diff options
Diffstat (limited to 'hw/rtc/mc146818rtc.c')
| -rw-r--r-- | hw/rtc/mc146818rtc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/hw/rtc/mc146818rtc.c b/hw/rtc/mc146818rtc.c index 9c30cbdcd7..1e9fa0f33f 100644 --- a/hw/rtc/mc146818rtc.c +++ b/hw/rtc/mc146818rtc.c @@ -27,6 +27,7 @@ #include "qemu/cutils.h" #include "qemu/module.h" #include "qemu/bcd.h" +#include "hw/acpi/aml-build.h" #include "hw/irq.h" #include "hw/qdev-properties.h" #include "qemu/timer.h" @@ -1007,13 +1008,36 @@ static void rtc_resetdev(DeviceState *d) } } +static void rtc_build_aml(ISADevice *isadev, Aml *scope) +{ + Aml *dev; + Aml *crs; + + /* + * Reserving 8 io ports here, following what physical hardware + * does, even though qemu only responds to the first two ports. + */ + crs = aml_resource_template(); + aml_append(crs, aml_io(AML_DECODE16, RTC_ISA_BASE, RTC_ISA_BASE, + 0x01, 0x08)); + aml_append(crs, aml_irq_no_flags(RTC_ISA_IRQ)); + + dev = aml_device("RTC"); + aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0B00"))); + aml_append(dev, aml_name_decl("_CRS", crs)); + + aml_append(scope, dev); +} + static void rtc_class_initfn(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); + ISADeviceClass *isa = ISA_DEVICE_CLASS(klass); dc->realize = rtc_realizefn; dc->reset = rtc_resetdev; dc->vmsd = &vmstate_rtc; + isa->build_aml = rtc_build_aml; device_class_set_props(dc, mc146818rtc_properties); } |