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acpi: use notifier for signaling guest system_powerdown command

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In addition, there is no need to allocate an extra irq just for
rising SCI in irq handler. Just rise SCI right from notifier
handler instead.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Igor Mammedov 2012-09-05 23:06:22 +02:00 committed by Anthony Liguori
parent a9552c8edb
commit d010f91c3a
1 changed files with 5 additions and 3 deletions
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8
hw/acpi_piix4.c
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@ -67,6 +67,7 @@ typedef struct PIIX4PMState {
qemu_irq smi_irq; qemu_irq smi_irq;
int kvm_enabled; int kvm_enabled;
Notifier machine_ready; Notifier machine_ready;
Notifier powerdown_notifier;
/* for pci hotplug */ /* for pci hotplug */
struct pci_status pci0_status; struct pci_status pci0_status;
@ -362,9 +363,9 @@ static void piix4_reset(void *opaque)
piix4_update_hotplug(s); piix4_update_hotplug(s);
} }
static void piix4_powerdown(void *opaque, int irq, int power_failing) static void piix4_pm_powerdown_req(Notifier *n, void *opaque)
{ {
PIIX4PMState *s = opaque; PIIX4PMState *s = container_of(n, PIIX4PMState, powerdown_notifier);
assert(s != NULL); assert(s != NULL);
acpi_pm1_evt_power_down(&s->ar); acpi_pm1_evt_power_down(&s->ar);
@ -416,7 +417,8 @@ static int piix4_pm_initfn(PCIDevice *dev)
acpi_pm_tmr_init(&s->ar, pm_tmr_timer); acpi_pm_tmr_init(&s->ar, pm_tmr_timer);
acpi_gpe_init(&s->ar, GPE_LEN); acpi_gpe_init(&s->ar, GPE_LEN);
qemu_system_powerdown = *qemu_allocate_irqs(piix4_powerdown, s, 1); s->powerdown_notifier.notify = piix4_pm_powerdown_req;
qemu_register_powerdown_notifier(&s->powerdown_notifier);
pm_smbus_init(&s->dev.qdev, &s->smb); pm_smbus_init(&s->dev.qdev, &s->smb);
s->machine_ready.notify = piix4_pm_machine_ready; s->machine_ready.notify = piix4_pm_machine_ready;