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-rw-r--r--hw/acpi/piix4.c2
-rw-r--r--hw/i2c/pm_smbus.c5
-rw-r--r--hw/i2c/smbus_ich9.c2
-rw-r--r--hw/isa/vt82c686.c2
4 files changed, 7 insertions, 4 deletions
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 6404af5f33..e330f24c71 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -512,7 +512,7 @@ static void piix4_pm_realize(PCIDevice *dev, Error **errp)
     pci_conf[0x90] = s->smb_io_base | 1;
     pci_conf[0x91] = s->smb_io_base >> 8;
     pci_conf[0xd2] = 0x09;
-    pm_smbus_init(DEVICE(dev), &s->smb);
+    pm_smbus_init(DEVICE(dev), &s->smb, true);
     memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1);
     memory_region_add_subregion(pci_address_space_io(dev),
                                 s->smb_io_base, &s->smb.io);
diff --git a/hw/i2c/pm_smbus.c b/hw/i2c/pm_smbus.c
index 91ee444590..685a2378ed 100644
--- a/hw/i2c/pm_smbus.c
+++ b/hw/i2c/pm_smbus.c
@@ -402,11 +402,14 @@ static const MemoryRegionOps pm_smbus_ops = {
     .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
-void pm_smbus_init(DeviceState *parent, PMSMBus *smb)
+void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk)
 {
     smb->op_done = true;
     smb->reset = pm_smbus_reset;
     smb->smbus = i2c_init_bus(parent, "i2c");
+    if (force_aux_blk) {
+        smb->smb_auxctl |= AUX_BLK;
+    }
     memory_region_init_io(&smb->io, OBJECT(parent), &pm_smbus_ops, smb,
                           "pm-smbus", 64);
 }
diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c
index 522a703c26..2a8b49e02f 100644
--- a/hw/i2c/smbus_ich9.c
+++ b/hw/i2c/smbus_ich9.c
@@ -86,7 +86,7 @@ static void ich9_smbus_realize(PCIDevice *d, Error **errp)
     pci_set_byte(d->config + ICH9_SMB_HOSTC, 0);
     /* TODO bar0, bar1: 64bit BAR support*/
 
-    pm_smbus_init(&d->qdev, &s->smb);
+    pm_smbus_init(&d->qdev, &s->smb, false);
     pci_register_bar(d, ICH9_SMB_SMB_BASE_BAR, PCI_BASE_ADDRESS_SPACE_IO,
                      &s->smb.io);
 }
diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index cff1946232..7302f6d74b 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -370,7 +370,7 @@ static void vt82c686b_pm_realize(PCIDevice *dev, Error **errp)
     pci_conf[0x90] = s->smb_io_base | 1;
     pci_conf[0x91] = s->smb_io_base >> 8;
     pci_conf[0xd2] = 0x90;
-    pm_smbus_init(&s->dev.qdev, &s->smb);
+    pm_smbus_init(&s->dev.qdev, &s->smb, false);
     memory_region_add_subregion(get_system_io(), s->smb_io_base, &s->smb.io);
 
     apm_init(dev, &s->apm, NULL, s);