu()
4708 return vcpu->arch.ret; in kvmppc_run_vcpu()
4715 struct kvm_run *run = vcpu->run; in kvmhv_run_single_vcpu()
4719 struct kvm *kvm = vcpu->kvm; in kvmhv_run_single_vcpu()
4720 struct kvm_nested_guest *nested = vcpu->arch.nested; in kvmhv_run_single_vcpu()
4726 run->exit_reason = 0; in kvmhv_run_single_vcpu()
4727 vcpu->arch.ret = RESUME_GUEST; in kvmhv_run_single_vcpu()
4728 vcpu->arch.trap = 0; in kvmhv_run_single_vcpu()
4730 vc = vcpu->arch.vcore; in kvmhv_run_single_vcpu()
4731 vcpu->arch.ceded = 0; in kvmhv_run_single_vcpu()
4732 vcpu->arch.run_task = current; in kvmhv_run_single_vcpu()
4733 vcpu->arch.last_inst = KVM_INST_FETCH_FAILED; in kvmhv_run_single_vcpu()
4736 if (unlikely(!kvm->arch.mmu_ready)) { in kvmhv_run_single_vcpu()
4739 run->exit_reason = KVM_EXIT_FAIL_ENTRY; in kvmhv_run_single_vcpu()
4740 run->fail_entry.hardware_entry_failure_reason = 0; in kvmhv_run_single_vcpu()
4741 vcpu->arch.ret = r; in kvmhv_run_single_vcpu()
4759 vcpu->arch.state = KVMPPC_VCPU_RUNNABLE; in kvmhv_run_single_vcpu()
4763 if (need_resched() || !kvm->arch.mmu_ready) in kvmhv_run_single_vcpu()
4766 vcpu->cpu = pcpu; in kvmhv_run_single_vcpu()
4767 vcpu->arch.thread_cpu = pcpu; in kvmhv_run_single_vcpu()
4768 vc->pcpu = pcpu; in kvmhv_run_single_vcpu()
4769 local_paca->kvm_hstate.kvm_vcpu = vcpu; in kvmhv_run_single_vcpu()
4770 local_paca->kvm_hstate.ptid = 0; in kvmhv_run_single_vcpu()
4771 local_paca->kvm_hstate.fake_suspend = 0; in kvmhv_run_single_vcpu()
4784 &vcpu->arch.pending_exceptions) || in kvmhv_run_single_vcpu()
4797 } else if (vcpu->arch.pending_exceptions || in kvmhv_run_single_vcpu()
4798 vcpu->arch.doorbell_request || in kvmhv_run_single_vcpu()
4800 vcpu->arch.ret = RESUME_HOST; in kvmhv_run_single_vcpu()
4804 if (vcpu->arch.timer_running) { in kvmhv_run_single_vcpu()
4805 hrtimer_try_to_cancel(&vcpu->arch.dec_timer); in kvmhv_run_single_vcpu()
4806 vcpu->arch.timer_running = 0; in kvmhv_run_single_vcpu()
4817 srcu_idx = srcu_read_lock(&kvm->srcu); in kvmhv_run_single_vcpu()
4823 vcpu->arch.trap = trap; in kvmhv_run_single_vcpu()
4828 srcu_read_unlock(&kvm->srcu, srcu_idx); in kvmhv_run_single_vcpu()
4832 vcpu->cpu = -1; in kvmhv_run_single_vcpu()
4833 vcpu->arch.thread_cpu = -1; in kvmhv_run_single_vcpu()
4834 vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST; in kvmhv_run_single_vcpu()
4873 vcpu->arch.ret = r; in kvmhv_run_single_vcpu()
4882 vcpu->stat.signal_exits++; in kvmhv_run_single_vcpu()
4883 run->exit_reason = KVM_EXIT_INTR; in kvmhv_run_single_vcpu()
4884 vcpu->arch.ret = -EINTR; in kvmhv_run_single_vcpu()
4897 vcpu->arch.ceded = 0; in kvmhv_run_single_vcpu()
4902 return vcpu->arch.ret; in kvmhv_run_single_vcpu()
4905 vcpu->stat.signal_exits++; in kvmhv_run_single_vcpu()
4906 run->exit_reason = KVM_EXIT_INTR; in kvmhv_run_single_vcpu()
4907 vcpu->arch.ret = -EINTR; in kvmhv_run_single_vcpu()
