diff options
Diffstat (limited to 'hw/intc/ioapic.c')
| -rw-r--r-- | hw/intc/ioapic.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/hw/intc/ioapic.c b/hw/intc/ioapic.c index a00d88210a..31791b0986 100644 --- a/hw/intc/ioapic.c +++ b/hw/intc/ioapic.c @@ -21,6 +21,7 @@ */ #include "qemu/osdep.h" +#include "qemu/error-report.h" #include "monitor/monitor.h" #include "hw/hw.h" #include "hw/i386/pc.h" @@ -269,7 +270,7 @@ ioapic_mem_read(void *opaque, hwaddr addr, unsigned int size) val = s->id << IOAPIC_ID_SHIFT; break; case IOAPIC_REG_VER: - val = IOAPIC_VERSION | + val = s->version | ((IOAPIC_NUM_PINS - 1) << IOAPIC_VER_ENTRIES_SHIFT); break; default: @@ -358,6 +359,13 @@ ioapic_mem_write(void *opaque, hwaddr addr, uint64_t val, } } break; + case IOAPIC_EOI: + /* Explicit EOI is only supported for IOAPIC version 0x20 */ + if (size != 4 || s->version != 0x20) { + break; + } + ioapic_eoi_broadcast(val); + break; } ioapic_update_kvm_routes(s); @@ -391,6 +399,12 @@ static void ioapic_realize(DeviceState *dev, Error **errp) { IOAPICCommonState *s = IOAPIC_COMMON(dev); + if (s->version != 0x11 && s->version != 0x20) { + error_report("IOAPIC only supports version 0x11 or 0x20 " + "(default: 0x11)."); + exit(1); + } + memory_region_init_io(&s->io_memory, OBJECT(s), &ioapic_io_ops, s, "ioapic", 0x1000); @@ -401,6 +415,11 @@ static void ioapic_realize(DeviceState *dev, Error **errp) qemu_add_machine_init_done_notifier(&s->machine_done); } +static Property ioapic_properties[] = { + DEFINE_PROP_UINT8("version", IOAPICCommonState, version, 0x11), + DEFINE_PROP_END_OF_LIST(), +}; + static void ioapic_class_init(ObjectClass *klass, void *data) { IOAPICCommonClass *k = IOAPIC_COMMON_CLASS(klass); @@ -408,6 +427,7 @@ static void ioapic_class_init(ObjectClass *klass, void *data) k->realize = ioapic_realize; dc->reset = ioapic_reset_common; + dc->props = ioapic_properties; } static const TypeInfo ioapic_info = { |