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-rw-r--r--hw/acpi/ich9.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index bd9bbade70..ea4182256d 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -316,8 +316,9 @@ void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
pm->smm_enabled = smm_enabled;
- pm->enable_tco = true;
- acpi_pm_tco_init(&pm->tco_regs, &pm->io);
+ if (pm->enable_tco) {
+ acpi_pm_tco_init(&pm->tco_regs, &pm->io);
+ }
if (pm->use_acpi_hotplug_bridge) {
acpi_pcihp_init(OBJECT(lpc_pci),
@@ -440,6 +441,7 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm)
pm->s4_val = 2;
pm->use_acpi_hotplug_bridge = true;
pm->keep_pci_slot_hpc = true;
+ pm->enable_tco = true;
object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE,
&pm->pm_io_base, OBJ_PROP_FLAG_READ);