4909 vcpu->cpu = -1; in kvmhv_run_single_vcpu()
4910 vcpu->arch.thread_cpu = -1; in kvmhv_run_single_vcpu()
4911 vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST; in kvmhv_run_single_vcpu()
4919 struct kvm_run *run = vcpu->run; in kvmppc_vcpu_run_hv()
4925 start_timing(vcpu, &vcpu->arch.vcpu_entry); in kvmppc_vcpu_run_hv()
4927 if (!vcpu->arch.sane) { in kvmppc_vcpu_run_hv()
4928 run->exit_reason = KVM_EXIT_INTERNAL_ERROR; in kvmppc_vcpu_run_hv()
4929 return -EINVAL; in kvmppc_vcpu_run_hv()
4934 run->exit_reason = KVM_EXIT_INTR; in kvmppc_vcpu_run_hv()
4935 return -EINTR; in kvmppc_vcpu_run_hv()
4943 if (cpu_has_feature(CPU_FTR_TM) && current->thread.regs && in kvmppc_vcpu_run_hv()
4944 (current->thread.regs->msr & MSR_TM)) { in kvmppc_vcpu_run_hv()
4945 if (MSR_TM_ACTIVE(current->thread.regs->msr)) { in kvmppc_vcpu_run_hv()
4946 run->exit_reason = KVM_EXIT_FAIL_ENTRY; in kvmppc_vcpu_run_hv()
4947 run->fail_entry.hardware_entry_failure_reason = 0; in kvmppc_vcpu_run_hv()
4948 return -EINVAL; in kvmppc_vcpu_run_hv()
4957 if (!vcpu->arch.online) { in kvmppc_vcpu_run_hv()
4958 atomic_inc(&vcpu->arch.vcore->online_count); in kvmppc_vcpu_run_hv()
4959 vcpu->arch.online = 1; in kvmppc_vcpu_run_hv()
4964 kvm = vcpu->kvm; in kvmppc_vcpu_run_hv()
4965 atomic_inc(&kvm->arch.vcpus_running); in kvmppc_vcpu_run_hv()
4987 vcpu->arch.waitp = &vcpu->arch.vcore->wait; in kvmppc_vcpu_run_hv()
4988 vcpu->arch.pgdir = kvm->mm->pgd; in kvmppc_vcpu_run_hv()
4989 vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST; in kvmppc_vcpu_run_hv()
4992 accumulate_time(vcpu, &vcpu->arch.guest_entry); in kvmppc_vcpu_run_hv()
4995 vcpu->arch.vcore->lpcr); in kvmppc_vcpu_run_hv()
4999 if (run->exit_reason == KVM_EXIT_PAPR_HCALL) { in kvmppc_vcpu_run_hv()
5000 accumulate_time(vcpu, &vcpu->arch.hcall); in kvmppc_vcpu_run_hv()
5017 accumulate_time(vcpu, &vcpu->arch.pg_fault); in kvmppc_vcpu_run_hv()
5018 srcu_idx = srcu_read_lock(&kvm->srcu); in kvmppc_vcpu_run_hv()
5020 vcpu->arch.fault_dar, vcpu->arch.fault_dsisr); in kvmppc_vcpu_run_hv()
5021 srcu_read_unlock(&kvm->srcu, srcu_idx); in kvmppc_vcpu_run_hv()
5029 accumulate_time(vcpu, &vcpu->arch.vcpu_exit); in kvmppc_vcpu_run_hv()
5031 vcpu->arch.state = KVMPPC_VCPU_NOTREADY; in kvmppc_vcpu_run_hv()
5032 atomic_dec(&kvm->arch.vcpus_running); in kvmppc_vcpu_run_hv()
5044 (*sps)->page_shift = shift; in kvmppc_add_seg_page_size()
5045 (*sps)->slb_enc = sllp; in kvmppc_add_seg_page_size()
5046 (*sps)->enc[0].page_shift = shift; in kvmppc_add_seg_page_size()
5047 (*sps)->enc[0].pte_enc = kvmppc_pgsize_lp_encoding(shift, shift); in kvmppc_add_seg_page_size()
5053 if (penc != -1) { in kvmppc_add_seg_page_size()
5054 (*sps)->enc[1].page_shift = 24; in kvmppc_add_seg_page_size()
5055 (*sps)->enc[1].pte_enc = penc; in kvmppc_add_seg_page_size()
5071 info->data_keys = 32; in kvm_vm_ioctl_get_smmu_info_hv()
