diff options
Diffstat (limited to 'virt/kvm/ioapic.c')
-rw-r--r-- | virt/kvm/ioapic.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 26fd54dc459e..ef61d529a6c4 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c | |||
@@ -191,7 +191,8 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq) | |||
191 | return kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe); | 191 | return kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe); |
192 | } | 192 | } |
193 | 193 | ||
194 | int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level) | 194 | int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id, |
195 | int level) | ||
195 | { | 196 | { |
196 | u32 old_irr; | 197 | u32 old_irr; |
197 | u32 mask = 1 << irq; | 198 | u32 mask = 1 << irq; |
@@ -201,9 +202,11 @@ int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level) | |||
201 | spin_lock(&ioapic->lock); | 202 | spin_lock(&ioapic->lock); |
202 | old_irr = ioapic->irr; | 203 | old_irr = ioapic->irr; |
203 | if (irq >= 0 && irq < IOAPIC_NUM_PINS) { | 204 | if (irq >= 0 && irq < IOAPIC_NUM_PINS) { |
205 | int irq_level = __kvm_irq_line_state(&ioapic->irq_states[irq], | ||
206 | irq_source_id, level); | ||
204 | entry = ioapic->redirtbl[irq]; | 207 | entry = ioapic->redirtbl[irq]; |
205 | level ^= entry.fields.polarity; | 208 | irq_level ^= entry.fields.polarity; |
206 | if (!level) | 209 | if (!irq_level) |
207 | ioapic->irr &= ~mask; | 210 | ioapic->irr &= ~mask; |
208 | else { | 211 | else { |
209 | int edge = (entry.fields.trig_mode == IOAPIC_EDGE_TRIG); | 212 | int edge = (entry.fields.trig_mode == IOAPIC_EDGE_TRIG); |
@@ -221,6 +224,16 @@ int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level) | |||
221 | return ret; | 224 | return ret; |
222 | } | 225 | } |
223 | 226 | ||
227 | void kvm_ioapic_clear_all(struct kvm_ioapic *ioapic, int irq_source_id) | ||
228 | { | ||
229 | int i; | ||
230 | |||
231 | spin_lock(&ioapic->lock); | ||
232 | for (i = 0; i < KVM_IOAPIC_NUM_PINS; i++) | ||
233 | __clear_bit(irq_source_id, &ioapic->irq_states[i]); | ||
234 | spin_unlock(&ioapic->lock); | ||
235 | } | ||
236 | |||
224 | static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int vector, | 237 | static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int vector, |
225 | int trigger_mode) | 238 | int trigger_mode) |
226 | { | 239 | { |