diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/trace.h | 18 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 29 |
2 files changed, 29 insertions, 18 deletions
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index 105037a251b5..e3a24b8f04be 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -1339,23 +1339,25 @@ TRACE_EVENT(kvm_hv_stimer_cleanup, __entry->vcpu_id, __entry->timer_index) ); -TRACE_EVENT(kvm_apicv_update_request, - TP_PROTO(int reason, bool activate), - TP_ARGS(reason, activate), +TRACE_EVENT(kvm_apicv_inhibit_changed, + TP_PROTO(int reason, bool set, unsigned long inhibits), + TP_ARGS(reason, set, inhibits), TP_STRUCT__entry( __field(int, reason) - __field(bool, activate) + __field(bool, set) + __field(unsigned long, inhibits) ), TP_fast_assign( __entry->reason = reason; - __entry->activate = activate; + __entry->set = set; + __entry->inhibits = inhibits; ), - TP_printk("%s reason=%u", - __entry->activate ? "activate" : "deactivate", - __entry->reason) + TP_printk("%s reason=%u, inhibits=0x%lx", + __entry->set ? "set" : "cleared", + __entry->reason, __entry->inhibits) ); TRACE_EVENT(kvm_apicv_accept_irq, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ede81264c06f..129003ad3784 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9062,15 +9062,29 @@ bool kvm_apicv_activated(struct kvm *kvm) } EXPORT_SYMBOL_GPL(kvm_apicv_activated); + +static void set_or_clear_apicv_inhibit(unsigned long *inhibits, + enum kvm_apicv_inhibit reason, bool set) +{ + if (set) + __set_bit(reason, inhibits); + else + __clear_bit(reason, inhibits); + + trace_kvm_apicv_inhibit_changed(reason, set, *inhibits); +} + static void kvm_apicv_init(struct kvm *kvm) { + unsigned long *inhibits = &kvm->arch.apicv_inhibit_reasons; + init_rwsem(&kvm->arch.apicv_update_lock); - set_bit(APICV_INHIBIT_REASON_ABSENT, - &kvm->arch.apicv_inhibit_reasons); + set_or_clear_apicv_inhibit(inhibits, APICV_INHIBIT_REASON_ABSENT, true); + if (!enable_apicv) - set_bit(APICV_INHIBIT_REASON_DISABLE, - &kvm->arch.apicv_inhibit_reasons); + set_or_clear_apicv_inhibit(inhibits, + APICV_INHIBIT_REASON_ABSENT, true); } static void kvm_sched_yield(struct kvm_vcpu *vcpu, unsigned long dest_id) @@ -9756,13 +9770,9 @@ void __kvm_set_or_clear_apicv_inhibit(struct kvm *kvm, old = new = kvm->arch.apicv_inhibit_reasons; - if (set) - __set_bit(reason, &new); - else - __clear_bit(reason, &new); + set_or_clear_apicv_inhibit(&new, reason, set); if (!!old != !!new) { - trace_kvm_apicv_update_request(reason, !set); /* * Kick all vCPUs before setting apicv_inhibit_reasons to avoid * false positives in the sanity check WARN in svm_vcpu_run(). @@ -12945,7 +12955,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_pi_irte_update); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_avic_unaccelerated_access); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_avic_incomplete_ipi); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_avic_ga_log); -EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_apicv_update_request); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_apicv_accept_irq); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_vmgexit_enter); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_vmgexit_exit); |