5072 info->instr_keys = cpu_has_feature(CPU_FTR_ARCH_207S) ? 32 : 0; in kvm_vm_ioctl_get_smmu_info_hv()
5074 /* POWER7, 8 and 9 all have 1T segments and 32-entry SLB */ in kvm_vm_ioctl_get_smmu_info_hv()
5075 info->flags = KVM_PPC_PAGE_SIZES_REAL | KVM_PPC_1T_SEGMENTS; in kvm_vm_ioctl_get_smmu_info_hv()
5076 info->slb_size = 32; in kvm_vm_ioctl_get_smmu_info_hv()
5078 /* We only support these sizes for now, and no muti-size segments */ in kvm_vm_ioctl_get_smmu_info_hv()
5079 sps = &info->sps[0]; in kvm_vm_ioctl_get_smmu_info_hv()
5086 info->flags |= KVM_PPC_NO_HASH; in kvm_vm_ioctl_get_smmu_info_hv()
5104 mutex_lock(&kvm->slots_lock); in kvm_vm_ioctl_get_dirty_log_hv()
5106 r = -EINVAL; in kvm_vm_ioctl_get_dirty_log_hv()
5107 if (log->slot >= KVM_USER_MEM_SLOTS) in kvm_vm_ioctl_get_dirty_log_hv()
5111 memslot = id_to_memslot(slots, log->slot); in kvm_vm_ioctl_get_dirty_log_hv()
5112 r = -ENOENT; in kvm_vm_ioctl_get_dirty_log_hv()
5113 if (!memslot || !memslot->dirty_bitmap) in kvm_vm_ioctl_get_dirty_log_hv()
5121 buf = memslot->dirty_bitmap + n / sizeof(long); in kvm_vm_ioctl_get_dirty_log_hv()
5137 p = memslot->dirty_bitmap; in kvm_vm_ioctl_get_dirty_log_hv()
5144 spin_lock(&vcpu->arch.vpa_update_lock); in kvm_vm_ioctl_get_dirty_log_hv()
5145 kvmppc_harvest_vpa_dirty(&vcpu->arch.vpa, memslot, buf); in kvm_vm_ioctl_get_dirty_log_hv()
5146 kvmppc_harvest_vpa_dirty(&vcpu->arch.dtl, memslot, buf); in kvm_vm_ioctl_get_dirty_log_hv()
5147 spin_unlock(&vcpu->arch.vpa_update_lock); in kvm_vm_ioctl_get_dirty_log_hv()
5150 r = -EFAULT; in kvm_vm_ioctl_get_dirty_log_hv()
5151 if (copy_to_user(log->dirty_bitmap, buf, n)) in kvm_vm_ioctl_get_dirty_log_hv()
5156 mutex_unlock(&kvm->slots_lock); in kvm_vm_ioctl_get_dirty_log_hv()
5162 vfree(slot->arch.rmap); in kvmppc_core_free_memslot_hv()
5163 slot->arch.rmap = NULL; in kvmppc_core_free_memslot_hv()
5172 unsigned long size = array_size(new->npages, sizeof(*new->arch.rmap)); in kvmppc_core_prepare_memory_region_hv()
5175 return -ENOMEM; in kvmppc_core_prepare_memory_region_hv()
5177 new->arch.rmap = vzalloc(size); in kvmppc_core_prepare_memory_region_hv()
5178 if (!new->arch.rmap) in kvmppc_core_prepare_memory_region_hv()
5179 return -ENOMEM; in kvmppc_core_prepare_memory_region_hv()
5181 new->arch.rmap = old->arch.rmap; in kvmppc_core_prepare_memory_region_hv()
5199 atomic64_inc(&kvm->arch.mmio_update); in kvmppc_core_commit_memory_region_hv()
5209 * to get rid of any THP PTEs in the partition-scoped page tables in kvmppc_core_commit_memory_region_hv()
5215 ((new->flags ^ old->flags) & KVM_MEM_LOG_DIRTY_PAGES)) in kvmppc_core_commit_memory_region_hv()
5220 if (!kvm->arch.secure_guest) in kvmppc_core_commit_memory_region_hv()
5241 * Update LPCR values in kvm->arch and in vcores.
5242 * Caller must hold kvm->arch.mmu_setup_lock (for mutual exclusion
5243 * of kvm->arch.lpcr update).
