arch/x86/ioapic.cpp

46 #define IO_APIC_REDIRECTION_TABLE			0x10 // entry = base + 2 * index
58 // Fields of each redirection table entry
196 	uint64 entry = ioapic_read_64(ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2);
197 	entry &= ~(IO_APIC_TRIGGER_MODE_MASK | IO_APIC_PIN_POLARITY_MASK
201 		entry |= IO_APIC_TRIGGER_MODE_LEVEL;
204 		entry |= IO_APIC_TRIGGER_MODE_EDGE;
209 		entry |= IO_APIC_PIN_POLARITY_LOW_ACTIVE;
211 		entry |= IO_APIC_PIN_POLARITY_HIGH_ACTIVE;
213 	entry |= deliveryMode;
214 	entry |= (vector + ARCH_INTERRUPT_BASE) << IO_APIC_INTERRUPT_VECTOR_SHIFT;
215 	ioapic_write_64(ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2, entry, true);
264 	uint64 entry = ioapic_read_64(*ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2);
265 	entry &= ~(uint64(IO_APIC_DESTINATION_FIELD_MASK)
267 	entry |= uint64(apicid) << IO_APIC_DESTINATION_FIELD_SHIFT;
268 	ioapic_write_64(*ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2, entry, false);
275 	// If enabling an overriden source is attempted, enable the override entry
291 	uint64 entry = ioapic_read_64(*ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2);
292 	entry &= ~IO_APIC_INTERRUPT_MASKED;
293 	ioapic_write_64(*ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2, entry, false);
308 	uint64 entry = ioapic_read_64(*ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2);
309 	entry |= IO_APIC_INTERRUPT_MASKED;
310 	ioapic_write_64(*ioapic, IO_APIC_REDIRECTION_TABLE + pin * 2, entry, true);
359 		dprintf("io-apic %u entry count %d exceeds max supported, only using the "
386 		uint64 entry = ((uint64)targetAPIC << IO_APIC_DESTINATION_FIELD_SHIFT)
392 			entry |= IO_APIC_TRIGGER_MODE_EDGE
397 			entry |= IO_APIC_TRIGGER_MODE_EDGE
402 			entry |= IO_APIC_TRIGGER_MODE_LEVEL
408 		ioapic_write_64(ioapic, IO_APIC_REDIRECTION_TABLE + 2 * i, entry, true);
790 		irq_routing_entry& entry = table.ElementAt(i);
791 		ioapic_configure_io_interrupt(entry.irq,
792 			entry.polarity | entry.trigger_mode);