diff options
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/ioapic.c | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 1539d3757a04..0b4914147b9d 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -50,7 +50,7 @@ #else #define ioapic_debug(fmt, arg...) #endif -static int ioapic_deliver(struct kvm_ioapic *vioapic, int irq, +static int ioapic_service(struct kvm_ioapic *vioapic, int irq, bool line_status); static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic, @@ -163,23 +163,6 @@ static bool rtc_irq_check_coalesced(struct kvm_ioapic *ioapic) return false; } -static int ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx, - bool line_status) -{ - union kvm_ioapic_redirect_entry *pent; - int injected = -1; - - pent = &ioapic->redirtbl[idx]; - - if (!pent->fields.mask) { - injected = ioapic_deliver(ioapic, idx, line_status); - if (injected && pent->fields.trig_mode == IOAPIC_LEVEL_TRIG) - pent->fields.remote_irr = 1; - } - - return injected; -} - static void update_handled_vectors(struct kvm_ioapic *ioapic) { DECLARE_BITMAP(handled_vectors, 256); @@ -282,12 +265,15 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) } } -static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq, bool line_status) +static int ioapic_service(struct kvm_ioapic *ioapic, int irq, bool line_status) { union kvm_ioapic_redirect_entry *entry = &ioapic->redirtbl[irq]; struct kvm_lapic_irq irqe; int ret; + if (entry->fields.mask) + return -1; + ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x " "vector=%x trig_mode=%x\n", entry->fields.dest_id, entry->fields.dest_mode, @@ -310,6 +296,9 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq, bool line_status) } else ret = kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe, NULL); + if (ret && irqe.trig_mode == IOAPIC_LEVEL_TRIG) + entry->fields.remote_irr = 1; + return ret; } @@ -393,7 +382,7 @@ static void __kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG); ent->fields.remote_irr = 0; - if (!ent->fields.mask && (ioapic->irr & (1 << i))) + if (ioapic->irr & (1 << i)) ioapic_service(ioapic, i, false); } } |