5250 if ((kvm->arch.lpcr & mask) == lpcr) in kvmppc_update_lpcr()
5253 kvm->arch.lpcr = (kvm->arch.lpcr & ~mask) | lpcr; in kvmppc_update_lpcr()
5256 struct kvmppc_vcore *vc = kvm->arch.vcores[i]; in kvmppc_update_lpcr()
5260 spin_lock(&vc->lock); in kvmppc_update_lpcr()
5261 vc->lpcr = (vc->lpcr & ~mask) | lpcr; in kvmppc_update_lpcr()
5262 verify_lpcr(kvm, vc->lpcr); in kvmppc_update_lpcr()
5263 spin_unlock(&vc->lock); in kvmppc_update_lpcr()
5264 if (++cores_done >= kvm->arch.online_vcores) in kvmppc_update_lpcr()
5282 /* PS field - page size for VRMA */ in kvmppc_setup_partition_table()
5283 dw0 = ((kvm->arch.vrma_slb_v & SLB_VSID_L) >> 1) | in kvmppc_setup_partition_table()
5284 ((kvm->arch.vrma_slb_v & SLB_VSID_LP) << 1); in kvmppc_setup_partition_table()
5286 dw0 |= kvm->arch.sdr1; in kvmppc_setup_partition_table()
5289 dw1 = kvm->arch.process_table; in kvmppc_setup_partition_table()
5292 __pa(kvm->arch.pgtable) | RADIX_PGD_INDEX_SIZE; in kvmppc_setup_partition_table()
5293 dw1 = PATB_GR | kvm->arch.process_table; in kvmppc_setup_partition_table()
5295 kvmhv_set_ptbl_entry(kvm->arch.lpid, dw0, dw1); in kvmppc_setup_partition_table()
5299 * Set up HPT (hashed page table) and RMA (real-mode area).
5300 * Must be called with kvm->arch.mmu_setup_lock held.
5305 struct kvm *kvm = vcpu->kvm; in kvmppc_hv_setup_htab_rma()
5314 if (!kvm->arch.hpt.virt) { in kvmppc_hv_setup_htab_rma()
5322 while ((err == -ENOMEM) && --order >= PPC_MIN_HPT_ORDER) in kvmppc_hv_setup_htab_rma()
5334 srcu_idx = srcu_read_lock(&kvm->srcu); in kvmppc_hv_setup_htab_rma()
5338 err = -EINVAL; in kvmppc_hv_setup_htab_rma()
5339 if (!memslot || (memslot->flags & KVM_MEMSLOT_INVALID)) in kvmppc_hv_setup_htab_rma()
5343 hva = memslot->userspace_addr; in kvmppc_hv_setup_htab_rma()
5344 mmap_read_lock(kvm->mm); in kvmppc_hv_setup_htab_rma()
5345 vma = vma_lookup(kvm->mm, hva); in kvmppc_hv_setup_htab_rma()
5346 if (!vma || (vma->vm_flags & VM_IO)) in kvmppc_hv_setup_htab_rma()
5351 mmap_read_unlock(kvm->mm); in kvmppc_hv_setup_htab_rma()
5363 kvm->arch.vrma_slb_v = senc | SLB_VSID_B_1T | in kvmppc_hv_setup_htab_rma()
5370 /* the -4 is to account for senc values starting at 0x10 */ in kvmppc_hv_setup_htab_rma()
5371 lpcr = senc << (LPCR_VRMASD_SH - 4); in kvmppc_hv_setup_htab_rma()
5375 /* Order updates to kvm->arch.lpcr etc. vs. mmu_ready */ in kvmppc_hv_setup_htab_rma()
5379 srcu_read_unlock(&kvm->srcu, srcu_idx); in kvmppc_hv_setup_htab_rma()
5384 mmap_read_unlock(kvm->mm); in kvmppc_hv_setup_htab_rma()
5389 * Must be called with kvm->arch.mmu_setup_lock held and
5399 kvm->arch.process_table = 0; in kvmppc_switch_mmu_to_hpt()
5401 spin_lock(&kvm->mmu_lock); in kvmppc_switch_mmu_to_hpt()
5402 kvm->arch.radix = 0; in kvmppc_switch_mmu_to_hpt()
5403 spin_unlock(&kvm->mmu_lock); in kvmppc_switch_mmu_to_hpt()
5416 * Must be called with kvm->arch.mmu_setup_lock held and
5429 spin_lock(&kvm->mmu_lock); in kvmppc_switch_mmu_to_radix()
5430 kvm->arch.radix = 1; in kvmppc_switch_mmu_to_radix()
5431 spin_unlock(&kvm->mmu_lock); in kvmppc_switch_mmu_to_radix()
5432 kvmppc_free_hpt(&kvm->arch.hpt); in kvmppc_switch_mmu_to_radix()
5439 (kvm->arch.host_lpcr & LPCR_HAIL)) in kvmppc_switch_mmu_to_radix()
5449 * Allocate a per-core structure for managing state about which cores are
5454 * It is only freed when the kvm-hv module is unloaded.
