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microvm/acpi: add minimal acpi support

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$subject says all.  Can be controlled using -M microvm,acpi=on/off.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-9-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2020-09-15 14:08:56 +02:00
parent d4e9d577be
commit 8045df14bc
6 changed files with 246 additions and 1 deletions
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40
hw/i386/microvm.c
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@ -26,6 +26,8 @@
#include "sysemu/cpus.h"
#include "sysemu/numa.h"
#include "sysemu/reset.h"
#include "sysemu/runstate.h"
#include "acpi-microvm.h"
#include "hw/loader.h"
#include "hw/irq.h"
@ -41,6 +43,8 @@
#include "hw/i386/e820_memory_layout.h"
#include "hw/i386/fw_cfg.h"
#include "hw/virtio/virtio-mmio.h"
#include "hw/acpi/acpi.h"
#include "hw/acpi/generic_event_device.h"
#include "cpu.h"
#include "elf.h"
@ -129,6 +133,17 @@ static void microvm_devices_init(MicrovmMachineState *mms)
}
/* Optional and legacy devices */
if (x86_machine_is_acpi_enabled(x86ms)) {
DeviceState *dev = qdev_new(TYPE_ACPI_GED_X86);
qdev_prop_set_uint32(dev, "ged-event", ACPI_GED_PWR_DOWN_EVT);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, GED_MMIO_BASE);
/* sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, GED_MMIO_BASE_MEMHP); */
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, GED_MMIO_BASE_REGS);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
x86ms->gsi[GED_MMIO_IRQ]);
sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
mms->acpi_dev = ACPI_DEVICE_IF(dev);
}
if (mms->pic == ON_OFF_AUTO_ON || mms->pic == ON_OFF_AUTO_AUTO) {
qemu_irq *i8259;
@ -438,6 +453,26 @@ static void microvm_machine_set_auto_kernel_cmdline(Object *obj, bool value,
mms->auto_kernel_cmdline = value;
}
static void microvm_machine_done(Notifier *notifier, void *data)
{
MicrovmMachineState *mms = container_of(notifier, MicrovmMachineState,
machine_done);
acpi_setup_microvm(mms);
}
static void microvm_powerdown_req(Notifier *notifier, void *data)
{
MicrovmMachineState *mms = container_of(notifier, MicrovmMachineState,
powerdown_req);
if (mms->acpi_dev) {
Object *obj = OBJECT(mms->acpi_dev);
AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
adevc->send_event(mms->acpi_dev, ACPI_POWER_DOWN_STATUS);
}
}
static void microvm_machine_initfn(Object *obj)
{
MicrovmMachineState *mms = MICROVM_MACHINE(obj);
@ -452,6 +487,11 @@ static void microvm_machine_initfn(Object *obj)
/* State */
mms->kernel_cmdline_fixed = false;
mms->machine_done.notify = microvm_machine_done;
qemu_add_machine_init_done_notifier(&mms->machine_done);
mms->powerdown_req.notify = microvm_powerdown_req;
qemu_register_powerdown_notifier(&mms->powerdown_req);
}
static void microvm_class_init(ObjectClass *oc, void *data)