5477 ops->rm_core = kzalloc(size, GFP_KERNEL); in kvmppc_alloc_host_rm_ops()
5479 if (!ops->rm_core) { in kvmppc_alloc_host_rm_ops()
5491 ops->rm_core[core].rm_state.in_host = 1; in kvmppc_alloc_host_rm_ops()
5494 ops->vcpu_kick = kvmppc_fast_vcpu_kick_hv; in kvmppc_alloc_host_rm_ops()
5507 kfree(ops->rm_core); in kvmppc_alloc_host_rm_ops()
5523 kfree(kvmppc_host_rm_ops_hv->rm_core); in kvmppc_free_host_rm_ops()
5535 mutex_init(&kvm->arch.uvmem_lock); in kvmppc_core_init_vm_hv()
5536 INIT_LIST_HEAD(&kvm->arch.uvmem_pfns); in kvmppc_core_init_vm_hv()
5537 mutex_init(&kvm->arch.mmu_setup_lock); in kvmppc_core_init_vm_hv()
5544 return -ENOMEM; in kvmppc_core_init_vm_hv()
5545 kvm->arch.lpid = lpid; in kvmppc_core_init_vm_hv()
5565 return -EINVAL; in kvmppc_core_init_vm_hv()
5568 return -ENOMEM; in kvmppc_core_init_vm_hv()
5570 return -EPERM; in kvmppc_core_init_vm_hv()
5572 return -EBUSY; in kvmppc_core_init_vm_hv()
5574 kvm->arch.lpid = guest_id; in kvmppc_core_init_vm_hv()
5586 cpumask_setall(&kvm->arch.need_tlb_flush); in kvmppc_core_init_vm_hv()
5589 memcpy(kvm->arch.enabled_hcalls, default_enabled_hcalls, in kvmppc_core_init_vm_hv()
5590 sizeof(kvm->arch.enabled_hcalls)); in kvmppc_core_init_vm_hv()
5593 kvm->arch.host_sdr1 = mfspr(SPRN_SDR1); in kvmppc_core_init_vm_hv()
5597 kvm->arch.host_lpid = mfspr(SPRN_LPID); in kvmppc_core_init_vm_hv()
5598 kvm->arch.host_lpcr = lpcr = mfspr(SPRN_LPCR); in kvmppc_core_init_vm_hv()
5609 kvm->arch.vrma_slb_v = SLB_VSID_B_1T | in kvmppc_core_init_vm_hv()
5618 * be unnecessary but better safe than sorry in case we re-enable in kvmppc_core_init_vm_hv()
5637 kvm->arch.radix = 1; in kvmppc_core_init_vm_hv()
5638 kvm->arch.mmu_ready = 1; in kvmppc_core_init_vm_hv()
5643 (kvm->arch.host_lpcr & LPCR_HAIL)) in kvmppc_core_init_vm_hv()
5648 plpar_guest_delete(0, kvm->arch.lpid); in kvmppc_core_init_vm_hv()
5650 kvmppc_free_lpid(kvm->arch.lpid); in kvmppc_core_init_vm_hv()
5657 kvm->arch.lpcr = lpcr; in kvmppc_core_init_vm_hv()
5660 kvm->arch.resize_hpt = NULL; in kvmppc_core_init_vm_hv()
5670 kvm->arch.tlb_sets = 1; in kvmppc_core_init_vm_hv()
5672 kvm->arch.tlb_sets = POWER9_TLB_SETS_RADIX; /* 128 */ in kvmppc_core_init_vm_hv()
5674 kvm->arch.tlb_sets = POWER9_TLB_SETS_HASH; /* 256 */ in kvmppc_core_init_vm_hv()
5676 kvm->arch.tlb_sets = POWER8_TLB_SETS; /* 512 */ in kvmppc_core_init_vm_hv()
5678 kvm->arch.tlb_sets = POWER7_TLB_SETS; /* 128 */ in kvmppc_core_init_vm_hv()
5695 kvm->arch.smt_mode = threads_per_subcore; in kvmppc_core_init_vm_hv()
5697 kvm->arch.smt_mode = 1; in kvmppc_core_init_vm_hv()
5698 kvm->arch.emul_smt_mode = 1; in kvmppc_core_init_vm_hv()
5716 kfree(kvm->arch.vcores[i]); in kvmppc_free_vcores()
5717 kvm->arch.online_vcores = 0; in kvmppc_free_vcores()
5731 kvmppc_free_hpt(&kvm->arch.hpt); in kvmppc_core_destroy_vm_hv()
5737 kvm->arch.process_table = 0; in kvmppc_core_destroy_vm_hv()
5738 if (kvm->arch.secure_guest) in kvmppc_core_destroy_vm_hv()
5739 uv_svm_terminate(kvm->arch.lpid); in kvmppc_core_destroy_vm_hv()
5741 kvmhv_set_ptbl_entry(kvm->arch.lpid, 0, 0); in kvmppc_core_destroy_vm_hv()
5745 kvmhv_flush_lpid(kvm->arch.lpid); in kvmppc_core_destroy_vm_hv()
5746 plpar_guest_delete(0, kvm->arch.lpid); in kvmppc_core_destroy_vm_hv()
5748 kvmppc_free_lpid(kvm->arch.lpid); in kvmppc_core_destroy_vm_hv()
5783 return -EIO; in kvmppc_core_check_processor_compat_hv()
5790 kfree(kvm->arch.pimap); in kvmppc_free_pimap()
5812 return -EIO; in kvmppc_set_passthru_irq()
5814 mutex_lock(&kvm->lock); in kvmppc_set_passthru_irq()
5816 pimap = kvm->arch.pimap; in kvmppc_set_passthru_irq()
5821 mutex_unlock(&kvm->lock); in kvmppc_set_passthru_irq()
5822 return -ENOMEM; in kvmppc_set_passthru_irq()
5824 kvm->arch.pimap = pimap; in kvmppc_set_passthru_irq()
5830 * what our real-mode EOI code does, or a XIVE interrupt in kvmppc_set_passthru_irq()
5832 chip = irq_data_get_irq_chip(&desc->irq_data); in kvmppc_set_passthru_irq()
5836 mutex_unlock(&kvm->lock); in kvmppc_set_passthru_irq()
5837 return -ENOENT; in kvmppc_set_passthru_irq()
5843 * otherwise re-use this entry. in kvmppc_set_passthru_irq()
5845 for (i = 0; i < pimap->n_mapped; i++) { in kvmppc_set_passthru_irq()
5846 if (guest_gsi == pimap->mapped[i].v_hwirq) { in kvmppc_set_passthru_irq()
5847 if (pimap->mapped[i].r_hwirq) { in kvmppc_set_passthru_irq()
5848 mutex_unlock(&kvm->lock); in kvmppc_set_passthru_irq()
5849 return -EINVAL; in kvmppc_set_passthru_irq()
5856 mutex_unlock(&kvm->lock); in kvmppc_set_passthru_irq()
5857 return -EAGAIN; /* table is full */ in kvmppc_set_passthru_irq()
5860 irq_map = &pimap->mapped[i]; in kvmppc_set_passthru_irq()
5862 irq_map->v_hwirq = guest_gsi; in kvmppc_set_passthru_irq()
5863 irq_map->desc = desc; in kvmppc_set_passthru_irq()
5872 * The 'host_irq' number is mapped in the PCI-MSI domain but in kvmppc_set_passthru_irq()
5877 irq_map->r_hwirq = (unsigned int)irqd_to_hwirq(host_data); in kvmppc_set_passthru_irq()
5879 if (i == pimap->n_mapped) in kvmppc_set_passthru_irq()
5880 pimap->n_mapped++; in kvmppc_set_passthru_irq()
5885 kvmppc_xics_set_mapped(kvm, guest_gsi, irq_map->r_hwirq); in kvmppc_set_passthru_irq()
5887 irq_map->r_hwirq = 0; in kvmppc_set_passthru_irq()
5889 mutex_unlock(&kvm->lock); in kvmppc_set_passthru_irq()
5905 return -EIO; in kvmppc_clr_passthru_irq()
5907 mutex_lock(&kvm->lock); in kvmppc_clr_passthru_irq()
5908 if (!kvm->arch.pimap) in kvmppc_clr_passthru_irq()
5911 pimap = kvm->arch.pimap; in kvmppc_clr_passthru_irq()
5913 for (i = 0; i < pimap->n_mapped; i++) { in kvmppc_clr_passthru_irq()
5914 if (guest_gsi == pimap->mapped[i].v_hwirq) in kvmppc_clr_passthru_irq()
5918 if (i == pimap->n_mapped) { in kvmppc_clr_passthru_irq()
5919 mutex_unlock(&kvm->lock); in kvmppc_clr_passthru_irq()
5920 return -ENODEV; in kvmppc_clr_passthru_irq()
5926 kvmppc_xics_clr_mapped(kvm, guest_gsi, pimap->mapped[i].r_hwirq); in kvmppc_clr_passthru_irq()
5929 pimap->mapped[i].r_hwirq = 0; in kvmppc_clr_passthru_irq()
5936 mutex_unlock(&kvm->lock); in kvmppc_clr_passthru_irq()
5947 irqfd->producer = prod; in kvmppc_irq_bypass_add_producer_hv()
5949 ret = kvmppc_set_passthru_irq(irqfd->kvm, prod->irq, irqfd->gsi); in kvmppc_irq_bypass_add_producer_hv()
5952 prod->irq, irqfd->gsi, ret); in kvmppc_irq_bypass_add_producer_hv()
5964 irqfd->producer = NULL; in kvmppc_irq_bypass_del_producer_hv()
5968 * default external interrupt handling mode - KVM real mode in kvmppc_irq_bypass_del_producer_hv()
5971 ret = kvmppc_clr_passthru_irq(irqfd->kvm, prod->irq, irqfd->gsi); in kvmppc_irq_bypass_del_producer_hv()
5974 prod->irq, irqfd->gsi, ret); in kvmppc_irq_bypass_del_producer_hv()
5981 struct kvm *kvm __maybe_unused = filp->private_data; in kvm_arch_vm_ioctl_hv()
5992 r = -EOPNOTSUPP; in kvm_arch_vm_ioctl_hv()
5996 r = -EFAULT; in kvm_arch_vm_ioctl_hv()
6009 r = -EFAULT; in kvm_arch_vm_ioctl_hv()
6019 r = -EFAULT; in kvm_arch_vm_ioctl_hv()
6030 r = -EFAULT; in kvm_arch_vm_ioctl_hv()
6039 r = -ENOTTY; in kvm_arch_vm_ioctl_hv()
6048 * all hcalls that were implemented before the hcall-enabling
6098 return -ENODEV; in kvmhv_configure_mmu()
6101 if (cfg->flags & ~(KVM_PPC_MMUV3_RADIX | KVM_PPC_MMUV3_GTSE)) in kvmhv_configure_mmu()
6102 return -EINVAL; in kvmhv_configure_mmu()
6105 radix = !!(cfg->flags & KVM_PPC_MMUV3_RADIX); in kvmhv_configure_mmu()
6106 if (!!(cfg->process_table & PATB_GR) != radix) in kvmhv_configure_mmu()
6107 return -EINVAL; in kvmhv_configure_mmu()
6110 if ((cfg->process_table & PRTS_MASK) > 24) in kvmhv_configure_mmu()
6111 return -EINVAL; in kvmhv_configure_mmu()
6115 return -EINVAL; in kvmhv_configure_mmu()
6119 return -EINVAL; in kvmhv_configure_mmu()
6121 mutex_lock(&kvm->arch.mmu_setup_lock); in kvmhv_configure_mmu()
6123 if (kvm->arch.mmu_ready) { in kvmhv_configure_mmu()
6124 kvm->arch.mmu_ready = 0; in kvmhv_configure_mmu()
6127 if (atomic_read(&kvm->arch.vcpus_running)) { in kvmhv_configure_mmu()
6128 kvm->arch.mmu_ready = 1; in kvmhv_configure_mmu()
6129 err = -EBUSY; in kvmhv_configure_mmu()
6141 kvm->arch.process_table = cfg->process_table; in kvmhv_configure_mmu()
6144 lpcr = (cfg->flags & KVM_PPC_MMUV3_GTSE) ? LPCR_GTSE : 0; in kvmhv_configure_mmu()
6149 mutex_unlock(&kvm->arch.mmu_setup_lock); in kvmhv_configure_mmu()
6156 return -EPERM; in kvmhv_enable_nested()
6158 return -ENODEV; in kvmhv_enable_nested()
6160 return -ENODEV; in kvmhv_enable_nested()
6162 return -ENODEV; in kvmhv_enable_nested()
6166 kvm->arch.nested_enable = true; in kvmhv_enable_nested()
6173 int rc = -EINVAL; in kvmhv_load_from_eaddr()
6179 rc = -EINVAL; in kvmhv_load_from_eaddr()
6183 if (rc && vcpu->arch.nested) in kvmhv_load_from_eaddr()
6184 rc = -EAGAIN; in kvmhv_load_from_eaddr()
6192 int rc = -EINVAL; in kvmhv_store_to_eaddr()
6198 rc = -EINVAL; in kvmhv_store_to_eaddr()
6202 if (rc && vcpu->arch.nested) in kvmhv_store_to_eaddr()
6203 rc = -EAGAIN; in kvmhv_store_to_eaddr()
6211 vpa->gpa = 0; in unpin_vpa_reset()
6212 vpa->pinned_addr = NULL; in unpin_vpa_reset()
6213 vpa->dirty = false; in unpin_vpa_reset()
6214 vpa->update_pending = 0; in unpin_vpa_reset()
6226 return -EINVAL; in kvmhv_enable_svm()
6228 kvm->arch.svm_enabled = 1; in kvmhv_enable_svm()
6235 * - Release all device pages
6236 * - Issue ucall to terminate the guest on the UV side
6237 * - Unpin the VPA pages.
6238 * - Reinit the partition scoped page tables
6248 if (!(kvm->arch.secure_guest & KVMPPC_SECURE_INIT_START)) in kvmhv_svm_off()
6251 mutex_lock(&kvm->arch.mmu_setup_lock); in kvmhv_svm_off()
6252 mmu_was_ready = kvm->arch.mmu_ready; in kvmhv_svm_off()
6253 if (kvm->arch.mmu_ready) { in kvmhv_svm_off()
6254 kvm->arch.mmu_ready = 0; in kvmhv_svm_off()
6257 if (atomic_read(&kvm->arch.vcpus_running)) { in kvmhv_svm_off()
6258 kvm->arch.mmu_ready = 1; in kvmhv_svm_off()
6259 ret = -EBUSY; in kvmhv_svm_off()
6264 srcu_idx = srcu_read_lock(&kvm->srcu); in kvmhv_svm_off()
6275 uv_unregister_mem_slot(kvm->arch.lpid, memslot->id); in kvmhv_svm_off()
6278 srcu_read_unlock(&kvm->srcu, srcu_idx); in kvmhv_svm_off()
6280 ret = uv_svm_terminate(kvm->arch.lpid); in kvmhv_svm_off()
6282 ret = -EINVAL; in kvmhv_svm_off()
6288 * to UV via UV_PAGE_IN before the non-boot vcpus get a in kvmhv_svm_off()
6297 spin_lock(&vcpu->arch.vpa_update_lock); in kvmhv_svm_off()
6298 unpin_vpa_reset(kvm, &vcpu->arch.dtl); in kvmhv_svm_off()
6299 unpin_vpa_reset(kvm, &vcpu->arch.slb_shadow); in kvmhv_svm_off()
6300 unpin_vpa_reset(kvm, &vcpu->arch.vpa); in kvmhv_svm_off()
6301 spin_unlock(&vcpu->arch.vpa_update_lock); in kvmhv_svm_off()
6305 kvm->arch.secure_guest = 0; in kvmhv_svm_off()
6306 kvm->arch.mmu_ready = mmu_was_ready; in kvmhv_svm_off()
6308 mutex_unlock(&kvm->arch.mmu_setup_lock); in kvmhv_svm_off()
6315 return -ENODEV; in kvmhv_enable_dawr1()
6319 kvm->arch.dawr1_enabled = true; in kvmhv_enable_dawr1()
6406 if (paca_ptrs[first_cpu]->sibling_subcore_state) in kvm_init_subcore_bitmap()
6413 return -ENOMEM; in kvm_init_subcore_bitmap()
6419 paca_ptrs[cpu]->sibling_subcore_state = in kvm_init_subcore_bitmap()
6436 pr_err("KVM-HV: Host does not support TLBIE\n"); in kvmppc_book3s_init_hv()
6437 return -ENODEV; in kvmppc_book3s_init_hv()
6445 return -ENODEV; in kvmppc_book3s_init_hv()
6459 * either directly, via paca_ptrs[cpu]->kvm_hstate.xics_phys, or in kvmppc_book3s_init_hv()
6464 !local_paca->kvm_hstate.xics_phys) { in kvmppc_book3s_init_hv()
6467 np = of_find_compatible_node(NULL, NULL, "ibm,opal-intc"); in kvmppc_book3s_init_hv()
6469 pr_err("KVM-HV: Cannot determine method for accessing XICS\n"); in kvmppc_book3s_init_hv()
6470 r = -ENODEV; in kvmppc_book3s_init_hv()
6473 /* presence of intc confirmed - node can be dropped again */ in kvmppc_book3s_init_hv()
6494 pr_err("KVM-HV: kvmppc_uvmem_init failed %d\n", r); in kvmppc_book3s_init_hv()